On Mon, 5 Nov 2012 08:40:38 +0000 Dave Airlie <airlied@xxxxxxxxx> wrote: > On Mon, Nov 5, 2012 at 8:29 AM, Antonio Ospite <ospite@xxxxxxxxxxxxxxxxx> wrote: > > On Mon, 29 Oct 2012 23:16:24 +0100 > > Antonio Ospite <ospite@xxxxxxxxxxxxxxxxx> wrote: > > > >> Hi, > >> > >> I am experiencing a bug with nouveau with linux-3.7-rc3 (and since rc1), > >> my video adapter is the one integrated on the MSI M3N78-VM motherboard > >> (hence x86_64): > >> > > [...] > >> [ 1943.858601] BUG: unable to handle kernel paging request at fffffffffffffff8 > >> [ 1943.858669] IP: [<ffffffffa031a67a>] nouveau_mm_head+0x30/0x127 [nouveau] > >> [ 1943.858779] PGD 160d067 PUD 160e067 PMD 0 > >> [ 1943.858803] Oops: 0000 [#1] SMP > > [..] > >> [ 1943.860018] Call Trace: > >> [ 1943.860019] [<ffffffff810fa13d>] ? kmem_cache_alloc_trace+0xbf/0xcf > >> [ 1943.860019] [<ffffffff81060f13>] ? should_resched+0x5/0x23 > >> [ 1943.860019] [<ffffffffa032a10a>] ? nv50_fb_vram_new+0xc5/0x1f2 [nouveau] > > > > Ben, I cannot reproduce the crash with 3.7-rc4, I spotted commits > > a7dbf00 and 5cad16a which seem to be related to the problem I was > > having; would you mind elaborating a bit about what you think was > > causing the crash on my side? Maybe the chipset used on this motherboard > > doesn't support some feature? And how did you figured out from the logs? > > > > 5cad16acd25b16681a060d28d10eeacf98d07701 is the actual fix > > The chipset hasn't got Z compression support, and the oops once decoded pointed > out the new code was trying to allocate Z tags from a NULL memory block. The old > code use to allocate an empty memory block instead of NULL, and it got > lost in the > rewrite, Ben just fixed it to allow empty memory blocks again. > > Dave. > Thanks a lot for the explanation. Regards, Antonio -- Antonio Ospite http://ao2.it A: Because it messes up the order in which people normally read text. See http://en.wikipedia.org/wiki/Posting_style Q: Why is top-posting such a bad thing? _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
