nmi_panic

Name:A variant of panic() called from NMI context. We return if we've already* panicked on this CPU. If another CPU already panicked, loop in* nmi_panic_self_stop() which can provide architecture dependent code such* as saving register state for crash dump.

Proto:void nmi_panic(struct pt_regs *regs, const char *msg)

Type:void

Parameter:

Type	Parameter	Name
struct pt_regs *	regs
const char *	msg

128

cpu = These macros fold the SMP functionality into a single CPU system()

129

old_cpu = atomic_cmpxchg( & panic_cpu, PANIC_CPU_INVALID, cpu)

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If old_cpu == PANIC_CPU_INVALID Then panic - halt the system*@fmt: The text string to print* Display a message, then perform cleanups.* This function never returns.

133

Else if old_cpu != cpu Then Stop ourselves in NMI context if another CPU has already panicked. Arch code* may override this to prepare for crash dumping, e.g. save regs info.

**Caller**
Name	Describe
io_check_error
unknown_nmi_error
watchdog_overflow_callback	Callback function for perf event subsystem

Source code conversion tool public plug-in interface	X
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Function report