From 134d16b3d3eb983e2de6f803b107600bb8198e46 Mon Sep 17 00:00:00 2001
From: Steve Murphy <murf@digium.com>
Date: Tue, 31 Jul 2007 21:33:37 +0000
Subject: [PATCH] Merged revisions 77844 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4
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r77844 | murf | 2007-07-31 14:59:10 -0600 (Tue, 31 Jul 2007) | 9 lines
Merged revisions 77842 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.2
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r77842 | murf | 2007-07-31 13:19:35 -0600 (Tue, 31 Jul 2007) | 1 line
This probably isn't super-general, but it's a first stab at using kill -11 to generate a core file instead of gcore.
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@77847 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
contrib/scripts/ast_grab_core | 27 +++++++++++++++++----------
1 file changed, 17 insertions(+), 10 deletions(-)
diff --git a/contrib/scripts/ast_grab_core b/contrib/scripts/ast_grab_core
index dde246959d..b2bd7b2eda 100644
--- a/contrib/scripts/ast_grab_core
+++ b/contrib/scripts/ast_grab_core
@@ -3,8 +3,19 @@
# lame quickie script to snarf a core of a hung asterisk process.
# bugs to ast_grab_core, blinky-lights.org (derrick daugherty)
+# we have found that gcore doesn't yield as useful a core file
+# as that yielded by a signal-caused core dump. So we are going to change
+# the strategy to sending a SEGV signal to the asterisk process,
+# and have it 'burn to the ground', leaving behind a core file.
+# the main difference is that you cannot control where the
+# core file will end up. We will assume that safe_asterisk was
+# used to start asterisk, and the core file should therefore end
+# up in /tmp (because safe_asterisk cd's there before starting asterisk).
+# if this is not the case, set DUMPDIR to the place where the core
+# file can be found.
+
DATE=`date +%Y%m%d%H%M`
-DUMPDIR=/var/tmp
+DUMPDIR=/tmp
HOSTNAME=`hostname`
ADMINEMAIL="root@localhost"
@@ -27,20 +38,16 @@ echo \*\*\* WARNING \*\*\* If the system is not already locked this will cause
echo \*\*\* WARNING \*\*\* process to STOP while memory is dumped to disk.
echo
-/usr/bin/gdb > /dev/null << EOF
- attach ${PID}
- gcore ${DUMPDIR}/asterisk_${DATE}.core.${PID}
- detach
- quit
-EOF
+/bin/kill -11 ${PID}
-echo Snarfed! ${DUMPDIR}/asterisk_${DATE}.core.${PID}
+echo Snarfed! ${DUMPDIR}/core.${PID}
echo
echo Trying for a backtrace of the captured core.
-/usr/bin/gdb /usr/sbin/asterisk ${DUMPDIR}/asterisk_${DATE}.core.${PID} > ${DUMPDIR}/gdb_dump.${PID}.txt 2> /dev/null << EOF
+/usr/bin/gdb /usr/sbin/asterisk ${DUMPDIR}/core.${PID} > ${DUMPDIR}/gdb_dump.${PID}.txt 2> /dev/null << EOF
set prompt \n
+set print pretty\n
echo --------------------------------------------------------------------------------\n
echo INFO THREAD
info thread
@@ -56,7 +63,7 @@ echo Done trying for a bt.
echo Notifying admins of the core.
-/usr/bin/mail -s "${HOSTNAME} core dumped at ${DUMPDIR}/asterisk_${DATE}.core.${PID}" ${ADMINEMAIL} < /tmp/gdb_dump.${PID}
+/usr/bin/mail -s "${HOSTNAME} core dumped at ${DUMPDIR}/core.${PID}" ${ADMINEMAIL} < ${DUMPDIR}/gdb_dump.${PID}.txt
echo Done.
echo
echo Reproducible deadlocks should be posted with a full backtrace and instructions
--
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