RE: CIFS: Reconnect expired SMB sessions

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Attached patch that has gone through our automated tests and successfully recovered the session allowing the tests to complete successfully.

Thanks,

	Mark.

-----Original Message-----
From: linux-cifs-owner@xxxxxxxxxxxxxxx [mailto:linux-cifs-owner@xxxxxxxxxxxxxxx] On Behalf Of Mark Syms
Sent: 24 May 2018 09:09
To: Pavel Shilovsky <piastryyy@xxxxxxxxx>; Steve French <smfrench@xxxxxxxxx>
Cc: linux-cifs@xxxxxxxxxxxxxxx
Subject: RE: CIFS: Reconnect expired SMB sessions

Sorry, yes, that's what I meant by my question, i.e. would it be reasonable for this to be checking several status values and triggering a reconnect? (Which it seems it would be)

As I have a test suite which gives an about 1 in 10 reproduction of this error I' try tweaking this to consider SESSION_DELETED and see if that resolves the issue for us and then RFC a commit.

Thanks,

	Mark.

-----Original Message-----
From: linux-cifs-owner@xxxxxxxxxxxxxxx <linux-cifs-owner@xxxxxxxxxxxxxxx> On Behalf Of Pavel Shilovsky
Sent: 22 May 2018 19:25
To: Mark Syms <Mark.Syms@xxxxxxxxxx>; Steve French <smfrench@xxxxxxxxx>
Cc: linux-cifs@xxxxxxxxxxxxxxx
Subject: Re: CIFS: Reconnect expired SMB sessions

2018-05-22 5:51 GMT-07:00 Mark Syms <Mark.Syms@xxxxxxxxxx>:
> Should commit 511c54a2f69195b28afb9dd119f03787b1625bb4, (CIFS: Reconnect expired SMB sessions) also be considering STATUS_USER_SESSION_DELETED to be equivalent to STATUS_NETWORK_SESSION_EXPIRED and triggering a reconnect? We're seeing STATUS_USER_SESSION_DELETED occurring in some of our automated testing and it looks like the server has reaped the session due to it being idle for a period of time.
>
> Thanks,
>
>                 Mark.
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No. Currently we only reconnect on STATUS_NETWORK_SESSION_EXPIRED error code as a special case. It seems that we should consider making this check more generic by checking for STATUS_USER_SESSION_DELETED and possibly other error codes and reconnect.

--
Best regards,
Pavel Shilovsky
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Attachment: session_deleted.patch
Description: session_deleted.patch


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