Thanks. Let me try it and let you know the results.<br><br>Thank you.<br><br><br><div class="gmail_quote">On Sun, Jul 26, 2009 at 5:40 PM, Giovanni Maruzzelli <span dir="ltr"><<a href="mailto:gmaruzz@celliax.org">gmaruzz@celliax.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Performance problems and other issues (eg crashes on ALSA drivers) has<br>
been reported for Skypiax on CentOS, albeit various users got good<br>
success on same CentOS. The section down below, "Extreme" Performances<br>
on Linux solves all problems for the user that got issues on CentOS.<br>
<br>
<a href="http://wiki.freeswitch.org/wiki/Skypiax_Skype_Endpoint_and_Trunk#.22Extreme.22_Performances_on_Linux" target="_blank">http://wiki.freeswitch.org/wiki/Skypiax_Skype_Endpoint_and_Trunk#.22Extreme.22_Performances_on_Linux</a><br>
<div><div></div><div class="h5"><br>
<br>
<br>
On Sun, Jul 26, 2009 at 2:37 PM, Giovanni Maruzzelli<<a href="mailto:gmaruzz@celliax.org">gmaruzz@celliax.org</a>> wrote:<br>
> Ciao Muhammad,<br>
><br>
> I've got many problems with ALSA drivers, including various kind of crashes.<br>
><br>
> To make a looong story short, use the alsa_drivers version 1.0.20,<br>
> they have not yet crashed on me.<br>
><br>
> Also, if you want to test it, you can compile the customized snd-dummy<br>
> driver you find in the svn code, it is a try to have much more<br>
> efficiency bot in softirqs and context switches, allows for 64 Skype<br>
> instances (128 subdevices), etc. it is to be compiled with<br>
> alsa_drivers 1.0.20 too.<br>
><br>
> Is my feeling (I mean, almost sure) they got spin_locking wrong in<br>
> previous versions, and it crashes the kernel when you "really" use it<br>
> (Skype clients have a demented usage of alsa).<br>
><br>
> BTW, I'm in the process of revamp the code, fix the bugs and apply<br>
> patches. Please, have a look at the new wiki page with lots of new<br>
> content, I'll send a mail to the ML tomorrow :-)<br>
><br>
><br>
> Sincerely,<br>
><br>
> Giovanni Maruzzelli<br>
> =========================================<br>
> <a href="http://www.celliax.org" target="_blank">www.celliax.org</a><br>
> via Pierlombardo 9, 20135 Milano<br>
> Italy<br>
> gmaruzz at celliax dot org<br>
> Cell : +39-347-2665618<br>
> Fax : +39-02-87390039<br>
><br>
><br>
><br>
><br>
> On Sun, Jul 26, 2009 at 2:19 PM, Muhammad<br>
> Shahzad<<a href="mailto:shaheryarkh@googlemail.com">shaheryarkh@googlemail.com</a>> wrote:<br>
>> Hi,<br>
>><br>
>> I am having random Linux Kernel crash problems while running FreeSWITCH as<br>
>> Skype to/from SIP gateway on one of our production servers. This machine is<br>
>> running CentOS 5.2, Kernel version 2.6.18-92.1.22.el5.centos.plusPAE with FS<br>
>> svn revision number 13754.<br>
>><br>
>> At time of Kernel crash i could find following crash messages which point to<br>
>> some source code file in FS source tree.<br>
>><br>
>> --------------------- Kernel Begin ------------------------<br>
>><br>
>><br>
>> 3 Time(s): =======================<br>
>> 3 Time(s): [<c0404eff>] syscall_call+0x7/0xb<br>
>> 3 Time(s): [<c043ed22>] sys_delete_module+0x192/0x1b8<br>
>> 3 Time(s): [<c0449011>] audit_syscall_entry+0x14b/0x17d<br>
>> 3 Time(s): [<c049f4fe>] remove_proc_entry+0x139/0x18c<br>
>> 3 Time(s): [<f8d96281>] alsa_sound_exit+0xa/0x30 [snd]<br>
>> 3 Time(s): [<f8d96304>] snd_info_done+0x46/0x49 [snd]<br>
>> 3 Time(s): BUG: warning at fs/proc/generic.c:732/remove_proc_entry() (Not<br>
>> tainted)<br>
>> 1 Time(s): snd-malloc: Memory leak? pages not freed = 1<br>
>><br>
>> ---------------------- Kernel End -------------------------<br>
>><br>
>> While the problem seems to arise from ALSA kernel module but it blames FS<br>
>> file fs/proc/generic.c:732 for this. The only FS module that is using ALSA<br>
>> is mod_skypiax but as far as i remember that module is using FS internal<br>
>> routines to allocate and de-allocate sound driver services for Skype client.<br>
>><br>
>> Please suggest a solution.<br>
>><br>
>> Thank you.<br>
>><br>
>><br>
>> --<br>
>> Muhammad Shahzad<br>
>> -----------------------------------<br>
>> CISCO Rich Media Communication Specialist (CRMCS)<br>
>> CISCO Certified Network Associate (CCNA)<br>
>> Cell: +92 334 422 40 88<br>
>> MSN: <a href="mailto:shari_786pk@hotmail.com">shari_786pk@hotmail.com</a><br>
>> Email: <a href="mailto:shaheryarkh@googlemail.com">shaheryarkh@googlemail.com</a><br>
>><br>
>> _______________________________________________<br>
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>> <a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br>
>><br>
>><br>
><br>
<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>Muhammad Shahzad<br>-----------------------------------<br>CISCO Rich Media Communication Specialist (CRMCS)<br>CISCO Certified Network Associate (CCNA)<br>Cell: +92 334 422 40 88<br>
MSN: <a href="mailto:shari_786pk@hotmail.com">shari_786pk@hotmail.com</a><br>Email: <a href="mailto:shaheryarkh@googlemail.com">shaheryarkh@googlemail.com</a><br>