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Date: Wed, 8 Apr 2009 05:40:03 GMT
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To: freebsd-bugs@FreeBSD.org
From: Victor Sudakov <sudakov@sibptus.tomsk.ru>
Cc: 
Subject: Re: misc/133264: [build] make buildworld on RELENG_6_4 is broken on
	SMP machines
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The following reply was made to PR misc/133264; it has been noted by GNATS.

From: Victor Sudakov <sudakov@sibptus.tomsk.ru>
To: John Baldwin <jhb@freebsd.org>
Cc: bug-followup@freebsd.org
Subject: Re: misc/133264: [build] make buildworld on RELENG_6_4 is broken on SMP machines
Date: Wed, 8 Apr 2009 12:30:02 +0700

 John Baldwin wrote:
 > > > > > tree.  If that is the case, a build without -j4 should also fail and 
 > > > should 
 > > > > > show you where you have object files lying around.
 > > > > 
 > > > > Building on VMWare ESXi 3.5.0 Update 3 (FreeBSD as a guest OS) still
 > > > > fails occasionally if more than 1 CPU is allocated to the virtual
 > > > > machine. The failures are due to processes like sh, sed or cc1 dupming
 > > > > core on signal 11 during the build.
 > > > > 
 > > > > I am using a pristine source tree now.
 > > > > 
 > > > > The problem seems to be SMP related because enabling only 1 virtual
 > > > > CPU removes the problem.
 > > > > 
 > > > > Should I open a new PR?
 > > > 
 > > > Yes, this seems to be a different problem. :(  Do you see this building other 
 > > > source trees as well?  (e.g. RELENG_6 or RELENG_7).
 > > 
 > > RELENG_7_1 is not affected.
 > > RELENG_6 is not affected.
 > 
 > This is all while running the same kernel?
 
 Each its own kernel.
 
 On the 6.4-RELEASE SMP kernel, any large compilation will crash
 eventually with signal 11. Using "-j4" or higher seems to aggravate
 the problem.
 
 -- 
 Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
 sip:sudakov@sibptus.tomsk.ru