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| author | Daniel Thompson <daniel.thompson@linaro.org> | 2014-11-06 15:32:13 +0000 |
|---|---|---|
| committer | Jason Wessel <jason.wessel@windriver.com> | 2015-02-19 12:39:02 -0600 |
| commit | 5454388113938d9592d6a6d5424469014da4ee86 (patch) | |
| tree | 0765c2a49d358edb97bd170f29dc90904e990b5b /kernel | |
| parent | f7d4ca8bbfda23b4f1eae9b6757ff64166b093d5 (diff) | |
| download | lwn-5454388113938d9592d6a6d5424469014da4ee86.tar.gz lwn-5454388113938d9592d6a6d5424469014da4ee86.zip | |
kdb: Remove stack dump when entering kgdb due to NMI
Issuing a stack dump feels ergonomically wrong when entering due to NMI.
Entering due to NMI is normally a reaction to a user request, either the
NMI button on a server or a "magic knock" on a UART. Therefore the
backtrace behaviour on entry due to NMI should be like SysRq-g (no stack
dump) rather than like oops.
Note also that the stack dump does not offer any information that
cannot be trivial retrieved using the 'bt' command.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/debug/kdb/kdb_main.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c index 60f6bb817f70..0a22f455060a 100644 --- a/kernel/debug/kdb/kdb_main.c +++ b/kernel/debug/kdb/kdb_main.c @@ -1247,7 +1247,6 @@ static int kdb_local(kdb_reason_t reason, int error, struct pt_regs *regs, kdb_printf("due to NonMaskable Interrupt @ " kdb_machreg_fmt "\n", instruction_pointer(regs)); - kdb_dumpregs(regs); break; case KDB_REASON_SSTEP: case KDB_REASON_BREAK: |