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| author |   Heiko Carstens <heiko.carstens@de.ibm.com> | 2006-12-04 15:40:47 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2006-12-04 15:40:47 +0100 |
| commit | 236257eee99a35d67d3feab0769bded83efdc3ec (patch) | |
| tree | ffdad8451122c32f030044df27e83d3c503eb23b /arch/s390 | |
| parent | [S390] Add dynamic size check for usercopy functions. (diff) | |
| download | linux-dev-236257eee99a35d67d3feab0769bded83efdc3ec.tar.xz linux-dev-236257eee99a35d67d3feab0769bded83efdc3ec.zip | |
[S390] lockdep: show held locks when showing a stackdump
Follow i386/x86_64:
lockdep can be used to print held locks when printing a
backtrace. This can be useful when debugging things like
'scheduling while atomic' asserts.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/kernel/traps.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index 475dbb884430..3cbb0dcf1f1d 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -129,7 +129,7 @@ __show_trace(unsigned long sp, unsigned long low, unsigned long high) } } -void show_trace(struct task_struct *task, unsigned long * stack) +void show_trace(struct task_struct *task, unsigned long *stack) { register unsigned long __r15 asm ("15"); unsigned long sp; @@ -151,6 +151,9 @@ void show_trace(struct task_struct *task, unsigned long * stack) __show_trace(sp, S390_lowcore.thread_info, S390_lowcore.thread_info + THREAD_SIZE); printk("\n"); + if (!task) + task = current; + debug_show_held_locks(task); } void show_stack(struct task_struct *task, unsigned long *sp) |