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SubjectRe: 2.6.25-rc8-mm2: CONFIG_ATA_SFF: panic involving mount_block_root and down the road
On Sat, Apr 12, 2008 at 04:59:17AM +0400, Alexey Dobriyan wrote:
> On Sat, Apr 12, 2008 at 03:43:45AM +0400, Alexey Dobriyan wrote:
> > Pekka fixed SLUB for me, and now core2 box survives up and including to
> > not finding / :
> >
> > Setup is SATA disk with plain old partitions, nothing lvmancy:
> >
> > /dev/sda2 on / type ext3 (rw,noatime)
> >
> > CONFIG_ATA=y
> > CONFIG_ATA_ACPI=y
> > CONFIG_SATA_AHCI=y
> > CONFIG_ATA_PIIX=y
> > CONFIG_PATA_JMICRON=y
> >
> > sda1 is for swap.
> >
> >
> > [ 3.920000] NET: Registered protocol family 1
> > [ 3.920000] VFS: Cannot open root device "sda2" or unknown-block(0,0)
>
> The winner is partly me, partly git-libata-all.
>
> The latter introduced CONFIG_ATA_SFF option and put more or less every
> SATA and PATA driver under it. The former honestly answered N to when
> ATA_SFF popped up and failed to check existence of ATA_PIIX and
> PATA_JMICRON in failing .config .
>
> Now raise hands those who knew that your ATA controller is SFF
> compliant.

Is there any technical reason why we have to bother users with the
ATA_SFF option at all?

It sounds like a perfect canndidate for being select'ed.

cu
Adrian

--

"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed



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