On Saturday 26 August 2006 23:11, Raseel Bhagat wrote: > Hi, > > On 8/27/06, mike@xxxxxxxxxx <mike@xxxxxxxxxx> wrote: > > On Sat, 26 Aug 2006 12:55:33 -0700 > > > > tom arnall <kloro2006@xxxxxxxxx> wrote: > > > My system hangs momentarily every 4 mins 2 secs. The event coincides > > > with a 'top' entry in which 'events/0' grabs 50-95% of cpu capacity. > > > How can I determine what is causing the event? > > This is a long-shot but the last time I had the same problem it turned > out that there had developed a loose connection with the heat-sink and > processor on the motherboard. > As a result, the processor used to over-heat in about every 3 minutes > or so, the watchdogs would come into picture and cause the machine to > hang or reboot.... usually reboot. > > Just give a quick check on your hardware before probing into the software > side. how did you identify the problem with the heat sink? is it likely that a hardware problem would cause the hanging phenomenon at such a precise interval? i ran 'top' in batch mode to a file for ~.5 hour and also wrote down the time whenever the hang occurred, then i compared the output of top with the 'hang moments'. there was an exact coincidence with 'top' entries in which 'events/0' was gobbling the cpu. and these events occurred exactly 4 mins 2 secs from each other. i also logged the content of /proc/interrupts at intervals of ~.2 sec's. in this case, there was no change at the 'hang moments' except that i got only 1 sample for the second in which the hang occurred. in all other cases, of course, i got 5 samples per second. thanks in advance, tom arnall north spit, ca - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs
