Alan Cox wrote:
Ar Gwe, 2006-10-20 am 14:30 -0400, ysgrifennodd Kevin Radloff:
On 10/13/06, Linus Torvalds <[email protected]> wrote:
Ok, it's a week since -rc1, so -rc2 is out there.
A bit behind, but booting still takes ages on my laptop as
libata/ata_piix tries to probe a device that isn't there (I reported
this previously against -rc1, but got no response):
Probing is somewhat broken in 2.6.18 - something in the core code
changed as its upset quite a few drivers at once. One case causes
repeated errors and finally detection of an ATAPI device, the other
causes repeated errors and then failure when no device is present but
takes a few minutes and keeps IRQs locked off for long periods. Both
appear to be fallouts from the new EH code.
There are definitely warts related to the new EH stuff, but specifically
for SATA + ata_piix, it has been a long hard road of trying various
probing mechanisms. Tejun has some patches that revert all the PCS work
and rewinds back to original SATA ata_piix probing, in -mm for testing.
If testing feedback proves positive, let's go ahead and fast-track that
up the line.
With ata_piix, I would worry more about PCS register follies than core
libata. Users can try the module option force_pcs=[0|1|2] to experiment
and see if any of the three possibilities improves their boot.
Jeff
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