Peter Favrholdt writes:
> Hi Mikael & list,
>
> I have previously reported problems with my setup:
>
> SATA300TX4 + 4 Seagate Barracuda ES 500GB
>
> I just tested with 2.6.24. After copying approx 25GB of each drive using
> dd if=/dev/sd[abcd] of=/dev/null bs=1M
> sda failed with the following message:
>
> [ 1060.069489] ata1: SError: { 10B8B Dispar BadCRC TrStaTrns }
> [ 1060.069498] ata1.00: cmd 25/00:00:90:2c:e6/00:02:01:00:00/e0 tag 0
> dma 262144 in
> [ 1060.069501] res 40/00:28:00:00:00/00:00:00:00:00/40 Emask
> 0x4 (timeout)
>
> I have included lspci and dmesg output below.
>
> My system is rock solid using 2.6.21-rc2 with Mikael Pettersons 1.5Gbps
> patch.
...
> [ 1060.069478] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x1380000
> action 0x2 frozen
> [ 1060.069489] ata1: SError: { 10B8B Dispar BadCRC TrStaTrns }
> [ 1060.069498] ata1.00: cmd 25/00:00:90:2c:e6/00:02:01:00:00/e0 tag 0
> dma 262144 in
> [ 1060.069501] res 40/00:28:00:00:00/00:00:00:00:00/40 Emask
> 0x4 (timeout)
> [ 1060.069505] ata1.00: status: { DRDY }
> [ 1065.437567] ata1: port is slow to respond, please be patient (Status
> 0xff)
> [ 1070.114210] ata1: device not ready (errno=-16), forcing hardreset
> [ 1070.114219] ata1: hard resetting link
> [ 1076.320932] ata1: port is slow to respond, please be patient (Status
> 0xff)
> [ 1080.158924] ata1: COMRESET failed (errno=-16)
Mysterious. What you have there is a transmission error between the
controller and the disk, which is bad in and by itself, but then there's
a sequence of COMRESETs that fail to bring the port or disk back to life.
The original error is not a driver error but something caused by your
system, be it a dodgy cable, a poorly seated cable, or electrical
interference. But the failed COMRESETs is a concern as I've seen them
in other reports as well.
Me worried ...
So going back to 2.6.21-rc2 makes the system stable again? Can you do some
more testing to see at what point the system becomes less stable? I.e.,
2.6.21-rcI, 2.6.22, 2.6.22-rcJ, 2.6.23, or 2.6.24-rcJ?
FWIW, I just completed some testing of a 300 TX4 card with kernel 2.6.24,
including dd:s, fscks, mkfs:s, and copying about 400GB of data from one drive
(Samsung) to another (Seagate 7200.10) on that card, and I cannot seem to break it.
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