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Message-Id: <201008121915.o7CJFXVN031187@www.freebsd.org>
Date: Thu, 12 Aug 2010 19:15:33 GMT
From: Venkatesh Srinivas <me@endeavour.zapto.org>
To: freebsd-gnats-submit@FreeBSD.org
Subject: Lockup on 8.1-RC2 system enabling vm.idlezero
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>Number:         149587
>Category:       kern
>Synopsis:       [vm] Lockup on 8.1-RC2 system enabling vm.idlezero
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Aug 12 19:20:03 UTC 2010
>Closed-Date:    
>Last-Modified:  Fri Aug 27 17:30:08 UTC 2010
>Originator:     Venkatesh Srinivas
>Release:        8.1-RC2
>Organization:
>Environment:
FreeBSD manticore.acm.jhu.edu 8.1-RC2 FreeBSD 8.1-RC2 #3 r209893M: Fri Jul 16 16:00:49 EDT 2010     root@manticore.acm.jhu.edu:/usr/obj/usr/local/ncvs/src/sys/DTRACE  amd64

>Description:
Enabling vm.idlezero_enable results in a system lockup a short time later.
Problem also witnessed on 8.0-RELEASE; we are unable to drop to ddb on lockup.
>How-To-Repeat:
sysctl vm.idlezero_enable=1
>Fix:


>Release-Note:
>Audit-Trail:

From: Venkatesh Srinivas <me@endeavour.zapto.org>
To: bug-followup@freebsd.org, me@endeavour.zapto.org
Cc:  
Subject: Re: kern/149587: [vm] Lockup on 8.1-RC2 system enabling vm.idlezero
Date: Fri, 27 Aug 2010 12:52:30 -0400

 --0016e6d58a78f23df0048ed0f137
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 Per cpercival's suggestion, tested with the 4BSD scheduler; the problem is
 still present.
 
 -- vs
 
 --0016e6d58a78f23df0048ed0f137
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 Per cpercival&#39;s suggestion, tested with the 4BSD scheduler; the problem is still present.<br><br clear="all">-- vs<br>
 
 --0016e6d58a78f23df0048ed0f137--
>Unformatted:
