Message boards : Theory Application : Troubleshooting steps? Native work units fail within 30 seconds.
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niarbeht

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Message 46274 - Posted: 18 Feb 2022, 1:39:17 UTC

I'm able to run native ATLAS units just fine, but native Theory units fail with "Computation Error" within thirty seconds.

I have runc installed, I have CVMFS set up and working with the correct targets as specified in the setup guide, and have set the sysctl variables listed there, and I'm not sure what best steps to take next to troubleshoot the issue.

Interestingly, the "/sbin/create-boinc-cgroup" script fails for me, yelling that a bunch of files/directories weren't found.

For reference, I'm running Arch Linux, updated less than a week ago.
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maeax

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Message 46275 - Posted: 18 Feb 2022, 4:20:25 UTC

namespaces?
In this folder is a how to install -native.
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computezrmle
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Message 46276 - Posted: 18 Feb 2022, 7:55:28 UTC - in response to Message 46274.  

I'm running Arch Linux, updated less than a week ago.

Might be that your Linux update switched from using cgroup v1 to cgroup v2.

What your kernel supports can be checked with "grep cgroup /proc/filesystems".
Example output (if both are supported):
nodev   cgroup
nodev   cgroup2


What's currently in use can be checked with "grep ^cgroup /etc/mtab".
Example output (only cgroup2 is in use):
cgroup2 /sys/fs/cgroup cgroup2 rw,nosuid,nodev,noexec,relatime,nsdelegate,memory_recursiveprot 0 0



So far Theory native does not support cgroup v2 (and I don't know when the CERN developers have time to revise the scripts).
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Evangelos Katikos

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Message 46277 - Posted: 18 Feb 2022, 12:32:44 UTC - in response to Message 46276.  
Last modified: 18 Feb 2022, 12:33:26 UTC

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niarbeht

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Message 46278 - Posted: 18 Feb 2022, 12:52:32 UTC - in response to Message 46276.  
Last modified: 18 Feb 2022, 13:00:26 UTC

Yep, it's cgroups2.

EDIT: I'm gonna poke around and see if there are any serious implications to moving back to classic cgroups.

EDIT2: My home server is also running cgroups2, and given that it's a hypervisor, I'm just... not gonna mess with it. I'll turn Theory off for now. Hopefully things will get updated soon.
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Message boards : Theory Application : Troubleshooting steps? Native work units fail within 30 seconds.


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