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| author | Steven Rostedt <srostedt@redhat.com> | 2010-05-14 09:29:52 -0400 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2010-05-14 09:29:52 -0400 |
| commit | 23e117fa44429cc054cb27d5621d64e4ced91e52 (patch) | |
| tree | a4b9d0902b9c6f009b2c297515221c1b9bed3af8 /arch/x86/kernel/dumpstack.h | |
| parent | 668eb65f092902eb7dd526af73d4a7f025a94612 (diff) | |
| parent | a93d2f1744206827ccf416e2cdc5018aa503314e (diff) | |
Merge branch 'sched/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip into trace/tip/tracing/core-4
Diffstat (limited to 'arch/x86/kernel/dumpstack.h')
| -rw-r--r-- | arch/x86/kernel/dumpstack.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/kernel/dumpstack.h b/arch/x86/kernel/dumpstack.h index e39e77168a37..e1a93be4fd44 100644 --- a/arch/x86/kernel/dumpstack.h +++ b/arch/x86/kernel/dumpstack.h @@ -14,6 +14,8 @@ #define get_bp(bp) asm("movq %%rbp, %0" : "=r" (bp) :) #endif +#include <linux/uaccess.h> + extern void show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs, unsigned long *stack, unsigned long bp, char *log_lvl); @@ -42,8 +44,10 @@ static inline unsigned long rewind_frame_pointer(int n) get_bp(frame); #ifdef CONFIG_FRAME_POINTER - while (n--) - frame = frame->next_frame; + while (n--) { + if (probe_kernel_address(&frame->next_frame, frame)) + break; + } #endif return (unsigned long)frame; |