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From: Thomas Gleixner <tglx@linutronix.de>
To: Joshua Hoblitt <josh@hoblitt.com>
Cc: Ingo Molnar <mingo@elte.hu>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, bugme-daemon@bugzilla.kernel.org,
	j_kernel@hoblitt.com
Subject: Re: [Bugme-new] [Bug 11543] New: kernel panic: softlockup in tick_periodic() ???
Date: Tue, 16 Sep 2008 07:14:40 -0700 (PDT)	[thread overview]
Message-ID: <alpine.LFD.1.10.0809160711360.3606@apollo.tec.linutronix.de> (raw)
In-Reply-To: <20080916025431.GB16764@hoblitt.com>

On Mon, 15 Sep 2008, Joshua Hoblitt wrote:

> In addition to the deadlocks, we still have the watchdog warning:
> 
> [    0.460034] Testing NMI watchdog ... 
> [    0.532557] WARNING: CPU#0: NMI appears to be stuck (0->0)!
> [    0.533301] Please report this to bugzilla.kernel.org,
> [    0.536635] and attach the output of the 'dmesg' command.
> 
> Perhaps an HPET problem:
> 
> [    0.993800] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 31
> [    0.999969] hpet0: 3 32-bit timers, 25000000 Hz
> [    1.004396] ACPI: RTC can wake from S4
> [    1.006637] Clockevents: could not switch to one-shot
> mode:<6>Clockevents: could not switch to one-shot mode: lapic is not functional.
> [    1.009844] Could not switch to high resolution mode on CPU 3
> [    1.009848] Clockevents: could not switch to one-shot mode: lapic is not functional.
> [    1.009852] Could not switch to high resolution mode on CPU 2
> [    1.009855] Clockevents: could not switch to one-shot mode: lapic is not functional.
> [    1.009858] Could not switch to high resolution mode on CPU 1
> [    1.009969]  lapic is not functional.
> [    1.056944] Could not switch to high resolution mode on CPU 0

No, that's documented behaviour:

> > > [    0.126660] APIC timer registered as dummy, due to nmi_watchdog=1!

Can you try nmi_watchdog=2 ?

Thanks,

	tglx

  reply	other threads:[~2008-09-16 14:16 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-11543-10286@http.bugzilla.kernel.org/>
2008-09-12  0:02 ` Andrew Morton
2008-09-12  2:54   ` j_kernel
2008-09-12  2:57     ` Andrew Morton
2008-09-12  9:13   ` Ingo Molnar
2008-09-13  0:13     ` Joshua Hoblitt
2008-09-15 21:06       ` Joshua Hoblitt
2008-09-16  2:54         ` Joshua Hoblitt
2008-09-16 14:14           ` Thomas Gleixner [this message]
2008-09-16 17:56             ` Cyrill Gorcunov
2008-09-16 17:57               ` Cyrill Gorcunov
2008-09-17  2:43 j_kernel
2008-09-17  7:13 ` Cyrill Gorcunov
2008-09-17  9:20   ` j_kernel
2008-09-17  9:38     ` Cyrill Gorcunov
2008-09-17 12:59     ` Cyrill Gorcunov
2008-09-17 13:13       ` Ingo Molnar
2008-09-17 13:29         ` Cyrill Gorcunov
2008-09-17 16:27     ` Cyrill Gorcunov
2008-09-17 20:48       ` j_kernel
2008-09-18  7:09         ` Cyrill Gorcunov

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