[Bug 1057745] Re: plymouthd crashed with SIGSEGV in ply_trigger_add_handler()

[qamelian]

*** This bug is a duplicate of bug 864430 ***
    https://bugs.launchpad.net/bugs/864430


** Visibility changed to: Public

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https://bugs.launchpad.net/bugs/1057745

Title:
  plymouthd crashed with SIGSEGV in ply_trigger_add_handler()

Status in “plymouth” package in Ubuntu:
  New

Bug description:
  On boot, Plymouth splash screen fails to appear, leaving a blank
  purple screen. Blank screen remains even when LightDM or GDM should be
  displaying greeter/login screen. Login appears to be possible, even
  though screen remains hidden by blank purple screen. User can switch
  to another TTY using CTRL+ALT+1 (2, 3, etc) and then reboot by
  pressing CTRL+ALT+DEL. Sometimes takes 2 - 4 reboots like this to get
  greeter to appear as expected.

  ProblemType: Crash
  DistroRelease: Ubuntu 12.10
  Package: plymouth 0.8.4-0ubuntu3
  ProcVersionSignature: Ubuntu 3.5.0-15.23-generic 3.5.4
  Uname: Linux 3.5.0-15-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.5.2-0ubuntu4
  Architecture: amd64
  CurrentDmesg:
   
  Date: Thu Sep 27 17:21:36 2012
  DefaultPlymouth: /lib/plymouth/themes/ubuntu-logo/ubuntu-logo.plymouth
  ExecutablePath: /sbin/plymouthd
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120809.1)
  Lsusb:
   Bus 002 Device 002: ID 0402:9665 ALi Corp. Gateway Webcam
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: Acer Aspire One 522
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-15-generic root=UUID=01bb2b61-bebb-4e3d-95fe-329856d04c26 ro quiet splash vt.handoff=7
  ProcCmdline: /sbin/plymouthd --mode=boot --attach-to-session
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-15-generic root=UUID=01bb2b61-bebb-4e3d-95fe-329856d04c26 ro quiet splash vt.handoff=7
  SegvAnalysis:
   Segfault happened at: 0x7fbc31bcdefb <ply_trigger_add_handler+43>:	mov    (%rbx),%rdi
   PC (0x7fbc31bcdefb) ok
   source "(%rbx)" (0x00000000) not located in a known VMA region (needed readable region)!
   destination "%rdi" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: plymouth
  StacktraceTop:
   ply_trigger_add_handler () from /lib/libply.so.2
   ?? ()
   ply_event_loop_process_pending_events () from /lib/libply.so.2
   ply_event_loop_run () from /lib/libply.so.2
   ?? ()
  TextPlymouth: /lib/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
  Title: plymouthd crashed with SIGSEGV in ply_trigger_add_handler()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  dmi.bios.date: 12/09/2010
  dmi.bios.vendor: Acer
  dmi.bios.version: V1.03
  dmi.board.name: Aspire One 522
  dmi.board.vendor: Acer
  dmi.board.version: V1.03
  dmi.chassis.type: 10
  dmi.chassis.vendor: Chassis Manufacturer
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAcer:bvrV1.03:bd12/09/2010:svnAcer:pnAspireOne522:pvrV1.03:rvnAcer:rnAspireOne522:rvrV1.03:cvnChassisManufacturer:ct10:cvrChassisVersion:
  dmi.product.name: Aspire One 522
  dmi.product.version: V1.03
  dmi.sys.vendor: Acer

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