From d0c3d534a4388a465101b634a95f2ec586415254 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Fri, 12 Oct 2007 10:20:07 +1000 Subject: [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 Signed-off-by: Paul Mackerras --- arch/powerpc/kernel/traps.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'arch/powerpc/kernel/traps.c') diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 2f1857c9819f..bf9e39c6e296 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; -- cgit v1.2.3