On Fri, Jun 13, 2008 at 12:52:08PM -0700, Yuri wrote: > I have linux skype that complains that it can't use sound device without > giving any details. > 'truss -f' flag doesn't show any system calls related to sound device > (/dev/dsp*). Maybe it's because of child processes aren't really > monitored by truss for linux processes. > But sound from another sound application gets some strange interruption > and buzz every time I try to activate sound from skype. That's how I > know that skype really does something with sound device. > > Is there a way to probe program's activity with devices in-kernel? > > Yuri >
ktrace(1)
From man page:
The ktrace utility enables kernel trace logging for the specified pro-
cesses. Kernel trace data is logged to the file ktrace.out. The kernel
operations that are traced include system calls, namei translations, sig-
nal processing, and I/O.
frase
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