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Various tests that use vgdb (the valgrind gdb bridge) and signals crash during the regtest run.

gdbserver_tests/nlsigvgdb                (stderr)
gdbserver_tests/nlsigvgdb                (stderrB)
gdbserver_tests/nlvgdbsigqueue           (stderr)
gdbserver_tests/nlvgdbsigqueue           (stdoutB)

The underlying problem is that valgrind doesn't track (unmaps) the vdso.
https://bugs.kde.org/show_bug.cgi?id=444481

There is an upstream patch available that fixes the vdso issue just for s390x (it  still doesn't really expose the vdso to the application, that would be a followup fix).

The fix is already being tested in fedora rawhide valgrind-3.18.1-7.fc36

Verified that nlsigvgdb and nlsigvgdbqueue tests fail with previous build valgrind-3.18.1-5.el9 but do not anymore with build valgrind-3.18.1-6.el9.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (new packages: valgrind), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:2401