I have a machine that panics reliably within ten minutes of
operation with ATAng. It subsequently locks up, so I can't obtain
a dump, and I get a small amount of random filesystem corruption
upon rebooting. Everything was fine with ATAog.
I don't have a serial cable handy at the moment, but the DDB
traceback looks like this:
panic: ata_dmasetup: transfer active on this device!
cpuid = 0
[...]
panic [...]
ata_dmastart(d3075000,4000,0,101) [...]
ata_pci_dmastart(d3075000,4000,0,20) [...]
ata_transaction [...]
ata_start [...]
ata_completed [...]
taskq_run [...]
[...]
I can attach a serial cable and get some more information if
necessary. The dual-processor machine in question has one 200GB
UATA 100 drive attached to ad0 and two 36GB SATA drives on ad4 and
ad6, mirrored through ccd(4).
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