Re: mpt2sas driver behaving strange with a failed SATA disk behind SAS expander.

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Le 17 août 2011 07:25, Fredrik Lindgren <fli@xxxxxxxx> a écrit :
> When doing disk IO on the disks (they are all configured in MD raids)
> suddenly IO will
> stop and these messages are printed on the console about once every second:
>
> mpt2sas0: log_info(0x31110610): originator(PL), code(0x11), sub_code(0x0610)
>
> From what I understand this means:
>
> PL_LOGINFO_CODE_RESET (0x00110000)
> PL_LOGINFO_SUB_CODE_SATA_NON_NCQ_RW_ERR_BIT_SET (0x00000600)
>
> So a disk is acting up, generating errors? What does the last "10" mean in
> the sub_code,
> is that an identifier for which disk it is?

no, the bottom bts are still part of the error code.

i haven't run w/ your exact fw/driver setup, but i think you'll find
that you're in a 'loop' where the driver is returning DID_RESET and
the scsi layer is retrying w/o going through the retry counter logic
(the command that fails is one that the firmware issued).

\p
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