[lustre-discuss] Reproducer for known Arm/X86 pagesize issue LU-17525

[Shaun Tancheff]

On 10/1/25 15:19, Tom Green via lustre-discuss wrote:
> Hi,
> 
> Currently experiencing, on rare occasions, hung IO activity where we 
> suspect is related to:
> 
> https://jira.whamcloud.com/browse/LU-17525 <https://urldefense.com/v3/ 
> __https://jira.whamcloud.com/browse/LU-17525__;!!NpxR! 
> htdOeS8P8g4PHzBcH65G_4DY52dNiVAnvVnbuSftCWx2JLNJRqb09DoT8OwvcXb02xFR-3b7gGHP6_lL23MI-YpaGvakGejz$>
> 
> We have aarch64 clients at 64k page sizes with x86 servers with 4kb 
> pagesize using Lustre 2.15 from HPE.  We see the same error reported in 
> the issue and would like an easy way to reproduce the issue so we can 
> check other similar storage systems.  Would a test have been added 
> somewhere to make sure the same issue is not encountered again in the 
> future?
> 
> Any advice would be appreciated

Quota?
This was landed to work around quota hitting a similar hang with quota:
https://jira.whamcloud.com/browse/LU-18691


LU-19180 is in progress to resolve the interop:
https://jira.whamcloud.com/browse/LU-19180


> Thanks.
> 
> 
> Tom
> 
> -- 
> 
> *Thomas Green*
> _AI Supercomputing Infrastructure Specialist_
> 
> University of Bristol, 1 Cathedral Square, Trinity Street, College 
> Green, Bristol
> BS1 5DD, UK
> 
> Tel:+441174550298 <tel:+441174550298>
> BriCS webpage: http://bristol.ac.uk/supercomputing <https:// 
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> 
> Top 10 UK university and 54th in the world (QS Rankings 2025)
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> 
> 
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