linux-kernel - Re: irq0 stops working

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Message-ID: <470B1BBF.3020203@sw.ru>
Date:	Tue, 09 Oct 2007 10:12:15 +0400
From:	Vasily Averin <vvs@...ru>
To:	Jan Engelhardt <jengelh@...putergmbh.de>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Arjan van de Ven <arjan@...ux.intel.com>, devel@...nvz.org
Subject: Re: irq0 stops working

Jan Engelhardt wrote:
> On Oct 9 2007 09:26, Vasily Averin wrote:
>> On one of our servers timer interrupts (i.e irq0) are stops working. As result
>> any kernel timers do not triggers and tasks waiting some signals from timers
>> hangs forever.
> 
> What kernel.. and tried CONFIG_NO_HZ=n?

Originally I've noticed this issue on RHEL5 kernels, but then I've reproduced it
on latest mainstream kernels, in my last attempt it was 2.6.23-rc7.

Thank you for for your tips about  CONFIG_NO_HZ=n, will try to to it.

thank you,
	Vasily Averin

OpenVZ Linux Kernel Team
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