Ubuntu
plymouth package

plymouthd crashed with SIGSEGV in ply_input_device_get_keymap()

Bug #2050743 reported by Adam K on 2024-01-22

This bug affects 3 people

Affects		Status	Importance	Assigned to	Milestone
	Plymouth	Fix Released	Unknown	auto-gitlab.freedesktop.org-plymouth-plymouth-- #245
	plymouth (Ubuntu)	Fix Released	Medium	Daniel van Vugt

Bug Description

Unsure

ProblemType: Crash
DistroRelease: Ubuntu 24.04
Package: plymouth 23.360.11-0ubuntu2
ProcVersionSignature: Ubuntu 6.6.0-14.14-generic 6.6.3
Uname: Linux 6.6.0-14-generic x86_64
ApportVersion: 2.27.0-0ubuntu6
Architecture: amd64
CasperMD5CheckResult: pass
CloudArchitecture: x86_64
CloudID: none
CloudName: none
CloudPlatform: none
CloudSubPlatform: config
Date: Mon Jan 22 18:15:26 2024
DefaultPlymouth: /usr/share/plymouth/themes/bgrt/bgrt.plymouth
ExecutablePath: /usr/sbin/plymouthd
InstallationDate: Installed on 2024-01-22 (0 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Daily amd64 (20240122)
JournalErrors: -- No entries --
Lspci:

Lspci-vt:

Lsusb: Error: command ['lsusb'] failed with exit code 1:
Lsusb-t:

Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 1:
MachineType: {report['dmi.sys.vendor']} {report['dmi.product.name']}
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.6.0-14-generic root=UUID=be8601a9-912c-475f-a790-c973864eb61f ro quiet splash vt.handoff=7
ProcCmdline: /usr/sbin/plymouthd --mode=boot --pid-file=/run/plymouth/pid --attach-to-session
ProcEnviron:
LANG=C.UTF-8
PATH=(custom, no user)
ProcFB: 0 hyperv_fb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.6.0-14-generic root=UUID=be8601a9-912c-475f-a790-c973864eb61f ro quiet splash vt.handoff=7
SegvAnalysis:
Segfault happened at: 0x766b66f5aeab <ply_input_device_get_keymap+27>: mov 0x40(%rdi),%rdi
PC (0x766b66f5aeab) ok
source "0x40(%rdi)" (0x00000040) not located in a known VMA region (needed readable region)!
destination "%rdi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: plymouth
StacktraceTop:
ply_input_device_get_keymap () from /lib/x86_64-linux-gnu/libply-splash-core.so.5
?? () from /usr/lib/x86_64-linux-gnu/plymouth/renderers/frame-buffer.so
ply_keymap_icon_new () from /lib/x86_64-linux-gnu/libply-splash-graphics.so.5
?? () from /usr/lib/x86_64-linux-gnu/plymouth/two-step.so
?? () from /lib/x86_64-linux-gnu/libply-splash-core.so.5
TextPlymouth: /usr/share/plymouth/themes/ubuntu-text/ubuntu-text.plymouth
Title: plymouthd crashed with SIGSEGV in ply_input_device_get_keymap()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
dmi.bios.date: 04/06/2022
dmi.bios.release: 4.1
dmi.bios.vendor: Microsoft Corporation
dmi.bios.version: Hyper-V UEFI Release v4.1
dmi.board.asset.tag: None
dmi.board.name: Virtual Machine
dmi.board.vendor: Microsoft Corporation
dmi.board.version: Hyper-V UEFI Release v4.1
dmi.chassis.asset.tag: 4565-7867-8475-0140-6079-1274-47
dmi.chassis.type: 3
dmi.chassis.vendor: Microsoft Corporation
dmi.chassis.version: Hyper-V UEFI Release v4.1
dmi.modalias: dmi:bvnMicrosoftCorporation:bvrHyper-VUEFIReleasev4.1:bd04/06/2022:br4.1:svnMicrosoftCorporation:pnVirtualMachine:pvrHyper-VUEFIReleasev4.1:rvnMicrosoftCorporation:rnVirtualMachine:rvrHyper-VUEFIReleasev4.1:cvnMicrosoftCorporation:ct3:cvrHyper-VUEFIReleasev4.1:skuNone:
dmi.product.family: Virtual Machine
dmi.product.name: Virtual Machine
dmi.product.sku: None
dmi.product.version: Hyper-V UEFI Release v4.1
dmi.sys.vendor: Microsoft Corporation
separator:

Tags:

Revision history for this message

Adam K (localdadmin) wrote on 2024-01-22:

BootLog.txt Edit (23.8 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (47.6 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (3.5 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (1.3 KiB, text/plain; charset="utf-8")
EtcDefaultGrub.txt Edit (1.5 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (14.0 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (1.2 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (3.7 KiB, text/plain; charset="utf-8")
ProcMaps.txt Edit (9.3 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (2.9 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (1.4 KiB, text/plain; charset="utf-8")
Registers.txt Edit (1.1 KiB, text/plain; charset="utf-8")
Stacktrace.txt Edit (1.7 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (1.7 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (112.8 KiB, text/plain; charset="utf-8")
acpidump.txt Edit (580.0 KiB, text/plain; charset="utf-8")

Revision history for this message

Apport retracing service (apport) wrote on 2024-01-22:

StacktraceTop:
ply_input_device_get_keymap (input_device=0x0) at ../src/libply-splash-core/ply-input-device.c:502
get_keymap (backend=0x5c8077dc0080) at ../src/plugins/renderers/frame-buffer/plugin.c:867
ply_keymap_icon_fill_keymap_info (keymap_icon=0x5c8077dc53a0) at ../src/libply-splash-graphics/ply-keymap-icon.c:93
ply_keymap_icon_new (display=display@entry=0x5c8077dbced0, image_dir=0x5c8077d92020 "/usr/share/plymouth/themes//spinner") at ../src/libply-splash-graphics/ply-keymap-icon.c:135
view_new (display=0x5c8077dbced0, plugin=0x5c8077ddf710) at ../src/plugins/splash/two-step/plugin.c:249

Revision history for this message

Apport retracing service (apport) wrote on 2024-01-22: Stacktrace.txt

Stacktrace.txt Edit (9.1 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2024-01-22: StacktraceSource.txt

StacktraceSource.txt Edit (12.9 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2024-01-22: ThreadStacktrace.txt

ThreadStacktrace.txt Edit (9.1 KiB, text/plain)

Changed in plymouth (Ubuntu):
importance:	Undecided → Medium
tags:	removed: need-amd64-retrace

Revision history for this message

Launchpad Janitor (janitor) wrote on 2024-01-31:

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in plymouth (Ubuntu):
status:	New → Confirmed

Daniel van Vugt (vanvugt) on 2024-01-31

information type:	Private → Public
tags:	added: regression-release

Steve Langasek (vorlon) on 2024-01-31

tags:

removed: regression-release

Bug Watch Updater (bug-watch-updater) on 2024-01-31

Changed in plymouth:
status:	Unknown → New

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2024-02-01:

Fixed upstream (though not fully tested):
https://gitlab.freedesktop.org/plymouth/plymouth/-/merge_requests/304

tags:

added: fixed-upstream

Daniel van Vugt (vanvugt) on 2024-02-01

Changed in plymouth (Ubuntu):
assignee:	nobody → Daniel van Vugt (vanvugt)

Daniel van Vugt (vanvugt) on 2024-02-01

Changed in plymouth (Ubuntu):
status:	Confirmed → In Progress

Revision history for this message

Daniel van Vugt (vanvugt) wrote on 2024-02-01 (last edit on 2024-02-01):

plymouth_23.360.11-0ubuntu3.debdiff Edit (5.7 KiB, text/plain)

Fix for noble attached.

Also confirmed the crash is fixed for me.

Revision history for this message

Sebastien Bacher (seb128) wrote on 2024-02-01:

Thanks for the patch Daniel, I've uploaded it now

Changed in plymouth (Ubuntu):
status:	In Progress → Fix Committed

Bug Watch Updater (bug-watch-updater) on 2024-02-01

Changed in plymouth:
status:	New → Fix Released

Revision history for this message

Launchpad Janitor (janitor) wrote on 2024-02-01:

#10

This bug was fixed in the package plymouth - 23.360.11-0ubuntu3

---------------
plymouth (23.360.11-0ubuntu3) noble; urgency=medium

  * Add renderers-Do-not-assume-all-keyboards-have-LEDs.patch to avoid
    plymouthd from segfaulting on some systems, resulting in missing
    splash screens. (LP: #2050743)

-- Daniel van Vugt <email address hidden> Thu, 01 Feb 2024 11:18:08 +0800