linux-kernel - Re: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen

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Message-ID: <47105C53.7040603@lix-world.net>
Date:	Sat, 13 Oct 2007 07:49:07 +0200
From:	Steen Eugen Poulsen <sep@...-world.net>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	lists@...ted.dk, linux-kernel@...r.kernel.org,
	linux-ide@...r.kernel.org
Subject: Re: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen

Andrew Morton skrev:
> On Wed, 10 Oct 2007 10:28:45 +0200 (CEST)
> lists@...ted.dk wrote:
> 
>> I get this on brand new hardware, 2xHitachi Deathstar 320gb SATA2
>> (sata_via driver)

Sep 28 04:32:40 locker ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0
action 0x2 frozen
Sep 28 04:32:40 locker ata1.00: cmd b0/d2:f1:00:4f:c2/00:00:00:00:00/00
tag 0 cdb 0x0 data 123392 in
Sep 28 04:32:40 locker res 50/00:f1:00:4f:c2/00:00:00:00:00/00 Emask
0x202 (HSM violation)
Sep 28 04:32:41 locker  current size: 625140335 sectors

Sep 28 04:32:41 locker  native size: 625142448 sectors

Sep 28 04:32:41 locker  current size: 625140335 sectors

Sep 28 04:32:41 locker  native size: 625142448 sectors

Another machine:

Sep 28 03:47:55 dragonslair ata1.00: exception Emask 0x0 SAct 0x0 SErr
0x0 action 0x2 frozen
Sep 28 03:47:55 dragonslair ata1.00: cmd
b0/db:f8:00:4f:c2/00:00:00:00:00/00 tag 0 cdb 0x0 data 126976 in

Sep 28 03:47:55 dragonslair res 50/00:f8:00:4f:c2/00:00:00:00:00/00
Emask 0x202 (HSM violation)
Sep 28 03:47:55 dragonslair ata1: soft resetting port

Sep 28 03:47:55 dragonslair ata1.00: configured for UDMA/133

Sep 28 03:47:55 dragonslair ata1: EH complete

Sep 28 03:47:55 dragonslair sd 0:0:0:0: [sda] Write cache: enabled, read
cache: enabled, doesn't support DPO or FUA
Sep 28 03:47:55 dragonslair sd 0:0:0:0: [sda] 156250000 512-byte
hardware sectors (80000 MB)
Sep 28 03:47:55 dragonslair sd 0:0:0:0: [sda] Write Protect is off

Sep 28 03:47:55 dragonslair sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00

Sep 28 03:47:55 dragonslair sd 0:0:0:0: [sda] Write cache: enabled, read
cache: enabled, doesn't support DPO or FUA

And yet another:

Sep 28 04:33:52 liferaft kernel: ata1.00: exception Emask 0x0 SAct 0x0
SErr 0x0 action 0x2 frozen
Sep 28 04:33:55 liferaft kernel: ata1.00: cmd
b0/d2:f1:00:4f:c2/00:00:00:00:00/00 tag 0 cdb 0x0 data 123392 in
Sep 28 04:33:55 liferaft kernel:          res
50/00:f1:00:4f:c2/00:00:00:00:00/00 Emask 0x202 (HSM violation)
Sep 28 04:33:55 liferaft kernel: ata1: soft resetting port
Sep 28 04:33:55 liferaft kernel: ata1: SATA link up 3.0 Gbps (SStatus
123 SControl 300)
Sep 28 04:33:55 liferaft kernel: ata1.00: configured for UDMA/133
Sep 28 04:33:55 liferaft kernel: ata1: EH complete



Another few cases, taken from semi random locations from my log to get
the many different data, maybe some of it can help out.

Weirdness 1: I have 3 machines, that decide to spew this garbage within
the same second? (smartd running at it is around the hour that smartd
would run, but it's just this one day Sep 28 that horrible bad)

Note 1: Bad/failing hardware creates these type of errors.

Note 2: The hardware didn't freeze for me and I believe the freeze is do
to swap breaking due to the errors.

Note 3: dragonslair's harddisk actually crashed, kernel didn't die, it
just remounted read only. Reboot and the disk was missing, more reboot
and the machine started with all disks running again, been stable since
the 28th Sep. (knock on wood)

Note 4: I've changed hardware and kernel in a non controled manner, so I
was waiting for another case of these errors where I would be able to
write down kernel config.

I'm not sure, but I do believe that a keyword with this stuff is SMP and
2.6.22, older kernels doesn't seem to trigger this and non SMP seems to
avoid it with 2.6.22, but I can't trigger the error, so there is no way
of knowing if the conclusion can be trusted.

Dragonslair:
P4 x2 3.0 Ghz
Chips Intel 865GV & ICH5
32bit SMP kernel (2.6.22)
2 SATA disks WDC WD800JD-75MSA3
(I'm guessing this one has a physical bad disk, since it's the only one
the disk has physically failed and the only one with a worrying SMART
error: 1 Raw_Read_Error_Rate 0x000f 200 200 051 Pre-fail Always - 5)

Locker:
AMD 64x2
Chips Nvidia 570
32bit SMP kernel (2.6.22)
6 SATA disks 2xWD3200YS-01PGB0 4xWD3200AAKS-00TMA0

Liferaft:
AMD 64x2
Chips Nvidia 590
32bit SMP kernel (vserver 2.6.22 based)
1 SATA disk WD2500KS-00MJB0


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