On 2013.07.10 at 11:56 +0200, Maarten Lankhorst wrote: > Op 10-07-13 11:46, Markus Trippelsdorf schreef: > > On 2013.07.10 at 11:29 +0200, Maarten Lankhorst wrote: > >> Op 10-07-13 11:22, Markus Trippelsdorf schreef: > >>> By simply copy/pasting a big document under LibreOffice my system hangs > >>> itself up. Only a hard reset gets it working again. > >>> see also: https://bugs.freedesktop.org/show_bug.cgi?id=66551 > >>> > >>> I've bisected the issue to: > >>> > >>> commit ecff665f5e3f1c6909353e00b9420e45ae23d995 > >>> Author: Maarten Lankhorst <m.b.lankhorst@xxxxxxxxx> > >>> Date: Thu Jun 27 13:48:17 2013 +0200 > >>> > >>> drm/ttm: make ttm reservation calls behave like reservation calls > >>> > >>> This commit converts the source of the val_seq counter to > >>> the ww_mutex api. The reservation objects are converted later, > >>> because there is still a lockdep splat in nouveau that has to > >>> resolved first. > >>> > >>> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxx> > >>> Reviewed-by: Jerome Glisse <jglisse@xxxxxxxxxx> > >>> Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx> > >> Hey, > >> > >> Can you try current head with CONFIG_PROVE_LOCKING set and post the > >> lockdep splat from dmesg, if any? If there is any locking issue > >> lockdep should warn about it. Lockdep will turn itself off after the > >> first splat, so if the lockdep splat happens before running the > >> affected parts those will have to be fixed first. > > There was an unrelated EDAC lockdep splat, so I simply disabled it. > > > > This is what I get: > > > > Jul 10 11:40:44 x4 kernel: ================================================ > > Jul 10 11:40:44 x4 kernel: [ BUG: lock held when returning to user space! ] > > Jul 10 11:40:44 x4 kernel: 3.10.0-08587-g496322b #35 Not tainted > > Jul 10 11:40:44 x4 kernel: ------------------------------------------------ > > Jul 10 11:40:44 x4 kernel: X/211 is leaving the kernel with locks still held! > > Jul 10 11:40:44 x4 kernel: 2 locks held by X/211: > > Jul 10 11:40:44 x4 kernel: #0: (reservation_ww_class_acquire){+.+.+.}, at: [<ffffffff813279f0>] radeon_bo_list_validate+0x20/0xd0 > > Jul 10 11:40:44 x4 kernel: #1: (reservation_ww_class_mutex){+.+.+.}, at: [<ffffffff81309306>] ttm_eu_reserve_buffers+0x126/0x4b0 > > Jul 10 11:40:52 x4 kernel: SysRq : Emergency Sync > > Jul 10 11:40:53 x4 kernel: Emergency Sync complete > > > Thanks, exactly what I thought. I missed a backoff somewhere.. > > Does the below patch fix it? Yes. Thank you for your quick reply. -- Markus _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
