On Mon, 2012-05-21 at 19:50 +0200, David Sjölin wrote: > On Mon, May 21, 2012 at 7:33 PM, AL13N <al...@rmail.be> wrote: > > perhaps check the logs (/var/log/messages) for information regarding those > > downtimes. > > > > see if the ping also delays > > > > perhaps try to monitor something via ssh or in tty, to see if it's only > > the graphic card. > > > > also, check ntpd settings, do they make big jumps? > > > > etc... > > > > > > in short: logging is always the key. > > > >> Hello All - > >> > >> I am experiencing a strange problem with a specific machine running > >> Cauldron. I am beginning to believe it is NOT a Mageia problem because > >> when I boot into Ubuntu 12.04 the problem exists as well. I think it > >> may be hardware related but I can not find what is causing this issue. > >> > >> The machine is an Acer Aspire x3900 with a quad core AMD Phenom(tm) II > >> X4 925 Processor - 6GB memory. GeForce GT215 (GeForce 320) card. I am > >> running the x86_64 version of Cauldron. > >> > >> The problem occurs under both KDE and Gnome > >> > >> Basically, the system seems to freeze up (mouse moves) but nothing else > >> - gkrellem freezes and no errors occur - it just seems to hang - but > >> magically wake up again after some time (many seconds at a time) > >> > >> I have checked various logs and can not find any problems - so I am > >> stumped how to find the source of the problem. I leave the machine > >> running 24x7, but don't think it is a thermal issue. > >> > >> When the system runs under Windows 7 (64bit) it appears to run fine. > >> > >> Any hints what I could check? > >> > > Hello! > > If you want to log cpuusage to see if some process has extra high cpu > usage during this freeze you could do something like: > > while true; do date >> testfilen.txt ; top -b -n1 >> testfilen.txt ; > sleep 1; done > > Then you will get top-output every second (sleep 1) or whatever time > you specify for sleep. I think there is a way to do this with top > only, without the delay but not sure which flags to use then (possibly > top -d 1 -b) > > The file testfilen.txt will of course grow quite large after a while, > so you can't keep this running 24/7 maybe, but maybe you could clear > out the file regularly until you get the error situation again and > then based on the date output you should be able to find cpu usage > around the time of the problem. > > Regards, > > David
Thanks for the quick responses. I checked the cpu usage, but there doesn't appear to be a spike - and the load average in htop is real low: load average: 0.46, 0.67, 0.56 so if the X server or something else was maxing out the cpu, I'd see that. Also, if I use a console in KDE (like yakuake) - the stalls happen in there as well. At first I though this was Firefox related (like flash problem or something) because it was most noticeable when I surfed - firefox freezes off and on and it is really frustrating. This machine was working fine for at least a year - and I was suspecting something with the latest kernels and the AMD processor - but have no evidence. The search continues . . . Thanks again, R.Fox
