Re: Linux 2.6.21-rc6 - regressions update

[Soeren Sonnenburg <kernel@nn7.de>]

On Fri, 2007-04-06 at 16:04 -0700, Linus Torvalds wrote:

[HPET issues resolved]
> > 3) Subject    : SATA breakage on resume
> > References : http://lkml.org/lkml/2007/3/7/233
> > Submitter  : Thomas Gleixner <tglx@linutronix.de>
> >              Soeren Sonnenburg <kernel@nn7.de>
> > Status     : unknown
> > 
> > I am still seeing these messages after a suspend/resume cycle (though
> > all devices work even after multiple suspend/resume cycles)
> > 
> > ATA: abnormal status 0x80 on port 0x000140df
> 
> This seems to be normal, and related to some unknown timing issue. If the 
> thing works for you apart from the message, I'd just ignore it..

Argh! Now after intensive use over the last 2 days, I realized that the
internal harddisk works OK, but the dvd-drive did not after the 7th
suspend/resume cycle - the device was suddenly gone (I could not even
eject the disc I just inserted), more verbose dmesg follows:

ata1: port is slow to respond, please be patient (Status 0x80)
ata1: port failed to respond (30 secs, Status 0x80)
ATA: abnormal status 0x80 on port 0x000101f7
ATA: abnormal status 0x80 on port 0x000101f7
ATA: abnormal status 0x80 on port 0x000101f7
ATA: abnormal status 0x80 on port 0x000101f7
ata1.00: qc timeout (cmd 0xa1)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1.00: revalidation failed (errno=-5)
ata1: failed to recover some devices, retrying in 5 secs
ata1: port is slow to respond, please be patient (Status 0x80)
ata1: port failed to respond (30 secs, Status 0x80)
ATA: abnormal status 0x80 on port 0x000101f7
ATA: abnormal status 0x80 on port 0x000101f7
ATA: abnormal status 0x80 on port 0x000101f7
ATA: abnormal status 0x80 on port 0x000101f7
ata1.00: qc timeout (cmd 0xa1)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1.00: revalidation failed (errno=-5)
ata1.00: limiting speed to UDMA/33:PIO3
ata1: failed to recover some devices, retrying in 5 secs
ata1: port is slow to respond, please be patient (Status 0x80)
ata1: port failed to respond (30 secs, Status 0x80)
ATA: abnormal status 0x80 on port 0x000101f7
sage repeated 4 times
ata1.00: qc timeout (cmd 0xa1)
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
ata1.00: revalidation failed (errno=-5)
ata1.00: disabled

Soeren
-- 
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will be utterly fantastic. -- Arthur C. Clarke, 1962