Subject: Re: kern/24958: CD/DVD recording impossible with 1.6ZL, works in 1.6ZG
To: None <>
From: Manuel Bouyer <>
List: netbsd-bugs
Date: 03/29/2004 23:38:36
On Mon, Mar 29, 2004 at 10:41:22PM +1000, wrote:
> >Description:
> after upgrading my kernel to 1.6ZL, CD/DVD recording has become
> impossible. running "cdrecord -v blah.iso" reports that the FIFO gets
> emptied very soon after starting, and towards the middle of the burn
> cdrecord aborts. the "buffer" figure always remains close to 100%.
> turning on "burn-free" does not help.
> booting a 1.6ZG kernel, the same command line for CDs and DVDs works
> fine (FIFO and buffer staying close to 100%).
> no idea where to start looking at this one .. maybe someone else has a
> clue? ;)

maybe you could try using 'systat vm' to watch disk and interrupt activity
while burning ? 

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference