id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	os	architecture	failure	difficulty	testcase	blockedby	blocking	related
1980	sporadic segmentation faults	maeder	igloo	"Our big interactive hets application sometimes produces segmentation faults that are hard to reproduce. They happened before with ghc-6.6.1 and ghc-6.8.1 and I was able to get gdb output and output when compiled with -debug (and some RTS flag when calling):

http://trac.informatik.uni-bremen.de:8080/hets/ticket/448#comment:4
http://trac.informatik.uni-bremen.de:8080/hets/ticket/448#comment:9

Maybe the linux kernel plays a role:
{{{
Linux leibniz 2.6.18.8-0.5-default #1 SMP Fri Jun 22 12:17:53 UTC 2007 i686 i686 i386 GNU/Linux
gcc (GCC) 4.1.2 20061115 (prerelease) (SUSE Linux)
}}}

For ghc-6.8.2 I could also reproduce segmentation faults, but they somehow disappear after a couple of retries.

However installing prerequisites, building, and calling our hets application is not a trivial task.

http://trac.informatik.uni-bremen.de:8080/hets/wiki/HetsForDevelopers
http://www.dfki.de/sks/hets/src-distribution/versions/Hets/INSTALL

Does anybody have suggestions what we might try or ideas about the reason?

Regards Christian"	merge	closed	normal	6.8.3	Runtime System	6.8.2	fixed			Unknown/Multiple	Unknown/Multiple		Unknown