10.1 RC4 r273903 - zpool scrub on ssd mirror - ahci command timeout

[Olivier Cochard-Labbé]

On Thu, Nov 6, 2014 at 12:32 AM, Kai Gallasch <k at free.de> wrote:

>
> Hi.
>
> Not sure if this is 10.1 related or more a problem of the ssd
> model and/or ahci controller..
>
>
> I find the following kernel message in the output of 'dmesg': (after
> running zpool scrub two times)
>
>
> ahcich2: Timeout on slot 15 port 0
> ahcich2: is 00000000 cs 000f0000 ss 000f8000 rs 000f8000 tfd 40 serr
> 00000000 cmd 0024cf17 (ada2:ahcich2:0:0:0): READ_FPDMA_QUEUED. ACB: 60
> 8b a6 1d 56 40 0d 00 00 00 00 00 (ada2:ahcich2:0:0:0): CAM status:
> Command timeout (ada2:ahcich2:0:0:0): Retrying command
> ahcich2: Timeout on slot 23 port 0
> ahcich2: is 00000000 cs 0f000000 ss 0f800000 rs 0f800000 tfd 40 serr
> 00000000 cmd 0024d817 (ada2:ahcich2:0:0:0): READ_FPDMA_QUEUED. ACB: 60
> 1b 23 81 bc 40 06 00 00 00 00 00 (ada2:ahcich2:0:0:0): CAM status:
> Command timeout (ada2:ahcich2:0:0:0): Retrying command
> ahcich2: Timeout on slot 3 port 0
> ahcich2: is 00000000 cs 00000030 ss 00000038 rs 00000038 tfd 40 serr
> 00000000 cmd 0024c317 (ada2:ahcich2:0:0:0): READ_FPDMA_QUEUED. ACB: 60
> 26 bd 18 8e 40 12 00 00 00 00 00 (ada2:ahcich2:0:0:0): CAM status:
> Command timeout (ada2:ahcich2:0:0:0): Retrying command
>
>
Hi,

I meet the same "CAM status: Command timeout" problem since my upgrade from
10.0 to 10.1 on a HP ProLiant MicroServer (AMD SB7x0/SB8x0/SB9x0 SATA
Controller). A "zpool scrub" is a way for generating this error message but
writting big files (few GB) is another way too.