Date:	Wed, 03 Jan 2007 12:08:51 -0300
From:	Pablo Sebastian Greco <lkml@...agreco.com.ar>
To:	Tejun Heo <htejun@...il.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: SATA problems

Tejun Heo wrote:
> Pablo Sebastian Greco wrote:
>   
>> First of all, thanks for everything, and my excuses if I'm doing
>> anything wrong, this is my first lkml mail, but I've read all the faq,
>> so should be OK.
>> This is the machine with the problem:
>>
>> Intel ServerBoard S5000VSA
>> Dual Core Xeon 2.66 (Intel(R) Xeon(TM) CPU 2.66GHz stepping 04)
>> 4G Kingston
>> 1 Seagate 80G sata (ST380211AS) (sda)
>> 3 Samsung 250G sata (SAMSUNG SP2504C) (sdb,c,d)
>>
>> Installed distribution is FC6 x86_64
>>
>> I've been getting these messages with distribution and vanilla kernels
>>
>> Jan  1 16:29:08 squid kernel: ata4.00: exception Emask 0x0 SAct
>> 0x7fffffff SErr 0x0 action 0x2 frozen
>> Jan  1 16:29:08 squid kernel: ata4.00: cmd
>> 61/60:00:c9:6d:8e/00:00:0e:00:00/40 tag 0 cdb 0x0 data 49152 out
>> Jan  1 16:29:08 squid kernel:          res
>> 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout)
>> Jan  1 16:29:08 squid kernel: ata4.00: cmd
>> 60/08:08:f7:7d:56/00:00:0e:00:00/40 tag 1 cdb 0x0 data 4096 in
>> Jan  1 16:29:08 squid kernel:          res
>> 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
>> <snip>
>> Jan  1 16:29:08 squid kernel: ata4: soft resetting port
>> Jan  1 16:29:08 squid kernel: ata4: softreset failed (port busy but CLO
>> unavailable)
>> Jan  1 16:29:08 squid kernel: ata4: softreset failed, retrying in 5 secs
>> Jan  1 16:29:13 squid kernel: ata4: hard resetting port
>> Jan  1 16:29:21 squid kernel: ata4: port is slow to respond, please be
>> patient (Status 0x80)
>> Jan  1 16:29:43 squid kernel: ata4: port failed to respond (30 secs,
>> Status 0x80)
>> Jan  1 16:29:43 squid kernel: ata4: COMRESET failed (device not ready)
>> Jan  1 16:29:43 squid kernel: ata4: hardreset failed, retrying in 5 secs
>> Jan  1 16:29:48 squid kernel: ata4: hard resetting port
>> Jan  1 16:29:49 squid kernel: ata4: SATA link up 3.0 Gbps (SStatus 123
>> SControl 300)
>> Jan  1 16:29:49 squid kernel: ata4.00: configured for UDMA/133
>> Jan  1 16:29:49 squid kernel: ata4: EH complete
>> Jan  1 16:29:49 squid kernel: SCSI device sdd: 488397168 512-byte hdwr
>> sectors (250059 MB)
>> Jan  1 16:29:49 squid kernel: sdd: Write Protect is off
>> Jan  1 16:29:49 squid kernel: SCSI device sdd: write cache: enabled,
>> read cache: enabled, doesn't support DPO or FUA
>>
>> lots of them, and eventually crashing the system.
>> Tested from fc6 2.6.18 kernel to vanilla 2.6.20-rc2-mm1. Old kernels
>> just crash, newer ones log these things and then crash.
>> I don't want to flood with this mail with useless info, so please tell
>> me what to send and I'll do it (dmesg, smartctl... you name it)
>> BTW, memtest was running for about 2 days without errors, and and
>> badblocks on all 4 drives returned nothing. Reallocated_Sector_Ct
>> raw_value was 0 on all 4 drives
>>     
>
> Please post full dmesg and the result of 'lspci -nnvvv'.  And what do
> you mean by 'crash'?
>
>   
By crash I mean the whole system going down, having to reset the entire 
machine.
I'm sending you 4 files:
dmesg: current boot dmesg, just a boot, because no errors appeared after 
last crash, since the server is out of production right now (errors 
usually appear under heavy load, and this primarily a transparent proxy 
for about 1000 simultaneous users)
lspci: the way you asked for it
messages and messages.1: files where you can see old boots and crashes 
(even a soft lockup).
If there is anything else I can do, let me know. If you need direct 
access to the server, I can arrange that too.

Thanks.
Pablo.

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