diff options
| author |   Benjamin Berg <benjamin.berg@intel.com> | 2024-11-03 16:05:06 +0100 |
|---|---|---|
| committer |   Johannes Berg <johannes.berg@intel.com> | 2024-11-07 17:36:31 +0100 |
| commit | ce6e85a186c28ab0ca024580cba93fa19147c72b (patch) | |
| tree | dac6be1ade6734c1f5717e0ea21b5fdaff866729 /arch/um/kernel | |
| parent | um: remove duplicate UM_NSEC_PER_SEC definition (diff) | |
| download | wireguard-linux-ce6e85a186c28ab0ca024580cba93fa19147c72b.tar.xz wireguard-linux-ce6e85a186c28ab0ca024580cba93fa19147c72b.zip | |
um: remove broken double fault detection
The show_stack function had some code to detect double faults. However,
the logic is wrong and it would e.g. trigger if a WARNING happened
inside an IRQ.
Remove it without trying to add a new logic. The current behaviour,
which will just fault repeatedly until the IRQ stack is used up and the
host kills UML, seems to be good enough.
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Link: https://patch.msgid.link/20241103150506.1367695-5-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'arch/um/kernel')
| -rw-r--r-- | arch/um/kernel/sysrq.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c index 4bb8622dc512..a3bdab048617 100644 --- a/arch/um/kernel/sysrq.c +++ b/arch/um/kernel/sysrq.c @@ -32,12 +32,6 @@ void show_stack(struct task_struct *task, unsigned long *stack, struct pt_regs *segv_regs = current->thread.segv_regs; int i; - if (!segv_regs && os_is_signal_stack()) { - pr_err("Received SIGSEGV in SIGSEGV handler," - " aborting stack trace!\n"); - return; - } - if (!stack) stack = get_stack_pointer(task, segv_regs); |