[systemd-devel] Antw: [EXT] I/O error on "systemctl kill -s HUP rsyslog.service"

[Andrei Borzenkov]

13.08.2020 09:54, Harald Dunkel пишет:
> On 8/12/20 2:16 PM, Andrei Borzenkov wrote:
>> 12.08.2020 14:03, Harald Dunkel пишет:
>>> See attachment. Hope this helps
>>> Harri
>>
>>
>>> 1     openat(AT_FDCWD,
>>> "/sys/fs/cgroup/unified/system.slice/rsyslog.service/cgroup.procs",
>>> O_RDONLY|O_CLOEXEC) = 24
>>> 1     read(24, "0\n1544456\n", 4096)    = 10
>>
>>
>> kernel returns "0" as process number in this cgroup which results in EIO
>> returned by systemd.
> 

systemd should really clearly log this (invalid PID and and in which
cgroup it was). Returning generic error message without any indication
what caused this error is not useful at all.