I strongly suspect this is the same bug in upstream kernel v4.15, which
causes this issue:

https://bugs.launchpad.net/ubuntu/+source/xorg-
server/+bug/1760450/comments/6

I am basing this on the "signal 7" (SIGBUS), as this is relatively rare
on x86 [1].  Also that it occurs inside xorg_backtrace() - this is also
*supposed* to be relatively rare, because libunwind tries to use a
clever trick to avoid reading wild pointers and dying with a
segmentation fault [2].

[1] https://stackoverflow.com/questions/2089167/debugging-sigbus-on-x86-linux
[2] https://lwn.net/Articles/502864/

I would also predict that the original fault was caused by fetching the
first instruction of the function, but it looks like we don't have the
symbol information for it.  (boo, nvidia).

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to nvidia-graphics-drivers in Ubuntu.
https://bugs.launchpad.net/bugs/1756984

Title:
  Xorg crashed with signal 7 in dl_new_hash()

Status in nvidia-graphics-drivers package in Ubuntu:
  Confirmed

Bug description:
  after turn on system(on suspend mode) and login session...

  ProblemType: Crash
  DistroRelease: Ubuntu 18.04
  Package: xserver-xorg-core 2:1.19.6-1ubuntu3
  ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
  Uname: Linux 4.15.0-12-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  .proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: 
'/proc/driver/nvidia/gpus/0000:01:00.0'
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.version:
   NVRM version: NVIDIA UNIX x86_64 Kernel Module  390.42  Sat Mar  3 04:10:22 
PST 2018
   GCC version:  gcc version 7.3.0 (Ubuntu 7.3.0-11ubuntu1)
  .proc.driver.nvidia.warnings.fbdev:
   Your system is not currently configured to drive a VGA console
   on the primary VGA device. The NVIDIA Linux graphics driver
   requires the use of a text-mode VGA console. Use of other console
   drivers including, but not limited to, vesafb, may result in
   corruption and stability problems, and is not supported.
  ApportVersion: 2.20.8-0ubuntu10
  Architecture: amd64
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CrashCounter: 1
  Date: Mon Mar 19 22:53:41 2018
  DistUpgraded: Fresh install
  DistroCodename: bionic
  DistroVariant: ubuntu
  DkmsStatus:
   nvidia, 390.42, 4.15.0-12-generic, x86_64: installed
   virtualbox, 5.2.8, 4.15.0-12-generic, x86_64: installed
  ExecutablePath: /usr/lib/xorg/Xorg
  GraphicsCard:
   NVIDIA Corporation GP107 [GeForce GTX 1050 Ti] [10de:1c82] (rev a1) (prog-if 
00 [VGA controller])
     Subsystem: ASUSTeK Computer Inc. GP107 [GeForce GTX 1050 Ti] [1043:85cd]
  InstallationDate: Installed on 2017-09-02 (198 days ago)
  InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Release amd64 (20170412)
  MachineType: System manufacturer System Product Name
  ProcCmdline: /usr/lib/xorg/Xorg vt2 -displayfd 3 -auth 
/run/user/1000/gdm/Xauthority -background none -noreset -keeptty -verbose 3
  ProcEnviron:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-12-generic.efi.signed 
root=UUID=a5d262b4-1b0f-4856-9935-f6a7f6d6d406 ro quiet splash vt.handoff=1
  Signal: 7
  SourcePackage: nvidia-graphics-drivers
  StacktraceTop:
   dl_new_hash (s=0x7f1d94fa7f3c "pixman_rasterize_trapezoid") at 
dl-lookup.c:555
   _dl_lookup_symbol_x (undef_name=0x7f1d94fa7f3c "pixman_rasterize_trapezoid", 
undef_map=0x55a6c8f6d5b0, ref=ref@entry=0x7ffeda6e5728, 
symbol_scope=0x55a6c8f6d908, version=0x0, type_class=type_class@entry=1, 
flags=5, skip_map=0x0) at dl-lookup.c:791
   _dl_fixup (l=<optimized out>, reloc_arg=<optimized out>) at 
../elf/dl-runtime.c:112
   _dl_runtime_resolve_xsavec () at ../sysdeps/x86_64/dl-trampoline.h:125
   wfbRasterizeTrapezoid () from /usr/lib/xorg/modules/libwfb.so
  Title: Xorg crashed with signal 7 in dl_new_hash()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip libvirt lpadmin plugdev sambashare sudo
  dmi.bios.date: 09/19/2016
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 2003
  dmi.board.asset.tag: Default string
  dmi.board.name: Z170-P
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Default string
  dmi.chassis.type: 3
  dmi.chassis.vendor: Default string
  dmi.chassis.version: Default string
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr2003:bd09/19/2016:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnZ170-P:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:
  dmi.product.family: To be filled by O.E.M.
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.90-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.0~rc4-1ubuntu3
  version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.0~rc4-1ubuntu3
  version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu3
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20171229-1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/1756984/+subscriptions

-- 
Mailing list: https://launchpad.net/~desktop-packages
Post to     : desktop-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~desktop-packages
More help   : https://help.launchpad.net/ListHelp

Reply via email to