sparc64/151404: commit references a PR

[dfilter service]

The following reply was made to PR sparc64/151404; it has been noted by GNATS.

From: dfilter at FreeBSD.ORG (dfilter service)
To: bug-followup at FreeBSD.org
Cc:  
Subject: Re: sparc64/151404: commit references a PR
Date: Thu, 14 Oct 2010 21:46:59 +0000 (UTC)

 Author: marius
 Date: Thu Oct 14 21:46:53 2010
 New Revision: 213873
 URL: http://svn.freebsd.org/changeset/base/213873
 
 Log:
   Explicitly lower the PIL to 0 as part of enabling interrupts, similar to
   what is done on other platforms. Unlike as with the sched_throw(NULL)
   called on BSPs during their startup apparently there's nothing which will
   reliably lower it on APs. I'm unsure why this only came up on V215 though,
   breaking these with r207248. My best guess is that these are the only
   supported ones so far fast enough to loose some race.
   
   PR:		151404
   MFC after:	3 days
 
 Modified:
   head/sys/sparc64/sparc64/machdep.c
 
 Modified: head/sys/sparc64/sparc64/machdep.c
 ==============================================================================
 --- head/sys/sparc64/sparc64/machdep.c	Thu Oct 14 21:45:41 2010	(r213872)
 +++ head/sys/sparc64/sparc64/machdep.c	Thu Oct 14 21:46:53 2010	(r213873)
 @@ -590,6 +590,7 @@ sparc64_init(caddr_t mdp, u_long o1, u_l
  	 * enable them.
  	 */
  	intr_init2();
 +	wrpr(pil, 0, 0);
  	wrpr(pstate, 0, PSTATE_KERNEL);
  
  	/*
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