Re: ☠ Buildbot (Sourceware): elfutils - failed test (failure) (master)

[Mark Wielaard <mark@klomp.org>]

Hi,

On Tue, 2023-08-29 at 14:04 +0000, builder--- via Elfutils-devel wrote:
> A new failure has been detected on builder elfutils-centos-x86_64 while building elfutils.
> 
> Full details are available at:
>     https://builder.sourceware.org/buildbot/#builders/39/builds/216
> 
> Build state: failed test (failure)
> Revision: 2ba424d65adca45b799a3973d43ccaf4002cb833
> Worker: centos-x86_64
> Build Reason: (unknown)
> Blamelist: Xi Ruoyao <xry111@xry111.site>

This isn't caused by that commit.

> - 7: make check ( failure )
>     Logs:
>         - stdio: https://builder.sourceware.org/buildbot/#builders/39/builds/216/steps/7/logs/stdio
>         - test-suite.log: https://builder.sourceware.org/buildbot/#builders/39/builds/216/steps/7/logs/test-suite_log

Unfortunately this happens occasionally on this centos7 x86_64 setup.
The issue is that only the "child" thread can be unwound, but not the
main thread. I don't know why however, since it doesn't happen always.
It could be that the kernel generates a bad core file or that the main
thread is in a weird state (without unwind cfi) after the clone.

Cheers,

Mark