[Bug 1796534] Re: plymouthd crashed with SIGSEGV in ply_renderer_set_handler_for_input_source()

[Sebastien Bacher]

*** This bug is a duplicate of bug 1794292 ***
    https://bugs.launchpad.net/bugs/1794292

@Jack, thanks for the comment, it indeed seems the same segfault as bug
#1794292 which is fixed in that update

** This bug has been marked a duplicate of bug 1794292
   plymouthd crashed with SIGSEGV in /sbin/plymouthd:11 in ply_renderer_set_handler_for_input_source -> ply_keyboard_stop_watching_for_renderer_input -> ply_keyboard_stop_watching_for_input -> ply_device_manager_deactivate_keyboards -> on_deactivate

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https://bugs.launchpad.net/bugs/1796534

Title:
  plymouthd crashed with SIGSEGV in
  ply_renderer_set_handler_for_input_source()

Status in plymouth package in Ubuntu:
  Confirmed

Bug description:
  summary - updated [my x86 system] ~5 mins ago, rebooted & apport-crash
  again...

  Boot up looked normal, this is a test system installed a couple of days ago (QA test; xubuntu 18.10 x86 install
  )
  It has been booted twice today, it occurred both times.  I 'dist-upgrade' during first boot today, then boot to see if it happened again - yep.

  I read the https://bugs.launchpad.net/bugs/1794292 which I selected
  first boot, which may be same issue, but I don't get a black plymouth
  screen (mine looks normal; my description is different), the crash
  window after login is the only indicator of anything unusual.

  ---  update
  I rebooted (3rd time) - plymouth screen was black, non-central XUBUNTU in text (about 1/4 from top left) with dots underneath it changing in intensity  (maybe I wasn't paying enough attention before; and it better matches description of #1794292.  I rebooted again (4th) and plymouth is just like 3rd time...

  hardware summary: hp dx6120mt (mini-tower, pentium 4 dual core, 3gb,
  nvidia 7600gt)

  ProblemType: Crash
  DistroRelease: Ubuntu 18.10
  Package: plymouth 0.9.3-1ubuntu9
  ProcVersionSignature: Ubuntu 4.18.0-8.9-generic 4.18.7
  Uname: Linux 4.18.0-8-generic i686
  ApportVersion: 2.20.10-0ubuntu11
  Architecture: i386
  BootLog: Error: [Errno 2] No such file or directory: '/var/log/boot.log'
  CrashCounter: 1
  Date: Sun Oct  7 13:56:35 2018
  DefaultPlymouth: /usr/share/plymouth/themes/xubuntu-logo/xubuntu-logo.plymouth
  ExecutablePath: /sbin/plymouthd
  InstallationDate: Installed on 2018-10-05 (2 days ago)
  InstallationMedia: Xubuntu 18.10 "Cosmic Cuttlefish" - Beta i386 (20181004)
  MachineType: Hewlett-Packard HP Compaq dx6120 MT(PL926AV)
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-8-generic root=UUID=d02d6611-54cb-4373-bdf5-4f3bf6ed760b ro quiet splash vt.handoff=1
  ProcCmdline: @sbin/plymouthd --mode=boot --pid-file=/run/plymouth/pid --attach-to-session
  ProcEnviron:
   LANG=en_AU.UTF-8
   LANGUAGE=en_AU:en
   PATH=(custom, no user)
  ProcFB: 0 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-8-generic root=UUID=d02d6611-54cb-4373-bdf5-4f3bf6ed760b ro quiet splash vt.handoff=1
  SegvAnalysis:
   Segfault happened at: 0xb7f079f9 <ply_renderer_set_handler_for_input_source+41>:	mov    0x3c(%edx),%eax
   PC (0xb7f079f9) ok
   source "0x3c(%edx)" (0x3833696b) not located in a known VMA region (needed readable region)!
   destination "%eax" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: plymouth
  StacktraceTop:
   ply_renderer_set_handler_for_input_source () from /lib/i386-linux-gnu/libply-splash-core.so.4
   ply_keyboard_stop_watching_for_input () from /lib/i386-linux-gnu/libply-splash-core.so.4
   ply_device_manager_deactivate_keyboards () from /lib/i386-linux-gnu/libply-splash-core.so.4
   ?? ()
   _start ()
  TextPlymouth: /usr/share/plymouth/themes/xubuntu-text/xubuntu-text.plymouth
  Title: plymouthd crashed with SIGSEGV in ply_renderer_set_handler_for_input_source()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

  dmi.bios.date: 12/01/2004
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 786C2 v01.02
  dmi.board.name: 09CCh
  dmi.board.vendor: Hewlett-Packard
  dmi.chassis.type: 6
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr786C2v01.02:bd12/01/2004:svnHewlett-Packard:pnHPCompaqdx6120MT(PL926AV):pvr:rvnHewlett-Packard:rn09CCh:rvr:cvnHewlett-Packard:ct6:cvr:
  dmi.product.name: HP Compaq dx6120 MT(PL926AV)
  dmi.sys.vendor: Hewlett-Packard

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