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| author | Olof Johansson <olof@lixom.net> | 2007-10-12 10:20:07 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-10-12 14:05:18 +1000 |
| commit | d0c3d534a4388a465101b634a95f2ec586415254 (patch) | |
| tree | e6acdc89adcb9057b7bbaeba55332fdcb97c2ceb /arch/powerpc/kernel/traps.c | |
| parent | b63db45ca44a805ef21eb10a3750e88419156423 (diff) | |
| download | kernel_samsung_smdk4412-d0c3d534a4388a465101b634a95f2ec586415254.zip kernel_samsung_smdk4412-d0c3d534a4388a465101b634a95f2ec586415254.tar.gz kernel_samsung_smdk4412-d0c3d534a4388a465101b634a95f2ec586415254.tar.bz2 | |
[POWERPC] Implement logging of unhandled signals
Implement show_unhandled_signals sysctl + support to print when a process
is killed due to unhandled signals just as i386 and x86_64 does.
Default to having it off, unlike x86 that defaults on.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/traps.c')
| -rw-r--r-- | arch/powerpc/kernel/traps.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 2f1857c..bf9e39c 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -172,11 +172,21 @@ int die(const char *str, struct pt_regs *regs, long err) void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr) { siginfo_t info; + const char fmt32[] = KERN_INFO "%s[%d]: unhandled signal %d " \ + "at %08lx nip %08lx lr %08lx code %x\n"; + const char fmt64[] = KERN_INFO "%s[%d]: unhandled signal %d " \ + "at %016lx nip %016lx lr %016lx code %x\n"; if (!user_mode(regs)) { if (die("Exception in kernel mode", regs, signr)) return; - } + } else if (show_unhandled_signals && + unhandled_signal(current, signr) && + printk_ratelimit()) { + printk(regs->msr & MSR_SF ? fmt64 : fmt32, + current->comm, current->pid, signr, + addr, regs->nip, regs->link, code); + } memset(&info, 0, sizeof(info)); info.si_signo = signr; |