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Date:      Wed, 29 Dec 2010 16:10:14 GMT
From:      Colin Percival <cperciva@freebsd.org>
To:        freebsd-xen@FreeBSD.org
Subject:   Re: kern/153511: [xen] [panic] kernel panic when xen disk is detached
Message-ID:  <201012291610.oBTGAE9R095337@freefall.freebsd.org>

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The following reply was made to PR kern/153511; it has been noted by GNATS.

From: Colin Percival <cperciva@freebsd.org>
To: bug-followup@FreeBSD.org, cperciva@freebsd.org
Cc:  
Subject: Re: kern/153511: [xen] [panic] kernel panic when xen disk is detached
Date: Wed, 29 Dec 2010 08:08:54 -0800

 This panic is happening because we don't have a .pic_disable_intr -- when
 the interrupt is being killed, pic_disable_intr gets invoked which doesn't
 work very well when it's NULL.
 
 I have a patch which seems to fix this panic, which I'll commit later today
 or tomorrow assuming no problems turn up in further testing.
 
 -- 
 Colin Percival
 Security Officer, FreeBSD | freebsd.org | The power to serve
 Founder / author, Tarsnap | tarsnap.com | Online backups for the truly paranoid



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