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authorLinus Torvalds <torvalds@woody.osdl.org>2006-12-15 08:43:13 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-15 08:47:51 -0800
commitd1526e2cda64d5a1de56aef50bad9e5df14245c2 (patch)
treed7b490b1a11dd9720c9918733ca0c06e0e82cfba /lib/fault-inject.c
parentd1998ef38a13c4e74c69df55ccd38b0440c429b2 (diff)
downloadlinux-linaro-stable-d1526e2cda64d5a1de56aef50bad9e5df14245c2.tar.gz
Remove stack unwinder for now
It has caused more problems than it ever really solved, and is apparently not getting cleaned up and fixed. We can put it back when it's stable and isn't likely to make warning or bug events worse. In the meantime, enable frame pointers for more readable stack traces. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'lib/fault-inject.c')
-rw-r--r--lib/fault-inject.c32
1 files changed, 1 insertions, 31 deletions
diff --git a/lib/fault-inject.c b/lib/fault-inject.c
index d143c0faf248..b5a90fc056d3 100644
--- a/lib/fault-inject.c
+++ b/lib/fault-inject.c
@@ -55,37 +55,7 @@ static bool fail_task(struct fault_attr *attr, struct task_struct *task)
#define MAX_STACK_TRACE_DEPTH 32
-#ifdef CONFIG_STACK_UNWIND
-
-static asmlinkage int fail_stacktrace_callback(struct unwind_frame_info *info,
- void *arg)
-{
- int depth;
- struct fault_attr *attr = arg;
- bool found = (attr->require_start == 0 && attr->require_end == ULONG_MAX);
-
- for (depth = 0; depth < attr->stacktrace_depth
- && unwind(info) == 0 && UNW_PC(info); depth++) {
- if (arch_unw_user_mode(info))
- break;
- if (attr->reject_start <= UNW_PC(info) &&
- UNW_PC(info) < attr->reject_end)
- return false;
- if (attr->require_start <= UNW_PC(info) &&
- UNW_PC(info) < attr->require_end)
- found = true;
- }
- return found;
-}
-
-static bool fail_stacktrace(struct fault_attr *attr)
-{
- struct unwind_frame_info info;
-
- return unwind_init_running(&info, fail_stacktrace_callback, attr);
-}
-
-#elif defined(CONFIG_STACKTRACE)
+#if defined(CONFIG_STACKTRACE)
static bool fail_stacktrace(struct fault_attr *attr)
{