On Tue, Aug 28, 2007 at 12:07:20AM -0700, Roland McGrath wrote: > > * unbounded utrace_engine_cache growth > > started from 31a9ef5cfcdbae804e3e180c158bf2352728765a, > > nobody knows why > > testcase: at the end of > > http://marc.info/?l=linux-kernel&m=117128445312243&w=2 > > Is it correct that this only happens with CONFIG_PREEMPT=y?
I rechecked, and it appears that one needs 2 cpus for this, preemption doesn't matter. In UP case there is no bug regardless of PREEMPT and in SMP case there is bug, again, regardless of PREEMPT.
