Morning,

But what's interesting, the setting is actually decreased to 10 when
rootless container is run. So in theory I should be able to do similar
change explicitly unless I try to exceed upper limit, set for the
current host user.

Rgrds,

On 11/25/23 10:44, Михаил Иванов wrote:

Hallo,

Is it possible to get podman to propagate current host fs.mqueue.msg_max
value to rootless container? I can do that if I specify --ipc host when
running the container, but this also exposes other ipc stuff from host
to container, including shared memory, which I do not want.

If I specify --sysctl fs.mqueue.msg_size=64 to podman it gives me
"OCI permission denied" error, even when my host setting (256) is greater
than requested value.

Thanks,
-- 
Micvhael Ivanov

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The way you attempted is correct. Might not be allowed for rootless containers.

I attempted this in a rootful container and it blows up for me.

podman run  --sysctl fs.mqueue.msg_size=64 alpine echo hi
Error: crun: open `/proc/sys/fs/mqueue/msg_size`: No such file or directory: OCI runtime attempted to invoke a command that was not found

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