On Mon, Feb 09, 2009 at 12:40:46AM -0800, Andrew Morton wrote: > > Thread 1: > > for ((; ;)) > > { > > mount -t cgroup -o cpuset xxx /mnt > /dev/null 2>&1 > > mkdir /mnt/0 > /dev/null 2>&1 > > rmdir /mnt/0 > /dev/null 2>&1 > > umount /mnt > /dev/null 2>&1 > > } > > > > Thread 2: > > { > > mount -t cpuset xxx /mnt > /dev/null 2>&1 > > umount /mnt > /dev/null 2>&1 > > } How cute... Same mountpoint in both, so these mount(2) will sometimes fail (cgroup picks the same sb on the same options, AFAICS) and fail silently due to these redirects... That's a lovely way to stress-test a large part of ro-bind stuff *and* umount()-related code. Could you do C equivalent of the above (just the same syscalls in loop, nothing fancier) and do time-stamped strace? _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers