bugzilla-daemon at freedesktop.org
2009-Jul-13 21:27 UTC
[Nouveau] [Bug 22756] New: nouveau_fence.c kernel BUG and recursive faults
http://bugs.freedesktop.org/show_bug.cgi?id=22756 Summary: nouveau_fence.c kernel BUG and recursive faults Product: xorg Version: git Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: Driver/nouveau AssignedTo: nouveau at lists.freedesktop.org ReportedBy: pq at iki.fi QAContact: xorg-team at lists.x.org Created an attachment (id=27647) --> (http://bugs.freedesktop.org/attachment.cgi?id=27647) Xorg log Nouveau, KMS enabled and working fine, NV28 card. DRM modules from nouveau/linux-2.6 git, v2.6.31-rc2-65-g7525cc6, branch master-compat, commit 7525cc6ddc45772f78aa40fe0a767f512f2ae1ed "Clarify nouveau/DEPENDS file.". This branch is up-to-date with master branch commit "drm/nouveau: allow celcius on nv20". The host kernel is 2.6.28-gentoo-r5. When trying to start X, screen blinks, goes black, kernel hits BUGs, but the machine does not hang. SysRq can unlock the keyboard, but I do not get the console back, screen stays black. The kernel recommends a reboot after the recursive fault. Attaching X.org log (nothing really interesting), and the kernel log with drm debug=1, except all debug messages starting in nouveau_hw.h disabled (they overflow the kernel message buffer and I hear they make I2C/DDC fail). I'm guessing a way to reproduce this would be to remove e.g. NVxxTCL object from the list of allowed grobjs, and then starting X. Missing NV11TCL was how I first hit this kind of bug, but adding that did not fix everything. Probably something wrong in the nouveau DRM error paths. -- Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug.
bugzilla-daemon at freedesktop.org
2009-Jul-13 21:28 UTC
[Nouveau] [Bug 22756] nouveau_fence.c kernel BUG and recursive faults
http://bugs.freedesktop.org/show_bug.cgi?id=22756 --- Comment #1 from Pekka Paalanen <pq at iki.fi> 2009-07-13 14:28:57 PST --- Created an attachment (id=27648) --> (http://bugs.freedesktop.org/attachment.cgi?id=27648) kernel log -- Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug.
bugzilla-daemon at freedesktop.org
2009-Jul-16 11:09 UTC
[Nouveau] [Bug 22756] nouveau_fence.c kernel BUG and recursive faults
http://bugs.freedesktop.org/show_bug.cgi?id=22756 --- Comment #2 from David <david.hernando.m at gmail.com> 2009-07-16 04:09:17 PST --- Created an attachment (id=27759) --> (http://bugs.freedesktop.org/attachment.cgi?id=27759) kernel log The same happens with NV18. Removing the patch: drm/nouveau: protect fence pending list with Spinlock commit: ed6cc42c377ed125e6b95e0808883a8a47f137c2 this works. -- Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug.
bugzilla-daemon at freedesktop.org
2009-Jul-17 10:08 UTC
[Nouveau] [Bug 22756] nouveau_fence.c kernel BUG and recursive faults
http://bugs.freedesktop.org/show_bug.cgi?id=22756 --- Comment #3 from David <david.hernando.m at gmail.com> 2009-07-17 03:08:38 PST --- It already works well, I think it's because: drm/nouveau: fix BUG_ON() on UP systems, spin_is_locked() always returns 0 commit: f248e95a848d3e70be395862fdf512ffdfcecd51 thanks -- Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug.
bugzilla-daemon at freedesktop.org
2009-Jul-19 15:58 UTC
[Nouveau] [Bug 22756] nouveau_fence.c kernel BUG and recursive faults
http://bugs.freedesktop.org/show_bug.cgi?id=22756 Pekka Paalanen <pq at iki.fi> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED --- Comment #4 from Pekka Paalanen <pq at iki.fi> 2009-07-19 08:58:44 PST --- (In reply to comment #3)> It already works well, I think it's because: > > drm/nouveau: fix BUG_ON() on UP systems, spin_is_locked() always returns 0 > commit: f248e95a848d3e70be395862fdf512ffdfcecd51 > > thanks >Yup, confirmed here, too. Latest DRM works just fine. -- Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug.