| Message ID | 20180801213320.11203-7-muriloo@linux.ibm.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | a99b9c5ed43ecfff5c47c558cc0fcbf8c6503f4c |
| Headers | show |
| Series | powerpc: Modernize unhandled signals message | expand |
| Context | Check | Description |
|---|---|---|
| snowpatch_ozlabs/apply_patch | success | next/apply_patch Successfully applied |
| snowpatch_ozlabs/checkpatch | warning | Test checkpatch on branch next |
| snowpatch_ozlabs/build-ppc64le | warning | Test build-ppc64le on branch next |
| snowpatch_ozlabs/build-ppc64be | warning | Test build-ppc64be on branch next |
| snowpatch_ozlabs/build-ppc64e | warning | Test build-ppc64e on branch next |
| snowpatch_ozlabs/build-ppc32 | warning | Test build-ppc32 on branch next |
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index bcefbb1ee771..8494b0ff4904 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -70,6 +70,7 @@ #include <asm/hmi.h> #include <sysdev/fsl_pci.h> #include <asm/kprobes.h> +#include <asm/stacktrace.h> #if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC_CORE) int (*__debugger)(struct pt_regs *regs) __read_mostly; @@ -337,6 +338,8 @@ static void show_signal_msg(int signr, struct pt_regs *regs, int code, print_vma_addr(KERN_CONT " in ", regs->nip); pr_cont("\n"); + + show_user_instructions(regs); } void _exception_pkey(int signr, struct pt_regs *regs, int code,
Call show_user_instructions() in arch/powerpc/kernel/traps.c to dump instructions at faulty location, useful to debugging. Before this patch, an unhandled signal message looked like: pandafault[10524]: segfault (11) at 100007d0 nip 1000061c lr 7fffbd295100 code 2 in pandafault[10000000+10000] After this patch, it looks like: pandafault[10524]: segfault (11) at 100007d0 nip 1000061c lr 7fffbd295100 code 2 in pandafault[10000000+10000] pandafault[10524]: code: 4bfffeec 4bfffee8 3c401002 38427f00 fbe1fff8 f821ffc1 7c3f0b78 3d22fffe pandafault[10524]: code: 392988d0 f93f0020 e93f0020 39400048 <99490000> 39200000 7d234b78 383f0040 Signed-off-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com> --- arch/powerpc/kernel/traps.c | 3 +++ 1 file changed, 3 insertions(+)