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SubjectRe: [2.6.28-rc] Sata soft reset filling log
Hello,

Justin Madru wrote:
> I've been testing .28 (currently -rc8) and I've noticed in the logs a
> massive amount of the following.
> I can confirm that the messages doesn't appear when booting into a .27
> kernel.
>
> ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
> ata2.00: ST_FIRST: !(DRQ|ERR|DF)
> ata2.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0
> cdb 1e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> res 50/00:01:00:00:00/00:00:00:00:00/a0 Emask 0x2 (HSM violation)
> ata2.00: status: { DRDY }
> ata2: soft resetting link
> ata2.00: configured for UDMA/33
> ata2: EH complete

That's HSM violation on ALLOW_MEDIUM_REMOVAL on the second ATA port.

> I get this block of messages about every 20 seconds for as long as I'm
> booted into a .28 kernel.
> It seems that the sata link is being soft reseted about every _20_ secs.
> My drive is a sata drive that should be using UDMA/133 (right?),
> but the "error" message says configuring for UDMA/33.
> Does this mean that my drive is running at a slower speed?
> Should I be worried about the .28 kernel corrupting my hardware? Is this
> a known issue?
> How can I stop it from filling my logs!
>
> Some information about my computer:
>
> 00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA
> IDE Controller (rev 01)
>
> $ hdparm -I /dev/sda
> /dev/sda:
> ATA device, with non-removable media
> Model Number: ST980811AS

and I strongly doubt it's the hard drive. Can you please post full
kernel log including the boot messages?

Thanks.

--
tejun


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