[Freeswitch-users] A possible bug in FS causing Linux Kernel crash

[Giovanni Maruzzelli]

On Sun, Jul 26, 2009 at 2:19 PM, Muhammad
Shahzad<shaheryarkh at googlemail.com> wrote:
> Hi,
>
> I am having random Linux Kernel crash problems while running FreeSWITCH as
> Skype to/from SIP gateway on one of our production servers. This machine is
> running CentOS 5.2, Kernel version 2.6.18-92.1.22.el5.centos.plusPAE with FS
> svn revision number 13754.
>
> While the problem seems to arise from ALSA kernel module but it blames FS
> file fs/proc/generic.c:732 for this. The only FS module that is using ALSA
> is mod_skypiax but as far as i remember that module is using FS internal
> routines to allocate and de-allocate sound driver services for Skype client.

Also, please note that neither mod_skypiax nor FreeSWITCH have nothing
to do with ALSA (eg: no ALSA code at all in mod_skypiax or
FreeSWITCH).

Is the Skype client instance that uses the sound driver, just like on
a desktop Skype client usage

The Skype client instances are started by a shell script, but you
could as well start them from the command line, and are completely
autonomous from FreeSWITCH (FS do not allocate or deallocate sound
driver services for them).

Summary: it's just the ALSA drivers that are to blame :-)

-giovanni