On Fri, 18 Nov 2011 18:43:30 +0200 Jussi Lehtola <jussilehtola@xxxxxxxxxxxxxxxxx> wrote: > On Fri, 18 Nov 2011 16:32:23 +0000 > Paul Howarth <paul@xxxxxxxxxxxx> wrote: > > On Fri, 18 Nov 2011 15:28:27 +0000 > > Andrew Haley <aph@xxxxxxxxxx> wrote: > > > > > On 11/18/2011 11:31 AM, Paul Howarth wrote: > > > > One of my packages, pptp, suffers occasional segfaults as > > > > reported in http://bugzilla.redhat.com/749455. However, whilst > > > > investigating this, it seems to be the case that simply > > > > rebuilding the package using no optimization (-O0) as opposed to > > > > the default -O2 is enough to stop this happening. > > (clip) > > > > This is unlikely to be a gcc bug. > > > > > > Does the upstream package segfault? > > > > Upstream's Makefile uses -O0 and doesn't appear to segfault > > (probably as a result). > > > > Paul. > > .. but https://bugzilla.redhat.com/show_bug.cgi?id=749455 it's shown > that the upstream makefile uses "-Wall -O -Wuninitialized -g". > According to the gcc man page, -O is equal to -O1. Ah, I could have sworn it explicitly said "-O0". More importantly, the bug reporter now tells me that the -O0 build has now segfaulted - it just took longer to happen that way. So I'll go back to more conventional debugging now. Thanks anyway. Paul. -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
