Hey Salvatore. On Sat, 2025-02-01 at 14:52 +0100, Salvatore Bonaccorso wrote: > While looking at some NFS related bugs I noticed this one which was > unaswered, but reported against an old 6.1.y version. It still happens with 6.1.119-1. > 6.1.y version, then please reopen the bug and do remove the moreinfo > tag if you have an indepented reproducer of dCache, in which case it > might be considered a upstream problem, otherwise I would suggest you > first approach the dCache developers (it still could be a kernel > problem as dCache from a quick look is plain in userpace > components?). I rather doubt it's a dCache bug, or well, at least it used to work in older kernel versions as mentioned in the original report. Also, as you say, dCache is purely in userspace. > Please do attach the full boot log, after having triggered the > problem. There are no additional messages after the condition has been triggered. But I've attached the whole dmesg log. > If you can, try please as well a more recent version ideally the one > from unstable to verify the problem is still present there. That's a bit difficult, as these are production nodes in use for WLCG, I could only try doing so when we schedule the next downtime. When I just retried I also noticed that after Ctrl-C-ing the hanging mv it seems that dest file is kept, and the src file is gone (which I'd consider as data loss, caused by this issue). Cheers, Chris.
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