linux-kernel - Re: Mysterious RTC hangs on x86_64

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Message-ID: <463963AE.5010300@vmware.com>
Date:	Wed, 02 May 2007 21:23:10 -0700
From:	Zachary Amsden <zach@...are.com>
To:	Chuck Ebbert <cebbert@...hat.com>
CC:	Marcos Pinto <markybob@...il.com>, Andi Kleen <ak@...e.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Alessandro Zummo <a.zummo@...ertech.it>
Subject: Re: Mysterious RTC hangs on x86_64 - fixed, sort of

Chuck Ebbert wrote:
>
>   
>> CONFIG_HPET_EMULATE_RTC=y
>>     
>
> Did you try without that?
>   

Just did.  Still hangs same way; strace shows /sbin/hwclock dying after 
hundreds of RTC_RD_TIME.  And now /proc/interrupts shows no rtc 
interrupts being generated (expected, I gues).  Seems to take longer to 
crash, but this is a heisenbug.

Enough crashing for today.  Strangest thing is the NMI watchdog does not 
fire...

Zach
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