Re: 2.6.24.X: SATA/AHCI related boot delay. - not with 2.6.24.3

[Jeff Garzik]

Tejun Heo wrote:
> Volker Armin Hemmann wrote:
> > Hi,
> >
> > > Aiee.... Can you please try 2.6.25-rc8 with both configurations?  And
> > > w/o systemrescuecd?  Just seeing whether things mount properly or not is
> > > good enough.  There isn't much risk of losing data.
> >
> > 2.6.25-rc8 is a 'no change'. AHCI+pci=nomsi boots, AHCI without hangs.
> > with AHCI I also get this:
> >
> > [    0.363828] ------------[ cut here ]------------
> > [    0.363828] WARNING: at drivers/ata/ahci.c:645 
> > ahci_init_one+0x190/0xa3a()
> > [    0.363828] Modules linked in:
> > [    0.363828] Pid: 1, comm: swapper Not tainted 2.6.25-rc8 #2
>
> Heh.. that's AHCI_EN not getting set.  Peer, any ideas?  The driver set 
> AHCI_EN in the HOST_CTL register but on reading back it's still clear.

Possibly the hardware is not idle?  I wonder if the BIOS is doing 
anything with the IDE interface.  _Probably_ not, but that is certainly 
a situation where switching to AHCI can be a problem for certain AHCI chips.

	Jeff



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