FreeBSD 10.0-ALPHA3 #0 r255878M annoying in console

[Stefan Esser]

Am 27.09.2013 06:43, schrieb Alexander Panyushkin:
> Hi all.
> 
> FreeBSD 10.0-ALPHA3 #0 r255878M: Thu Sep 26 18:14:08 EEST 2013 scorpion
> kernel: root at scorpion.kiev.ua:/usr/obj/usr/src/sys/Kernel amd64
> clang version 3.3 (tags/RELEASE_33/final 183502) 20130610
> 
> After rebuild world my box annoying  in console
> [...]
> Sep 26 20:42:39 scorpion kernel: ata0: FAILURE - zero length DMA
> transfer attempted
> Sep 26 20:42:39 scorpion kernel: ata0: setting up DMA failed
> Sep 26 20:42:39 scorpion kernel: ata0: FAILURE - zero length DMA
> transfer attempted
> Sep 26 20:42:39 scorpion kernel: ata0: setting up DMA failed
> Sep 26 20:42:39 scorpion kernel: ata0: FAILURE - zero length DMA
> transfer attempted

I've seen this too, but on ata2 instead of ata0. All 4 other
drives connected to the N67 chipset just worked without any
console messages.

The system was operational (slowed down by printing the messages),
but I'm having an All-ZFS RaidZ Configuration and that might hide
errors.

Reverting to a kernel from 2 days ago fixed this problem.

Regards, STefan