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

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https://bugs.launchpad.net/bugs/1901563

Title:
  Kernel panic - Xorg tainted - i915

Status in xorg package in Ubuntu:
  New

Bug description:
  I've just upgraded to 20.10. After logging in and using PyCharm for a
  while, the system froze, and I had to do a REISUB. It turned out to be
  a kernel panic and seems related to Xorg and the i915 driver.

  This has now happened multiple times, and not all crashes have
  happened while using PyCharm.

  I've tried using the ppa:canonical-kernel-team/ppa to install a new
  kernel (5.8.0-26-generic) but that did not help.

  [ 1620.425014] general protection fault, probably for non-canonical address 
0xe296718293aa0a0a: 0000 [#1] SMP PTI 
  [ 1620.425017] CPU: 2 PID: 1749 Comm: Xorg Tainted: G        W         
5.8.0-26-generic #27-Ubuntu
  [ 1620.425018] Hardware name: Dell Inc. XPS 13 9370/0F6P3V, BIOS 1.2.1 
02/21/2018
  [ 1620.425023] RIP: 0010:kmem_cache_alloc+0x7e/0x230
  [ 1620.425025] Code: 95 01 00 00 4d 8b 07 65 49 8b 50 08 65 4c 03 05 a0 59 33 
4d 4d 8b 20 4d 85 e4 0f 84 81 01 00 00 41 8b 47 20 49 8b 3f 4c 01 e0 <48> 8b 18 
48 89 c1 49 33 9f 70 01 00 00 4c 89 e0 48 0f c9 48 31 cb
  [ 1620.425026] RSP: 0018:ffffb1f6c19e79b0 EFLAGS: 00010286
  [ 1620.425028] RAX: e296718293aa0a0a RBX: 0000000000000000 RCX: 
0000000000000002
  [ 1620.425029] RDX: 0000000000007d5e RSI: 0000000000000dc0 RDI: 
0000441461604a80
  [ 1620.425031] RBP: ffffb1f6c19e79e0 R08: ffffd1f6bfc84a80 R09: 
0000000000000000
  [ 1620.425032] R10: 0000000000000000 R11: ffff8de1eca2f6c2 R12: 
e296718293aa08b2
  [ 1620.425033] R13: 0000000000000dc0 R14: ffff8de2488364c0 R15: 
ffff8de2488364c0
  [ 1620.425034] FS:  00007fe9c3b52a40(0000) GS:ffff8de25e680000(0000) 
knlGS:0000000000000000
  [ 1620.425035] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  [ 1620.425037] CR2: 00007f6c1433c000 CR3: 0000000488622001 CR4: 
00000000003606e0
  [ 1620.425038] Call Trace:
  [ 1620.425087]  ? vma_create+0x30/0x460 [i915]
  [ 1620.425122]  vma_create+0x30/0x460 [i915]
  [ 1620.425124]  ? mutex_lock+0x13/0x40
  [ 1620.425157]  i915_vma_instance+0xd2/0xe0 [i915]
  [ 1620.425187]  eb_lookup_vma+0xd7/0x1c0 [i915]
  [ 1620.425217]  eb_lookup_vmas+0x79/0x200 [i915]
  [ 1620.425247]  eb_relocate+0x18/0x1b0 [i915]
  [ 1620.425275]  i915_gem_do_execbuffer+0x265/0x8d0 [i915]
  [ 1620.425278]  ? enqueue_task_fair+0x159/0x590
  [ 1620.425282]  ? __radix_tree_replace+0x4a/0xe0
  [ 1620.425285]  ? _cond_resched+0x1a/0x50
  [ 1620.425287]  ? kmem_cache_alloc_trace+0x168/0x240
  [ 1620.425290]  ? __kmalloc_node+0x201/0x300
  [ 1620.425320]  i915_gem_execbuffer2_ioctl+0x237/0x4a0 [i915]
  [ 1620.425348]  ? intel_engines_add_sysfs+0x150/0x150 [i915]
  [ 1620.425350]  ? radix_tree_lookup+0xd/0x10
  [ 1620.425379]  ? i915_gem_execbuffer_ioctl+0x2e0/0x2e0 [i915]
  [ 1620.425395]  drm_ioctl_kernel+0xae/0xf0 [drm]
  [ 1620.425406]  drm_ioctl+0x238/0x3d0 [drm]
  [ 1620.425434]  ? i915_gem_execbuffer_ioctl+0x2e0/0x2e0 [i915]
  [ 1620.425437]  ? fput+0x13/0x15
  [ 1620.425440]  ? __sys_recvmsg+0x94/0xb0
  [ 1620.425442]  ksys_ioctl+0x8e/0xc0
  [ 1620.425444]  __x64_sys_ioctl+0x1a/0x20
  [ 1620.425447]  do_syscall_64+0x49/0xc0
  [ 1620.425449]  entry_SYSCALL_64_after_hwframe+0x44/0xa9

  
  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: xorg 1:7.7+19ubuntu15
  ProcVersionSignature: Ubuntu 5.8.0-26.27-generic 5.8.14
  Uname: Linux 5.8.0-26-generic x86_64
  .tmp.unity_support_test.0:

  ApportVersion: 2.20.11-0ubuntu50
  Architecture: amd64
  CasperMD5CheckResult: skip
  CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
  CompositorRunning: None
  CurrentDesktop: GNOME-Flashback:GNOME
  Date: Mon Oct 26 16:33:28 2020
  DistUpgraded: 2020-10-23 13:15:10,351 DEBUG Running PostInstallScript: 
'./xorg_fix_proprietary.py'
  DistributionChannelDescriptor:
   # This is a distribution channel descriptor
   # For more information see 
http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-somerville-xenial-amd64-20160624-2
  DistroCodename: groovy
  DistroVariant: ubuntu
  EcryptfsInUse: Yes
  ExtraDebuggingInterest: Yes
  GpuHangFrequency: Several times a day
  GpuHangReproducibility: Seems to happen randomly
  GpuHangStarted: Immediately after installing this version of Ubuntu
  GraphicsCard:
   Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA 
controller])
     Subsystem: Dell UHD Graphics 620 [1028:07e6]
  InstallationDate: Installed on 2018-05-04 (906 days ago)
  InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 
20160624-10:47
  MachineType: Dell Inc. XPS 13 9370
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-26-generic 
root=UUID=4e0782c5-5436-4e47-9813-0946aea670c3 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  Title: Xorg freeze
  UpgradeStatus: Upgraded to groovy on 2020-10-23 (3 days ago)
  dmi.bios.date: 02/21/2018
  dmi.bios.release: 1.2
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.1
  dmi.board.name: 0F6P3V
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.1:bd02/21/2018:br1.2:svnDellInc.:pnXPS139370:pvr:rvnDellInc.:rn0F6P3V:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.family: XPS
  dmi.product.name: XPS 13 9370
  dmi.product.sku: 07E6
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz 1:0.9.14.1+20.10.20200813-0ubuntu1
  version.libdrm2: libdrm2 2.4.102-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.1-1
  version.libgl1-mesa-glx: libgl1-mesa-glx 20.2.1-1
  version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.6-2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20200714-1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
  xserver.bootTime: Mon Oct 26 16:16:27 2020
  xserver.configfile: default
  xserver.errors:

  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                5252
   vendor                                     SHP
  xserver.version: 2:1.20.9-2ubuntu1

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