"malloc(): unaligned tcache chunk detected" does not appear on my PC.
I am trying to install from an iso of hippo on a thumb drive. The boot fails before any 'live session' appears. I am not trying to install from a live session, boot fails before that point. I do not think this is the same as the bug reported here. Rik it appears is attemptig to boot from a live session of some sort. My installation breaks down before reaching this point. The iso in the daily build was not failing until some time in March. It has not been right since. There were a number of updates on a regular basis in March. The change is in the boot process rather than in actual installation as the installation has not been begun at the point the bug occurs. I'm no programmer but I can see that installation has not been offered, let alone begun when things go astray. Please review any conclusions so far. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. 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: Confirmed Status in ubiquity package in Ubuntu: Confirmed Status in mesa source package in Hirsute: Confirmed 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1920665/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
