Re: RCU stalls -> lockup.

2014-10-09 Thread Dave Jones
On Sat, Oct 04, 2014 at 10:15:56PM -0400, Tejun Heo wrote: > On Thu, Oct 02, 2014 at 12:36:55PM -0700, Paul E. McKenney wrote: > > On Thu, Oct 02, 2014 at 01:55:15PM -0400, Dave Jones wrote: > > > I just hit this on my box running 3.17rc7 > > > It was followed by a userspace lockup. (Could stil

Re: RCU stalls -> lockup.

2014-10-06 Thread Dave Jones
On Sat, Oct 04, 2014 at 10:15:56PM -0400, Tejun Heo wrote: > On Thu, Oct 02, 2014 at 12:36:55PM -0700, Paul E. McKenney wrote: > > On Thu, Oct 02, 2014 at 01:55:15PM -0400, Dave Jones wrote: > > > I just hit this on my box running 3.17rc7 > > > It was followed by a userspace lockup. (Could stil

Re: RCU stalls -> lockup.

2014-10-04 Thread Tejun Heo
On Thu, Oct 02, 2014 at 12:36:55PM -0700, Paul E. McKenney wrote: > On Thu, Oct 02, 2014 at 01:55:15PM -0400, Dave Jones wrote: > > I just hit this on my box running 3.17rc7 > > It was followed by a userspace lockup. (Could still ping, and sysrq > > from the console, but even getty wasn't respondin

Re: RCU stalls -> lockup.

2014-10-02 Thread Paul E. McKenney
On Thu, Oct 02, 2014 at 01:55:15PM -0400, Dave Jones wrote: > I just hit this on my box running 3.17rc7 > It was followed by a userspace lockup. (Could still ping, and sysrq > from the console, but even getty wasn't responding on the console). > > I was trying to reproduce another bug faster, and