Hello Current linux-2.6 tree panics on my dev machine 64 bit kernel, 32bit user land CONFIG_FRAME_POINTER=y perf timechart record & Instant crash Call Trace: perf_trace_sched_switch+0xd5/0x120 schedule+0x6b5/0x860 retint_careful+0xd/0x21 RIP ffffffff81010955 perf_arch_fetch_caller_regs+0x15/0x40 CR2: 00000000d21f1422 rewind_frame_pointer() is probably wrong. No test performed to check frame is in current stack, or that (!user_mode_vm(regs)) static inline unsigned long rewind_frame_pointer(int n) { struct stack_frame *frame; get_bp(frame); #ifdef CONFIG_FRAME_POINTER while (n--) frame = frame->next_frame; #endif return (unsigned long)frame; } -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html