The patch titled
Subject: panic: don't print redundant backtraces on oops
has been added to the -mm tree. Its filename is
panic-dont-print-redundant-backtraces-on-oops.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
From: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Subject: panic: don't print redundant backtraces on oops
When an oops causes a panic and panic prints another backtrace it's pretty
common to have the original oops data be scrolled away on a 80x50 screen.
The second backtrace is quite redundant and not needed anyways.
So don't print the panic backtrace when oops_in_progress is true.
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Michael Holzheu <holzheu@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/panic.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN kernel/panic.c~panic-dont-print-redundant-backtraces-on-oops kernel/panic.c
--- a/kernel/panic.c~panic-dont-print-redundant-backtraces-on-oops
+++ a/kernel/panic.c
@@ -94,7 +94,8 @@ void panic(const char *fmt, ...)
va_end(args);
printk(KERN_EMERG "Kernel panic - not syncing: %s\n",buf);
#ifdef CONFIG_DEBUG_BUGVERBOSE
- dump_stack();
+ if (!oops_in_progress)
+ dump_stack();
#endif
/*
_
Subject: Subject: panic: don't print redundant backtraces on oops
Patches currently in -mm which might be from ak@xxxxxxxxxxxxxxx are
linux-next.patch
brlocks-lglocks-clean-up-code.patch
brlocks-lglocks-clean-up-code-checkpatch-fixes.patch
panic-dont-print-redundant-backtraces-on-oops.patch
panic-dont-print-redundant-backtraces-on-oops-fix.patch
vfs-cache-request_queue-in-struct-block_device.patch
dio-optimize-cache-misses-in-the-submission-path-v2.patch
dio-optimize-cache-misses-in-the-submission-path-v2-checkpatch-fixes.patch
dio-optimize-cache-misses-in-the-submission-path-v2-fix.patch
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