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

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[CCing a few people that afaics were involved in trying to fix the CIFS
problems on 5.15/5.10 (to be honest I lost a bit track of that
situation; sorry if I added too many people; at the same time I hope I
did not forget anyone...)]

Anyway: it seems 5.15.149 created a new CIFS problem, see the quoted
mail below for details. Ciao, Thorsten

On 26.02.24 15:28, Mohamed Abuelfotoh, Hazem wrote:
> On 23/02/2024 06:14, Linux regression tracking #update (Thorsten
> Leemhuis) wrote:
>
>> 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.
> 
> 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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