Red Hat Bugzilla – Bug 439592
excessive snd_printdd debug output from cs46xx card in 2.6.24 kernels
Last modified: 2008-04-29 16:54:34 EDT
Description of problem:
Since updating to the 2.6.24 kernels in f8, the cs46xx sound card driver has
become much more verbose. It seems to be printing messages every time the sound
card does anything remotely interesting. This makes it harder to look for
genuinely interesting events. Something seems to have changed so that the
snd_printdd debug messages in the cs46xx code are now being output. I've
re-checked and confirmed that the sound driver is quiet in kernel-220.127.116.11-137.fc8.
I don't know if something changed centrally in the sound system, or if it's that
more verbose debugging was turned on in the configuration. I did notice this
http://lkml.org/lkml/2008/2/17/74 - which could have similar causes.
Just as an indication of the scale of the debug noise:
# wc -l /var/log/messages-20080323
# grep cs46xx /var/log/messages-20080323 | wc -l
Version-Release number of selected component (if applicable):
kernel-18.104.22.168-34.fc8 } all of
Created attachment 299573 [details]
Last 100 lines from dmesg
Disabled sound debug messages in 22.214.171.124-74
kernel-126.96.36.199-85.fc8 has been submitted as an update for Fedora 8
kernel-188.8.131.52-85.fc8 has been pushed to the Fedora 8 testing repository. If problems still persist, please make note of it in this bug report.
If you want to test the update, you can install it with
su -c 'yum --enablerepo=updates-testing update kernel'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F8/FEDORA-2008-3260
kernel-184.108.40.206-85.fc8 has been pushed to the Fedora 8 stable repository. If problems still persist, please make note of it in this bug report.