Re: todays git: WARNING: at drivers/ata/libata-sff.c:1017 ata_sff_hsm_move+0x45e/0x750()

On Sat, 10 Jan 2009 08:14:01 -0500
Jeff Garzik <jeff@xxxxxxxxxx> wrote:

Christian Borntraeger wrote:
Am Samstag 10 Januar 2009 schrieb Alan Cox:
That's the typical REQUEST SENSE command with 18-byte data length.
Which means something has become horribly broken in the core libata stack.
An 18 byte inquiry would have 18 bytes as the *last* sg element. That
would therefore not trigger the WARN_ON. Someone has passed an sg list
that isn't properly terminated perhaps ?

I wonder if the pad code broke this.

I just checked 2.6.28 + PIO32 patch. Its also broken. Whatever caused this
problem did it a while ago.

Just to be clear, you mean:

2.6.28 is OK
2.6.28 + PIO32 is broken

As far as I can tell

2.6.28 is broken but it doesn't show due to other factors
2.6.28 using 32bit PIO shows up the fact someone seems to be passing
broken sg lists
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