On 21/10/2007, Dmitry Adamushko <[EMAIL PROTECTED]> wrote: > On 20/10/2007, Jeff Garzik <[EMAIL PROTECTED]> wrote: > > Chuck Ebbert wrote: > > > On 10/19/2007 05:39 PM, Jeff Garzik wrote: > > >> On my main devel box, vanilla 2.6.23 on x86-64/Fedora-7, I'm seeing a > > >> certain behavior at least once a day. I'll start a kernel build (make > > >> -sj5 on this box), and it will "hang" in the following way: > > >> > > > > > > Can you try to strace the hanging task? > > > > Well, to the system it's running, so that doesn't do much of anything... > > > > > > > > 8482 pts/0 S+ 0:00 \_ /bin/sh > > > /garz/repo/misc-2.6/scripts/hdrcheck.sh /garz/repo/misc-2.6/usr/include > > > /garz/repo/misc-2.6/usr/include/linux/kernelcapi.h > > > /garz/repo/misc-2.6/usr/include/linux/.check.kernelcapi.h > > > 8484 pts/0 R+ 3:10 \_ grep ^[ \t]*#[ > > > \t]*include[ \t]*< /garz/repo/misc-2.6/usr/include/linux/kernelcapi.h > > > 8486 pts/0 S+ 0:00 \_ cut -f2 -d< > > > 8487 pts/0 S+ 0:00 \_ cut -f1 -d> > > > 8488 pts/0 S+ 0:00 \_ egrep > > > ^linux|^asm > > > [EMAIL PROTECTED] misc-2.6]$ strace -p8484 > > > Process 8484 attached - interrupt to quit > > [sits there, chewing up CPU grepping a 47-line header file] > > I think, the following information would be helpful : > > (1) # cat /proc/PID/stat ; sleep 5; cat /proc/PID/stat > > as we could know : > > - whether utime or/and stime keeps increasing ; > > - one of the fields is actually 'eip' ... so we could, hopefully, more > or less precisely localize the area of the code where it's looping.
sure, this 'eip' will be useless in this case. [ ... ] -- Best regards, Dmitry Adamushko - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
