lwn-fedora-test at lwn.net
Fri Mar 4 20:07:07 UTC 2005
Kjartan Maraas <kmaraas at broadpark.no> wrote:
> >Sometime over the last month, a rawhide update bestowed upon me a
> >version of gnome-cd which skips. Bits of the audio drop out every 30
> >seconds or so.
> I filed this today because I was seeing skips with mixed data/audio CDs.
> Is the CD you played back by any chance in this category?
I have such CDs, but *every* CD I play skips, regardless of whether it
has data tracks or not. So I don't think that's it.
I ran it under strace for a bit today. As others have guessed, gnome-cd
is not actually dealing with the music stream itself; that goes direct
to the sound card from the play. I see the gnome-cd process doing two
- Talking with the X server. Not surprising.
- ioctl(20, CDROM_DRIVE_STATUS, 0x7fffffff) = 4
So now I'm beginning to wonder: might the real problem be a regression
in the kernel such that this ioctl() call perturbs a running CD drive?
*This* is the sort of problem I can try to track down (whereas what goes
on inside GNOME is a deep, dark mystery), so I think I'll try to carve
out a bit of time to dig further.
More information about the test