Package: src:qemu
Version: 1:7.2+dfsg-2
Severity: grave
X-Debbugs-Cc: none, Hilko Bengen <ben...@debian.org>
Dear Maintainer,
While investigating recent s390x build failures of libguestfs, I noticed
that variants of
qemu-img create -f qcow2 -o preallocation=metadata blank-disk-1s.qcow2 512
would hang in what appears a tight loop (100% CPU).
Calling strace on those hanging processes or sending them TSTP and CONT
signals causes them to continue.
Later in the build process, libguestfs-test-tool runs qemu-system-s390x
a few times. Those processes also hang and they can also be "cured" by
sending them TSTP and CONT signals.
Cheers,
-Hilko
