Messages in this thread | | | Date | Sat, 27 Dec 2014 11:48:48 -0500 | From | Dave Jones <> | Subject | Re: frequent lockups in 3.18rc4 |
| |
On Fri, Dec 26, 2014 at 07:14:55PM -0800, Linus Torvalds wrote: > On Fri, Dec 26, 2014 at 4:36 PM, Dave Jones <davej@codemonkey.org.uk> wrote: > > > > > > Oh - and have you actually seen the "TSC unstable (delta = xyz)" + > > > "switched to hpet" messages there yet? > > > > not yet. 3 hrs in. > > Ok, so then the > > INFO: rcu_preempt detected stalls on CPUs/tasks: > > has nothing to do with HPET, since you'd still be running with the TSC enabled.
right. 16hrs later, that's the only thing that's spewed.
> My googling around did find a number of "machine locks up a few hours > after switching to hpet" reports, so it is possible that the whole rcu > stall and nmi watchdog thing is independent and unrelated to the > actual locking up.
possible. I'm heading home in a few hours to start the wipe of that box. This is going to be 'the one that got away', but at least we've managed to find a number of other things that needed fixing along the way.
Dave
| |