Re: dNFS is kicking my ass

From: Stefan Koehler <contact_at_soocs.de>
Date: Tue, 24 Oct 2023 11:10:53 +0200 (CEST)
Message-ID: <1235564712.419785.1698138653734_at_ox.hosteurope.de>


Hello Doug,
I didn't invest much time into the research but did a quick crosscheck with 19.3 in my lab.

The error message seems to be populated by kgnfs_format_nfserror() (in case of 0x16) and the call graph to this function looks like this ...

... -> kgnfs_get_fsinfo() -> kgnfs_format_nfserror() -> kgnfswrf() ... -> kgnfs_processmsg() -> kgnfs_format_nfserror() -> kgnfswrf()

... the "problem" with static research here is that kgnfs_get_fsinfo() calls kgnfsexecnfsproc() and if its RC != 0 then kgnfs_format_nfserror() is called - so for further troubleshooting I would run PinTools for one (failed) mount attempt and check what's going on in kgnfsexecnfsproc().

Best Regards
Stefan Koehler

Independent Oracle performance consultant and researcher Website: www.soocs.de
Twitter: _at_OracleSK

> DOUG KUSHNER <dougk5_at_cox.net> hat am 23.10.2023 22:28 CEST geschrieben:
>
> Some curious lines from alert and trace files:
> Direct NFS: NFSERR 22 Invalid or unsupported argument. Server unity_sp_b path 10.1.7.41 (Did not get a similar error for unity_sp_a)
>
> TIA for your assistance.
> Doug

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Received on Tue Oct 24 2023 - 11:10:53 CEST

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