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Date: Fri, 10 Feb 2012 12:39:50 GMT
From: Michael Pounov <misho@elwix.org>
To: freebsd-gnats-submit@FreeBSD.org
Subject: Linux emulation freezes machine after heavy usage of cpu and memory
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>Number:         164957
>Category:       kern
>Synopsis:       [linux] [hang] Linux emulation freezes machine after heavy usage of cpu and memory
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-emulation
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Feb 10 12:40:15 UTC 2012
>Closed-Date:    
>Last-Modified:  Sun Apr 20 00:22:21 UTC 2014
>Originator:     Michael Pounov
>Release:        FreeBSD 9.0-STABLE
>Organization:
ELWIX
>Environment:
FreeBSD misho.batmbg.com 9.0-STABLE FreeBSD 9.0-STABLE #1: Thu Feb  9 09:59:10 EET 2012     root@misho.batmbg.com:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
Linux emulation freezes machine after heavy usage of cpu and memory

After random time, since begin cross-compiling within linux emulation
environment. Machine totally freeze. I not see any kind of useful clues
like memory dumps or entering into internal kernel debug DDB* ...

(* remark:: I configured dump device and ddb kernel support ;-))

P.S. Products of Wind River with which I work has not native support for
FreeBSD.  This problem is important for me! I worked from many time like
that and after upgrade from FreeBSD-8 to FreeBSD-9 I faced with this
strange problem ...

>How-To-Repeat:
Compile into linux emulation some big source tree or I guess to see similar
result when you get all physical memory and cpu time. 
>Fix:
Fast workaround:

Install virtualbox or qemu. Install inside it some linux distribution.
Export your home directory through NFS and mount from linux distro home dir ;)
And all your further linux related tasks you should execute into linux guest :>

That is fast and ugly workaround solution ... :):)
>Release-Note:
>Audit-Trail:
Responsible-Changed-From-To: freebsd-bugs->freebsd-emulation 
Responsible-Changed-By: linimon 
Responsible-Changed-When: Sun Apr 20 00:21:09 UTC 2014 
Responsible-Changed-Why:  
reclassify. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=164957 
>Unformatted:
