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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-05 18:33:27 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-05 18:33:27 -0500
commit6ec22f9b037fc0c2e00ddb7023fad279c365324d (patch)
tree4da7e3b3c0213317dd17c6535876171865e24315 /arch/x86/kernel/dumpstack_32.c
parent83be7d764dc4b860712e392197ec27645f9d74a8 (diff)
parent9b3660a55a9052518c91cc7c62d89e22f3f6f490 (diff)
Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Limit number of per cpu TSC sync messages x86: dumpstack, 64-bit: Disable preemption when walking the IRQ/exception stacks x86: dumpstack: Clean up the x86_stack_ids[][] initalization and other details x86, cpu: mv display_cacheinfo -> cpu_detect_cache_sizes x86: Suppress stack overrun message for init_task x86: Fix cpu_devs[] initialization in early_cpu_init() x86: Remove CPU cache size output for non-Intel too x86: Minimise printk spew from per-vendor init code x86: Remove the CPU cache size printk's cpumask: Avoid cpumask_t in arch/x86/kernel/apic/nmi.c x86: Make sure we also print a Code: line for show_regs()
Diffstat (limited to 'arch/x86/kernel/dumpstack_32.c')
-rw-r--r--arch/x86/kernel/dumpstack_32.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
index f7dd2a7c3bf..e0ed4c7abb6 100644
--- a/arch/x86/kernel/dumpstack_32.c
+++ b/arch/x86/kernel/dumpstack_32.c
@@ -10,9 +10,9 @@
10#include <linux/module.h> 10#include <linux/module.h>
11#include <linux/ptrace.h> 11#include <linux/ptrace.h>
12#include <linux/kexec.h> 12#include <linux/kexec.h>
13#include <linux/sysfs.h>
13#include <linux/bug.h> 14#include <linux/bug.h>
14#include <linux/nmi.h> 15#include <linux/nmi.h>
15#include <linux/sysfs.h>
16 16
17#include <asm/stacktrace.h> 17#include <asm/stacktrace.h>
18 18
@@ -35,6 +35,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
35 35
36 if (!stack) { 36 if (!stack) {
37 unsigned long dummy; 37 unsigned long dummy;
38
38 stack = &dummy; 39 stack = &dummy;
39 if (task && task != current) 40 if (task && task != current)
40 stack = (unsigned long *)task->thread.sp; 41 stack = (unsigned long *)task->thread.sp;
@@ -57,8 +58,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs,
57 58
58 context = (struct thread_info *) 59 context = (struct thread_info *)
59 ((unsigned long)stack & (~(THREAD_SIZE - 1))); 60 ((unsigned long)stack & (~(THREAD_SIZE - 1)));
60 bp = print_context_stack(context, stack, bp, ops, 61 bp = print_context_stack(context, stack, bp, ops, data, NULL, &graph);
61 data, NULL, &graph);
62 62
63 stack = (unsigned long *)context->previous_esp; 63 stack = (unsigned long *)context->previous_esp;
64 if (!stack) 64 if (!stack)
@@ -72,7 +72,7 @@ EXPORT_SYMBOL(dump_trace);
72 72
73void 73void
74show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs, 74show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
75 unsigned long *sp, unsigned long bp, char *log_lvl) 75 unsigned long *sp, unsigned long bp, char *log_lvl)
76{ 76{
77 unsigned long *stack; 77 unsigned long *stack;
78 int i; 78 int i;
@@ -156,4 +156,3 @@ int is_valid_bugaddr(unsigned long ip)
156 156
157 return ud2 == 0x0b0f; 157 return ud2 == 0x0b0f;
158} 158}
159