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Asked: 2026-05-22T19:02:56+00:00

There are program named abrt (https://fedorahosted.org/abrt/) in Fedora and Fedora based distributions. It catches

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There are program named abrt (https://fedorahosted.org/abrt/) in Fedora and Fedora based distributions.
It catches fatal signals system wide, saves coredump and analyzes it.

  • How can abrt catch signals of other programs? As far as I know you can catch only signals to your process.
  • How abrt saves core file after it caught signal if ulimit -c is set to 0 by default?
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1 Answer

  1. Editorial Team

    It doesn’t catch signals, and it doesn’t read core files. Instead, ABRT uses /proc/sys/kernel/core_pattern to grab the core file as the kernel is generating it.

    $ cat /proc/sys/kernel/core_pattern 
|/usr/libexec/abrt-hook-ccpp /var/spool/abrt %p %s %u %c
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