Fixed already
https://ozlabs.org/~akpm/mmots/broken-out/panic-dont-dump-stack-twice-on-warn.patch
Sorry for breaking this :(
On 13/11/2020 16:47, Kefeng Wang wrote:
stacktrace will be dumped twice on ARM64 after commit 3f388f28639f
("panic: dump registers on panic_on_warn"), will not dump_stack
when no regs as before.
Fixes: 3f388f28639f ("panic: dump registers on panic_on_warn")
Signed-off-by: Kefeng Wang <wangkefeng.w...@huawei.com>
---
kernel/panic.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/panic.c b/kernel/panic.c
index 396142ee43fd..332736a72a58 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -605,7 +605,8 @@ void __warn(const char *file, int line, void *caller,
unsigned taint,
panic("panic_on_warn set ...\n");
}
- dump_stack();
+ if (!regs)
+ dump_stack();
print_irqtrace_events(current);
--
Alexey
