diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-21 22:00:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-21 22:00:12 -0700 |
| commit | 9956c1120826bce3b42093099a0149b7f62d0b8a (patch) | |
| tree | b34de8b27596555be2a84629973d4a692db42c73 /arch/sparc64/kernel/stacktrace.c | |
| parent | 78b58e549a3098a8c1408d0214bd25e5d5e7a3a3 (diff) | |
| parent | ada44a0430fdd00b3f38aad0aa518e97cb760bd0 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Prevent stack backtrace false positives on trap frames.
sparc64: Fix stack tracing through trap frames.
sparc64: Fix kernel thread stack termination.
sunhv: Fix locking in non-paged I/O case.
Diffstat (limited to 'arch/sparc64/kernel/stacktrace.c')
| -rw-r--r-- | arch/sparc64/kernel/stacktrace.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/sparc64/kernel/stacktrace.c b/arch/sparc64/kernel/stacktrace.c index 01b52f561af..c73ce3f4197 100644 --- a/arch/sparc64/kernel/stacktrace.c +++ b/arch/sparc64/kernel/stacktrace.c @@ -19,7 +19,7 @@ void save_stack_trace(struct stack_trace *trace) fp = ksp + STACK_BIAS; thread_base = (unsigned long) tp; do { - struct reg_window *rw; + struct sparc_stackf *sf; struct pt_regs *regs; unsigned long pc; @@ -28,15 +28,17 @@ void save_stack_trace(struct stack_trace *trace) fp >= (thread_base + THREAD_SIZE)) break; - rw = (struct reg_window *) fp; - regs = (struct pt_regs *) (rw + 1); + sf = (struct sparc_stackf *) fp; + regs = (struct pt_regs *) (sf + 1); if ((regs->magic & ~0x1ff) == PT_REGS_MAGIC) { + if (!(regs->tstate & TSTATE_PRIV)) + break; pc = regs->tpc; fp = regs->u_regs[UREG_I6] + STACK_BIAS; } else { - pc = rw->ins[7]; - fp = rw->ins[6] + STACK_BIAS; + pc = sf->callers_pc; + fp = (unsigned long)sf->fp + STACK_BIAS; } if (trace->skip > 0) |