Help needed with autopkgtest for cppcheck on ppc64el

[Joachim Reichel <joachim.reichel@posteo.de>]

Hi,

I need some advice how to proceed with
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1099986

I've been unable to reproduce the crash on platti (testing and sid).

In testing the autopkgtest fails since the upload of gcc-14 14.2.0-14:
https://ci.debian.net/packages/c/cppcheck/testing/ppc64el/
For sid there is less data, but a matching date range:
https://ci.debian.net/packages/c/cppcheck/unstable/ppc64el/

I've also run the test suite with valgrind. There is a report about "conditional 
jump or move depends on uninitialized value(s)" that *could* be related to the 
crash, judging from the test output up to that point. The location is 
lib/vfvalue.h:163, but as far as I can see that member is always initialized 
from lib/vfvalue.h:317. For completeness, there are more reports of that 
location for the earlier tests, apparently without any bad consequences.

Is there a way to tell autopkgtest to generate a core dump and a stack trace 
from it?

Best regards,
  Joachim

P.S.: Please CC: me on replies.