Hi Andrew, Thanks for your reply. The deadlocks seem to happen at random times. Yesterday the servers did not deadlock at all - though today 1 server deadlocked 3 times. There seems to be no pattern.
>From what I've seen the space used in the tmpfs disk never exceeds 300Mb - though perhaps at some time something is going wrong and the tmpfs is filling up ? I will set a size limit tomorrow and will provide feedback. Thanks so much for your input so far ! Kind regards David Wilson D c D a t a CNS, CLS, Linux+, LPIC1, LPIC2 Email/MSN: [EMAIL PROTECTED] Phone: 0860-1-LINUX Fax: 0866878971 Mobile: 0824147413 Skype: dave-wilson -----Original Message----- From: Andrew Colvin [mailto:[EMAIL PROTECTED] Sent: 11 April 2007 08:52 AM To: suse-linux-e@suse.com Subject: Re: [opensuse] OpenSuse 10.2 x86_64 RAM disk & server lock ups On Tuesday 03 April 2007 09:05:24 David Wilson wrote: > Hi guys, > > How are you keeping ? > > I have three Opensuse 10.2 x86_64 installations running on separate > HP-ML370G4/5 servers (Dual Xeon). > > Both systems have 4gigs of RAM each. > > On these systems I'm running Asterisk which provides telephony for a 100 > seat call center. > > The conversations that are recorded by Asterisk are recorded to > /var/spool/asterisk/monitor which is a tmpfs/shm file system and configured > as follows in my /etc/fstab: > > shm /var/spool/asterisk/monitor tmpfs defaults 0 0 > > > On a daily basis each of these servers will 'dead lock' i.e. completely > freeze. When this happens the servers do not respond to the keyboard or > even 'ping'. > > I've also experienced the same problem on a totally different non HP custom > built server running the same OS (OpenSuse 10.2). > > If I disable the RAM disk and record the conversation straight to hard disk > then everything is fine - the servers do not lock up. Unfortunately I have > to use the RAM disk due to performance issues with writing the recordings > straight to disk. > > I have a script that runs every minute that moves the completed recordings > from RAM disk to hard disk, so it's not getting too full. > > Any ideas where my problem could lie or how I can enable some type of RAM > disk debugging to find out where things are going wrong ? > > You say that they deadlock on a daily basis. Have you correlated it to the number of calls taken by that server each day or is it always at the same time? I have experienced freezes when a rogue process consumes my memory so that I end up with no physical or swap free. You are using an unrestricted tmpfs, could the memory consumption be slowly growing. Can I suggest you set a maximum size of your tmpfs for one machine and see if that helps. Andrew -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- This email and all contents are subject to the following disclaimer: http://www.dcdata.co.za/emaildisclaimer.html -- This email and all contents are subject to the following disclaimer: http://www.dcdata.co.za/emaildisclaimer.html -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
