diff options
Diffstat (limited to 'arch/powerpc/kernel/traps.c')
| -rw-r--r-- | arch/powerpc/kernel/traps.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 5459d148a0f6..91377870b26a 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -158,6 +158,8 @@ int die(const char *str, struct pt_regs *regs, long err) bust_spinlocks(0); die.lock_owner = -1; add_taint(TAINT_DIE); + oops_exit(); + printk("\n"); raw_spin_unlock_irqrestore(&die.lock, flags); if (kexec_should_crash(current) || @@ -165,13 +167,23 @@ int die(const char *str, struct pt_regs *regs, long err) crash_kexec(regs); crash_kexec_secondary(regs); + /* + * While our oops output is serialised by a spinlock, output + * from panic() called below can race and corrupt it. If we + * know we are going to panic, delay for 1 second so we have a + * chance to get clean backtraces from all CPUs that are oopsing. + */ + if (in_interrupt() || panic_on_oops || !current->pid || + is_global_init(current)) { + mdelay(MSEC_PER_SEC); + } + if (in_interrupt()) panic("Fatal exception in interrupt"); if (panic_on_oops) panic("Fatal exception"); - oops_exit(); do_exit(err); return 0; |