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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