svn commit: r254992 - head/etc/rc.d

[Gavin Atkinson]

Author: gavin
Date: Wed Aug 28 15:12:15 2013
New Revision: 254992
URL: http://svnweb.freebsd.org/changeset/base/254992

Log:
  After writing a kernel core dump into /var/crash, call sync(8).
  
  If we panic again shortly after boot (say, within 30 seconds), any core
  dump we wrote out may be lost on reboot.  In this situation, we really
  want to keep that core file, as it may be the only way to have the issue
  resolved.  Call sync(8) after writing out the core file and running
  crashinfo(8), in the hope that these will not be lost if we panic
  again.  sync(8) is only called in the case where there is a core dump
  to be written out, so won't be called during normal boots.
  
  Discovered by:	Trying to debug an IPSEC panic
  MFC after:	1 week

Modified:
  head/etc/rc.d/savecore

Modified: head/etc/rc.d/savecore
==============================================================================
--- head/etc/rc.d/savecore	Wed Aug 28 14:49:36 2013	(r254991)
+++ head/etc/rc.d/savecore	Wed Aug 28 15:12:15 2013	(r254992)
@@ -70,6 +70,7 @@ savecore_start()
 		if checkyesno crashinfo_enable; then
 			${crashinfo_program} -d ${dumpdir}
 		fi
+		sync
 	else
 		check_startmsgs && echo 'No core dumps found.'
 	fi