Re: kern/49305: deadlocks on sparc64 SMP

[Michael <macallan%netbsd.org@localhost>]

The following reply was made to PR kern/49305; it has been noted by GNATS.

From: Michael <macallan%netbsd.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/49305: deadlocks on sparc64 SMP
Date: Fri, 31 Oct 2014 16:50:57 -0400

 On Thu, 30 Oct 2014 03:25:01 +0000 (UTC)
 Masao Uebayashi <uebayasi%gmail.com@localhost> wrote:
 
 >  If that's true, a missing membar_consumer() before:
 >  
 >  http://nxr.netbsd.org/xref/src/sys/kern/subr_pcq.c#165
 >  
 >  otherwise pcq_items[] values may be cached?
 
 Just tried that, got a deadlock after a couple hours of build.sh -j4