[Bug 966868] Re: plymouthd crashed with SIGABRT in __assert_fail_base()

[Bryce Harrington]

This looks more like a libdrm bug.  There's a race condition with the
i915 device not being ready by the time plymouth is starting.  Possibly
it's because it doesn't have drm master.

<Sarvatt> apparently chromeos works around it with
http://git.chromium.org/gitweb/?p=chromiumos/third_party/kernel.git;a=commit;h=32a8c5b67163a6ae211ff2683c999b6ad2c76d1f
but thats just working around the problem..

googling intel/intel_bufmgr_gem.c:2783 turns up a lot of hits.

The code in question with the assert is:

	if (IS_GEN2(bufmgr_gem->pci_device))
                bufmgr_gem->gen = 2;
        else if (IS_GEN3(bufmgr_gem->pci_device))
                bufmgr_gem->gen = 3;
	else if (IS_GEN4(bufmgr_gem->pci_device))
                bufmgr_gem->gen = 4;
        else if (IS_GEN5(bufmgr_gem->pci_device))
                bufmgr_gem->gen = 5;
        else if (IS_GEN6(bufmgr_gem->pci_device))
                bufmgr_gem->gen = 6;
        else if (IS_GEN7(bufmgr_gem->pci_device))
                bufmgr_gem->gen = 7;
        else
                assert(0);

$ xpci 8086:0126
snb-m-gt2+ (8086:0126) sandybridge

So it should be going into the IS_GEN6 branch.

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https://bugs.launchpad.net/bugs/966868

Title:
  plymouthd crashed with SIGABRT in __assert_fail_base()

Status in “plymouth” package in Ubuntu:
  Confirmed

Bug description:
  After a force restart of Ubuntu, I've got a System Crash error after
  logging in.

  lsb_release -rd
  Description:	Ubuntu precise (development branch)
  Release:	12.04

  Thanks!

  ProblemType: Crash
  DistroRelease: Ubuntu 12.04
  Package: plymouth 0.8.2-2ubuntu28
  ProcVersionSignature: Ubuntu 3.2.0-20.33-generic 3.2.12
  Uname: Linux 3.2.0-20-generic x86_64
  ApportVersion: 1.95-0ubuntu1
  Architecture: amd64
  Date: Wed Mar 28 09:33:16 2012
  DefaultPlymouth: /lib/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth
  ExecutablePath: /sbin/plymouthd
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120322)
  MachineType: LENOVO 4284BZ4
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-20-generic root=UUID=f1bb4518-a890-49c0-9339-ecc3d8bd2658 ro quiet splash vt.handoff=7
  ProcCmdline: /sbin/plymouthd --mode=boot --attach-to-session
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-20-generic root=UUID=f1bb4518-a890-49c0-9339-ecc3d8bd2658 ro quiet splash vt.handoff=7
  Signal: 6
  SourcePackage: plymouth
  TextPlymouth: /lib/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
  Title: plymouthd crashed with SIGABRT in raise()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  dmi.bios.date: 01/19/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8BET56WW (1.36 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4284BZ4
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr8BET56WW(1.36):bd01/19/2012:svnLENOVO:pn4284BZ4:pvrThinkPadW520:rvnLENOVO:rn4284BZ4:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4284BZ4
  dmi.product.version: ThinkPad W520
  dmi.sys.vendor: LENOVO

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