Messages in this thread | | | Date | Fri, 20 Mar 2009 19:36:42 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH 0/5] [GIT PULL] updates for tip/tracing/ftrace |
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* Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:
> On Thu, Mar 19, 2009 at 01:21:47PM -0400, Steven Rostedt wrote: > > > > I'm still not able to reproduce, but... > > > > On Thu, 19 Mar 2009, Ingo Molnar wrote: > > > > > * Ingo Molnar <mingo@elte.hu> wrote: > > > > > > > these latest ftrace changes caused a lockup on a -tip testsystem: > > > > > > Note, even with Rusty's offstack-cpumask fix applied (in latest > > > -tip), i can reproduce a lockup: > > > > > [ . . . ] > > > This looks like it is RCU/stop_machine related. The CPU is stuck in > > in stop_machine? I see that rcu_torture is running. Does this go away if > > you turn off rcu_torture? > > Grasping at straws... Does Lai's rcu_barrier() fix help?
which one is that?
Ingo
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