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QNAP TS-410 repeatable ata error


I've recently installed Debian on a QNAP TS-410. Everything seems to 
work pretty well, except for the SATA controller. In a device like 
this, it's a pretty important piece of hardware :)

Everything works well up until a certain point. After a while the 
machine becomes unresponsive because of it's root file system being 
blocked by a failing ata link. It's (I think) the same problem that 
has been reported earlier, but unike that problem this crash is 

The easiest and fastest way to reproduce this error for me is to run a 
mkfs.ext4 on a newly created md RAID set. I've logged the console 
output[1] of the machine booting followed by my attempt to create a 
big filesystem.

# mdadm --create /dev/md0 --level=5 --raid-devices=4 ...etc.
# mkfs.ext4 -v -m .1 -b 4096 -E stride=32,stripe-width=64 /dev/md0

During the first few blocks of the mkfs the ata subsystem stops 

Because some people have reported a reboot fixes the problem, I've 
tried the same thing a second[2] time after both a cold and a warm 
reboot. The same problem keeps popping up.

I've already updated the kernel to 2.6.32-25 from testing, but as you 
can see in the logs, that didn't help. I'm out of ideas, so if anyone 
has an idea I could try, that'd be helpful.

[1] http://www.jrrzz.net/~jorrizza/qnap_ts-410_ata_failure.txt
[2] http://www.jrrzz.net/~jorrizza/qnap_ts-410_ata_failure_2.txt

Sent from my Sun Fire X2100M2

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