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| author |   Alexander van Heukelum <heukelum@fastmail.fm> | 2008-10-04 23:12:43 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-10-13 10:33:42 +0200 |
| commit | 2ac53721f37c79acddaf60f6ff232f56b7abddba (patch) | |
| tree | 56075afcaf1245c78e66ea7489f78cc1fbd3dd55 /arch/x86/kernel/dumpstack_32.c | |
| parent | dumpstack: x86: add "end" parameter to valid_stack_ptr and print_context_stack (diff) | |
| download | linux-dev-2ac53721f37c79acddaf60f6ff232f56b7abddba.tar.xz linux-dev-2ac53721f37c79acddaf60f6ff232f56b7abddba.zip | |
dumptrace: x86: consistently include loglevel, print stack switch
- i386 and x86_64: always printk the 'data' parameter
- i386: announce stack switch (irq -> normal)
- i386: check if there is a stack switch before announcing it
There is a warning that 'context' might come out corrupt in early
boot. If this is true it should be fixed, not worked around.
Signed-off-by: Alexander van Heukelum <heukelum@fastmail.fm>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/dumpstack_32.c')
| -rw-r--r-- | arch/x86/kernel/dumpstack_32.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c index 466d55dfeb87..517b507bc56a 100644 --- a/arch/x86/kernel/dumpstack_32.c +++ b/arch/x86/kernel/dumpstack_32.c @@ -104,16 +104,12 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, context = (struct thread_info *) ((unsigned long)stack & (~(THREAD_SIZE - 1))); bp = print_context_stack(context, stack, bp, ops, data, NULL); - /* - * Should be after the line below, but somewhere - * in early boot context comes out corrupted and we - * can't reference it: - */ - if (ops->stack(data, "IRQ") < 0) - break; + stack = (unsigned long *)context->previous_esp; if (!stack) break; + if (ops->stack(data, "IRQ") < 0) + break; touch_nmi_watchdog(); } } @@ -134,6 +130,7 @@ static void print_trace_warning(void *data, char *msg) static int print_trace_stack(void *data, char *name) { + printk("%s <%s> ", (char *)data, name); return 0; } @@ -142,11 +139,9 @@ static int print_trace_stack(void *data, char *name) */ static void print_trace_address(void *data, unsigned long addr, int reliable) { - printk("%s [<%08lx>] ", (char *)data, addr); - if (!reliable) - printk("? "); - print_symbol("%s\n", addr); touch_nmi_watchdog(); + printk(data); + printk_address(addr, reliable); } static const struct stacktrace_ops print_trace_ops = { |