do_initcalls()

do_initcalls()

init/main.c

static void __init do_initcalls(void)
{
        int level;

        for (level = 0; level < ARRAY_SIZE(initcall_levels) - 1; level++)
                do_initcall_level(level);
}

0 레벨부터 7 레벨까지 단계별로 *_initcall() 매크로 함수로 등록된 함수들을 모두 호출한다.

do_initcall_level()

init/main.c

static void __init do_initcall_level(int level)
{
        initcall_t *fn;

        strcpy(initcall_command_line, saved_command_line);
        parse_args(initcall_level_names[level],
                   initcall_command_line, __start___param,
                   __stop___param - __start___param,
                   level, level,
                   NULL, &repair_env_string);

        for (fn = initcall_levels[level]; fn < initcall_levels[level+1]; fn++)
                do_one_initcall(*fn);
}

커멘드 라인 파라메터들을 파싱하여 커널에 등록된 파라메터들 중 요청 레벨 및 이름이 모두 매치되는 파라메터를 해당함수를 호출하여 설정한다. 그 후 지정된 레벨에 등록된 initcall 함수들을 모두 호출한다.

do_one_initcall()

init/main.c

int __init_or_module do_one_initcall(initcall_t fn)
{
        int count = preempt_count();
        int ret;
        char msgbuf[64];

        if (initcall_blacklisted(fn))
                return -EPERM;

        if (initcall_debug)
                ret = do_one_initcall_debug(fn);
        else
                ret = fn();

        msgbuf[0] = 0;

        if (preempt_count() != count) {
                sprintf(msgbuf, "preemption imbalance ");
                preempt_count_set(count);
        }
        if (irqs_disabled()) {
                strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf));
                local_irq_enable();
        }
        WARN(msgbuf[0], "initcall %pF returned with %s\n", fn, msgbuf);

        add_latent_entropy();
        return ret;
}

initcall 함수 하나를 호출한다. 커널 파라메터를 사용하여 블랙리스트에 등록된 함수들은 실행하지 않는다.

initcall 레벨별 주요 파라메터

각 단계별 주요 파라메터명 및 호출 함수를 확인해보자. 참고로 현재 커널 소스에는 0레벨과 1레벨만 등록하여 사용하고 있다.

레벨 0: 이 레벨은 셋업 함수와 연동된다.
- early_param(“earlycon”, param_setup_earlycon);
- early_param(“cma”, early_cma);
- early_param(“sysfs.deprecated”, sysfs_deprecated_setup);
- early_param(“kgdbdbgp”, kgdbdbgp_parse_config);
레벨 1: 이 레벨은 변수와 연동된다.
- core_param(panic, panic_timeout, int, 0644);
- core_param(irqtime, irqtime, int, 0400);
- core_param(nomodule, modules_disabled, bint, 0);
- core_param(module_blacklist, module_blacklist, charp, 0400);
- core_param(consoleblank, blankinterval, int, 0444);
- core_param(initcall_debug, initcall_debug, bool, 0644);
참고
- Linux Debugging using a Bootloader with Kernel Parameters | Askapache

각 단계별 initcall에 해당하는 이름은 다음에서 확인할 수 있다.

init/main.c

/* Keep these in sync with initcalls in include/linux/init.h */
static char *initcall_level_names[] __initdata = {
        "early",
        "core",
        "postcore",
        "arch",
        "subsys",
        "fs",
        "device",
        "late",
};

레벨별 initcall 함수가 모여있는 섹션의 시작 위치를 담은 배열은 다음에서 확인할 수 있다.

init/main.c

static initcall_t *initcall_levels[] __initdata = {
        __initcall0_start,
        __initcall1_start,
        __initcall2_start,
        __initcall3_start,
        __initcall4_start,
        __initcall5_start,
        __initcall6_start,
        __initcall7_start,
        __initcall_end,
};

initcall 섹션

initcall 함수들이 위치하는 곳은 컴파일 타임에 .init.data 섹션의 INIT_CALLS 매크로 자리에 위치하게된다.

arch/arm64/kernel/vmlinux.lds.S

...
        .init.data : {
                INIT_DATA
                INIT_SETUP(16)
                INIT_CALLS
                CON_INITCALL
                SECURITY_INITCALL
                INIT_RAM_FS
                *(.init.rodata.* .init.bss)     /* from the EFI stub */
        }
...

INIT_CALLS 매크로에는 early, 0~5, rootfs, 6, 7 레벨에 해당하는 함수들의 주소가 적재된다.

include/asm-generic/vmlinux.lds.h

#define INIT_CALLS                                                      \
                VMLINUX_SYMBOL(__initcall_start) = .;                   \
                KEEP(*(.initcallearly.init))                            \
                INIT_CALLS_LEVEL(0)                                     \
                INIT_CALLS_LEVEL(1)                                     \
                INIT_CALLS_LEVEL(2)                                     \
                INIT_CALLS_LEVEL(3)                                     \
                INIT_CALLS_LEVEL(4)                                     \
                INIT_CALLS_LEVEL(5)                                     \
                INIT_CALLS_LEVEL(rootfs)                                \
                INIT_CALLS_LEVEL(6)                                     \
                INIT_CALLS_LEVEL(7)                                     \
                VMLINUX_SYMBOL(__initcall_end) = .;

다음 매크로 함수에서 해당 레벨의 initcall 시작 심볼에 주소가 담기고, initcall 함수들 주소가 적재되는 섹션 위치를 알 수 있다.

include/asm-generic/vmlinux.lds.h

#define INIT_CALLS_LEVEL(level)                                         \
                VMLINUX_SYMBOL(__initcall##level##_start) = .;          \
                KEEP(*(.initcall##level##.init))                        \
                KEEP(*(.initcall##level##s.init))                       \

initcall 함수 등록

다음은 레벨 0보다 먼저 시작되어야 할 early 함수들이 컴파일 타임에 정적으로 등록하는 매크로 함수이다.

include/linux/init.h

/*
 * Early initcalls run before initializing SMP.
 *
 * Only for built-in code, not modules.
 */
#define early_initcall(fn)              __define_initcall(fn, early)

다음 매크로 함수는 컴파일된 호출 함수의 주소를 해당 레벨의 섹션 위치에 저장한다. (함수 포인터 하나를 저장한다)

include/linux/init.h

/*
 * initcalls are now grouped by functionality into separate
 * subsections. Ordering inside the subsections is determined
 * by link order. 
 * For backwards compatibility, initcall() puts the call in 
 * the device init subsection.
 *
 * The `id' arg to __define_initcall() is needed so that multiple initcalls
 * can point at the same handler without causing duplicate-symbol build errors.
 *
 * Initcalls are run by placing pointers in initcall sections that the
 * kernel iterates at runtime. The linker can do dead code / data elimination
 * and remove that completely, so the initcall sections have to be marked
 * as KEEP() in the linker script.
 */

#define __define_initcall(fn, id) \
        static initcall_t __initcall_##fn##id __used \
        __attribute__((__section__(".initcall" #id ".init"))) = fn;

다음 매크로 함수들은 initcall 함수들의 주소를 해당 레벨의 위치에 저장한다. (함수 포인터 하나를 저장한다)

include/linux/init.h

/*
 * A "pure" initcall has no dependencies on anything else, and purely
 * initializes variables that couldn't be statically initialized.
 *
 * This only exists for built-in code, not for modules.
 * Keep main.c:initcall_level_names[] in sync.
 */
#define pure_initcall(fn)               __define_initcall(fn, 0)

#define core_initcall(fn)               __define_initcall(fn, 1)
#define core_initcall_sync(fn)          __define_initcall(fn, 1s)
#define postcore_initcall(fn)           __define_initcall(fn, 2)
#define postcore_initcall_sync(fn)      __define_initcall(fn, 2s)
#define arch_initcall(fn)               __define_initcall(fn, 3)
#define arch_initcall_sync(fn)          __define_initcall(fn, 3s)
#define subsys_initcall(fn)             __define_initcall(fn, 4)
#define subsys_initcall_sync(fn)        __define_initcall(fn, 4s)
#define fs_initcall(fn)                 __define_initcall(fn, 5)
#define fs_initcall_sync(fn)            __define_initcall(fn, 5s)
#define rootfs_initcall(fn)             __define_initcall(fn, rootfs)
#define device_initcall(fn)             __define_initcall(fn, 6)
#define device_initcall_sync(fn)        __define_initcall(fn, 6s)
#define late_initcall(fn)               __define_initcall(fn, 7)
#define late_initcall_sync(fn)          __define_initcall(fn, 7s)

console에 대한 initcall이 별도로 정의되고 저장되는 위치도 별도로 두었다.

include/linux/init.h

#define console_initcall(fn)                                    \
        static initcall_t __initcall_##fn                       \
        __used __section(.con_initcall.init) = fn

initcall 레벨별 주요 호출 함수

다음은 QEMU에서 arm64 커널을 동작시킬 때 호출되는 initcall들이다.

early 레벨: early_initcall()

[    0.049844] initcall cpu_suspend_init+0x0/0x4c returned 0 after 0 usecs
[    0.050052] initcall asids_init+0x0/0xd0 returned 0 after 0 usecs
[    0.050120] initcall xen_guest_init+0x0/0x2e4 returned 0 after 0 usecs
[    0.060595] initcall spawn_ksoftirqd+0x0/0x50 returned 0 after 7812 usecs
[    0.060665] initcall migration_init+0x0/0x4c returned 0 after 0 usecs
[    0.060711] initcall check_cpu_stall_init+0x0/0x2c returned 0 after 0 usecs
[    0.060787] initcall srcu_bootup_announce+0x0/0x40 returned 0 after 0 usecs
[    0.061902] initcall rcu_spawn_gp_kthread+0x0/0x12c returned 0 after 0 usecs
[    0.072857] initcall cpu_stop_init+0x0/0xd4 returned 0 after 7812 usecs
[    0.072966] initcall jump_label_init_module+0x0/0x1c returned 0 after 0 usecs
[    0.073171] initcall its_pci_msi_init+0x0/0xc4 returned 0 after 0 usecs
[    0.073286] initcall its_pmsi_init+0x0/0xa8 returned 0 after 0 usecs
[    0.073394] initcall renesas_soc_init+0x0/0x214 returned -19 after 0 usecs
[    0.073566] initcall rcar_sysc_pd_init+0x0/0x2f0 returned -19 after 0 usecs
[    0.073800] initcall tegra_init_fuse+0x0/0x18c returned 0 after 0 usecs
[    0.073928] initcall tegra_flowctrl_init+0x0/0xc8 returned 0 after 0 usecs
[    0.074271] initcall tegra_pmc_early_init+0x0/0x58c returned 0 after 0 usecs
[    0.075707] initcall rand_initialize+0x0/0x128 returned 0 after 0 usecs
[    0.075794] initcall arm_enable_runtime_services+0x0/0x1fc returned 0 after 0 usecs
[    0.075943] initcall dummy_timer_register+0x0/0x34 returned 0 after 0 usecs

0 레벨: pure_initcall()

<pre “>[ 0.190141] initcall ipc_ns_init+0x0/0x68 returned 0 after 0 usecs [ 0.190196] initcall init_mmap_min_addr+0x0/0x18 returned 0 after 0 usecs [ 0.190316] initcall init_cpufreq_transition_notifier_list+0x0/0x34 returned 0 after 0 usecs [ 0.190369] initcall jit_init+0x0/0x8 returned 0 after 0 usecs [ 0.192294] initcall net_ns_init+0x0/0x154 returned 0 after 3906 usecs

1 레벨: core_initcall()

[    0.192760] initcall fpsimd_init+0x0/0x80 returned 0 after 0 usecs
[    0.192834] initcall enable_mrs_emulation+0x0/0x24 returned 0 after 0 usecs
[    0.193145] initcall map_entry_trampoline+0x0/0x128 returned 0 after 0 usecs
[    0.193216] initcall cpu_hotplug_pm_sync_init+0x0/0x24 returned 0 after 0 usecs
[    0.193252] initcall alloc_frozen_cpus+0x0/0x8 returned 0 after 0 usecs
[    0.193811] initcall wq_sysfs_init+0x0/0x40 returned 0 after 0 usecs
[    0.194052] initcall ksysfs_init+0x0/0xc0 returned 0 after 0 usecs
[    0.194327] initcall pm_init+0x0/0x80 returned 0 after 0 usecs
[    0.194407] initcall pm_disk_init+0x0/0x24 returned 0 after 0 usecs
[    0.195198] initcall swsusp_header_init+0x0/0x40 returned 0 after 0 usecs
[    0.195239] initcall rcu_set_runtime_mode+0x0/0x14 returned 0 after 0 usecs
[    0.195364] initcall init_jiffies_clocksource+0x0/0x24 returned 0 after 0 usecs
[    0.195683] initcall futex_init+0x0/0xfc returned 0 after 0 usecs
[    0.195819] initcall cgroup_wq_init+0x0/0x40 returned 0 after 0 usecs
[    0.195967] initcall cgroup1_wq_init+0x0/0x40 returned 0 after 0 usecs
[    0.196044] initcall cpu_pm_init+0x0/0x20 returned 0 after 0 usecs
[    0.196439] initcall init_per_zone_wmark_min+0x0/0x8c returned 0 after 0 usecs
[    0.196484] initcall init_zero_pfn+0x0/0x28 returned 0 after 0 usecs
[    0.197700] initcall cma_init_reserved_areas+0x0/0x1c4 returned 0 after 0 usecs
[    0.197821] initcall fsnotify_init+0x0/0x54 returned 0 after 0 usecs
[    0.197966] initcall filelock_init+0x0/0xbc returned 0 after 0 usecs
[    0.198259] initcall init_script_binfmt+0x0/0x24 returned 0 after 0 usecs
[    0.198304] initcall init_elf_binfmt+0x0/0x24 returned 0 after 0 usecs
[    0.198344] initcall init_compat_elf_binfmt+0x0/0x24 returned 0 after 0 usecs
[    0.198470] initcall configfs_init+0x0/0xb8 returned 0 after 0 usecs
[    0.198551] initcall debugfs_init+0x0/0x78 returned 0 after 0 usecs
[    0.198684] initcall prandom_init+0x0/0x154 returned 0 after 0 usecs
[    0.200146] initcall pinctrl_init+0x0/0xc0 returned 0 after 3906 usecs
[    0.200434] initcall gpiolib_dev_init+0x0/0xf4 returned 0 after 0 usecs
[    0.201001] initcall hi3516cv300_crg_init+0x0/0x20 returned 0 after 0 usecs
[    0.201145] initcall hi3519_clk_init+0x0/0x20 returned 0 after 0 usecs
[    0.201288] initcall hi3660_clk_init+0x0/0x20 returned 0 after 0 usecs
[    0.201408] initcall hi3798cv200_crg_init+0x0/0x20 returned 0 after 0 usecs
[    0.201534] initcall gcc_ipq8074_init+0x0/0x20 returned 0 after 0 usecs
[    0.201667] initcall gcc_msm8916_init+0x0/0x20 returned 0 after 0 usecs
[    0.201895] initcall gcc_msm8994_init+0x0/0x20 returned 0 after 0 usecs
[    0.202030] initcall gcc_msm8996_init+0x0/0x20 returned 0 after 0 usecs
[    0.202150] initcall rpm_smd_clk_init+0x0/0x20 returned 0 after 0 usecs
[    0.202295] initcall vexpress_osc_init+0x0/0x20 returned 0 after 0 usecs
[    0.202416] initcall zx_clk_init+0x0/0x20 returned 0 after 0 usecs
[    0.202539] initcall fsl_guts_init+0x0/0x20 returned 0 after 0 usecs
[    0.202866] initcall exynos4_pm_init_power_domain+0x0/0x2fc returned 0 after 0 usecs
[    0.203028] initcall virtio_init+0x0/0x30 returned 0 after 0 usecs
[    0.208022] initcall regulator_init+0x0/0xb0 returned 0 after 3906 usecs
[    0.208149] initcall iommu_init+0x0/0x3c returned 0 after 0 usecs
[    0.208221] initcall opp_debug_init+0x0/0x50 returned 0 after 0 usecs
[    0.208275] initcall dma_init_reserved_memory+0x0/0x60 returned -12 after 0 usecs
[    0.208417] initcall soc_bus_register+0x0/0x50 returned 0 after 0 usecs
[    0.208460] initcall register_cpufreq_notifier+0x0/0x54 returned -22 after 0 usecs
[    0.208668] initcall vexpress_syscfg_init+0x0/0x20 returned 0 after 0 usecs
[    0.208871] initcall vexpress_sysreg_init+0x0/0x70 returned 0 after 0 usecs
[    0.208958] initcall cpufreq_core_init+0x0/0x68 returned 0 after 0 usecs
[    0.209296] initcall cpuidle_init+0x0/0x54 returned 0 after 3906 usecs
[    0.209354] initcall capsule_reboot_register+0x0/0x20 returned 0 after 0 usecs
[    0.209450] initcall arm_dmi_init+0x0/0x28 returned 0 after 0 usecs
[    0.209628] initcall tegra_bpmp_init+0x0/0x20 returned 0 after 0 usecs
[    0.209779] initcall hi6220_mbox_init+0x0/0x20 returned 0 after 0 usecs
[    0.209914] initcall tegra_hsp_init+0x0/0x20 returned 0 after 0 usecs
[    0.213400] initcall sock_init+0x0/0xc0 returned 0 after 0 usecs
[    0.213537] initcall net_inuse_init+0x0/0x30 returned 0 after 0 usecs
[    0.213591] initcall net_defaults_init+0x0/0x30 returned 0 after 0 usecs
[    0.213715] initcall init_default_flow_dissectors+0x0/0x54 returned 0 after 0 usecs
[    0.229426] initcall netlink_proto_init+0x0/0x174 returned 0 after 15625 usecs

1 레벨: early_initcall_sync()

core_s
[    0.229483] initcall __gnttab_init+0x0/0x40 returned -19 after 0 usecs

2 레벨: postcore_initcall()

postcore
[    0.230197] initcall debug_monitors_init+0x0/0x38 returned 0 after 0 usecs
[    0.230610] initcall irq_sysfs_init+0x0/0xb4 returned 0 after 0 usecs
[    0.230880] initcall bdi_class_init+0x0/0x74 returned 0 after 0 usecs
[    0.230961] initcall mm_sysfs_init+0x0/0x3c returned 0 after 0 usecs
[    0.231166] initcall irqc_init+0x0/0x20 returned 0 after 0 usecs
[    0.231314] initcall vexpress_config_init+0x0/0xec returned 0 after 0 usecs
[    0.231499] initcall rockchip_pinctrl_drv_register+0x0/0x20 returned 0 after 0 usecs
[    0.231655] initcall samsung_pinctrl_drv_register+0x0/0x20 returned 0 after 0 usecs
[    0.231796] initcall sh_pfc_init+0x0/0x20 returned 0 after 0 usecs
[    0.231983] initcall gpiolib_sysfs_init+0x0/0xbc returned 0 after 0 usecs
[    0.232120] initcall tegra_gpio_init+0x0/0x20 returned 0 after 0 usecs
[    0.232222] initcall pcibus_class_init+0x0/0x24 returned 0 after 0 usecs
[    0.232382] initcall pci_driver_init+0x0/0x1c returned 0 after 0 usecs
[    0.232868] initcall backlight_class_init+0x0/0xc0 returned 0 after 0 usecs
[    0.233041] initcall amba_init+0x0/0x1c returned 0 after 0 usecs
[    0.233340] initcall rockchip_grf_init+0x0/0xf8 returned -19 after 0 usecs
[    0.233859] initcall rockchip_pm_domain_drv_register+0x0/0x20 returned 0 after 3906 usecs
[    0.234031] initcall exynos_pmu_init+0x0/0x20 returned 0 after 0 usecs
[    0.234103] initcall xenbus_init+0x0/0x2e8 returned -19 after 0 usecs
[    0.234250] initcall hi6220_reset_init+0x0/0x20 returned 0 after 0 usecs
[    0.234383] initcall tty_class_init+0x0/0x54 returned 0 after 0 usecs
[    0.234848] initcall vtconsole_class_init+0x0/0xfc returned 0 after 0 usecs
[    0.235077] initcall serdev_init+0x0/0x2c returned 0 after 0 usecs
[    0.235173] initcall iommu_dev_init+0x0/0x24 returned 0 after 0 usecs
[    0.235304] initcall mipi_dsi_bus_init+0x0/0x1c returned 0 after 0 usecs
[    0.235389] initcall wakeup_sources_debugfs_init+0x0/0x34 returned 0 after 0 usecs
[    0.235634] initcall register_node_type+0x0/0x20 returned 0 after 0 usecs
[    0.235745] initcall regmap_initcall+0x0/0x18 returned 0 after 0 usecs
[    0.235935] initcall sram_init+0x0/0x20 returned 0 after 0 usecs
[    0.236071] initcall syscon_init+0x0/0x24 returned 0 after 0 usecs
[    0.236334] initcall spi_init+0x0/0xac returned 0 after 0 usecs
[    0.236476] initcall spmi_init+0x0/0x30 returned 0 after 0 usecs
[    0.237354] initcall i2c_init+0x0/0xf0 returned 0 after 0 usecs
[    0.239930] initcall init_menu+0x0/0x1c returned 0 after 3906 usecs
[    0.239996] initcall pcc_init+0x0/0x3dc returned -19 after 0 usecs
[    0.240204] initcall qcom_hwspinlock_init+0x0/0x20 returned 0 after 0 usecs
[    0.240377] initcall rpmsg_init+0x0/0x4c returned 0 after 0 usecs
[    0.240680] initcall kobject_uevent_init+0x0/0x20 returned 0 after 0 usecs

2 레벨: postcore_initcall_sync()

[    0.241128] initcall of_iommu_init+0x0/0x88 returned 0 after 0 usecs

3 레벨: arch_initcall()

[    0.241563] initcall debug_traps_init+0x0/0x54 returned 0 after 0 usecs
[    0.241706] initcall vdso_init+0x0/0x150 returned 0 after 0 usecs
[    0.245891] initcall alloc_vectors_page+0x0/0xb4 returned 0 after 3906 usecs
[    0.246968] initcall arch_hw_breakpoint_init+0x0/0xf8 returned 0 after 0 usecs
[    0.247140] initcall __iommu_dma_init+0x0/0x14 returned 0 after 0 usecs
[    0.259147] initcall arm64_dma_init+0x0/0x48 returned 0 after 11718 usecs
[    0.259212] initcall p2m_init+0x0/0x18 returned 0 after 0 usecs
[    0.259253] initcall xen_mm_init+0x0/0x94 returned 0 after 0 usecs
[    0.260103] initcall ns2_pinmux_init+0x0/0x20 returned 0 after 0 usecs
[    0.260459] initcall ipq8074_pinctrl_init+0x0/0x20 returned 0 after 0 usecs
[    0.261524] initcall msm8916_pinctrl_init+0x0/0x20 returned 0 after 3906 usecs
[    0.262042] initcall msm8994_pinctrl_init+0x0/0x20 returned 0 after 0 usecs
[    0.262422] initcall msm8996_pinctrl_init+0x0/0x20 returned 0 after 0 usecs
[    0.262996] initcall qdf2xxx_pinctrl_init+0x0/0x20 returned 0 after 0 usecs
[    0.263438] initcall mtk_pinctrl_init+0x0/0x20 returned 0 after 0 usecs
[    0.263553] initcall acpi_pci_init+0x0/0x80 returned 0 after 0 usecs
[    0.264249] initcall clk_mt6797_init+0x0/0x20 returned 0 after 0 usecs
[    0.264306] initcall tegra_clocks_apply_init_table+0x0/0x2c returned 0 after 0 usecs
[    0.264978] initcall dma_bus_init+0x0/0xf4 returned 0 after 0 usecs
[    0.265462] initcall dma_channel_table_init+0x0/0x108 returned 0 after 0 usecs
[    0.266509] initcall qcom_smd_rpm_init+0x0/0x24 returned 0 after 0 usecs
[    0.268196] initcall qcom_smem_init+0x0/0x20 returned 0 after 3906 usecs
[    0.268251] initcall setup_vcpu_hotplug_event+0x0/0x34 returned -19 after 0 usecs
[    0.268300] initcall register_xen_amba_notifier+0x0/0x5c returned 0 after 0 usecs
[    0.268343] initcall register_xen_platform_notifier+0x0/0x58 returned 0 after 0 usecs
[    0.268381] initcall register_xen_pci_notifier+0x0/0x4c returned 0 after 0 usecs
[    0.268908] initcall hi3660_reset_init+0x0/0x20 returned 0 after 0 usecs
[    0.269749] initcall pl011_init+0x0/0x54 returned 0 after 0 usecs
[    0.271510] initcall mvebu_uart_init+0x0/0x60 returned 0 after 3906 usecs
[    0.271566] initcall dmi_id_init+0x0/0x334 returned -19 after 0 usecs

3 레벨: arch_initcall_sync()

[    0.272148] initcall iproc_gpio_init+0x0/0x20 returned 0 after 0 usecs
[    0.374345] initcall of_platform_default_populate_init+0x0/0x78 returned 0 after 85937 usecs

4 레벨: subsys_initcall()

[    0.379095] initcall topology_init+0x0/0xf4 returned 0 after 3906 usecs
[    0.379245] initcall uid_cache_init+0x0/0xa8 returned 0 after 0 usecs
[    0.547249] initcall param_sysfs_init+0x0/0x1b4 returned 0 after 140625 usecs
[    0.547505] initcall user_namespace_sysctl_init+0x0/0x4c returned 0 after 0 usecs
[    0.554072] initcall pm_sysrq_init+0x0/0x24 returned 0 after 3906 usecs
[    0.554137] initcall create_proc_profile+0x0/0xe8 returned 0 after 0 usecs
[    0.554859] initcall crash_save_vmcoreinfo_init+0x0/0x52c returned 0 after 0 usecs
[    0.554941] initcall crash_notes_memory_init+0x0/0x3c returned 0 after 0 usecs
[    0.554978] initcall cgroup_namespaces_init+0x0/0x8 returned 0 after 0 usecs
[    0.555111] initcall user_namespaces_init+0x0/0x38 returned 0 after 0 usecs
[    0.568422] initcall oom_init+0x0/0x6c returned 0 after 11718 usecs
[    0.570858] initcall default_bdi_init+0x0/0xa4 returned 0 after 0 usecs
[    0.570911] initcall percpu_enable_async+0x0/0x14 returned 0 after 0 usecs
[    0.571306] initcall kcompactd_init+0x0/0xbc returned 0 after 0 usecs
[    0.571350] initcall init_reserve_notifier+0x0/0x8 returned 0 after 0 usecs
[    0.571413] initcall init_admin_reserve+0x0/0x30 returned 0 after 0 usecs
[    0.571459] initcall init_user_reserve+0x0/0x30 returned 0 after 0 usecs
[    0.571562] initcall swap_init_sysfs+0x0/0x78 returned 0 after 0 usecs
[    0.572016] initcall swapfile_init+0x0/0xd8 returned 0 after 3906 usecs
[    0.573415] initcall hugetlb_init+0x0/0x47c returned 0 after 0 usecs
[    0.574489] initcall ksm_init+0x0/0x194 returned 0 after 0 usecs
[    0.575332] initcall hugepage_init+0x0/0x158 returned 0 after 0 usecs
[    0.575419] initcall mem_cgroup_swap_init+0x0/0x7c returned 0 after 0 usecs
[    0.575725] initcall mem_cgroup_init+0x0/0x190 returned 0 after 0 usecs
[    0.576955] initcall crypto_wq_init+0x0/0x44 returned 0 after 3906 usecs
[    0.577026] initcall cryptomgr_init+0x0/0x1c returned 0 after 0 usecs
[    0.577257] initcall cryptd_init+0x0/0xe4 returned 0 after 0 usecs
[    0.578228] initcall init_bio+0x0/0xec returned 0 after 0 usecs
[    0.578280] initcall blk_settings_init+0x0/0x30 returned 0 after 0 usecs
[    0.578363] initcall blk_ioc_init+0x0/0x38 returned 0 after 0 usecs
[    0.578458] initcall blk_softirq_init+0x0/0xa4 returned 0 after 0 usecs
[    0.578503] initcall blk_mq_init+0x0/0x38 returned 0 after 0 usecs
[    0.582086] initcall genhd_device_init+0x0/0x94 returned 0 after 3906 usecs
[    0.582163] initcall gpiolib_debugfs_init+0x0/0x38 returned 0 after 0 usecs
[    0.582368] initcall pca953x_init+0x0/0x20 returned 0 after 0 usecs
[    0.582445] initcall pwm_debugfs_init+0x0/0x38 returned 0 after 0 usecs
[    0.582551] initcall pwm_sysfs_init+0x0/0x28 returned 0 after 0 usecs
[    0.582644] initcall pci_slot_init+0x0/0x58 returned 0 after 0 usecs
[    0.583008] initcall xgene_pcie_msi_init+0x0/0x20 returned 0 after 0 usecs
[    0.583917] initcall fbmem_init+0x0/0x100 returned 0 after 0 usecs
[    0.584243] initcall acpi_init+0x0/0x334 returned -19 after 0 usecs
[    0.584436] initcall pnp_init+0x0/0x1c returned 0 after 0 usecs
[    0.584679] initcall s2mps11_clk_init+0x0/0x20 returned 0 after 0 usecs
[    0.584993] initcall hi6220_stub_clk_init+0x0/0x20 returned 0 after 0 usecs
[    0.586440] initcall cpg_mssr_init+0x0/0x28 returned -19 after 3906 usecs
[    0.586493] initcall balloon_init+0x0/0xd8 returned -19 after 0 usecs
[    0.586547] initcall xen_setup_shutdown_event+0x0/0x48 returned -19 after 0 usecs
[    0.586756] initcall xenbus_probe_backend_init+0x0/0x3c returned 0 after 0 usecs
[    0.586908] initcall xenbus_probe_frontend_init+0x0/0x3c returned 0 after 0 usecs
[    0.587323] initcall regulator_fixed_voltage_init+0x0/0x20 returned 0 after 0 usecs
[    0.587637] initcall gpio_regulator_init+0x0/0x20 returned 0 after 0 usecs
[    0.588079] initcall rpm_reg_init+0x0/0x20 returned 0 after 0 usecs
[    0.593126] initcall misc_init+0x0/0xe4 returned 0 after 3906 usecs
[    0.593282] initcall rk_iommu_init+0x0/0x9c returned 0 after 0 usecs
[    0.594535] initcall vga_arb_device_init+0x0/0xfc returned 0 after 0 usecs
[    0.594650] initcall register_cpu_capacity_sysctl+0x0/0x98 returned 0 after 0 usecs
[    0.595211] initcall sec_pmic_init+0x0/0x20 returned 0 after 0 usecs
[    0.595352] initcall dma_buf_init+0x0/0x98 returned 0 after 0 usecs
[    0.602516] initcall init_scsi+0x0/0x8c returned 0 after 7812 usecs
[    0.609111] initcall ata_init+0x0/0x338 returned 0 after 3906 usecs
[    0.609302] initcall pl022_init+0x0/0x1c returned 0 after 0 usecs
[    0.609785] initcall phy_init+0x0/0x78 returned 0 after 0 usecs
[    0.609921] initcall hnae_init+0x0/0x40 returned 0 after 0 usecs
[    0.613279] initcall usb_init+0x0/0x180 returned 0 after 3906 usecs
[    0.613813] initcall usb_phy_generic_init+0x0/0x20 returned 0 after 0 usecs
[    0.614019] initcall usb_udc_init+0x0/0x64 returned 0 after 0 usecs
[    0.614263] initcall serio_init+0x0/0x44 returned 0 after 0 usecs
[    0.615323] initcall input_init+0x0/0x128 returned 0 after 0 usecs
[    0.615478] initcall rtc_init+0x0/0x68 returned 0 after 0 usecs
[    0.616360] initcall dw_i2c_init_driver+0x0/0x20 returned 0 after 3906 usecs
[    0.617258] initcall i2c_adap_imx_init+0x0/0x20 returned 0 after 0 usecs
[    0.617753] initcall i2c_adap_pxa_init+0x0/0x20 returned 0 after 0 usecs
[    0.618487] initcall sh_mobile_i2c_adap_init+0x0/0x20 returned 0 after 0 usecs
[    0.619106] initcall tegra_i2c_init_driver+0x0/0x20 returned 0 after 0 usecs
[    0.635798] initcall pps_init+0x0/0xd0 returned 0 after 15625 usecs
[    0.636361] initcall ptp_init+0x0/0xb0 returned 0 after 0 usecs
[    0.636891] initcall brcmstb_reboot_init+0x0/0x28 returned -19 after 0 usecs
[    0.637068] initcall power_supply_class_init+0x0/0x60 returned 0 after 0 usecs
[    0.637178] initcall hwmon_init+0x0/0x48 returned 0 after 0 usecs
[    0.640240] initcall edac_init+0x0/0x90 returned 0 after 3906 usecs
[    0.640770] initcall mmc_init+0x0/0x4c returned 0 after 0 usecs
[    0.640921] initcall leds_init+0x0/0x5c returned 0 after 0 usecs
[    0.641354] initcall dmi_init+0x0/0x11c returned -61 after 0 usecs
[    0.641474] initcall qcom_scm_init+0x0/0x7c returned -19 after 0 usecs
[    0.641544] initcall efisubsys_init+0x0/0x26c returned 0 after 0 usecs
[    0.641590] initcall register_gop_device+0x0/0x64 returned 0 after 0 usecs
[    0.642107] initcall qcom_smd_init+0x0/0x24 returned 0 after 0 usecs
[    0.642548] initcall iio_init+0x0/0xac returned 0 after 0 usecs
[    0.642650] initcall arm_pmu_hp_init+0x0/0x60 returned 0 after 0 usecs
[    0.642717] initcall arm_pmu_acpi_init+0x0/0x1e8 returned 0 after 0 usecs
[    0.642957] initcall ras_init+0x0/0x18 returned 0 after 0 usecs
[    0.643260] initcall nvmem_init+0x0/0x20 returned 0 after 0 usecs
[    0.645159] initcall tee_init+0x0/0xac returned 0 after 0 usecs
[    0.646417] initcall init_soundcore+0x0/0x58 returned 0 after 0 usecs
[    0.648290] initcall alsa_sound_init+0x0/0xb8 returned 0 after 0 usecs
[    0.653378] initcall proto_init+0x0/0x1c returned 0 after 3906 usecs
[    0.659593] initcall net_dev_init+0x0/0x1f4 returned 0 after 7812 usecs
[    0.659668] initcall neigh_init+0x0/0xa0 returned 0 after 0 usecs
[    0.659724] initcall fib_notifier_init+0x0/0x1c returned 0 after 0 usecs
[    0.660292] initcall genl_init+0x0/0x4c returned 0 after 0 usecs
[    0.660368] initcall ipv4_netfilter_init+0x0/0x1c returned 0 after 0 usecs

4 레벨: subsys_initcall_sync()

[    0.663834] initcall watchdog_init+0x0/0x90 returned 0 after 3906 usecs

5 레벨: fs_initcall()

[    0.664462] initcall create_debug_debugfs_entry+0x0/0x30 returned 0 after 0 usecs
[    0.664502] initcall dma_debug_do_init+0x0/0x8 returned 0 after 0 usecs
[    0.666317] initcall clocksource_done_booting+0x0/0x58 returned 0 after 1403 usecs
[    0.668279] initcall init_pipe_fs+0x0/0x60 returned 0 after 1855 usecs
[    0.668480] initcall cgroup_writeback_init+0x0/0x44 returned 0 after 142 usecs
[    0.668640] initcall inotify_user_setup+0x0/0x5c returned 0 after 106 usecs
[    0.668859] initcall eventpoll_init+0x0/0xd4 returned 0 after 164 usecs
[    0.670573] initcall anon_inode_init+0x0/0x6c returned 0 after 1616 usecs
[    0.670691] initcall proc_locks_init+0x0/0x34 returned 0 after 67 usecs
[    0.671856] initcall dquot_init+0x0/0x168 returned 0 after 1091 usecs
[    0.671952] initcall proc_cmdline_init+0x0/0x30 returned 0 after 54 usecs
[    0.672014] initcall proc_consoles_init+0x0/0x30 returned 0 after 23 usecs
[    0.672079] initcall proc_cpuinfo_init+0x0/0x30 returned 0 after 25 usecs
[    0.672162] initcall proc_devices_init+0x0/0x30 returned 0 after 25 usecs
[    0.672222] initcall proc_interrupts_init+0x0/0x30 returned 0 after 22 usecs
[    0.672284] initcall proc_loadavg_init+0x0/0x30 returned 0 after 23 usecs
[    0.672371] initcall proc_meminfo_init+0x0/0x30 returned 0 after 47 usecs
[    0.672436] initcall proc_stat_init+0x0/0x30 returned 0 after 26 usecs
[    0.672499] initcall proc_uptime_init+0x0/0x30 returned 0 after 22 usecs
[    0.672563] initcall proc_version_init+0x0/0x30 returned 0 after 24 usecs
[    0.672623] initcall proc_softirqs_init+0x0/0x30 returned 0 after 21 usecs
[    0.672724] initcall vmcore_init+0x0/0x580 returned 0 after 60 usecs
[    0.672790] initcall proc_kmsg_init+0x0/0x30 returned 0 after 26 usecs
[    0.672876] initcall proc_page_init+0x0/0x6c returned 0 after 45 usecs
[    0.672922] initcall init_ramfs_fs+0x0/0x3c returned 0 after 9 usecs
[    0.674538] initcall init_hugetlbfs_fs+0x0/0x158 returned 0 after 1522 usecs
[    0.674614] initcall blk_scsi_ioctl_init+0x0/0xa4 returned 0 after 25 usecs
[    0.674675] initcall acpi_event_init+0x0/0x44 returned 0 after 17 usecs
[    0.674947] initcall pnp_system_init+0x0/0x1c returned 0 after 222 usecs
[    0.675284] initcall pnpacpi_init+0x0/0x8c returned 0 after 288 usecs
[    0.742028] initcall chr_dev_init+0x0/0xcc returned 0 after 65106 usecs
[    0.742135] initcall firmware_class_init+0x0/0xb8 returned 0 after 51 usecs
[    0.744481] initcall thermal_init+0x0/0xec returned 0 after 2218 usecs
[    0.744617] initcall cpufreq_gov_performance_init+0x0/0x1c returned 0 after 72 usecs
[    0.744849] initcall sysctl_core_init+0x0/0x40 returned 0 after 184 usecs
[    0.744974] initcall eth_offload_init+0x0/0x20 returned 0 after 68 usecs
[    0.776668] initcall inet_init+0x0/0x260 returned 0 after 30887 usecs
[    0.776794] initcall ipv4_offload_init+0x0/0x80 returned 0 after 72 usecs
[    0.778001] initcall af_unix_init+0x0/0x64 returned 0 after 1119 usecs
[    0.778153] initcall ipv6_offload_init+0x0/0x84 returned 0 after 104 usecs
[    0.787329] initcall init_sunrpc+0x0/0x84 returned 0 after 8894 usecs

5 레벨: fs_initcall_sync()

[    0.787473] initcall pci_apply_final_quirks+0x0/0x140 returned 0 after 94 usecs
[    0.787601] initcall acpi_reserve_resources+0x0/0xfc returned 0 after 85 usecs

rootfs 레벨: rootfs_initcall_sync()

[    0.790338] initcall populate_rootfs+0x0/0x134 returned 0 after 2594 usecs

__ 레벨: early_initcall_sync()

[    0.790986] initcall register_kernel_offset_dumper+0x0/0x28 returned 0 after 107 usecs

6 레벨: device_initcall_sync() 또는 module_

[    0.791836] initcall cpuinfo_regs_init+0x0/0xc4 returned 0 after 780 usecs
[    0.791913] initcall register_cpu_hwcaps_dumper+0x0/0x28 returned 0 after 21 usecs
[    0.796165] initcall armv8_pmu_driver_init+0x0/0x3c returned 0 after 4047 usecs
[    0.796243] initcall register_mem_limit_dumper+0x0/0x2c returned 0 after 16 usecs
[    0.796701] initcall arm_init+0x0/0x28 returned -19 after 387 usecs
[    0.799885] initcall cpu_feature_match_SHA1_init+0x0/0x30 returned 0 after 3021 usecs
[    0.801951] initcall cpu_feature_match_SHA2_init+0x0/0x34 returned 0 after 1894 usecs
[    0.803528] initcall ghash_ce_mod_init+0x0/0x98 returned 0 after 1448 usecs
[    0.804428] initcall cpu_feature_match_AES_init+0x0/0x30 returned 0 after 797 usecs
[    0.804948] initcall aes_mod_init+0x0/0x30 returned 0 after 442 usecs
[    0.816877] initcall cpu_feature_match_AES_init+0x0/0xcc returned 0 after 10510 usecs
[    0.819621] initcall sha256_mod_init+0x0/0x70 returned 0 after 2593 usecs
[    0.820286] initcall aes_init+0x0/0x1c returned 0 after 586 usecs
[    0.820537] initcall proc_execdomains_init+0x0/0x30 returned 0 after 196 usecs
[    0.820779] initcall cpuhp_sysfs_init+0x0/0x9c returned 0 after 191 usecs
[    0.820864] initcall ioresources_init+0x0/0x54 returned 0 after 41 usecs
[    0.821957] initcall snapshot_device_init+0x0/0x1c returned 0 after 1018 usecs
[    0.822012] initcall irq_gc_init_ops+0x0/0x24 returned 0 after 13 usecs
[    0.822104] initcall irq_debugfs_init+0x0/0x40 returned 0 after 53 usecs
[    0.822148] initcall irq_pm_init_ops+0x0/0x20 returned 0 after 10 usecs
[    0.823233] initcall irq_debugfs_init+0x0/0xa4 returned 0 after 1006 usecs
[    0.823294] initcall timekeeping_init_ops+0x0/0x20 returned 0 after 16 usecs
[    0.824201] initcall init_clocksource_sysfs+0x0/0x78 returned 0 after 803 usecs
[    0.824837] initcall init_timer_list_procfs+0x0/0x38 returned 0 after 545 usecs
[    0.830739] initcall alarmtimer_init+0x0/0x104 returned 0 after 5651 usecs
[    0.830889] initcall init_posix_timers+0x0/0x38 returned 0 after 91 usecs
[    0.838299] initcall clockevents_init_sysfs+0x0/0x108 returned 0 after 7163 usecs
[    0.838368] initcall sched_clock_syscore_init+0x0/0x24 returned 0 after 15 usecs
[    0.838855] initcall proc_modules_init+0x0/0x30 returned 0 after 435 usecs
[    0.839191] initcall kallsyms_init+0x0/0x30 returned 0 after 287 usecs
[    0.839360] initcall pid_namespaces_init+0x0/0x38 returned 0 after 124 usecs
[    0.839717] initcall ikconfig_init+0x0/0x44 returned 0 after 308 usecs
[    0.842610] initcall audit_init+0x0/0x158 returned 0 after 2762 usecs
[    0.842769] initcall audit_watch_init+0x0/0x40 returned 0 after 99 usecs
[    0.842826] initcall audit_fsnotify_init+0x0/0x40 returned 0 after 19 usecs
[    0.842919] initcall audit_tree_init+0x0/0x68 returned 0 after 53 usecs
[    0.843048] initcall seccomp_sysctl_init+0x0/0x38 returned 0 after 88 usecs
[    0.843123] initcall utsname_sysctl_init+0x0/0x20 returned 0 after 36 usecs
[    0.847383] initcall perf_event_sysfs_init+0x0/0xb8 returned 0 after 4039 usecs
[    0.848077] initcall kswapd_init+0x0/0xac returned 0 after 587 usecs
[    0.848410] initcall extfrag_debug_init+0x0/0x90 returned 0 after 253 usecs
[    0.848515] initcall mm_compute_batch_init+0x0/0x60 returned 0 after 44 usecs
[    0.849579] initcall slab_proc_init+0x0/0x30 returned 0 after 657 usecs
[    0.851874] initcall workingset_init+0x0/0xa8 returned 0 after 673 usecs
[    0.852271] initcall proc_vmalloc_init+0x0/0x30 returned 0 after 342 usecs
[    0.852531] initcall memblock_init_debugfs+0x0/0x8c returned 0 after 199 usecs
[    0.852602] initcall procswaps_init+0x0/0x34 returned 0 after 27 usecs
[    0.905566] initcall slab_sysfs_init+0x0/0x124 returned 0 after 51089 usecs
[    0.907179] initcall fcntl_init+0x0/0x38 returned 0 after 106 usecs
[    0.907569] initcall proc_filesystems_init+0x0/0x30 returned 0 after 338 usecs
[    0.907661] initcall start_dirtytime_writeback+0x0/0x3c returned 0 after 52 usecs
[    0.907835] initcall blkdev_init+0x0/0x38 returned 0 after 130 usecs
[    0.908349] initcall dio_init+0x0/0x38 returned 0 after 455 usecs
[    0.908758] initcall dnotify_init+0x0/0x88 returned 0 after 351 usecs
[    0.908889] initcall fanotify_user_setup+0x0/0x84 returned 0 after 87 usecs
[    0.909175] initcall aio_setup+0x0/0x94 returned 0 after 235 usecs
[    0.915272] initcall init_sys32_ioctl+0x0/0x34 returned 0 after 5885 usecs
[    0.915870] initcall mbcache_init+0x0/0x44 returned 0 after 521 usecs
[    0.915961] initcall init_grace+0x0/0x1c returned 0 after 47 usecs
[    0.916322] initcall init_devpts_fs+0x0/0x3c returned 0 after 313 usecs
[    0.919777] initcall ext4_init_fs+0x0/0x160 returned 0 after 3307 usecs
[    0.920333] initcall init_ext2_fs+0x0/0x78 returned 0 after 481 usecs
[    0.928362] initcall journal_init+0x0/0x110 returned 0 after 7765 usecs
[    0.930268] initcall init_squashfs_fs+0x0/0x88 returned 0 after 1768 usecs
[    0.932008] initcall init_fat_fs+0x0/0x5c returned 0 after 1628 usecs
[    0.932398] initcall init_vfat_fs+0x0/0x1c returned 0 after 327 usecs
[    0.938506] initcall init_nfs_fs+0x0/0x150 returned 0 after 5898 usecs
[    0.938626] initcall init_nfs_v2+0x0/0x20 returned 0 after 44 usecs
[    0.938668] initcall init_nfs_v3+0x0/0x20 returned 0 after 9 usecs
[    0.940279] initcall init_nfs_v4+0x0/0x48 returned 0 after 1532 usecs
[    0.940758] initcall nfs4filelayout_init+0x0/0x34 returned 0 after 428 usecs
[    0.943165] initcall init_nlm+0x0/0x88 returned 0 after 2254 usecs
[    0.943361] initcall init_nls_cp437+0x0/0x20 returned 0 after 121 usecs
[    0.943542] initcall init_nls_iso8859_1+0x0/0x20 returned 0 after 13 usecs
[    0.952865] initcall init_cifs+0x0/0x350 returned 0 after 9029 usecs
[    0.954912] initcall init_autofs4_fs+0x0/0x38 returned 0 after 1327 usecs
[    0.955893] initcall init_v9fs+0x0/0xfc returned 0 after 902 usecs
[    0.956240] initcall init_pstore_fs+0x0/0x64 returned 0 after 292 usecs
[    0.956286] initcall efivarfs_init+0x0/0x44 returned -19 after 8 usecs
[    0.959594] initcall ipc_init+0x0/0x64 returned 0 after 3154 usecs
[    0.959729] initcall ipc_sysctl_init+0x0/0x20 returned 0 after 75 usecs
[    0.961814] initcall init_mqueue_fs+0x0/0x104 returned 0 after 1930 usecs
[    0.964280] initcall key_proc_init+0x0/0x74 returned 0 after 2290 usecs
[    0.964574] initcall crypto_algapi_init+0x0/0x18 returned 0 after 215 usecs
[    0.964657] initcall seqiv_module_init+0x0/0x1c returned 0 after 43 usecs
[    0.964709] initcall echainiv_module_init+0x0/0x1c returned 0 after 15 usecs
[    0.964755] initcall crypto_cmac_module_init+0x0/0x1c returned 0 after 10 usecs
[    0.964799] initcall hmac_module_init+0x0/0x1c returned 0 after 10 usecs
[    0.967749] initcall crypto_null_mod_init+0x0/0x58 returned 0 after 2805 usecs
[    0.968429] initcall md4_mod_init+0x0/0x1c returned 0 after 576 usecs
[    0.970118] initcall md5_mod_init+0x0/0x1c returned 0 after 1568 usecs
[    0.971357] initcall sha1_generic_mod_init+0x0/0x1c returned 0 after 1123 usecs
[    0.973454] initcall sha256_generic_mod_init+0x0/0x20 returned 0 after 1965 usecs
[    0.973525] initcall crypto_ecb_module_init+0x0/0x1c returned 0 after 18 usecs
[    0.973593] initcall crypto_ctr_module_init+0x0/0x58 returned 0 after 30 usecs
[    0.973698] initcall crypto_ccm_module_init+0x0/0x90 returned 0 after 66 usecs
[    0.974890] initcall des_generic_mod_init+0x0/0x20 returned 0 after 1114 usecs
[    0.975638] initcall aes_init+0x0/0x1c returned 0 after 632 usecs
[    0.976787] initcall arc4_init+0x0/0x20 returned 0 after 1026 usecs
[    0.979462] initcall crc32c_mod_init+0x0/0x1c returned 0 after 2527 usecs
[    0.980201] initcall crct10dif_mod_init+0x0/0x1c returned 0 after 657 usecs
[    0.980644] initcall prng_mod_init+0x0/0x20 returned 0 after 379 usecs
[    0.988584] initcall drbg_init+0x0/0x1dc returned 0 after 7681 usecs
[    0.991197] initcall jent_mod_init+0x0/0x3c returned 0 after 2484 usecs
[    0.991501] initcall proc_genhd_init+0x0/0x54 returned 0 after 204 usecs
[    0.992870] initcall bsg_init+0x0/0x150 returned 0 after 1269 usecs
[    0.994240] initcall noop_init+0x0/0x1c returned 0 after 1282 usecs
[    0.995532] initcall cfq_init+0x0/0x74 returned 0 after 1209 usecs
[    0.995950] initcall deadline_init+0x0/0x1c returned 0 after 364 usecs
[    0.996254] initcall kyber_init+0x0/0x1c returned 0 after 256 usecs
[    0.996391] initcall crc_t10dif_mod_init+0x0/0x50 returned 0 after 94 usecs
[    0.998384] initcall percpu_counter_startup+0x0/0x6c returned 0 after 1855 usecs
[    0.998750] initcall audit_classes_init+0x0/0xb0 returned 0 after 233 usecs
[    0.999272] initcall sg_pool_init+0x0/0x108 returned 0 after 432 usecs
[    0.999858] initcall mbigen_platform_driver_init+0x0/0x20 returned 0 after 506 usecs
[    1.000271] initcall mvebu_gicp_driver_init+0x0/0x20 returned 0 after 354 usecs
[    1.000592] initcall mvebu_icu_driver_init+0x0/0x20 returned 0 after 268 usecs
[    1.001282] initcall mvebu_pic_driver_init+0x0/0x20 returned 0 after 291 usecs
[    1.003670] initcall ls_scfg_msi_driver_init+0x0/0x24 returned 0 after 1257 usecs
[    1.004119] initcall qcom_irq_combiner_probe_init+0x0/0x20 returned 0 after 358 usecs
[    1.005098] initcall uniphier_aidet_driver_init+0x0/0x20 returned 0 after 884 usecs
[    1.007038] initcall brcm_gisb_driver_init+0x0/0x28 returned -19 after 1802 usecs
[    1.007642] initcall qcom_ebi2_driver_init+0x0/0x20 returned 0 after 520 usecs
[    1.008102] initcall sunxi_rsb_init+0x0/0x54 returned 0 after 402 usecs
[    1.008419] initcall uniphier_system_bus_driver_init+0x0/0x20 returned 0 after 263 usecs
[    1.008555] initcall phy_core_init+0x0/0x68 returned 0 after 90 usecs
[    1.008955] initcall xgene_phy_driver_init+0x0/0x20 returned 0 after 329 usecs
[    1.015040] initcall sun4i_usb_phy_driver_init+0x0/0x20 returned 0 after 5828 usecs
[    1.015665] initcall phy_meson8b_usb2_driver_init+0x0/0x20 returned 0 after 546 usecs
[    1.016212] initcall phy_meson_gxl_usb2_driver_init+0x0/0x20 returned 0 after 479 usecs
[    1.016751] initcall rcar_gen3_phy_usb2_driver_init+0x0/0x20 returned 0 after 412 usecs
[    1.017076] initcall rockchip_emmc_driver_init+0x0/0x20 returned 0 after 271 usecs
[    1.017512] initcall rockchip_usb2phy_driver_init+0x0/0x20 returned 0 after 376 usecs
[    1.028836] initcall tegra_xusb_padctl_driver_init+0x0/0x24 returned 0 after 10990 usecs
[    1.029373] initcall mdio_module_init+0x0/0x1c returned 0 after 439 usecs
[    1.029720] initcall ns2_drd_phy_driver_init+0x0/0x20 returned 0 after 290 usecs
[    1.030199] initcall brcm_sata_phy_driver_init+0x0/0x20 returned 0 after 420 usecs
[    1.030585] initcall hi6220_phy_driver_init+0x0/0x20 returned 0 after 329 usecs
[    1.030982] initcall exynos_dp_video_phy_driver_init+0x0/0x20 returned 0 after 339 usecs
[    1.031486] initcall exynos_mipi_video_phy_driver_init+0x0/0x20 returned 0 after 428 usecs
[    1.031820] initcall samsung_usb2_phy_driver_init+0x0/0x20 returned 0 after 263 usecs
[    1.032258] initcall exynos5_usb3drd_phy_init+0x0/0x20 returned 0 after 378 usecs
[    1.032497] initcall max77620_pinctrl_driver_init+0x0/0x20 returned 0 after 185 usecs
[    1.039774] initcall meson_pinctrl_driver_init+0x0/0x20 returned 0 after 7032 usecs
[    1.040447] initcall pcs_driver_init+0x0/0x20 returned 0 after 593 usecs
[    1.040800] initcall tegra124_pinctrl_driver_init+0x0/0x20 returned 0 after 294 usecs
[    1.045937] initcall tegra210_pinctrl_driver_init+0x0/0x20 returned 0 after 4945 usecs
[    1.046327] initcall bcm2835_pinctrl_driver_init+0x0/0x24 returned 0 after 319 usecs
[    1.046681] initcall armada_ap806_pinctrl_driver_init+0x0/0x20 returned 0 after 297 usecs
[    1.047099] initcall armada_cp110_pinctrl_driver_init+0x0/0x20 returned 0 after 360 usecs
[    1.047581] initcall armada_37xx_pinctrl_driver_init+0x0/0x28 returned -19 after 419 usecs
[    1.048072] initcall pmic_gpio_driver_init+0x0/0x20 returned 0 after 430 usecs
[    1.048606] initcall pmic_mpp_driver_init+0x0/0x20 returned 0 after 473 usecs
[    1.049113] initcall a64_pinctrl_driver_init+0x0/0x20 returned 0 after 433 usecs
[    1.056448] initcall sun50i_a64_r_pinctrl_driver_init+0x0/0x20 returned 0 after 642 usecs
[    1.056865] initcall sun8i_h3_r_pinctrl_driver_init+0x0/0x20 returned 0 after 347 usecs
[    1.058279] initcall sun50i_h5_pinctrl_driver_init+0x0/0x20 returned 0 after 1319 usecs
[    1.058663] initcall uniphier_ld11_pinctrl_driver_init+0x0/0x20 returned 0 after 323 usecs
[    1.058991] initcall uniphier_ld20_pinctrl_driver_init+0x0/0x20 returned 0 after 275 usecs
[    1.059321] initcall uniphier_pxs3_pinctrl_driver_init+0x0/0x20 returned 0 after 277 usecs
[    1.059823] initcall bgpio_driver_init+0x0/0x20 returned 0 after 443 usecs
[    1.060156] initcall brcmstb_gpio_driver_init+0x0/0x20 returned 0 after 277 usecs
[    1.060573] initcall dwapb_gpio_driver_init+0x0/0x20 returned 0 after 345 usecs
[    1.060855] initcall max77620_gpio_driver_init+0x0/0x20 returned 0 after 217 usecs
[    1.063868] initcall mvebu_gpio_driver_init+0x0/0x20 returned 0 after 2780 usecs
[    1.064304] initcall pl061_gpio_init+0x0/0x1c returned 0 after 319 usecs
[    1.067876] initcall gpio_rcar_device_driver_init+0x0/0x20 returned 0 after 3383 usecs
[    1.068416] initcall xgene_gpio_driver_init+0x0/0x20 returned 0 after 458 usecs
[    1.068747] initcall xgene_gpio_sb_driver_init+0x0/0x20 returned 0 after 275 usecs
[    1.069692] initcall iproc_pwmc_driver_init+0x0/0x20 returned 0 after 874 usecs
[    1.070125] initcall rockchip_pwm_driver_init+0x0/0x20 returned 0 after 375 usecs
[    1.070636] initcall pwm_samsung_driver_init+0x0/0x20 returned 0 after 453 usecs
[    1.071312] initcall pci_proc_init+0x0/0x88 returned 0 after 608 usecs
[    1.071759] initcall pcie_portdrv_init+0x0/0xa4 returned 0 after 390 usecs
[    1.072022] initcall aer_service_init+0x0/0x4c returned 0 after 213 usecs
[    1.072142] initcall pcie_pme_service_init+0x0/0x1c returned 0 after 76 usecs
[    1.072178] initcall pci_hotplug_init+0x0/0x8 returned 0 after 3 usecs
[    1.072337] initcall pcied_init+0x0/0x7c returned 0 after 116 usecs
[    1.072679] initcall advk_pcie_driver_init+0x0/0x20 returned 0 after 289 usecs
[    1.077727] initcall rcar_pcie_driver_init+0x0/0x20 returned 0 after 4858 usecs
[    1.115609] initcall gen_pci_driver_init+0x0/0x20 returned 0 after 36874 usecs
[    1.116331] initcall iproc_pcie_pltfm_driver_init+0x0/0x20 returned 0 after 623 usecs
[    1.116655] initcall xgene_pcie_driver_init+0x0/0x20 returned 0 after 265 usecs
[    1.117921] initcall ls_pcie_driver_init+0x0/0x28 returned -19 after 1183 usecs
[    1.118455] initcall qcom_pcie_driver_init+0x0/0x20 returned 0 after 469 usecs
[    1.118854] initcall armada8k_pcie_driver_init+0x0/0x20 returned 0 after 342 usecs
[    1.119235] initcall kirin_pcie_driver_init+0x0/0x20 returned 0 after 315 usecs
[    1.119634] initcall hisi_pcie_almost_ecam_driver_init+0x0/0x24 returned 0 after 340 usecs
[    1.119989] initcall hisi_pcie_driver_init+0x0/0x20 returned 0 after 299 usecs
[    1.120235] initcall amba_clcdfb_init+0x0/0x3c returned 0 after 196 usecs
[    1.120284] initcall xenfb_init+0x0/0x54 returned -19 after 11 usecs
[    1.120550] initcall ged_driver_init+0x0/0x20 returned 0 after 214 usecs
[    1.120622] initcall acpi_button_driver_init+0x0/0x20 returned -19 after 31 usecs
[    1.120868] initcall acpi_fan_driver_init+0x0/0x20 returned 0 after 196 usecs
[    1.121381] initcall acpi_processor_driver_init+0x0/0xb0 returned 0 after 451 usecs
[    1.128339] initcall acpi_thermal_init+0x0/0x94 returned -19 after 6683 usecs
[    1.128410] initcall acpi_hed_driver_init+0x0/0x20 returned -19 after 11 usecs
[    1.128503] initcall erst_init+0x0/0x2d4 returned 0 after 55 usecs
[    1.128566] initcall ghes_init+0x0/0x210 returned -19 after 27 usecs
[    1.128631] initcall gtdt_sbsa_gwdt_init+0x0/0xe4 returned 0 after 25 usecs
[    1.130444] initcall tegra_ahb_driver_init+0x0/0x20 returned 0 after 1707 usecs
[    1.131101] initcall of_fixed_factor_clk_driver_init+0x0/0x20 returned 0 after 550 usecs
[    1.131651] initcall of_fixed_clk_driver_init+0x0/0x20 returned 0 after 472 usecs
[    1.132171] initcall gpio_clk_driver_init+0x0/0x20 returned 0 after 452 usecs
[    1.132329] initcall cs2000_driver_init+0x0/0x20 returned 0 after 111 usecs
[    1.132686] initcall clk_pwm_driver_init+0x0/0x20 returned 0 after 305 usecs
[    1.132963] initcall rk808_clkout_driver_init+0x0/0x20 returned 0 after 223 usecs
[    1.133309] initcall scpi_clocks_driver_init+0x0/0x20 returned 0 after 291 usecs
[    1.133665] initcall bcm2835_clk_driver_init+0x0/0x20 returned 0 after 300 usecs
[    1.137105] initcall bcm2835_aux_clk_driver_init+0x0/0x20 returned 0 after 3254 usecs
[    1.140914] initcall sr_clk_driver_init+0x0/0x20 returned 0 after 3625 usecs
[    1.142305] initcall gxbb_driver_init+0x0/0x20 returned 0 after 1294 usecs
[    1.142706] initcall gxbb_aoclkc_driver_init+0x0/0x20 returned 0 after 338 usecs
[    1.143107] initcall armada_3700_xtal_clock_driver_init+0x0/0x20 returned 0 after 343 usecs
[    1.143574] initcall armada_3700_tbg_clock_driver_init+0x0/0x20 returned 0 after 381 usecs
[    1.144487] initcall armada_3700_periph_clock_driver_init+0x0/0x20 returned 0 after 748 usecs
[    1.155650] initcall ap806_clock_driver_init+0x0/0x24 returned 0 after 10783 usecs
[    1.156219] initcall ap806_syscon_legacy_driver_init+0x0/0x20 returned 0 after 490 usecs
[    1.156567] initcall cp110_clock_driver_init+0x0/0x24 returned 0 after 290 usecs
[    1.157354] initcall cp110_syscon_legacy_driver_init+0x0/0x20 returned 0 after 712 usecs
[    1.157768] initcall mmcc_msm8996_driver_init+0x0/0x20 returned 0 after 352 usecs
[    1.158271] initcall exynos_audss_clk_driver_init+0x0/0x24 returned 0 after 437 usecs
[    1.158642] initcall sun4i_a10_mod0_clk_driver_init+0x0/0x20 returned 0 after 308 usecs
[    1.159039] initcall sun9i_a80_mmc_config_clk_driver_init+0x0/0x20 returned 0 after 290 usecs
[    1.159432] initcall sun50i_a64_ccu_driver_init+0x0/0x20 returned 0 after 319 usecs
[    1.160553] initcall uniphier_clk_driver_init+0x0/0x20 returned 0 after 1042 usecs
[    1.160917] initcall k3_pdma_driver_init+0x0/0x20 returned 0 after 305 usecs
[    1.161296] initcall mv_xor_v2_driver_init+0x0/0x20 returned 0 after 319 usecs
[    1.161474] initcall pl330_driver_init+0x0/0x1c returned 0 after 128 usecs
[    1.161556] initcall shdma_enter+0x0/0x48 returned 0 after 41 usecs
[    1.162729] initcall shdma_of_init+0x0/0x20 returned 0 after 366 usecs
[    1.163121] initcall rcar_dmac_driver_init+0x0/0x20 returned 0 after 327 usecs
[    1.163821] initcall tegra_dmac_driver_init+0x0/0x20 returned 0 after 601 usecs
[    1.164530] initcall bam_dma_driver_init+0x0/0x20 returned 0 after 619 usecs
[    1.166110] initcall hidma_mgmt_init+0x0/0x6c returned 0 after 1478 usecs
[    1.166561] initcall hidma_driver_init+0x0/0x20 returned 0 after 384 usecs
[    1.166951] initcall rpi_power_driver_init+0x0/0x20 returned 0 after 329 usecs
[    1.167489] initcall scpsys_drv_init+0x0/0x20 returned 0 after 473 usecs
[    1.167616] initcall meson_gx_socinfo_init+0x0/0x268 returned -19 after 80 usecs
[    1.168059] initcall qcom_smp2p_driver_init+0x0/0x20 returned 0 after 384 usecs
[    1.168429] initcall qcom_smsm_driver_init+0x0/0x20 returned 0 after 311 usecs
[    1.168875] initcall sunxi_sram_driver_init+0x0/0x20 returned 0 after 355 usecs
[    1.169047] initcall tegra_init_soc+0x0/0x5c returned 0 after 124 usecs
[    1.170853] initcall tegra_fuse_driver_init+0x0/0x20 returned 0 after 1670 usecs
[    1.171390] initcall tegra_flowctrl_driver_init+0x0/0x20 returned 0 after 446 usecs
[    1.172004] initcall tegra_pmc_driver_init+0x0/0x20 returned 0 after 543 usecs
[    1.172427] initcall tegra186_pmc_driver_init+0x0/0x20 returned 0 after 346 usecs
[    1.200380] initcall virtio_mmio_init+0x0/0x20 returned 0 after 27225 usecs
[    1.207300] initcall virtio_pci_driver_init+0x0/0x28 returned 0 after 6655 usecs
[    1.207725] initcall virtio_balloon_driver_init+0x0/0x1c returned 0 after 343 usecs
[    1.207782] initcall xenbus_probe_initcall+0x0/0x70 returned -19 after 15 usecs
[    1.207822] initcall xenbus_init+0x0/0x54 returned -19 after 6 usecs
[    1.207865] initcall xenbus_backend_init+0x0/0x68 returned -19 after 7 usecs
[    1.207951] initcall evtchn_init+0x0/0x64 returned -19 after 16 usecs
[    1.207993] initcall gntdev_init+0x0/0x6c returned -19 after 7 usecs
[    1.208055] initcall gntalloc_init+0x0/0x54 returned -19 after 23 usecs
[    1.208095] initcall xenfs_init+0x0/0x30 returned 0 after 7 usecs
[    1.208138] initcall hypervisor_subsys_init+0x0/0x2c returned -19 after 8 usecs
[    1.208191] initcall hyper_sysfs_init+0x0/0x138 returned -19 after 20 usecs
[    1.208232] initcall privcmd_init+0x0/0x54 returned -19 after 6 usecs
[    1.208685] initcall axp20x_regulator_driver_init+0x0/0x20 returned 0 after 393 usecs
[    1.208915] initcall fan53555_regulator_driver_init+0x0/0x20 returned 0 after 106 usecs
[    1.212681] initcall hi6421v530_regulator_driver_init+0x0/0x20 returned 0 after 1352 usecs
[    1.213269] initcall hi655x_regulator_driver_init+0x0/0x20 returned 0 after 510 usecs
[    1.214381] initcall max77620_regulator_driver_init+0x0/0x20 returned 0 after 1026 usecs
[    1.215728] initcall qcom_spmi_regulator_driver_init+0x0/0x20 returned 0 after 1191 usecs
[    1.219085] initcall pwm_regulator_driver_init+0x0/0x20 returned 0 after 3185 usecs
[    1.219857] initcall rk808_regulator_driver_init+0x0/0x20 returned 0 after 685 usecs
[    1.220691] initcall s2mps11_pmic_driver_init+0x0/0x20 returned 0 after 758 usecs
[    1.222473] initcall berlin_reset_driver_init+0x0/0x20 returned 0 after 1678 usecs
[    1.225723] initcall meson_reset_driver_init+0x0/0x20 returned 0 after 2448 usecs
[    1.227767] initcall sunxi_reset_driver_init+0x0/0x20 returned 0 after 863 usecs
[    1.229999] initcall uniphier_reset_driver_init+0x0/0x20 returned 0 after 2111 usecs
[    1.230068] initcall n_null_init+0x0/0x28 returned 0 after 20 usecs
[    1.276899] initcall pty_init+0x0/0x39c returned 0 after 45660 usecs
[    1.277958] initcall sysrq_init+0x0/0x90 returned 0 after 425 usecs
[    1.278008] initcall xen_hvc_init+0x0/0x288 returned -19 after 9 usecs
[    1.291375] initcall serial8250_init+0x0/0x17c returned 0 after 12983 usecs
[    1.291891] initcall serial_pci_driver_init+0x0/0x28 returned 0 after 438 usecs
[    1.292565] initcall exar_pci_driver_init+0x0/0x28 returned 0 after 597 usecs
[    1.295918] initcall bcm2835aux_serial_driver_init+0x0/0x20 returned 0 after 3180 usecs
[    1.297914] initcall dw8250_platform_driver_init+0x0/0x20 returned 0 after 1874 usecs
[    1.298605] initcall mtk8250_platform_driver_init+0x0/0x20 returned 0 after 609 usecs
[    1.299982] initcall uniphier_uart_platform_driver_init+0x0/0x20 returned 0 after 1251 usecs
[    1.301123] initcall of_platform_serial_driver_init+0x0/0x20 returned 0 after 1052 usecs
[    1.302984] initcall samsung_serial_driver_init+0x0/0x24 returned 0 after 1738 usecs
[    1.308461] initcall sci_init+0x0/0x34 returned 0 after 5176 usecs
[    1.311928] initcall meson_uart_init+0x0/0x60 returned 0 after 3280 usecs
[    1.315302] initcall msm_serial_init+0x0/0x5c returned 0 after 3215 usecs
[    1.316842] initcall cdns_uart_init+0x0/0x60 returned 0 after 1431 usecs
[    1.318819] initcall tegra_uart_init+0x0/0x88 returned 0 after 1844 usecs
[    1.318990] initcall init_kgdboc+0x0/0x2c returned 0 after 114 usecs
[    1.319537] initcall init+0x0/0x124 returned 0 after 471 usecs
[    1.320263] initcall arm_smmu_driver_init+0x0/0x24 returned 0 after 625 usecs
[    1.322183] initcall arm_smmu_driver_init+0x0/0x24 returned 0 after 1743 usecs
[    1.322510] initcall topology_sysfs_init+0x0/0x38 returned 0 after 255 usecs
[    1.327690] initcall cacheinfo_sysfs_init+0x0/0x38 returned -2 after 4950 usecs
[    1.379986] initcall loop_init+0x0/0x158 returned 0 after 50990 usecs
[    1.434777] initcall init+0x0/0xa8 returned 0 after 53435 usecs
[    1.434887] initcall xlblk_init+0x0/0x10c returned -19 after 23 usecs
[    1.435446] initcall cros_ec_driver_init+0x0/0x20 returned 0 after 501 usecs
[    1.435881] initcall cros_ec_driver_spi_init+0x0/0x20 returned 0 after 376 usecs
[    1.436446] initcall axp20x_rsb_driver_init+0x0/0x1c returned 0 after 503 usecs
[    1.436814] initcall max77620_driver_init+0x0/0x20 returned 0 after 311 usecs
[    1.437737] initcall pmic_spmi_driver_init+0x0/0x20 returned 0 after 851 usecs
[    1.438359] initcall rk808_i2c_driver_init+0x0/0x20 returned 0 after 555 usecs
[    1.439070] initcall hi6421_pmic_driver_init+0x0/0x20 returned 0 after 639 usecs
[    1.439893] initcall hi655x_pmic_driver_init+0x0/0x20 returned 0 after 750 usecs
[    1.443050] initcall sas_transport_init+0x0/0xd0 returned 0 after 3013 usecs
[    1.443241] initcall sas_class_init+0x0/0x44 returned 0 after 78 usecs
[    1.446843] initcall init_sd+0x0/0x184 returned 0 after 3451 usecs
[    1.447391] initcall hisi_sas_init+0x0/0x38 returned 0 after 478 usecs
[    1.449505] initcall hisi_sas_v1_driver_init+0x0/0x20 returned 0 after 2000 usecs
[    1.450612] initcall hisi_sas_v2_driver_init+0x0/0x20 returned 0 after 1017 usecs
[    1.451309] initcall sas_v3_pci_driver_init+0x0/0x28 returned 0 after 626 usecs
[    1.451834] initcall ahci_pci_driver_init+0x0/0x28 returned 0 after 458 usecs
[    1.453128] initcall ahci_driver_init+0x0/0x20 returned 0 after 1174 usecs
[    1.454652] initcall sil24_pci_driver_init+0x0/0x28 returned 0 after 1418 usecs
[    1.455526] initcall ceva_ahci_driver_init+0x0/0x20 returned 0 after 790 usecs
[    1.456835] initcall ahci_mvebu_driver_init+0x0/0x20 returned 0 after 1181 usecs
[    1.460396] initcall xgene_ahci_driver_init+0x0/0x20 returned 0 after 3397 usecs
[    1.461305] initcall ahci_qoriq_driver_init+0x0/0x20 returned 0 after 824 usecs
[    1.463532] initcall sata_rcar_driver_init+0x0/0x20 returned 0 after 2076 usecs
[    1.465937] initcall pata_platform_driver_init+0x0/0x24 returned 0 after 2131 usecs
[    1.468369] initcall pata_of_platform_driver_init+0x0/0x20 returned 0 after 2284 usecs
[    1.470490] initcall init_mtd+0x0/0x138 returned 0 after 2011 usecs
[    1.470597] initcall ofpart_parser_init+0x0/0x3c returned 0 after 61 usecs
[    1.470771] initcall init_mtdblock+0x0/0x1c returned 0 after 133 usecs
[    1.471460] initcall m25p80_driver_init+0x0/0x20 returned 0 after 627 usecs
[    1.472144] initcall denali_dt_driver_init+0x0/0x20 returned 0 after 616 usecs
[    1.473070] initcall bcm_iproc_driver_init+0x0/0x20 returned 0 after 851 usecs
[    1.473737] initcall brcmstb_qspi_driver_init+0x0/0x20 returned 0 after 598 usecs
[    1.475155] initcall orion_spi_driver_init+0x0/0x20 returned 0 after 1330 usecs
[    1.476101] initcall spi_qup_driver_init+0x0/0x20 returned 0 after 869 usecs
[    1.477410] initcall rockchip_spi_driver_init+0x0/0x20 returned 0 after 1225 usecs
[    1.478876] initcall s3c64xx_spi_driver_init+0x0/0x20 returned 0 after 1365 usecs
[    1.479590] initcall spmi_pmic_arb_driver_init+0x0/0x20 returned 0 after 638 usecs
[    1.479772] initcall net_olddevs_init+0x0/0x90 returned 0 after 135 usecs
[    1.481010] initcall mdiomux_iproc_driver_init+0x0/0x20 returned 0 after 1159 usecs
[    1.481822] initcall mdio_mux_mmioreg_driver_init+0x0/0x20 returned 0 after 559 usecs
[    1.483010] initcall xgene_mdio_driver_init+0x0/0x20 returned 0 after 886 usecs
[    1.485688] initcall fixed_mdio_bus_init+0x0/0xe0 returned 0 after 2564 usecs
[    1.493407] initcall phy_module_init+0x0/0x24 returned 0 after 7482 usecs
[    1.493757] initcall phy_module_init+0x0/0x24 returned 0 after 289 usecs
[    1.496330] initcall tun_init+0x0/0xd0 returned 0 after 2454 usecs
[    1.506304] initcall virtio_net_driver_init+0x0/0xb8 returned 0 after 9666 usecs
[    1.507837] initcall xgbe_mod_init+0x0/0x2c returned 0 after 1430 usecs
[    1.508372] initcall xgene_enet_driver_init+0x0/0x20 returned 0 after 470 usecs
[    1.509588] initcall macb_driver_init+0x0/0x20 returned 0 after 1137 usecs
[    1.510060] initcall bgmac_enet_driver_init+0x0/0x20 returned 0 after 411 usecs
[    1.510527] initcall hns_mdio_driver_init+0x0/0x20 returned 0 after 407 usecs
[    1.511005] initcall g_dsaf_driver_init+0x0/0x20 returned 0 after 359 usecs
[    1.511574] initcall hns_nic_dev_driver_init+0x0/0x20 returned 0 after 485 usecs
[    1.512543] initcall e1000_init_module+0x0/0x48 returned 0 after 893 usecs
[    1.520800] initcall igb_init_module+0x0/0x60 returned 0 after 7982 usecs
[    1.522971] initcall igbvf_init_module+0x0/0x5c returned 0 after 2054 usecs
[    1.523578] initcall orion_mdio_driver_init+0x0/0x20 returned 0 after 539 usecs
[    1.524163] initcall mvneta_driver_init+0x0/0xc0 returned 0 after 515 usecs
[    1.524649] initcall mvpp2_driver_init+0x0/0x20 returned 0 after 412 usecs
[    1.530106] initcall sky2_init_module+0x0/0x34 returned 0 after 5234 usecs
[    1.530877] initcall ravb_driver_init+0x0/0x20 returned 0 after 673 usecs
[    1.531788] initcall smc_driver_init+0x0/0x20 returned 0 after 753 usecs
[    1.532662] initcall smsc911x_init_module+0x0/0x20 returned 0 after 740 usecs
[    1.532736] initcall netif_init+0x0/0x78 returned -19 after 13 usecs
[    1.534867] initcall vfio_init+0x0/0x184 returned 0 after 2031 usecs
[    1.540978] initcall vfio_virqfd_init+0x0/0x50 returned 0 after 5896 usecs
[    1.541117] initcall vfio_iommu_type1_init+0x0/0x1c returned 0 after 81 usecs
[    1.542418] initcall vfio_pci_init+0x0/0x140 returned 0 after 1221 usecs
[    1.543172] initcall msm_otg_driver_init+0x0/0x20 returned 0 after 601 usecs
[    1.544077] initcall phy_8x16_driver_init+0x0/0x20 returned 0 after 782 usecs
[    1.544774] initcall dwc3_driver_init+0x0/0x20 returned 0 after 599 usecs
[    1.547131] initcall dwc3_exynos_driver_init+0x0/0x20 returned 0 after 2168 usecs
[    1.547468] initcall dwc3_pci_driver_init+0x0/0x28 returned 0 after 263 usecs
[    1.548097] initcall dwc3_of_simple_driver_init+0x0/0x20 returned 0 after 528 usecs
[    1.548906] initcall dwc2_platform_driver_init+0x0/0x20 returned 0 after 738 usecs
[    1.551572] initcall isp1760_init+0x0/0x68 returned 0 after 2535 usecs
[    1.552055] initcall ehci_hcd_init+0x0/0x70 returned 0 after 416 usecs
[    1.552631] initcall ehci_pci_init+0x0/0x88 returned 0 after 516 usecs
[    1.555084] initcall ehci_platform_init+0x0/0x60 returned 0 after 2330 usecs
[    1.555834] initcall ehci_orion_init+0x0/0x5c returned 0 after 677 usecs
[    1.556731] initcall ehci_exynos_init+0x0/0x5c returned 0 after 822 usecs
[    1.558700] initcall ehci_msm_init+0x0/0x5c returned 0 after 1854 usecs
[    1.559441] initcall ohci_hcd_mod_init+0x0/0x84 returned 0 after 596 usecs
[    1.560067] initcall ohci_pci_init+0x0/0x88 returned 0 after 560 usecs
[    1.560932] initcall ohci_platform_init+0x0/0x60 returned 0 after 795 usecs
[    1.566367] initcall ohci_exynos_init+0x0/0x5c returned 0 after 5234 usecs
[    1.566438] initcall xhci_hcd_init+0x0/0x20 returned 0 after 21 usecs
[    1.566834] initcall xhci_pci_init+0x0/0x5c returned 0 after 343 usecs
[    1.567610] initcall xhci_plat_init+0x0/0x34 returned 0 after 706 usecs
[    1.568097] initcall tegra_xusb_init+0x0/0x34 returned 0 after 421 usecs
[    1.568888] initcall usb_storage_driver_init+0x0/0x48 returned 0 after 721 usecs
[    1.579523] initcall usb3503_init+0x0/0x68 returned 0 after 1214 usecs
[    1.579901] initcall ci_hdrc_platform_register+0x0/0x28 returned 0 after 309 usecs
[    1.580325] initcall ci_hdrc_usb2_driver_init+0x0/0x20 returned 0 after 364 usecs
[    1.580751] initcall ci_hdrc_msm_driver_init+0x0/0x20 returned 0 after 366 usecs
[    1.581173] initcall ci_hdrc_zevio_driver_init+0x0/0x20 returned 0 after 362 usecs
[    1.582138] initcall ci_hdrc_pci_driver_init+0x0/0x28 returned 0 after 887 usecs
[    1.582876] initcall usbmisc_imx_driver_init+0x0/0x20 returned 0 after 669 usecs
[    1.583561] initcall ci_hdrc_imx_driver_init+0x0/0x20 returned 0 after 609 usecs
[    1.584318] initcall tegra_udc_driver_init+0x0/0x20 returned 0 after 614 usecs
[    1.585080] initcall udc_plat_driver_init+0x0/0x20 returned 0 after 660 usecs
[    1.592688] initcall bdc_driver_init+0x0/0x20 returned 0 after 7347 usecs
[    1.593717] initcall bdc_pci_driver_init+0x0/0x28 returned 0 after 935 usecs
[    1.593886] initcall ambakmi_driver_init+0x0/0x1c returned 0 after 114 usecs
[    1.593944] initcall input_leds_init+0x0/0x1c returned 0 after 19 usecs
[    1.593990] initcall evdev_init+0x0/0x1c returned 0 after 10 usecs
[    1.594579] initcall atkbd_init+0x0/0x34 returned 0 after 517 usecs
[    1.595613] initcall cros_ec_keyb_driver_init+0x0/0x20 returned 0 after 942 usecs
[    1.596091] initcall psmouse_init+0x0/0xa8 returned 0 after 413 usecs
[    1.596683] initcall hi65xx_powerkey_driver_init+0x0/0x20 returned 0 after 524 usecs
[    1.597103] initcall pm8941_pwrkey_driver_init+0x0/0x20 returned 0 after 357 usecs
[    1.597157] initcall xenkbd_init+0x0/0x50 returned -19 after 12 usecs
[    1.598769] initcall rtc_init+0x0/0x48 returned 0 after 1463 usecs
[    1.599877] initcall brcmstb_waketmr_driver_init+0x0/0x20 returned 0 after 965 usecs
[    1.600253] initcall ds323x_init+0x0/0x78 returned 0 after 291 usecs
[    1.600790] initcall efi_rtc_driver_init+0x0/0x28 returned -19 after 467 usecs
[    1.601123] initcall max77686_rtc_driver_init+0x0/0x20 returned 0 after 273 usecs
[    1.617394] initcall pl031_driver_init+0x0/0x1c returned 0 after 15816 usecs
[    1.618749] initcall s3c_rtc_driver_init+0x0/0x20 returned 0 after 1208 usecs
[    1.619188] initcall s5m_rtc_driver_init+0x0/0x20 returned 0 after 353 usecs
[    1.619647] initcall sun6i_rtc_driver_init+0x0/0x20 returned 0 after 388 usecs
[    1.620226] initcall tegra_rtc_driver_init+0x0/0x28 returned -19 after 503 usecs
[    1.620638] initcall xgene_rtc_driver_init+0x0/0x20 returned 0 after 351 usecs
[    1.622204] initcall i2c_dev_init+0x0/0xdc returned 0 after 1437 usecs
[    1.622724] initcall bcm_iproc_i2c_driver_init+0x0/0x20 returned 0 after 444 usecs
[    1.623288] initcall exynos5_i2c_driver_init+0x0/0x20 returned 0 after 489 usecs
[    1.623871] initcall meson_i2c_driver_init+0x0/0x20 returned 0 after 499 usecs
[    1.624817] initcall mv64xxx_i2c_driver_init+0x0/0x20 returned 0 after 826 usecs
[    1.627232] initcall qup_i2c_driver_init+0x0/0x20 returned 0 after 2245 usecs
[    1.627967] initcall rk3x_i2c_driver_init+0x0/0x20 returned 0 after 648 usecs
[    1.628374] initcall tegra_bpmp_i2c_driver_init+0x0/0x20 returned 0 after 344 usecs
[    1.628810] initcall uniphier_fi2c_drv_init+0x0/0x20 returned 0 after 372 usecs
[    1.630138] initcall rcar_i2c_driver_init+0x0/0x20 returned 0 after 1238 usecs
[    1.630594] initcall zx2967_i2c_driver_init+0x0/0x20 returned 0 after 392 usecs
[    1.631083] initcall brcmstb_i2c_driver_init+0x0/0x20 returned 0 after 425 usecs
[    1.631561] initcall ec_i2c_tunnel_driver_init+0x0/0x20 returned 0 after 414 usecs
[    1.631735] initcall pca954x_driver_init+0x0/0x20 returned 0 after 124 usecs
[    1.632174] initcall ptp_dte_driver_init+0x0/0x20 returned 0 after 379 usecs
[    1.632614] initcall msm_restart_init+0x0/0x20 returned 0 after 377 usecs
[    1.634403] initcall vexpress_reset_init+0x0/0x20 returned 0 after 1679 usecs
[    1.634837] initcall xgene_reboot_init+0x0/0x20 returned 0 after 366 usecs
[    1.635295] initcall syscon_reboot_driver_init+0x0/0x20 returned 0 after 355 usecs
[    1.635802] initcall syscon_reboot_mode_driver_init+0x0/0x20 returned 0 after 405 usecs
[    1.635993] initcall bq27xxx_battery_i2c_driver_init+0x0/0x20 returned 0 after 132 usecs
[    1.636697] initcall scpi_hwmon_platdrv_init+0x0/0x20 returned 0 after 631 usecs
[    1.638775] initcall exynos_tmu_driver_init+0x0/0x20 returned 0 after 1948 usecs
[    1.639429] initcall hisi_thermal_driver_init+0x0/0x20 returned 0 after 566 usecs
[    1.639933] initcall mtk_thermal_driver_init+0x0/0x20 returned 0 after 436 usecs
[    1.640496] initcall s3c2410wdt_driver_init+0x0/0x20 returned 0 after 497 usecs
[    1.645954] initcall bcm2835_wdt_driver_init+0x0/0x20 returned 0 after 5256 usecs
[    1.646588] initcall rwdt_driver_init+0x0/0x20 returned 0 after 529 usecs
[    1.647008] initcall uniphier_wdt_driver_init+0x0/0x20 returned 0 after 355 usecs
[    1.647387] initcall dt_cpufreq_platdrv_init+0x0/0x20 returned 0 after 275 usecs
[    1.647532] initcall cpufreq_dt_platdev_init+0x0/0xdc returned -19 after 98 usecs
[    1.648018] initcall brcm_avs_cpufreq_platdrv_init+0x0/0x20 returned 0 after 364 usecs
[    1.648358] initcall scpi_cpufreq_platdrv_init+0x0/0x20 returned 0 after 277 usecs
[    1.648489] initcall tegra_cpufreq_init+0x0/0xb0 returned -2 after 84 usecs
[    1.648572] initcall tegra_cpufreq_init+0x0/0x94 returned -19 after 42 usecs
[    1.648769] initcall arm_idle_init+0x0/0x1ec returned -19 after 150 usecs
[    1.660251] initcall mmc_pwrseq_simple_driver_init+0x0/0x20 returned 0 after 11123 usecs
[    1.668572] initcall mmc_pwrseq_emmc_driver_init+0x0/0x20 returned 0 after 7957 usecs
[    1.670498] initcall mmc_blk_init+0x0/0xa0 returned 0 after 1737 usecs
[    1.670709] initcall mmci_driver_init+0x0/0x1c returned 0 after 140 usecs
[    1.671503] initcall sdhci_drv_init+0x0/0x2c returned 0 after 732 usecs
[    1.671901] initcall sdhci_acpi_driver_init+0x0/0x20 returned 0 after 340 usecs
[    1.672040] initcall mmc_spi_driver_init+0x0/0x20 returned 0 after 90 usecs
[    1.672528] initcall renesas_internal_dmac_sdhi_driver_init+0x0/0x20 returned 0 after 427 usecs
[    1.672933] initcall dw_mci_init+0x0/0x20 returned 0 after 347 usecs
[    1.675560] initcall dw_mci_pltfm_driver_init+0x0/0x20 returned 0 after 858 usecs
[    1.676362] initcall dw_mci_exynos_pltfm_driver_init+0x0/0x20 returned 0 after 653 usecs
[    1.677170] initcall dw_mci_k3_pltfm_driver_init+0x0/0x20 returned 0 after 705 usecs
[    1.678732] initcall dw_mci_rockchip_pltfm_driver_init+0x0/0x20 returned 0 after 1455 usecs
[    1.679471] initcall meson_mmc_driver_init+0x0/0x20 returned 0 after 644 usecs
[    1.680429] initcall sunxi_mmc_driver_init+0x0/0x20 returned 0 after 852 usecs
[    1.680892] initcall bcm2835_driver_init+0x0/0x20 returned 0 after 398 usecs
[    1.682911] initcall sdhci_pltfm_drv_init+0x0/0x20 returned 0 after 1911 usecs
[    1.683659] initcall sdhci_cdns_driver_init+0x0/0x20 returned 0 after 668 usecs
[    1.684486] initcall sdhci_tegra_driver_init+0x0/0x20 returned 0 after 748 usecs
[    1.685846] initcall sdhci_arasan_driver_init+0x0/0x20 returned 0 after 1275 usecs
[    1.686419] initcall sdhci_esdhc_driver_init+0x0/0x20 returned 0 after 508 usecs
[    1.686971] initcall sdhci_iproc_driver_init+0x0/0x20 returned 0 after 490 usecs
[    1.687407] initcall sdhci_msm_driver_init+0x0/0x20 returned 0 after 378 usecs
[    1.687868] initcall sdhci_brcmstb_driver_init+0x0/0x20 returned 0 after 403 usecs
[    1.688581] initcall sdhci_xenon_driver_init+0x0/0x20 returned 0 after 628 usecs
[    1.693735] initcall gpio_led_driver_init+0x0/0x20 returned 0 after 4956 usecs
[    1.694320] initcall led_pwm_driver_init+0x0/0x20 returned 0 after 512 usecs
[    1.694776] initcall syscon_led_driver_init+0x0/0x20 returned 0 after 395 usecs
[    1.694889] initcall heartbeat_trig_init+0x0/0x4c returned 0 after 68 usecs
[    1.700264] initcall ledtrig_cpu_init+0x0/0x10c returned 0 after 5171 usecs
[    1.700345] initcall defon_trig_init+0x0/0x1c returned 0 after 24 usecs
[    1.703122] initcall scpi_driver_init+0x0/0x20 returned 0 after 2604 usecs
[    1.704221] initcall scpi_power_domain_driver_init+0x0/0x20 returned 0 after 942 usecs
[    1.704979] initcall rpi_firmware_driver_init+0x0/0x20 returned 0 after 661 usecs
[    1.710427] initcall meson_sm_init+0x0/0xc8 returned -19 after 116 usecs
[    1.710569] initcall esrt_sysfs_init+0x0/0x2a0 returned -38 after 56 usecs
[    1.710615] initcall efi_capsule_loader_init+0x0/0x58 returned -19 after 10 usecs
[    1.711094] initcall hid_init+0x0/0x64 returned 0 after 422 usecs
[    1.711363] initcall hid_generic_init+0x0/0x28 returned 0 after 215 usecs
[    1.711673] initcall a4_driver_init+0x0/0x28 returned 0 after 235 usecs
[    1.712047] initcall apple_driver_init+0x0/0x28 returned 0 after 294 usecs
[    1.712317] initcall belkin_driver_init+0x0/0x28 returned 0 after 193 usecs
[    1.712631] initcall ch_driver_init+0x0/0x28 returned 0 after 237 usecs
[    1.712824] initcall ch_driver_init+0x0/0x28 returned 0 after 129 usecs
[    1.713172] initcall cp_driver_init+0x0/0x28 returned 0 after 292 usecs
[    1.714330] initcall ez_driver_init+0x0/0x28 returned 0 after 1051 usecs
[    1.714769] initcall ite_driver_init+0x0/0x28 returned 0 after 322 usecs
[    1.715046] initcall ks_driver_init+0x0/0x28 returned 0 after 214 usecs
[    1.715267] initcall lg_driver_init+0x0/0x28 returned 0 after 163 usecs
[    1.715508] initcall ms_driver_init+0x0/0x28 returned 0 after 186 usecs
[    1.715708] initcall mr_driver_init+0x0/0x28 returned 0 after 145 usecs
[    1.716800] initcall hid_init+0x0/0x6c returned 0 after 1010 usecs
[    1.717872] initcall arm_mhu_driver_init+0x0/0x1c returned 0 after 994 usecs
[    1.718543] initcall platform_mhu_driver_init+0x0/0x20 returned 0 after 584 usecs
[    1.719424] initcall bcm2835_mbox_driver_init+0x0/0x20 returned 0 after 751 usecs
[    1.720295] initcall flexrm_mbox_driver_init+0x0/0x20 returned 0 after 705 usecs
[    1.720536] initcall extcon_class_init+0x0/0x28 returned 0 after 174 usecs
[    1.721918] initcall usb_extcon_driver_init+0x0/0x20 returned 0 after 1296 usecs
[    1.722652] initcall exynos_adc_driver_init+0x0/0x20 returned 0 after 662 usecs
[    1.723453] initcall meson_sar_adc_driver_init+0x0/0x20 returned 0 after 695 usecs
[    1.723973] initcall register_l2_cache_pmu_driver+0x0/0x50 returned 0 after 429 usecs
[    1.724359] initcall register_qcom_l3_cache_pmu_driver+0x0/0x50 returned 0 after 322 usecs
[    1.724894] initcall bcm_otpc_driver_init+0x0/0x20 returned 0 after 469 usecs
[    1.724983] initcall optee_driver_init+0x0/0x498 returned -19 after 43 usecs
[    1.727296] initcall alsa_timer_init+0x0/0x1c4 returned 0 after 2193 usecs
[    1.727742] initcall alsa_pcm_init+0x0/0x7c returned 0 after 379 usecs
[    1.734073] initcall snd_soc_init+0x0/0x100 returned 0 after 6110 usecs
[    1.734534] initcall asoc_simple_card_init+0x0/0x20 returned 0 after 376 usecs
[    1.735102] initcall sock_diag_init+0x0/0x4c returned 0 after 480 usecs
[    1.735167] initcall gre_offload_init+0x0/0x5c returned 0 after 24 usecs
[    1.735534] initcall sysctl_ipv4_init+0x0/0x5c returned 0 after 318 usecs
[    1.735656] initcall xfrm4_beet_init+0x0/0x20 returned 0 after 81 usecs
[    1.735707] initcall xfrm4_transport_init+0x0/0x20 returned 0 after 17 usecs
[    1.735751] initcall xfrm4_mode_tunnel_init+0x0/0x20 returned 0 after 9 usecs
[    1.735930] initcall inet_diag_init+0x0/0x98 returned 0 after 139 usecs
[    1.736015] initcall tcp_diag_init+0x0/0x1c returned 0 after 49 usecs
[    1.736091] initcall cubictcp_register+0x0/0x60 returned 0 after 41 usecs
[    1.753228] initcall packet_init+0x0/0x58 returned 0 after 16634 usecs
[    1.756392] initcall init_rpcsec_gss+0x0/0x88 returned 0 after 2924 usecs
[    1.758522] initcall init_p9+0x0/0x28 returned 0 after 1949 usecs
[    1.759400] initcall p9_virtio_init+0x0/0x40 returned 0 after 716 usecs
[    1.760137] initcall init_dns_resolver+0x0/0x108 returned 0 after 641 usecs

6 레벨: device_initcall_sync()

[    1.760203] initcall arm_smmu_legacy_bus_init+0x0/0x30 returned 0 after 23 usecs

7 레벨: late_initcall()

[    1.760773] initcall sys_reg_genericv8_init+0x0/0x6c returned 0 after 37 usecs
[    1.760822] initcall xen_pm_init+0x0/0xd4 returned -19 after 15 usecs
[    1.760880] initcall init_oops_id+0x0/0x40 returned 0 after 20 usecs
[    1.764204] initcall pm_qos_power_init+0x0/0xcc returned 0 after 3108 usecs
[    1.764341] initcall pm_debugfs_init+0x0/0x34 returned 0 after 64 usecs
[    1.764448] initcall printk_late_init+0x0/0x130 returned 0 after 66 usecs
[    1.764524] initcall tk_debug_sleep_time_init+0x0/0x4c returned 0 after 36 usecs
[    1.766003] initcall taskstats_init+0x0/0x4c returned 0 after 1395 usecs
[    1.766130] initcall fault_around_debugfs+0x0/0x44 returned 0 after 73 usecs
[    1.766174] initcall max_swapfiles_check+0x0/0x8 returned 0 after 4 usecs
[    1.766305] initcall split_huge_pages_debugfs+0x0/0x48 returned 0 after 90 usecs
[    1.766378] initcall check_early_ioremap_leak+0x0/0x5c returned 0 after 35 usecs
[    1.768147] initcall init_root_keyring+0x0/0x14 returned 0 after 1672 usecs
[    1.768324] initcall prandom_reseed+0x0/0x40 returned 0 after 124 usecs
[    1.768424] initcall pci_resource_alignment_sysfs_init+0x0/0x28 returned 0 after 54 usecs
[    1.771184] initcall pci_sysfs_init+0x0/0x60 returned 0 after 2629 usecs
[    1.771262] initcall bert_init+0x0/0x21c returned 0 after 27 usecs
[    1.771765] initcall clk_debug_init+0x0/0x14c returned 0 after 447 usecs
[    1.771855] initcall boot_wait_for_devices+0x0/0x28 returned 0 after 46 usecs
[    1.772122] initcall deferred_probe_initcall+0x0/0x48 returned 0 after 212 usecs
[    1.772248] initcall pm_genpd_debug_init+0x0/0x17c returned 0 after 77 usecs
[    1.772311] initcall genpd_power_off_unused+0x0/0x94 returned 0 after 28 usecs
[    1.775732] initcall gpio_keys_init+0x0/0x20 returned 0 after 3271 usecs
[    1.778098] initcall rtc_hctosys+0x0/0xe4 returned 0 after 2222 usecs
[    1.778189] initcall register_update_efi_random_seed+0x0/0x38 returned 0 after 36 usecs
[    1.778236] initcall efi_shutdown_init+0x0/0x54 returned -19 after 9 usecs
[    1.778530] initcall of_fdt_raw_init+0x0/0x7c returned 0 after 248 usecs
[    1.778648] initcall tcp_congestion_default+0x0/0x1c returned 0 after 69 usecs
[    1.778849] initcall ip_auto_config+0x0/0xebc returned 0 after 115 usecs

7 레벨: late_initcall_sync()

[    1.778931] initcall software_resume+0x0/0x298 returned -2 after 38 usecs
[    1.778976] initcall fb_logo_late_init+0x0/0x14 returned 0 after 6 usecs
[    1.779135] initcall clk_disable_unused+0x0/0x138 returned 0 after 115 usecs
[    1.779236] initcall regulator_init_complete+0x0/0x70 returned 0 after 56 usecs
[    1.779790] initcall alsa_sound_last_init+0x0/0x80 returned 0 after 497 usecs
[    2.441747] initcall inet6_init+0x0/0x350 [ipv6] returned 0 after 11985 usecs
[    2.452314] initcall xt_init+0x0/0x1000 [x_tables] returned 0 after 167 usecs
[    2.462849] initcall ip_tables_init+0x0/0x1000 [ip_tables] returned 0 after 3393 usecs
[   40.729837] initcall cpu_feature_match_PMULL_init+0x0/0x1000 [crct10dif_ce] returned 0 after 100664 usecs
[   40.868079] initcall crc32_pmull_mod_init+0x0/0x1000 [crc32_ce] returned 0 after 67230 usecs

참고

Device & Driver -1- (Device Driver Model) | 문c
Device & Driver -2- (Bus & Class) | 문c
Device & Driver -3- (Platform device) | 문c
Sysfs (kobject & kset) | 문c
driver_init() | 문c
devtmpfs & kdevtmpfs 스레드 | 문c
do_initcalls() | 문c – 현재 글

Linux Device Model Part 1 | Sarah Diesburg – 다운로드 pdf
Linux Device Model Part 2 | Sarah Diesburg – 다운로드 pdf
Linux Device Drivers | OPERSYS – 다운로드 pdf
Embedded data structures and lifetime management | Shuah Khan, Samsung Open Source Group – 다운로드 pdf
The Sysfs Virtual Filesystem Exploring the Linux Device Model | Bill Gatliff – 다운로드 pdf
Linux Device Drivers | Jie Liao – 다운로드 pdf
The zen of kobjects | LWN.net
Linux Device Drivers, Third Edition | LWN.net
kobject/kset/ktype documentation and example code updated | LWN.net
Documentation/driver-model/ | kernel.org
Brief sysfs Tutorial | Ben Marks – 다운로드 pdf
Rules on how to access information in sysfs | kernel.org

parse_args() | 문c
Kernel Parameters | kernel.org

do_initcalls()

do_initcall_level()

do_one_initcall()

initcall 레벨별 주요 파라메터

initcall 섹션

initcall 함수 등록

initcall 레벨별 주요 호출 함수

early 레벨: early_initcall()

0 레벨: pure_initcall()

1 레벨: core_initcall()

1 레벨: early_initcall_sync()

2 레벨: postcore_initcall()

2 레벨: postcore_initcall_sync()

3 레벨: arch_initcall()

3 레벨: arch_initcall_sync()

4 레벨: subsys_initcall()

4 레벨: subsys_initcall_sync()

5 레벨: fs_initcall()

5 레벨: fs_initcall_sync()

rootfs 레벨: rootfs_initcall_sync()

__ 레벨: early_initcall_sync()

6 레벨: device_initcall_sync() 또는 module_

6 레벨: device_initcall_sync()

7 레벨: late_initcall()

7 레벨: late_initcall_sync()

참고

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