SETFEATURES SET TRANSFER MODE taskqueue timeout - completing request directly

[Daniel Johansson]

Hello, I recently bought a Promise SATA300 TX4 SATA controller and two 
Seagate 320 GB drives. I haven't used the disks very much until today 
when I moved a bunch of backups to one of the disks and noticed these 
messages in my dmesg.

ad10: WARNING - SETFEATURES SET TRANSFER MODE taskqueue timeout - 
completing request directly
ad10: WARNING - SETFEATURES SET TRANSFER MODE taskqueue timeout - 
completing request directly
ad10: WARNING - SETFEATURES ENABLE RCACHE taskqueue timeout - completing 
request directly
ad10: WARNING - SETFEATURES ENABLE WCACHE taskqueue timeout - completing 
request directly
ad10: WARNING - SET_MULTI taskqueue timeout - completing request directly
ad10: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=97160544

The controller is recognized as
atapci0: <Promise PDC40718 SATA300 controller> port 
0xc400-0xc47f,0xc000-0xc0ff mem 
0xfab00000-0xfab00fff,0xfaa00000-0xfaa1ffff irq 17 at device 12.0 on pci0
 
Is this something I should worry about?
Anything wrong with my disks or is it the SATA controller?
Bug in freebsd driver maybe?
Is it safe to continue to use the drives, everything seems to be working 
fine.

I'm running FreeBSD 6.1 RELEASE amd64.

-- 
Daniel Johansson - <donnex at donnex.net>