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Ingo Molnar (on Tue, 30 May 2006 14:29:50 +0200) wrote: > >* Mike Galbraith <efault@gmx.de> wrote: > >> > > BUG: warning at kernel/lockdep.c:2398/check_flags() >> > >> > this one could be related to NMI. We are already disabling NMI on >> > x86_64, but i thought i had it fixed up for i386 - apparently not. >> >> Booted with nmi_watchdog=0, no warning and no deadlock. > >ok, great. The patch below turns off NMI on i386 automatically. > >------------------- >Subject: lock validator: disable NMI watchdog if CONFIG_LOCKDEP, i386 >From: Ingo Molnar <mingo@elte.hu> > >The NMI watchdog uses spinlocks (notifier chains, etc.), >so it's not lockdep-safe at the moment. Where? Since 2.6.17-rc1 the notify_die() callback uses RCU, not spinlocks. - 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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