Description of problem: Happened when starting KVM guest F19. The host was under some I/O load, not sure if that's relevant. Additional info: reporter: libreport-2.1.9 WARNING: CPU: 0 PID: 156 at drivers/gpu/drm/qxl/qxl_ttm.c:418 qxl_sync_obj_wait+0x172/0x1f0 [qxl]() sync obj 301 still has outstanding releases 0 0 0 4096 1 Modules linked in: joydev snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm snd_page_alloc snd_timer snd microcode soundcore i2c_piix4 serio_raw virtio_balloon mperf uinput qxl drm_kms_helper virtio_blk ttm virtio_net drm i2c_core ata_generic pata_acpi CPU: 0 PID: 156 Comm: plymouthd Not tainted 3.11.10-200.fc19.x86_64 #1 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 0000000000000009 ffff8800374bd798 ffffffff8164768b ffff8800374bd7e0 ffff8800374bd7d0 ffffffff8106715d 0000000000000001 ffff8800368e5ab0 0000000000000001 ffff8800368e5ac8 0000000000000000 ffff8800374bd830 Call Trace: [<ffffffff8164768b>] dump_stack+0x45/0x56 [<ffffffff8106715d>] warn_slowpath_common+0x7d/0xa0 [<ffffffff810671cc>] warn_slowpath_fmt+0x4c/0x50 [<ffffffff8164b7d3>] ? schedule_hrtimeout_range+0x13/0x20 [<ffffffffa00a7e82>] qxl_sync_obj_wait+0x172/0x1f0 [qxl] [<ffffffffa008370e>] ttm_bo_wait+0x8e/0x180 [ttm] [<ffffffffa0084fda>] ttm_bo_evict+0x4a/0x330 [ttm] [<ffffffff812a72ec>] ? sidtab_context_to_sid+0x30c/0x480 [<ffffffffa00853f0>] ttm_mem_evict_first+0x130/0x190 [ttm] [<ffffffffa0085701>] ttm_bo_mem_space+0x2b1/0x360 [ttm] [<ffffffffa0085b0a>] ttm_bo_move_buffer+0xaa/0x130 [ttm] [<ffffffffa0085c1a>] ttm_bo_validate+0x8a/0x100 [ttm] [<ffffffffa0085e66>] ttm_bo_init+0x1d6/0x430 [ttm] [<ffffffffa00a9df9>] qxl_bo_create+0x159/0x1e0 [qxl] [<ffffffffa00a9b60>] ? qxl_fbdev_qobj_is_fb+0x30/0x30 [qxl] [<ffffffffa00ab1e7>] qxl_alloc_bo_reserved+0x37/0xb0 [qxl] [<ffffffffa00ac0ce>] qxl_image_alloc_objects+0xae/0x140 [qxl] [<ffffffffa00aca62>] qxl_draw_dirty_fb+0x132/0x440 [qxl] [<ffffffff8164a8a2>] ? mutex_lock+0x12/0x2f [<ffffffffa00a5fb9>] qxl_framebuffer_surface_dirty+0x79/0xa0 [qxl] [<ffffffffa0034610>] drm_mode_dirtyfb_ioctl+0xe0/0x190 [drm] [<ffffffffa0024122>] drm_ioctl+0x512/0x640 [drm] [<ffffffff811b9fdd>] do_vfs_ioctl+0x2dd/0x4b0 [<ffffffff810984f0>] ? wake_up_state+0x20/0x20 [<ffffffff811ba231>] SyS_ioctl+0x81/0xa0 [<ffffffff81656899>] system_call_fastpath+0x16/0x1b Potential duplicate: bug 1050142
Created attachment 848138 [details] File: dmesg
This looks really similar to #1050142 so I'll close this as duplicate. *** This bug has been marked as a duplicate of bug 1050142 ***