This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1475437
and then change the status of the bug to 'Confirmed'.
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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1475437
Title:
kernel warning /build/linux-
hzKv5F/linux-4.0.0/include/drm/ttm/ttm_bo_driver.h:855
qxl_surface_id_alloc
Status in linux package in Ubuntu:
Incomplete
Bug description:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 712 at
/build/linux-hzKv5F/linux-4.0.0/include/drm/ttm/ttm_bo_driver.h:855
qxl_surface_id_alloc+0x2e9/0x3b0 [qxl]()
Modules linked in: cfg80211 binfmt_misc kvm_intel kvm crct10dif_pclmul
snd_hda_codec_generic crc32_pclmul ghash_clmulni_intel snd_hda_intel snd
aesni_intel snd_hda_codec aes_x86_64 snd_hwdep snd_pcm snd_seq_midi
snd_seq_midi_event lrw gf128mul snd_rawmidi serio_raw glue_helper ablk_help
q snd_seq_device qxl ttm drm_kms_helper snd_timer drm snd i2c_piix4 mac_hid
pvpanic 8250_fintek soundcore parport_pc ppdev lp parport autofs4 p
ta_acpi
CPU: 0 PID: 712 Comm: Xorg Not tainted 4.0.0-4-generic #7-Ubuntu
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
1.7.5-20150306_163512-brownie 04/01/2014
ffffffffc0365668 ffff88007b4b3b68 ffffffff817d0fa0 0000000000000007
0000000000000000 ffff88007b4b3ba8 ffffffff81075b5a ffff880062cb95e0
ffff880068702000 0000000000000412 ffff880068702058 ffff88007a676000
Call Trace:
[<ffffffff817d0fa0>] dump_stack+0x45/0x57
[<ffffffff81075b5a>] warn_slowpath_common+0x8a/0xc0
[<ffffffff81075c4a>] warn_slowpath_null+0x1a/0x20
[<ffffffffc03602f9>] qxl_surface_id_alloc+0x2e9/0x3b0 [qxl]
[<ffffffffc035e9a4>] qxl_bo_check_id+0x34/0x50 [qxl]
[<ffffffffc0362f63>] qxl_release_reserve_list+0xf3/0x120 [qxl]
[<ffffffffc036261b>] qxl_process_single_command+0x54b/0x790 [qxl]
[<ffffffffc036289f>] qxl_execbuffer_ioctl+0x3f/0xa0 [qxl]
[<ffffffffc02b3b1f>] drm_ioctl+0x1df/0x680 [drm]
[<ffffffff811acce0>] ? handle_mm_fault+0x330/0x560
[<ffffffff81209910>] do_vfs_ioctl+0x2e0/0x4e0
[<ffffffff810631b5>] ? trace_do_page_fault+0x45/0x100
[<ffffffff81209b91>] SyS_ioctl+0x81/0xa0
[<ffffffff817d7fcd>] system_call_fastpath+0x16/0x1b
---[ end trace d5efdc2555a18389 ]---
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