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| author |   Andi Kleen <ak@suse.de> | 2006-09-26 10:52:34 +0200 |
|---|---|---|
| committer |   Andi Kleen <andi@basil.nowhere.org> | 2006-09-26 10:52:34 +0200 |
| commit | 950fee84557416a3427dd404a13addc4be7b3e6c (patch) | |
| tree | 8deea7e7c6d4a57bb1970f0dcb9afa387a74729c /arch/i386/kernel/traps.c | |
| parent | [PATCH] i386: Do stacktracer conversion too (diff) | |
| download | linux-dev-950fee84557416a3427dd404a13addc4be7b3e6c.tar.xz linux-dev-950fee84557416a3427dd404a13addc4be7b3e6c.zip | |
[PATCH] i386: Terminate backtrace fallback early if unwinder stack pointer is zero
Cc: jbeulich@novell.com
Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch/i386/kernel/traps.c')
| -rw-r--r-- | arch/i386/kernel/traps.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 4ced4285163b..86fa7e47f301 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -197,6 +197,8 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, if (UNW_SP(&info) >= PAGE_OFFSET) { ops->warning(data, "Leftover inexact backtrace:\n"); stack = (void *)UNW_SP(&info); + if (!stack) + return; } else ops->warning(data, "Full inexact backtrace again:\n"); } else if (call_trace >= 1) |