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authorMatthias Urlichs <smurf@smurf.noris.de>2006-10-11 01:21:57 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-11 11:14:22 -0700
commitcd0810410beb86c570aeb3dcd3dc1fc5ab9e6077 (patch)
tree4a2dcbf9b0e66a9aef69a94bf0d6ce8c7fe1fee8
parent01a3ee2b203e511e20f98b85a9172fd32c53e87c (diff)
downloadop-kernel-dev-cd0810410beb86c570aeb3dcd3dc1fc5ab9e6077.zip
op-kernel-dev-cd0810410beb86c570aeb3dcd3dc1fc5ab9e6077.tar.gz
[PATCH] document the core-dump-to-a-pipe patch
The pipe-a-coredump-to-a-program feature was undocumented. *Grumble*. NB: a good enhancement to that patch would be: save all the stuff that a core file can get from the %x expansions in the environment. Signed-off-by: Matthias Urlichs <matthias@urlichs.de> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--Documentation/sysctl/kernel.txt5
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index 89bf8c2..0bc7f1e 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -86,7 +86,7 @@ valid for 30 seconds.
core_pattern:
core_pattern is used to specify a core dumpfile pattern name.
-. max length 64 characters; default value is "core"
+. max length 128 characters; default value is "core"
. core_pattern is used as a pattern template for the output filename;
certain string patterns (beginning with '%') are substituted with
their actual values.
@@ -105,6 +105,9 @@ core_pattern is used to specify a core dumpfile pattern name.
%h hostname
%e executable filename
%<OTHER> both are dropped
+. If the first character of the pattern is a '|', the kernel will treat
+ the rest of the pattern as a command to run. The core dump will be
+ written to the standard input of that program instead of to a file.
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