Holger Parplies wrote: > Hi, > > Les Mikesell wrote on 2009-06-21 18:53:52 -0500 [Re: [BackupPC-users] > backuppc_dump hangs server]: > > > error403 wrote: > > > > > Well, I tried to renice the process while a backup was in process, but no > > > go. > > > > > > It hung again, this time after about 25 minutes of running backuppc_dump. > > > > > > Any other ideas? Thanks > > > > > > > It is almost certainly hardware since it only happens on that machine. > > Rsync > > can consume large amounts of RAM - but that should go to swap and just slow > > down. > > > > according to the original post it doesn't seem to be an issue of the amount of > memory (I'm not saying "memory issue" because *faulty* memory could be a > cause). My next suspect would be the power supply. BackupPC puts a > simultaneous load on CPU and disk subsystem, which could cause the PSU to > reach its limits and the CPU to hang as the voltage goes out of spec. I > wouldn't rule out CPU overheating completely yet. A CPU is made up of a number > of functional units, which can operate in parallel if programmed correctly. A > (compiled) "while (1) ;" won't do that. Either will BackupPC, but it might be > causing different parts of the CPU to run hot than your test program. The > point is, you should really measure the case that is giving you problems > before ruling out the cause (if your test program had crashed the machine, > that would have been "good enough" evidence, but it failing to do so is not). > You could either try installing the "lm-sensors" package(*) and see if that > gives you meaningful readings, or at least check the temperature values in > the BIOS immediately on reboot after a crash (you won't see the actual value > during the crash, but it should be close enough to tell you whether your CPU > temperature is worryingly high or boringly low). Both sources should also > give you PSU voltage readings. > > There was a post on the list a while back on how to test your PSU. If you've > got a spare and suitable PSU (e.g. in a second computer) the easiest solution > would be to swap it and see if that changes anything. > > Good luck. > > Regards, > Holger > > (*) You need to run "sensors-detect" once, modprobe the detected modules (and > add them to /etc/modules if you want them to be automatically loaded in > the future), and then run "sensors" to see the values. > > ------------------------------------------------------------------------------ > Are you an open source citizen? Join us for the Open Source Bridge conference! > Portland, OR, June 17-19. Two days of sessions, one day of unconference: $250. > Need another reason to go? 24-hour hacker lounge. Register today! > http://ad.doubleclick.net/clk;215844324;13503038;v?http://opensourcebridge.org > _______________________________________________ > BackupPC-users mailing list > BackupPC-users < at > lists.sourceforge.net > List: https://lists.sourceforge.net/lists/listinfo/backuppc-users > Wiki: http://backuppc.wiki.sourceforge.net > Project: http://backuppc.sourceforge.net/
Hi again, Before I start dismantling my power supply, what is the highest log level for backuppc and rsync? I will try to see what's the last thing that made it crash if I can replicate it over many crashes. Thanks, Phil +---------------------------------------------------------------------- |This was sent by [email protected] via Backup Central. |Forward SPAM to [email protected]. +---------------------------------------------------------------------- ------------------------------------------------------------------------------ Are you an open source citizen? Join us for the Open Source Bridge conference! Portland, OR, June 17-19. Two days of sessions, one day of unconference: $250. Need another reason to go? 24-hour hacker lounge. Register today! http://ad.doubleclick.net/clk;215844324;13503038;v?http://opensourcebridge.org _______________________________________________ BackupPC-users mailing list [email protected] List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
