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. > > > > This raises two questions (at least!): > > > > 1. Is it reasonable for me to flout the packaging guidelines by > > rebuilding with -O0 until this is resolved? > > > > 2. How to determine what the actual problem is, e.g. a problem with > > the way the code is written leading to unsafe optimizations, or a > > gcc bug? > > You're just going to have to debug it. > > To start with, build with warnings, and look at them all. If none of > that works and you're stuck, I'll have a look. It already builds with -Wall and there are no warnings: http://koji.fedoraproject.org/koji/getfile?taskID=3507432&name=build.log > 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. -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
