[Bug 1920665] Re: Ubiquity KDE crash on try/install and from live session with "malloc(): unaligned tcache chunk detected"

Wed Mar 24 09:48:38 UTC 2021

I have attempted to install from

kubuntu hirsute daily build 21-03-22
kubuntu hirsute daily build 21-03-23
kubuntu hirsute daily build 21-03-24

each version the insstallation fails.

Incidentally I noticed another change.

While the daily builds were installing correctly a procedure appeared on
screen, this no longer happens.

After booting the installation media, a self check ran with an on screen
display showing the stages the check was passing through.

The word Kubuntu appeared on screen and this display was beneath it.

Since the installation began to fail, the file check no longer shows and
although the word Kubuntu appears it disappears shortly after.

As it changed when installation began to fail, maybe there is a
connection?

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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.

  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.

  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 If more than one person will use this computer, you can set up multiple accounts after installation.
 TEXT Enter the same password twice, so that it can be checked for typing errors.
 TEXT The name it uses when it talks to other computers.
 TEXT Enter the same password twice, so that it can be checked for typing errors.
 TEXT Enter the same password twice, so that it can be checked for typing errors.
 TEXT If more than one person will use this computer, you can set up multiple accounts after installation.
 TEXT Enter the same password twice, so that it can be checked for typing errors.
 TEXT The name it uses when it talks to other computers.
 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 If more than one person will use this computer, you can set up multiple accounts after installation.
 TEXT Enter the same password twice, so that it can be checked for typing errors.
 TEXT The name it uses when it talks to other computers.
 TEXT Enter the same password twice, so that it can be checked for typing errors.
 malloc(): unaligned tcache chunk detected

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