On Tue, Jan 04, 2022 at 01:47:05PM -0600, Eric W. Biederman wrote:
> Currently I suspect changing wait_event_uninterruptible to
> wait_event_killable, is causing problems.
>
> Or perhaps there is some reason tasks that have already entered do_exit
> need to have fatal_signal_pending set. (The will have
> fatal_signal_pending set up until they enter get_signal which calls
> do_group_exit which calls do_exit).
>
> Which is why I am trying to reproduce the reported failure so I can get
> the kernel to tell me what is going on. If this is not resolved quickly
> I won't send you this change, and I will pull it out of linux-next.
It would have been good if you would have removed this from linux-next
already.
Anyway, now I also had to spend quite some time to bisect why several test
suites just hang with linux-next. It's probably because of holidays that
you didn't get more bug reports.
On s390
- ltp
- elfutils selftests
- seccomp kernel selftests
hang with linux-next.
I bisected the problem to this patch using elfutils selftests:
git clone git://sourceware.org/git/elfutils.git
cd elfutils
autoreconf -fi
./configure --enable-maintainer-mode --disable-debuginfod
make -j $(nproc) > /dev/null
cd tests
make -j $(nproc) check
Note: I actually didn't verify if this also causes ltp+seccomp selftests
to hang. I just assume it is the case.
