On Sun, Feb 16, 2014 at 2:15 PM, Rafał Miłecki <zajec5@xxxxxxxxx> wrote: > 2014-02-16 19:55 GMT+01:00 Ilia Mirkin <imirkin@xxxxxxxxxxxx>: >> On Sun, Feb 16, 2014 at 10:17 AM, Rafał Miłecki <zajec5@xxxxxxxxx> wrote: >>> 2014-02-11 11:41 GMT+01:00 Ilia Mirkin <imirkin@xxxxxxxxxxxx>: >>>> (b) bisect. you can (almost) definitely restrict the bisect to >>>> drivers/gpu/drm/nouveau. if you have additional computational power, i >>>> would recommend looking into distcc for speeding up the compiles. it >>>> may be interesting to also try 3.6.x since 3.7 received a pretty big >>>> rewrite. but a git bisect is a lot more direct in figuring these >>>> things out :) >>>> >>>> After I watched your video, it definitely brought back memories of >>>> another bug or perhaps email on this list a while back (definitely >>>> within the past year), but unfortunately I can't quite place it :( >>> >>> I've finally bisected between 3.10 and 3.11: >>> >>> 78ae0ad403daf11cf63da86923d2b5dbeda3af8f is the first bad commit >>> commit 78ae0ad403daf11cf63da86923d2b5dbeda3af8f >>> Author: Ben Skeggs <bskeggs@xxxxxxxxxx> >>> Date: Wed Aug 21 11:30:36 2013 +1000 >>> >>> drm/nv04/disp: fix framebuffer pin refcounting >>> >>> I've booted that commit and one commit older few times. Every time I >>> booted 78ae0ad I got corruption. Every time I booted 6ff8c76 (it's the >>> earlier commit), it was OK. >> >> But I bet if you restart X, you get a backtrace, right? > > That's right. > > 78ae0ad: > Corruptions > > 6ff8c76: > WARNING: at drivers/gpu/drm/nouveau/nouveau_bo.c:151 > nouveau_bo_del_ttm+0x80/0x90 [nouveau]() > (after quiting X by "init 3") OK, as expected. And those backtraces are the fallout from a boatload of ttm changes that went into 3.10. So 3.9 should be safe for you :) So that these findings don't get lost/forgotten, mind filing a bug with your various findings as per http://nouveau.freedesktop.org/wiki/Bugs/ ? Unfortunately I have never observed your particular issue on any of my pre-nv50 cards (nv05/18/34/42/44), so there must be some special component. Perhaps it's the IGP-ness. Although others with IGP's haven't complained about this. -ilia _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
