Re: [PATCH for 3.8 v3, resend 0/3] IB/SRP patches for kernel 3.8

[Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>]

On 02/06/13 22:42, Vu Pham wrote:
> Conclusion:
> 1. disable the port/path long enough >35 minutes, we have dangling scsi
> host.
> 2. enable the port within 30 minute, scsi host re-establish connection,
> path re-instate and then scsi_host was removed (no entry in sysfs)
>
> I attached a log here to show what happened above.

Hello Vu,

I found the following in the attached logs:

[ ... ]
Feb  6 19:24:25 vsa30 kernel: scsi host10: ib_srp: SRP reset_host called
[ ... ]
Feb  6 19:25:28 vsa30 kernel: scsi host10: SRP abort called
[ ... ]

It is easy to see in patch 3/3 that srp_reset_host() invokes 
srp_reconnect_target() unconditionally and that that last function kills 
all outstanding requests via srp_reset_req(). So to me the above output 
means that the attached logs were generated by a kernel missing at least 
patch 3/3. This means that the above conclusions are invalid.

I think it is also worth mentioning here that I asked Mellanox two 
months ago via private e-mail to provide me access to a setup on which 
this issue can be reproduced and on which I can recompile the kernel 
myself. However, such access was never provided.

Bart.
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