FAILURE - non aligned DMA transfer attempted

necanthrope

necanthrope

Hey, everyone. I'm having some trouble ripping dvds using vobcopy, and also encoding from dvds using mencode and ffmpeg. I think I've boiled down the problem to the following issue:

Whenever I try to do either of the two above mentioned activities, the process hangs, and I get the following to messages over and over in dmesg:

Code: 
ata3: FAILURE - non aligned DMA transfer attempted
acd0: setting up DMA failed

This started right after I upgraded from 6.3 to to 7.1. (I had no problems before the upgrade.) The drive in question is a SATA dvd drive, I believe it's an HP unit.

If anyone is game to help me, please let me know if there is any additional information you need to help diagnose the issue.

Thanks!

Jerry Tidwell
 
aragon said:
Try add this to loader.conf:

Code: 
hw.ata.atapi_dma=0

And reboot.
Click to expand...

I just tried that, but I'm getting the same messages and behavior.

Here's my /boot/loader.conf.
Code: 
 > more /boot/loader.conf
if_ath_load="YES"
rt2500_sys_load="YES"
wlan_wep_load="YES"
wlan_ccmp_load="YES"
wlan_tkip_load="YES"
snd_driver_load="YES"
apm_load="YES"
aio_load="YES"
kqemu_load="YES"
vesa_load="YES"
dlkfet5b_sys_load="YES"
kern.maxdsiz="734003200"
atapicam_load="YES"
hw.ata.atapi_dma=0
 
I would upgrade to at least 7.2

If it worked before and now it dont, submit a bug: http://freebsd.org/send-pr.html

I also have had problems with chipsets compatibility on FreeBSD, problems with burning CDs/DVDs but that was with Intel Q35 in the past (2 years ago?).
 
mav@ said:
It was fixed some time ago. You should try 7-STABLE or above.
Click to expand...

Hm, I updated to 7.2, and I am still getting the same error with a drive that worked under 6.3. Is there a list of compatible DVD drives for 7.2 that anyone knows of?
 
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