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[Bug 1523444] Re: Xorg crahed with segfault


Viktor Pal, thank you for reporting this and helping make Ubuntu better.

At your earliest convenience, could you please test the latest upstream
kernel available from the very top line at the top of the page from
http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D (the release
names are irrelevant for testing, and please do not test the daily
folder)? Install instructions are available at
https://wiki.ubuntu.com/Kernel/MainlineBuilds . This will allow
additional upstream developers to examine the issue.

If testing on your main install would be inconvenient, one may:
1) Install Ubuntu to a different partition and then test this there.
2) Backup, or clone the primary install.

If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:

Where X, and Y are the first two numbers of the kernel version, and Z is
the release candidate number if it exists.

If the mainline kernel does not fix the issue, please add the following tags:

Please note, an error to install the kernel does not fit the criteria of

Once testing of the latest upstream kernel is complete, please mark this
report's Status as Confirmed. Please let us know your results.

Thank you for your understanding.

** Tags added: latest-bios-2.65

** Package changed: xorg (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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  Xorg crahed with segfault

Status in linux package in Ubuntu:

Bug description:
  I was about to click on a button in Chromium when Xorg unexpectedly crashed.
  This bug just happened and I doubt that it is reproducible.
  This might be a kernel and not an xorg error, please re-categorize if needed.

  Relevant section from the Xorg files:
  [  6812.749] (EE) Backtrace:
  [  6812.749] (EE) 0: /usr/bin/X (xorg_backtrace+0x4e) [0x55f0bc03968e]
  [  6812.749] (EE) 1: /usr/bin/X (0x55f0bbe85000+0x1b89f9) [0x55f0bc03d9f9]
  [  6812.749] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (0x7f5e9cbbe000+0x352f0) [0x7f5e9cbf32f0]
  [  6812.749] (EE) 
  [  6812.749] (EE) Segmentation fault at address 0x0
  [  6812.749] (EE) 
  Fatal server error:
  [  6812.749] (EE) Caught signal 11 (Segmentation fault). Server aborting
  [  6812.749] (EE) 
  [  6812.749] (EE) 

  Relevant section from syslog:
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582120] ------------[ cut here ]------------
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582137] WARNING: CPU: 3 PID: 1318 at /build/linux-26_gwp/linux-4.2.0/drivers/gpu/drm/i915/i915_gem.c:5269 i915_gem_track_fb+0x129/0x140 [i915]()
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582139] WARN_ON(!(old->frontbuffer_bits & frontbuffer_bits))
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582139] Modules linked in: pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) nfsv3 nfs_acl rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache hp_wmi spa
  rse_keymap intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp joydev snd_hda_codec_hdmi input_leds snd_hda_codec_realtek kvm_intel snd_hda_codec_generic kvm snd_hda_intel snd_hda_codec crct10dif_
  pclmul snd_hda_core crc32_pclmul snd_hwdep snd_pcm aesni_intel aes_x86_64 lrw gf128mul snd_seq_midi glue_helper snd_seq_midi_event ablk_helper cryptd snd_rawmidi snd_seq snd_seq_device serio_raw snd_timer snd so
  undcore mei_me mei lpc_ich 8250_fintek tpm_infineon mac_hid ipt_REJECT nf_reject_ipv4 nf_log_ipv4 nf_log_common xt_LOG xt_recent xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack ip6ta
  ble_filter ip6_tables nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack iptable_filter ip_tables x_tables sunrpc parport_pc p
  pdev lp parport autofs4 hid_generic usbhid hid i915 psmouse i2c_algo_bit drm_kms_helper e1000e ahci drm libahci ptp pps_core wmi video
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582178] CPU: 3 PID: 1318 Comm: Xorg Tainted: G           OE   4.2.0-19-generic #23-Ubuntu
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582179] Hardware name: Hewlett-Packard HP EliteDesk 800 G1 SFF/1998, BIOS L01 v02.65 07/13/2015
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582180]  0000000000000000 00000000466f5698 ffff880212e8fac8 ffffffff817e93f9
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582182]  0000000000000000 ffff880212e8fb20 ffff880212e8fb08 ffffffff8107b3d6
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582183]  ffff880211e43600 0000000000000010 ffff880211b7c000 ffff880211b7c000
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582184] Call Trace:
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582188]  [<ffffffff817e93f9>] dump_stack+0x45/0x57
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582191]  [<ffffffff8107b3d6>] warn_slowpath_common+0x86/0xc0
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582193]  [<ffffffff8107b465>] warn_slowpath_fmt+0x55/0x70
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582200]  [<ffffffffc019fec9>] i915_gem_track_fb+0x129/0x140 [i915]
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582211]  [<ffffffffc01e8157>] intel_prepare_plane_fb+0xe7/0x1a0 [i915]
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582215]  [<ffffffffc011a009>] drm_atomic_helper_prepare_planes+0x59/0xe0 [drm_kms_helper]
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582225]  [<ffffffffc005c9e5>] ? drm_atomic_check_only+0x215/0x540 [drm]
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582235]  [<ffffffffc01f8e12>] intel_atomic_commit+0x42/0x100 [i915]
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582242]  [<ffffffffc005cd47>] drm_atomic_commit+0x37/0x60 [drm]
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582245]  [<ffffffffc011b677>] drm_atomic_helper_plane_set_property+0x87/0xc0 [drm_kms_helper]
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582250]  [<ffffffffc004a739>] ? _object_find+0x69/0xa0 [drm]
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582255]  [<ffffffffc004afbd>] drm_mode_plane_set_obj_prop+0x2d/0x90 [drm]
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582261]  [<ffffffffc0051a76>] drm_mode_obj_set_property_ioctl+0x1c6/0x270 [drm]
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582265]  [<ffffffffc0041495>] drm_ioctl+0x125/0x610 [drm]
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582267]  [<ffffffff8123e836>] ? fsnotify+0x316/0x4a0
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582272]  [<ffffffffc00518b0>] ? drm_mode_obj_get_properties_ioctl+0xa0/0xa0 [drm]
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582274]  [<ffffffff81210a25>] do_vfs_ioctl+0x295/0x480
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582276]  [<ffffffff811ff7f5>] ? __sb_end_write+0x35/0x70
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582277]  [<ffffffff811fd42a>] ? vfs_write+0x15a/0x1a0
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582278]  [<ffffffff81210c89>] SyS_ioctl+0x79/0x90
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582280]  [<ffffffff817f01f2>] entry_SYSCALL_64_fastpath+0x16/0x75
  Dec  7 11:39:25 ultra-d kernel: [ 6818.582281] ---[ end trace 6e41c462e0fbe35d ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: xorg 1:7.7+7ubuntu4
  ProcVersionSignature: Ubuntu 4.2.0-19.23-generic 4.2.6
  Uname: Linux 4.2.0-19-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: GNOME
  Date: Mon Dec  7 11:49:08 2015
  DistUpgraded: 2015-11-06 17:27:19,974 DEBUG enabling apt cron job
  DistroCodename: wily
  DistroVariant: ubuntu
   virtualbox, 5.0.10, 4.2.0-18-generic, x86_64: installed
   virtualbox, 5.0.10, 4.2.0-19-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
   Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller [8086:0412] (rev 06) (prog-if 00 [VGA controller])
     Subsystem: Hewlett-Packard Company Device [103c:1998]
  InstallationDate: Installed on 2015-06-26 (163 days ago)
  InstallationMedia: Ubuntu-GNOME 15.04 "Vivid Vervet" - Release amd64 (20150422)
  MachineType: Hewlett-Packard HP EliteDesk 800 G1 SFF
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-19-generic root=/dev/mapper/system_vg-root_lv ro noprompt persistent quiet splash vt.handoff=7
  SourcePackage: xorg
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: Upgraded to wily on 2015-11-06 (30 days ago)
  dmi.bios.date: 07/13/2015
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: L01 v02.65
  dmi.board.asset.tag: CZC4033CYV
  dmi.board.name: 1998
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.asset.tag: CZC4033CYV
  dmi.chassis.type: 4
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrL01v02.65:bd07/13/2015:svnHewlett-Packard:pnHPEliteDesk800G1SFF:pvr:rvnHewlett-Packard:rn1998:rvr:cvnHewlett-Packard:ct4:cvr:
  dmi.product.name: HP EliteDesk 800 G1 SFF
  dmi.sys.vendor: Hewlett-Packard
  version.compiz: compiz N/A
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.64-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4
  version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9.1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3
  xserver.bootTime: Mon Dec  7 11:39:36 2015
  xserver.configfile: default
  xserver.logfile: /var/log/Xorg.0.log
   product id                               12446 
   vendor                                     HWP
  xserver.version: 2:1.17.2-1ubuntu9.1

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