Re: [dm-devel] [Lsf] Notes from the four separate IO track sessions at LSF/MM

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 05/02/2016 12:28 PM, Laurence Oberman wrote:
Even in the case of the ib_srp, don't we also have to still run the
eh_timeout for each of the devices that has inflight requiring error
handling serially. This means we will still have to wait to get a
path failover until all are through the timeout.

Hello Laurence,

It depends. If a transport layer error (e.g. a cable pull) has been observed by the ib_srp driver then fast_io_fail_tmo seconds later the ib_srp driver will terminate all outstanding SCSI commands without waiting for the error handler to finish. If no transport layer error has been observed then at most (SCSI timeout) + (number of pending commands + 1) * 5 seconds later srp_reset_device() will have finished terminating all pending SCSI commands.

Bart.
--
To unsubscribe from this list: send the line "unsubscribe linux-block" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux RAID]     [Linux SCSI]     [Linux ATA RAID]     [IDE]     [Linux Wireless]     [Linux Kernel]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Device Mapper]

  Powered by Linux