RELENG_5: ata interrupt problems

[M. Warner Losh]

In message: <16679.63728.806424.628485 at ran.psg.com>
            Randy Bush <randy at psg.com> writes:
: > The actual errors from a 5.3-BETA from today (hand transcribed):
: 
: thanks for the transcription; i have tendonitis
: 
: > ad0: 73863MB <HTS548080M9AT00/MG40A50A> [150071/16/63] at ata0-master UDMA100
: > ATAPI_RESET time = 150us
: > ata1-slave: FAILURE - ATAPI_IDENTIFY timed out
: > ATAPI_RESET time = 150us
: > acd0: CDRW <UJDA740 DVD/CDRW/1.04> at ata1-master UDMA33
: > Mounting root from ufs:/dev/ad0s2a
: > [...]
: > ad0: WARNING - READ_DME interupt was seen but timeout fired LBA=41574224
: > [...]
: > ad0: WARNING - READ_DME interupt was seen but timeout fired LBA=41562160
: > ad0: WARNING - READ_DME interupt was seen but timeout fired LBA=41562160
: > ad0: WARNING - READ_DME interupt was seen but taskqueue stalled LBA=41562160
: > Slab at 0xc1c3ff70, freei 3 = 0
: > 
: > The "[...]" is just normal startup.  It goes as far as the script that
: > attaches my GDBE partition before it panics.
: > 
: > And then it panics like below:
: 
: yep.  same on a thinkpad t40p

I had the same problems on Friday, but today's sources seem to have
solved the problem.

Warner