Jürgen Beisert <jbe@...> writes: > > Hi Dave, > > On Sunday 20 October 2013 20:56:18 Dave wrote: > > Thought I would try 2013.09.0 with kernel 3.11 and have been trying to sort > > a problem as follows: > > > > - at random times the cursor will stop flashing and even though px aux > > shows that my application is running it is not. I can still navigate > > directories and look at files, so something is still working. > > > > Nothing appears in the log files in /var/log (daemon.log, thttpd.log, > > kern.log and user.log) > > > > Any hints on where to look next would be appreciated. > > You are the second person who reports about a stuck Linux-3.11 kernel. It seems > the timer implementation is broken since 3.11 (the timer implementation was > changed on the way to 3.11). The S3C2440 CPU has now HRT (high resolution > timer) support. > I have no idea how to trigger the fault. At least on my system it didn't hit me > yet. > > Just an idea: when it hits you the next time, please "cat" the content > of "/proc/interrupts" a few times and see if the timer interrupt still > increments or not. > > Regards, > Juergen >
Thanks for the hint, I wasn't getting anywhere hoping something would turn up in a log file! Just tried your suggestion and while I was repeatedly invoking the command the system locked and you are right the samsung_timer_irq is frozen. I don't really need 3.11 ... it was just that I had some spare time and thought I'd upgrade to the final mini2440_BSP. Cheers, Dave
