Re: NFSD threads hang when destroying a session or client ID

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Baptiste PELLEGRIN writes via Kernel.org Bugzilla:

(In reply to Chuck Lever from comment #9)
> 
> The server generates a CB_RECALL_ANY message for each active client. If the
> number of active clients increases from zero at server boot time to a few
> dozen, that would also explain why you see more of these over time.

This mean that something can stay active overnight ? In my case, no client are running outside opening hour. They are all suspended or power off.

> 
> "-e sunrpc:xprt_reserve" for example would help us match the XIDs in the
> callback operations to the messages you see in the server's system journal.


I will try to help you I much as I can. Is not really a problem for me to run trace-cmd on all clients as they are all managed with Puppet. I will try as soon as possible.

You confirm to me that I need to run "trace-cmd record -e sunrpc:xprt_reserve" on all my clients ? No more flags ?

Did you see that I have added the "-e sunrpc:svc_xprt_detach -p function -l nfsd4_destroy_session" flags in my last recorded trace ? Do I need to add new one for the next crash ?

I will also send to you the dump of current kernel task next time.

Regards,

Baptiste.

View: https://bugzilla.kernel.org/show_bug.cgi?id=219710#c13
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