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lib: crash handlers must be allowed on threads #18060

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eqvinox
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@eqvinox eqvinox commented Feb 7, 2025

You can have the prettiest crash handler on the planet, if you go and mask SIGSEGV on a thread before it segfaults… YOU GET NOTHING, YOU LOSE, GOOD DAY SIR.

(The process just up and hard exits.)

…let's see which of our CI systems don't recognize which of the signals I listed in here…

Blocking all signals on non-main threads is not the way to go, at least
the handlers for SIGSEGV, SIGBUS, SIGILL, SIGABRT and SIGFPE need to run
so we get backtraces.  Otherwise the process just exits.

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
@eqvinox eqvinox force-pushed the lib-crashlog-signals branch from 4d11601 to 13a6ac5 Compare February 7, 2025 12:37
@donaldsharp donaldsharp merged commit f64104b into FRRouting:master Feb 11, 2025
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eqvinox commented Feb 11, 2025

@Mergifyio backport dev/10.3 stable/10.2 stable/10.1 stable/10.0 stable/9.1 stable/8.4

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mergify bot commented Feb 11, 2025

backport dev/10.3 stable/10.2 stable/10.1 stable/10.0 stable/9.1 stable/8.4

✅ Backports have been created

@eqvinox eqvinox deleted the lib-crashlog-signals branch February 11, 2025 17:43
Jafaral added a commit that referenced this pull request Feb 12, 2025
lib: crash handlers must be allowed on threads (backport #18060)
Jafaral added a commit that referenced this pull request Feb 12, 2025
lib: crash handlers must be allowed on threads (backport #18060)
Jafaral added a commit that referenced this pull request Feb 12, 2025
lib: crash handlers must be allowed on threads (backport #18060)
Jafaral added a commit that referenced this pull request Feb 12, 2025
lib: crash handlers must be allowed on threads (backport #18060)
donaldsharp added a commit that referenced this pull request Feb 12, 2025
lib: crash handlers must be allowed on threads (backport #18060)
donaldsharp added a commit that referenced this pull request Feb 12, 2025
lib: crash handlers must be allowed on threads (backport #18060)
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2 participants