Re: [Ltsp-discuss] ltsp in debian
Hi Antoine, thanks for that input, it is just what I thought would be the reason. Am 16.05.2012 18:43, schrieb Antoine RODRIGUEZ: > The trouble that is specified all is more a kernel trouble. Not an LTSP > or Xorg trouble. > > The kernels in debians might not be compiled for the platforms that you > are mentioning : Via Epia (C3 processor) and Pentium III witch both does > not support various default settings of the kernel. Well, this is Suse here, but the problem seems to be the same. At least good to know why... :-) > > You have to create a custom kernel that fit exactly your hardwares. If I only knew how... I've discussed this topic with several folks in forums, but they didn't (want to?) understand the difference between compiling a kernel and making a configuration for LTSP. Sure, it's simple to switch certain things on and off, but making a new, compact kernel is something different. > > The actual kernel of debian is set to work with everything witch consume > a lot of memory witch explain the bugs for systems with less than > 256MB Yep! I could see that it searches for a second network port for example, and lots of things which are simply superfluous. > > The Via Epia C3 trouble is just that the system is build with PAE witch > is incompatible with this system (and also some instructions are missing) Ok... so a plain 32bit kernel would do, right? After all, it's running smoothly with LTSP 4.2 kernels... > > So the answer to the troubles is to compile a new kernel with the > adecuate configurations. I'll try to find some specific howtos if needed. Oh, that would be great! Thanks in advance for your help! Maybe you can point me to some instruction that goes through the necessary steps. Rolf -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
Re: [Ltsp-discuss] ltsp in debian
On Wed, May 16, 2012 at 11:27:34PM +0200, Gian Carlo Stagni wrote: > Il 16/05/2012 04:27, Quiliro Ordóñez ha scritto: > > > So LTSP does not work on Pentium III as a client? > I have a laboratory with a server running Squeeze and 20 _very_ > thin-clients... > - CPU: 400MHz Pentium II (Deschutes) > - RAM 64MB > > As they are able to boot from lan but still have an unused 4GB hdisk, I > created a local swap partition and set in lts.conf... > === > X_COLOR_DEPTH=16 > USE_LOCAL_SWAP=Y > NBD_SWAP=N > === > > Ok, pupils are not heavy users (maybe!) but at last Iceweasel rarely > crashes. > I had to to the same thing on a P3 laptop thin client recently. Certain websites (with lots of pictures) were crashing Iceweasel. Setting X_RAMPERC = 80 did not fix the problem, but a local swap partition did. And I verified with 'top' that the thin client does swap to disk when loading those heavy websites. -Rob -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
Re: [Ltsp-discuss] ltsp in debian
Il 16/05/2012 04:27, Quiliro Ordóñez ha scritto: > So LTSP does not work on Pentium III as a client? I have a laboratory with a server running Squeeze and 20 _very_ thin-clients... - CPU: 400MHz Pentium II (Deschutes) - RAM 64MB As they are able to boot from lan but still have an unused 4GB hdisk, I created a local swap partition and set in lts.conf... === X_COLOR_DEPTH=16 USE_LOCAL_SWAP=Y NBD_SWAP=N === Ok, pupils are not heavy users (maybe!) but at last Iceweasel rarely crashes. gc :-) -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
Re: [Ltsp-discuss] ltsp in debian
Am 16.05.2012 06:18, schrieb Alkis Georgopoulos: > Στις 16/05/2012 05:27 πμ, ο/η Quiliro Ordóñez έγραψε: >> So LTSP does not work on Pentium III as a client? This would make LTSP >> non-viable for me. I thought only X worked on the clients. Is X that heavy? > > LTSP works fine on Pentium II with 128 MB RAM. > But some apps like firefox or openoffice make heavy use of local X RAM > in order to speed things up and prevent roundtrips to the X server. > E.g. I've seen firefox running on thin client (i.e. on the server) using > 300 MB RAM of *local* X RAM to cache images. > There's an option to disable that, but of course it'll slow firefox down > a bit, read more in this bug report: > https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/137764 > > In order for your clients not to crash you can enable an e.g. 512 MB NBD > swap file, read your distro docs about enabling NBD swap in LTSP. > That brings me to a question: Currently I'm setting up a new LTSP server based on Suse12.1 and have experimented a lot with LTSP 5. Our PIII-based Dell Optiplex GX110 terminals all have 128 MB RAM, but with the kernel that is tried to be loaded, they crash in the middle of booting. So I put 256 MB into one of them, and it runs flawlessly. However, the terminal on my own desk is a VIA Epia with 256 MB and it crashes when booting, too... As I couldn't find any help, I started using LTSP 4.2 (as I have all the configuration files on the still-running server anyway). Last weekend, it turned out that I cannot use the USB ports on the terminals yet. I tried to activate everything to "mimik" the old server (a perl module for X11 is needed and NBD), but to no avail. Before I had to leave I detected there is an /etc/nbd-server/config.example file which seems not to be activated. So my question is, could it all be due to NBD not being active? How would you investigate? Thanks for your ideas! Rolf -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
Re: [Ltsp-discuss] ltsp in debian
On Wednesday 16 May 2012, Quiliro Ordóñez wrote: > So LTSP does not work on Pentium III as a client? This would make LTSP > non-viable for me. I thought only X worked on the clients. Is X that heavy? I am not saying that, I am just saying that it was cheaper for me to spend £100 per client x 5 fixing the problem, than to spend endless hours trying to track such an obscure problem. Just to reiterate - this was a sudden problem - one day they worked fine, the next we had this sudden slow down every few hours. Something is triggering Xorg to melt down on the clients. I spent a fair bit of time trying to pin it down to one application, could it be IE in rdesktop, Iceweasel, it didn't seem to matter. It was always after using a browser, but then we're using browsers all the time, so that could have just been coincidence. But it only affected our PIII clients, which were all Compaq ENSFF Deskpros (in case that is relevant). -- Chris Roberts -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
Re: [Ltsp-discuss] ltsp in debian
Στις 16/05/2012 05:27 πμ, ο/η Quiliro Ordóñez έγραψε: > So LTSP does not work on Pentium III as a client? This would make LTSP > non-viable for me. I thought only X worked on the clients. Is X that heavy? LTSP works fine on Pentium II with 128 MB RAM. But some apps like firefox or openoffice make heavy use of local X RAM in order to speed things up and prevent roundtrips to the X server. E.g. I've seen firefox running on thin client (i.e. on the server) using 300 MB RAM of *local* X RAM to cache images. There's an option to disable that, but of course it'll slow firefox down a bit, read more in this bug report: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/137764 In order for your clients not to crash you can enable an e.g. 512 MB NBD swap file, read your distro docs about enabling NBD swap in LTSP. -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
Re: [Ltsp-discuss] ltsp in debian
El 10/05/12 02:51, Chris Roberts escribió: > On Thu, May 10, 2012 at 11:59:18AM +0530, Dinesh Kumar wrote: >> �We have ltsp configured in debian and it servers around 15 thin >> clients.The issue is the clients complaining of frequent hanging issue.At >> the time of hanging problem,i have checked the load load average in >> server >> its very normal 0.23 some thing like that. >> >> Memory consuption in server also very normal.So i dont know how to narrow >> down this issue exactly.Would it be a VGA problem.Your suggestions >> please. >> > Whenever you have this problem, ssh onto the client and look at "top" - I > suspect you will find Xorg using all available resources. This started > happening here, and the solution for us was to simply replace the > clients, as they were all the older ones, generally Pentium IIIs. > So LTSP does not work on Pentium III as a client? This would make LTSP non-viable for me. I thought only X worked on the clients. Is X that heavy? -- Saludos libres, Quiliro Ordóñez (593)2-253 5534 (593)2-340 1517 (593)9-675 9641 -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
Re: [Ltsp-discuss] ltsp in debian
On Thu, May 10, 2012 at 11:59:18AM +0530, Dinesh Kumar wrote: >�We have ltsp configured in debian and it servers around 15 thin >clients.The issue is the clients complaining of frequent hanging issue.At >the time of hanging problem,i have checked the load load average in server >its very normal 0.23 some thing like that. > >Memory consuption in server also very normal.So i dont know how to narrow >down this issue exactly.Would it be a VGA problem.Your suggestions please. > Whenever you have this problem, ssh onto the client and look at "top" - I suspect you will find Xorg using all available resources. This started happening here, and the solution for us was to simply replace the clients, as they were all the older ones, generally Pentium IIIs. This was without any local apps running. -- Chris Roberts http://chrisjrob.com/ -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/_ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
Re: [Ltsp-discuss] ltsp in debian
Hello Dinesh How meaty are your clients? The hanging could be because an application takes up all the client ram. Fiddling with the X_RAM_PERC option might help that Also, perhaps the network could be the bottleneck. Have you tried connecting a client directly to the server and see if that helps? On 05/10/2012 08:29 AM, Dinesh Kumar wrote: > Hi all, > > We have ltsp configured in debian and it servers around 15 thin > clients.The issue is the clients complaining of frequent hanging > issue.At the time of hanging problem,i have checked the load load > average in server its very normal 0.23 some thing like that. > > Memory consuption in server also very normal.So i dont know how to > narrow down this issue exactly.Would it be a VGA problem.Your > suggestions please. > > Thanks®ards, > Dinesh. -- Venlig Hilsen / Best Regards Christoffer Krakou Fleten.net APS -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
