函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\cpu\mce\core.c Create Date:2022-07-27 09:01:16
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Cases where we avoid rendezvous handler timeout:* 1) If this CPU is offline

函数原型：static bool __mc_check_crashing_cpu(int cpu)

返回类型：bool

参数：

类型参数名称
intcpu
1130  如果cpu_is_offline(cpu)或crashing_cpu不等于负1且crashing_cpu不等于cpu则
1134  mcgstatus等于MSR access wrappers used for error injection
1136  如果CPU vendor 恒等于X86_VENDOR_ZHAOXIN则
1137  如果mcgstatus按位与LMCE signaled 则返回:false
1141  如果mcgstatus按位与start ip valid 则
1142  mce_wrmsrl(MSR_IA32_MCG_STATUS, 0)
1143  返回:true
1146  返回:false
调用者
名称描述
do_machine_checkThe actual machine check handler. This only handles real* exceptions when something got corrupted coming in through int 18.* This is executed in NMI context not subject to normal locking rules. This* implies that most kernel services cannot be safely used