** Changed in: mesa (Ubuntu Hirsute)
Status: Confirmed => Opinion
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https://bugs.launchpad.net/bugs/1920665
Title:
Ubiquity KDE crash on try/install and from live session with
"malloc(): unaligned tcache chunk detected"
Status in mesa package in Ubuntu:
Opinion
Status in ubiquity package in Ubuntu:
Confirmed
Status in mesa source package in Hirsute:
Opinion
Status in ubiquity source package in Hirsute:
Confirmed
Bug description:
ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: ubiquity 21.04.11
ProcVersionSignature: Ubuntu 5.11.0-11.12-generic 5.11.0
Uname: Linux 5.11.0-11-generic x86_64
ApportVersion: 2.20.11-0ubuntu60
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.460
CurrentDesktop: KDE
Date: Sun Mar 21 11:53:44 2021
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/kubuntu.seed
maybe-ubiquity quiet splash ---
LiveMediaBuild: Kubuntu 21.04 "Hirsute Hippo" - Alpha amd64 (20210321)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)
Since approximately 16/03/2021 ubiquity from maybe-ubiquity (try
install screen) and from the live session is crashing on launch or
shortly after.
Cases where the crash can be triggered:
- Using a Virtualbox VM, where graphics acceleration is handled by mesa with
LLVMPIPE
- Start the ISO on real hardware in 'safe graphics mode'
Cases where the crash is not encountered:
- Start the ISO on real intel (HD graphics) hardware with full acceleration.
NOTE: The crash can be avoided by downgrading MESA 21.0.x packages to
the previous 20.3.4 in hirsute.
Try/Install crash:
Screen fails to start, or starts then crashes on any user action. The
user is presented with:
"Installation failed - The installer encountered an unrecoverable error.
A desktop session will now be run so that you may investigate the problem or
try installing again"
Live session crash:
The installer does not start from the desktop icon. Starting ubiquity
from the terminal results in an "Aborted (core dumped)" message and
nothing else.
The crash is most commonly "malloc(): unaligned tcache chunk
detected", but inevitably from this sort of memory issue can be
something like "realloc(): invalid next size"
An example /var/log/installer/debug log from a session where both
crashes were triggered is below.
**** /var/log/installer/debug ****
Ubiquity 21.04.11
TEXT <small>If more than one person will use this computer, you can set up
multiple accounts after installation.</small>
TEXT <small>Enter the same password twice, so that it can be checked for
typing errors.</small>
TEXT <small>The name it uses when it talks to other computers.</small>
TEXT <small>Enter the same password twice, so that it can be checked for
typing errors.</small>
TEXT <small>Enter the same password twice, so that it can be checked for
typing errors.</small>
TEXT <small>If more than one person will use this computer, you can set up
multiple accounts after installation.</small>
TEXT <small>Enter the same password twice, so that it can be checked for
typing errors.</small>
TEXT <small>The name it uses when it talks to other computers.</small>
QSocketNotifier: Invalid socket 17 and type 'Read', disabling...
QSocketNotifier: Invalid socket 17 and type 'Write', disabling...
QSocketNotifier: Invalid socket 17 and type 'Exception', disabling...
Your console font configuration will be updated the next time your system
boots. If you want to update it now, run 'setupcon' from a virtual console.
update-initramfs is disabled since running on read-only media
debconf: DbDriver "passwords" warning: could not open
/var/cache/debconf/passwords.dat: Permission denied
munmap_chunk(): invalid pointer
Ubiquity 21.04.11
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-kubuntu'
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-kubuntu'
QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-kubuntu'
TEXT <small>If more than one person will use this computer, you can set up
multiple accounts after installation.</small>
TEXT <small>Enter the same password twice, so that it can be checked for
typing errors.</small>
TEXT <small>The name it uses when it talks to other computers.</small>
TEXT <small>Enter the same password twice, so that it can be checked for
typing errors.</small>
malloc(): unaligned tcache chunk detected
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