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

[Ulrich Windl]

>>> Andrei Borzenkov <arvidjaar at gmail.com> schrieb am 13.08.2020 um 09:05 in
Nachricht <0ae86394-3dc0-71cf-818f-d746ba5ded00 at gmail.com>:
> 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.

Especially as there was no I/O error at all ;-) Maybe EINVAL or ESRCH would
have been a better error code.

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