Re: [REGRESSION 6.1.70] system calls with CIFS mounts failing with "Resource temporarily unavailable"

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On 23/02/2024 06:14, Linux regression tracking #update (Thorsten Leemhuis) wrote:
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Thx. Took a while (among others because the stable team worked a bit
slower that usual), but from what Paulo Alcantara and Salvatore
Bonaccorso recently said everything is afaics now fixed or on track to
be fixed in all affected stable/longterm branches:
https://lore.kernel.org/all/ZdgyEfNsev8WGIl5@xxxxxxxxxxx/

If I got this wrong and that's not the case, please holler.

#regzbot resolve: apparently fixed in all affected stable/longterm
branches with various commits
#regzbot ignore-activity

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
That page also explains what to do if mails like this annoy you.



We are seeing CIFS mount failures after upgrading from v5.15.148 to v5.15.149, I have reverted eb3e28c1e8 ("smb3: Replace smb2pdu 1-element arrays with flex-arrays") and I no longer see the regression. It looks like the issue is also impacting v5.10.y as the mentioned reverted patch has also been merged to v5.10.210. I am currently running the CIFS mount test manually and will update the thread with the exact mount failure error. I think we should revert eb3e28c1e8 ("smb3: Replace smb2pdu 1-element arrays with flex-arrays") from both v5.15.y & v5.10.y until we come up with a proper fix on this versions, please note that if we will take this path then we will need to re-introduce. b3632baa5045 ("cifs: fix off-by-one in SMB2_query_info_init()") which has been removed from latest v5.10.y and v5.15.y releases.





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