diff options
| author | Hidehiro Kawai <[email protected]> | 2015-12-14 11:19:14 +0100 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2015-12-19 11:07:01 +0100 |
| commit | 9f318e3fcb1d4c48c26e8ca2ff2a459b82f36a23 (patch) | |
| tree | 9e55b068676f1dd21cb82666a5f767cb3fbe0411 | |
| parent | b279d67df88a49c6ca32b3eebd195660254be394 (diff) | |
Documentation: Document kernel.panic_on_io_nmi sysctl
kernel.panic_on_io_nmi sysctl was introduced by commit
5211a242d0cb ("x86: Add sysctl to allow panic on IOCK NMI error")
but its documentation is missing. So, add it.
Signed-off-by: Hidehiro Kawai <[email protected]>
Requested-by: Borislav Petkov <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Baoquan He <[email protected]>
Cc: Chris Metcalf <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Heinrich Schuchardt <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Kosina <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: Manfred Spraul <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Nicolas Iooss <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Seth Jennings <[email protected]>
Cc: Steven Rostedt <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Ulrich Obergfell <[email protected]>
Cc: Vivek Goyal <[email protected]>
Cc: x86-ml <[email protected]>
Link: http://lkml.kernel.org/r/20151210014637.25437.71903.stgit@softrs
Signed-off-by: Borislav Petkov <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
| -rw-r--r-- | Documentation/sysctl/kernel.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index af70d1541d3a..73c6b1ef0e84 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -551,6 +551,21 @@ the recommended setting is 60. ============================================================== +panic_on_io_nmi: + +Controls the kernel's behavior when a CPU receives an NMI caused by +an IO error. + +0: try to continue operation (default) + +1: panic immediately. The IO error triggered an NMI. This indicates a + serious system condition which could result in IO data corruption. + Rather than continuing, panicking might be a better choice. Some + servers issue this sort of NMI when the dump button is pushed, + and you can use this option to take a crash dump. + +============================================================== + panic_on_oops: Controls the kernel's behaviour when an oops or BUG is encountered. |