problem with mpd and libvirt

[Elan Ruusamäe]

On 15.12.2020 10:51, Jan Palus wrote:

> On 14.12.2020 23:19, Krzysztof Mrozowicz wrote:
>> Hi,
>> I upgraded my PLD installation with today's "ready" repo and just discovered
>> that two services I use started to segfault.
>>
>> libvirtd:
>> gru 14 23:06:34 oko libvirtd[22095]: internal error: Failed to start QEMU
>> binary /usr/bin/qemu-system-x86_64 for probing: qemu-system-x86_64:
>> /tmp/B.HHaAz_/BUILD/qemu-5.0.0/util/fdmon-io_uring.c:292:
>> fdmon_io_uring_wait: Assertion `ret >= 0' failed.
>> gru 14 23:06:34 oko libvirtd[22095]: Failed to probe capabilities for
>> /usr/bin/qemu-system-x86_64: internal error: Failed to start QEMU binary
>> /usr/bin/qemu-system-x86_64 for probing: qemu-system-x86_64:
>> /tmp/B.HHaAz_/BUILD/qemu-5.0.0/util/fdmon-io_uring.c:292:
>> fdmon_io_uring_wait: Assertion `ret >= 0' failed.
>>
>> mpd:
>> gru 14 23:16:49 oko systemd[1]: Starting Music Player Daemon...
>> gru 14 23:16:49 oko systemd-coredump[51998]: [🡕] Process 50078 (mpd) of user
>> 204 dumped core.
>>
>> If I can do anything to help to identify the problem, please let me know.
> mpd works fine for me but can you try upgrading mpd/qemu* to
> versions from th-test and see if it fixes your issues?

io_uring may be related to kernel, what is your kernel, glibc, liburing, 
qemu?