Messages in this thread | | | From | Ed Tomlinson <> | Subject | Re: Panic 2.6.24-3 NMI Watchdog detected LOCKUP on CPU 0 | Date | Sat, 1 Mar 2008 09:38:57 -0500 |
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On March 1, 2008, Thomas Gleixner wrote: > On Sat, 1 Mar 2008, Ed Tomlinson wrote: > > Hi, > > > > I have been seeing these since I installed .24 kernels. It does not seem to matter if I change the clocksource from tsc > > to apci_pm. Its happened with all .24 kernels I have tried starting with stock 2.6.24 upto 2.6.24-gentoo-r2 + 2.6.24-3 > > > > Ideas? > > Questions first. Is there a particular reason to use idle=poll ?
For another issue Ingo suggested using 'nmi_watchdog=2 idle=poll' to get the nmi_watchdog working. I can remove it if you think it will help.
> Idea: does the patch below help ?
I'm rebuilding any will let you know. It may take a while to trigger.
Thanks for the prompt response! Ed
> Thanks, > tglx > > --- > > arch/x86/kernel/process_64.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > Index: linux-2.6.24/arch/x86/kernel/process_64.c > =================================================================== > --- linux-2.6.24.orig/arch/x86/kernel/process_64.c > +++ linux-2.6.24/arch/x86/kernel/process_64.c > @@ -212,14 +212,13 @@ void cpu_idle (void) > current_thread_info()->status |= TS_POLLING; > /* endless idle loop with no priority at all */ > while (1) { > + tick_nohz_stop_sched_tick(); > while (!need_resched()) { > void (*idle)(void); > > if (__get_cpu_var(cpu_idle_state)) > __get_cpu_var(cpu_idle_state) = 0; > > - tick_nohz_stop_sched_tick(); > - > rmb(); > idle = pm_idle; > if (!idle) > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > >
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