[Bug 2066995] Re: apport-gtk keeps prompting to report crashes in a loop

[Simon Chopin]

I've finally tracked down the permission issue:

In Jammy, we still have an old-school init script that's invoked to set
up the crash handler at the kernel level. As part of the script, there
an unconditional `chmod 1777 /var/run`. However, surprisingly, `chmod
1777` on a 3777 file will result in a 3777 file (that's actually
documented in the man page). To confirm, I straced the chmod execution,
and the syscall is fed 3777, so we can't even blame this on the kernel
;).

In the Lunar cycle we moved away from the init file to use a proper
service file instead (see https://github.com/canonical/apport/pull/38 ).
As part of this move, the `chmod(1)` call was translated into a Python
`os.chmod` call, which will do a straight syscall without the fancy
logic of chmod(1), with the end result of whoopsie being unable to read
Python crash files.

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Title:
  apport-gtk keeps prompting to report crashes in a loop

Status in apport package in Ubuntu:
  Confirmed

Bug description:
  /var/crash has the following contents:

  -rw-r----- 1 vorlon   vorlon   107490 May 23 16:05 _usr_bin_gourmand.1000.crash
  -rw-rw-r-- 1 vorlon   vorlon        0 May 23 16:06 _usr_bin_gourmand.1000.upload
  -rw------- 1 whoopsie whoopsie      5 May 23 16:07 _usr_bin_gourmand.1000.uploaded
  -rw-r----- 1 vorlon   vorlon    23647 May 23 13:57 _usr_bin_python-argcomplete-check-easy-install-script.1000.crash
  -rw-rw-r-- 1 vorlon   vorlon        0 May 23 13:59 _usr_bin_python-argcomplete-check-easy-install-script.1000.upload
  -rw------- 1 whoopsie whoopsie      5 May 23 13:59 _usr_bin_python-argcomplete-check-easy-install-script.1000.uploaded

  As seen, the .upload / .uploaded files were created within 2 minutes
  of each of the crashes.

  But after submitting the crash report for /usr/bin/python-argcomplete-
  check-easy-install-script, I left my desktop for a while.  I came back
  to find at least TWENTY dialogs prompting me to submit the same crash
  report.

  The only way to stop the system from creating more prompts is to
  remove these files from disk.

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: apport 2.28.1-0ubuntu3
  ProcVersionSignature: Ubuntu 6.8.0-31.31-generic 6.8.1
  Uname: Linux 6.8.0-31-generic x86_64
  NonfreeKernelModules: zfs
  ApportLog:
   
  ApportVersion: 2.28.1-0ubuntu3
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Thu May 23 16:06:43 2024
  InstallationDate: Installed on 2019-12-23 (1613 days ago)
  InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  PackageArchitecture: all
  SourcePackage: apport
  UpgradeStatus: Upgraded to noble on 2024-05-22 (1 days ago)

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