ubiquity-dm crashed with SIGSEGV in PyObject_Vectorcall()

[Bernard Stafford]

Edubuntu 23.04 Daily Build 20230307 Ubiquity crashed during QA Testing.
Firefox crashed during this bug report, then reloaded info sent to Firefox.
Installed in Virtual Box.

ProblemType: Crash
DistroRelease: Ubuntu 23.04
Package: ubiquity 23.04.4
ProcVersionSignature: Ubuntu 6.1.0-16.16-generic 6.1.6
Uname: Linux 6.1.0-16-generic x86_64
ApportVersion: 2.26.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.480
Date: Tue Mar 7 14:23:08 2023
ExecutablePath: /usr/bin/ubiquity-dm
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/edubuntu.seed maybe-ubiquity quiet splash ---
InterpreterPath: /usr/bin/python3.11
LiveMediaBuild: Edubuntu 23.04 "Lunar Lobster" - Alpha amd64 Binary-1 (20230307)
ProcCmdline: /usr/bin/python3 /usr/bin/ubiquity-dm vt1 :0 ubuntu /usr/bin/ubiquity --greeter --only
ProcEnviron:
 LANG=C.UTF-8
 PATH=(custom, no user)
Python3Details: /usr/bin/python3.11, Python 3.11.1, python3-minimal, 3.11.1-3
PythonDetails: N/A
SegvAnalysis:
 Segfault happened at: 0x4f754a: mov 0x8(%rax),%rdx
 PC (0x004f754a) ok
 source "0x8(%rax)" (0x4678280d813b9af4) not located in a known VMA region (needed readable region)!
 destination "%rdx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: ubiquity
StacktraceTop:
 ?? ()
 PyObject_Vectorcall ()
 _PyEval_EvalFrameDefault ()
 ?? ()
 PySequence_Tuple ()
Title: ubiquity-dm crashed with SIGSEGV in PyObject_Vectorcall()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: N/A
separator:

[Apport retracing service (apport)]

StacktraceTop:
 Py_TYPE (ob=0x4678280d813b9aec) at ../Include/object.h:133
 Py_IS_TYPE (type=0x95fb20 <PyBytes_Type>, ob=0x4678280d813b9aec) at ../Include/object.h:150
 PyObject_TypeCheck (type=0x95fb20 <PyBytes_Type>, ob=0x4678280d813b9aec) at ../Include/object.h:263
 descr_check (obj=0x4678280d813b9aec, descr=0x7fa78d697fb0) at ../Objects/descrobject.c:94
 method_check_args (kwnames=0x0, nargs=2, args=0x7fa78db22a30, func=0x7fa78d697fb0) at ../Objects/descrobject.c:285

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
https://iso.qa.ubuntu.com/qatracker/reports/bugs/2009607

[Bernard Stafford (bernard010)]

2nd install Edubuntu passed.
3rd install Edubuntu bootloader failed.
Daily Build 20230307 QA Testing.
Including screenshot of bootloader failure.
Used automatic install entire disk method.
All testing using same download.

[Apport retracing service (apport)]

Thank you for your report!

However, processing it in order to get sufficient information for the
developers failed as the report has a core dump which is invalid. The
corruption may have happened on the system which the crash occurred or during
transit.

Thank you for your understanding, and sorry for the inconvenience!