diff options
Diffstat (limited to 'lib/nmi_backtrace.c')
| -rw-r--r-- | lib/nmi_backtrace.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/lib/nmi_backtrace.c b/lib/nmi_backtrace.c index 9813a983d024..f9e89001b52e 100644 --- a/lib/nmi_backtrace.c +++ b/lib/nmi_backtrace.c @@ -89,22 +89,22 @@ bool nmi_cpu_backtrace(struct pt_regs *regs) unsigned long flags; if (cpumask_test_cpu(cpu, to_cpumask(backtrace_mask))) { + /* + * Allow nested NMI backtraces while serializing + * against other CPUs. + */ + printk_cpu_lock_irqsave(flags); if (!READ_ONCE(backtrace_idle) && regs && cpu_in_idle(instruction_pointer(regs))) { pr_warn("NMI backtrace for cpu %d skipped: idling at %pS\n", cpu, (void *)instruction_pointer(regs)); } else { - /* - * Allow nested NMI backtraces while serializing - * against other CPUs. - */ - printk_cpu_lock_irqsave(flags); pr_warn("NMI backtrace for cpu %d\n", cpu); if (regs) show_regs(regs); else dump_stack(); - printk_cpu_unlock_irqrestore(flags); } + printk_cpu_unlock_irqrestore(flags); cpumask_clear_cpu(cpu, to_cpumask(backtrace_mask)); return true; } |