From: Mark Lord <liml@rtr.ca>
To: Yan Seiner <yan@seiner.com>
Cc: linux-ide@vger.kernel.org
Subject: Re: Backplane mystery
Date: Thu, 26 Feb 2009 10:34:27 -0500 [thread overview]
Message-ID: <49A6B683.9060806@rtr.ca> (raw)
In-Reply-To: <49A6B441.8010605@seiner.com>
Yan Seiner wrote:
> I have an external enclosure with an SATA backplane with 20 drive
> slots. I am using 4 port multipliers to drive all 20 slots.
>
> One set of 5 slots connected to a single port multiplier always fails with
>
> [ 16.449673] ata2: FORCE: PHY spd limit set to 1.5Gbps
> [ 16.449740] ata2: SATA max UDMA/100 host m128@0xfdeff000 port
> 0xfdefa000 irq 16
> [ 20.616038] ata2: SATA link down (SStatus 0 SControl 10)
> [ 80.596644] ata2: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0xe
> frozen
> [ 80.596956] ata2: irq_stat 0x00a00080, device exchanged
> [ 80.597039] ata2: hard resetting link
> [ 90.604024] ata2: softreset failed (timeout)
> [ 90.604108] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 10)
> [ 90.604183] ata2: link online but device misclassified, retrying
> [ 90.604264] ata2: hard resetting link
> [ 100.604026] ata2: softreset failed (timeout)
> [ 100.604109] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 10)
> [ 100.604186] ata2: link online but device misclassified, retrying
> [ 100.604259] ata2: hard resetting link
> [ 135.612026] ata2: softreset failed (timeout)
> [ 135.612109] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 10)
> [ 135.612191] ata2: link online but device misclassified, retrying
> [ 135.612273] ata2: hard resetting link
> [ 140.616024] ata2: softreset failed (timeout)
> [ 140.616107] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 10)
> [ 140.616183] ata2: link online but device misclassified, device
> detection might fail
> [ 140.616296] ata2: EH complete
>
> I've swapped cables, port multipliers, and so on. It's not the
> backplace, as I can swap cables from one of the port multipliers that
> works and it will detect drives. It's not the port multiplier, as I've
> swapped those. The only thing I can think of is that it's failing
> initialization. If I swap cables from a port multiplier that's
> initialized while the system is running, it works.
>
> Before I start taking random actions, can someone interpret the above
> for me? What's it telling me?
>
> For comparison, here's the initialization sequence from the adjacent
> port multiplier:
>
> [ 16.449504] ata1: FORCE: PHY spd limit set to 1.5Gbps
> [ 16.449571] ata1: SATA max UDMA/100 host m128@0xfdeff000 port
> 0xfdef8000 irq 16
> [ 18.536033] ata1: SATA link down (SStatus 0 SControl 10)
> [ 19.374191] ata10: SATA max UDMA/133 cmd 0xbc00 ctl 0xb800 bmdma
> 0xb408 irq 21
> [ 80.596647] ata1: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0xe
> frozen
> [ 80.596649] ata1: irq_stat 0x00a00080, device exchanged
> [ 80.596653] ata1: hard resetting link
> [ 82.796045] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 10)
> [ 82.796408] ata1.15: Port Multiplier 1.1, 0x1095:0x3726 r23, 6 ports,
> feat 0x1/0x9
> [ 82.796796] ata1.00: hard resetting link
> [ 83.116406] ata1.00: SATA link down (SStatus 0 SControl 10)
> [ 83.116482] ata1.01: hard resetting link
> [ 83.436402] ata1.01: SATA link down (SStatus 0 SControl 310)
> [ 83.436479] ata1.02: hard resetting link
> [ 83.756394] ata1.02: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> [ 83.756467] ata1.03: hard resetting link
> [ 84.076432] ata1.03: SATA link down (SStatus 0 SControl 310)
> [ 84.076510] ata1.04: hard resetting link
> [ 84.396387] ata1.04: SATA link down (SStatus 0 SControl 310)
> [ 84.396465] ata1.05: hard resetting link
> [ 84.716330] ata1.05: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
> [ 84.828010] ata1.02: failed to IDENTIFY (I/O error, err_mask=0x11)
> [ 84.828082] ata1.15: hard resetting link
> [ 84.828145] ata1: controller in dubious state, performing PORT_RST
> [ 87.060032] ata1.15: SATA link up 1.5 Gbps (SStatus 113 SControl 10)
> [ 87.060351] ata1.00: hard resetting link
> [ 87.380330] ata1.00: SATA link down (SStatus 0 SControl 10)
> [ 87.380404] ata1.01: hard resetting link
> [ 87.700329] ata1.01: SATA link down (SStatus 0 SControl 310)
> [ 88.756028] ata1.02: hard resetting link
> [ 89.076366] ata1.02: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> [ 89.716017] ata1.05: hard resetting link
> [ 90.036392] ata1.05: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
> [ 90.148021] ata1.02: failed to IDENTIFY (I/O error, err_mask=0x11)
> [ 90.148104] ata1.15: hard resetting link
> [ 90.148177] ata1: controller in dubious state, performing PORT_RST
> [ 92.380043] ata1.15: SATA link up 1.5 Gbps (SStatus 113 SControl 10)
> [ 92.380415] ata1.00: hard resetting link
> [ 92.700329] ata1.00: SATA link down (SStatus 0 SControl 10)
> [ 92.700398] ata1.01: hard resetting link
> [ 93.020334] ata1.01: SATA link down (SStatus 0 SControl 310)
> [ 94.076081] ata1.02: hard resetting link
> [ 94.396398] ata1.02: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
> [ 94.396479] ata1.03: hard resetting link
> [ 94.716392] ata1.03: SATA link down (SStatus 0 SControl 310)
> [ 94.716465] ata1.04: hard resetting link
> [ 95.036397] ata1.04: SATA link down (SStatus 0 SControl 310)
> [ 95.036474] ata1.05: hard resetting link
> [ 95.356426] ata1.05: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
> [ 95.369116] ata1.02: ATA-8: Hitachi HDT721010SLA360, ST6OA31B, max
> UDMA/133
> [ 95.369193] ata1.02: 1953525168 sectors, multi 0: LBA48 NCQ (depth
> 31/32)
> [ 95.370256] ata1.02: configured for UDMA/100
> [ 95.370769] ata1: EH complete
>
> If I swap cables from ata1 to ata2 while the system is running, the
> backplane will detect drives and work fine.
>
> I'm already forcing a slower speed:
>
> yan@selene:/etc/modprobe.d$ cat libata
> options libata force=1.15:1.5Gbps,2.15:1.5Gbps,3.15:1.5Gbps,4.15:1.5Gbps
>
> I'm using a Sil 3132 controller:
>
> 02:00.0 Mass storage controller: Silicon Image, Inc. SiI 3132 Serial ATA
> Raid II Controller (rev 01)
>
> The system sees 3 port multipliers; not 4 as it should:
>
> [ 82.488354] ata4.15: Port Multiplier 1.1, 0x1095:0x3726 r23, 6 ports,
> feat 0x1/0x9
> [ 82.488507] ata3.15: Port Multiplier 1.1, 0x1095:0x3726 r23, 6 ports,
> feat 0x1/0x9
> [ 82.796408] ata1.15: Port Multiplier 1.1, 0x1095:0x3726 r23, 6 ports,
> feat 0x1/0x9
>
> I suspect it's cabling length as the 5 "dead" slots are the farthest
> down the backplane but swapping cables randomly just doesn't seem like a
> good approach.
>
> What's my next step?
..
Perhaps try a different chipset controller card,
in hope that it will have stronger drive capability?
next prev parent reply other threads:[~2009-02-26 15:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-26 15:24 Backplane mystery Yan Seiner
2009-02-26 15:34 ` Mark Lord [this message]
2009-02-27 15:39 ` Yan Seiner
2009-03-02 8:46 ` Tejun Heo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=49A6B683.9060806@rtr.ca \
--to=liml@rtr.ca \
--cc=linux-ide@vger.kernel.org \
--cc=yan@seiner.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.