On 10/19/2009 04:12 AM, Jan Christoph Uhde wrote:
Hi,
my net-book suffers serious disk freezes. I am using the ata_piix driver
fom the latest ubuntu karmic kernel and have tried almost everything i
could find .. every kernel option from force_pcs to .. acpi=.+ , pci=.+
and i would really like to keep acpi .. :(
Since google will not help this time i will ask here for help:
ata port 1 device 0
action = 0x6 i am to stupid to read the acton from libata.h:(
exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
cmd ca/00:28:67:b5:7e/00:00:00:00:00/e0 tag 0 dma 20480 out
res 40/00:00:00:00:00/00:00:00:00:00/40 Emask 0x4 (timeout)
status: { DRDY }
Unfortunately this error output is not all that useful as it just says
that a command (in this case a write) never completed. However, some of
the data from your SMART output is a bit odd:
199 UDMA_CRC_Error_Count 0x003e 200 253 000 Old_age Always - 20
So looks like you had some data transfer errors..
Error 20 occurred at disk power-on lifetime: 55 hours (2 days + 7 hours)
When the command that caused the error occurred, the device was active
or idle.
After command completion occurred, registers were:
ER ST SC SN CL CH DH
-- -- -- -- -- -- --
84 51 05 82 a9 11 e0 Error: ICRC, ABRT 5 sectors at LBA = 0x0011a982 =
1157506
Commands leading to the command that caused the error were:
CR FR SC SN CL CH DH DC Powered_Up_Time Command/Feature_Name
-- -- -- -- -- -- -- -- ---------------- --------------------
c8 00 08 7f a9 11 e0 08 00:04:19.791 READ DMA
ef 10 03 9e 3e 05 a0 08 00:04:11.675 SET FEATURES [Reserved for Serial ATA]
ea 00 00 9e 3e 05 a0 08 00:04:08.477 FLUSH CACHE EXIT
ca 00 08 97 3e 05 e9 08 00:04:08.476 WRITE DMA
ea 00 00 96 3e 05 a0 08 00:04:08.370 FLUSH CACHE EXIT
So the command failed due to a CRC error on the SATA link. There should
really be nothing the kernel or the driver could be doing that could
cause this on a SATA device. What's the model of this netbook? This
sounds like some kind of hardware issue to me..
I suspect that disabling ACPI only helps by coincidence (changes power
usage pattern or something) as it has a lot of effects on the system,
and isn't really a practical thing to do on any modern system because of
the amount of functionality that this disables..
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