函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\kexec_core.c Create Date:2022-07-27 12:04:28
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：No panic_cpu check version of crash_kexec(). This function is called* only when panic_cpu holds the current CPU number; this is the only CPU* which processes crash_kexec routines.

函数原型：void __noclone __crash_kexec(struct pt_regs *regs)

返回类型：void

参数：

类型参数名称
struct pt_regs *regs
948  如果mutex_trylock - try to acquire the mutex, without waiting*@lock: the mutex to be acquired* Try to acquire the mutex atomically则
949  如果kexec_crash_image则
952  This function is responsible for capturing register states if coming* via panic otherwise just fix up the ss and sp if coming via kernel* mode exception.
953  crash_save_vmcoreinfo()
954  machine_crash_shutdown( & fixed_regs)
955  Do not allocate memory (or fail in any way) in machine_kexec().* We are past the point of no return, committed to rebooting now.
957  mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.
调用者
名称描述
panicpanic - halt the system*@fmt: The text string to print* Display a message, then perform cleanups.* This function never returns.
crash_kexec