On Thu, Nov 28, 2013 at 4:55 AM, Ilia Mirkin <imir...@alum.mit.edu> wrote: > On Thu, Nov 28, 2013 at 4:38 AM, Ilia Mirkin <imir...@alum.mit.edu> wrote: >> Hi Brian, >> >> I've just completed a bisect which pointed out a3ed98f7aa (gallium: >> new, unified pipe_context::set_sampler_views() function) as the bad >> commit. >> >> Starting with that commit, I see things like >> >> *** glibc detected *** glretrace: corrupted double-linked list: >> 0x00000000016632f0 *** >> >> but it can also be >> >> *** glibc detected *** glretrace: free(): invalid pointer: >> 0x0000000001cb0130 *** >> >> and also plain ol' segfaults. I'm on a nv98 card, using the nv50 >> driver. I had to manually patch it with the equivalent of c1345720c866 >> (except I just hard-coded it to 16) in order to avoid the assert. >> However I also get segfaults with llvmpipe. I'm using gcc-4.7.3 in >> case it matters. > > BTW, it should be worth noting that llvmpipe does seem to work at HEAD > (although it fails reliably for me at the commit I mentioned). I can > do a "reverse" bisect to figure out when things got better for it, but > I'm guessing that things just got jumbled around s.t. the memory > stomping is no longer over a critical area. > >> >> My reproducer is running glretrace on the portal.trace file that you >> can obtain from https://bugs.freedesktop.org/show_bug.cgi?id=64323#c1. >> I was not able to repro using random other traces I had sitting >> around, so I'm guessing something in that trace is triggering the >> erring functionality. The crashes always happen in >> dri_destroy_context/st_destroy_context, but that doesn't mean that >> trouble doesn't happen earlier on. >> >> Any ideas? >> >> -ilia
I take it back. I think 95bd8a332d1 is responsible -- see my latest e-mail for the details. Your commit probably just moved a few things around to make it crash more reliably with the trace I was using. -ilia _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
