Re: port-i386/38289 (a possible problem in x86 pmap_update)

[Andrew Doran <ad%NetBSD.org@localhost>]

The following reply was made to PR port-i386/38289; it has been noted by GNATS.

From: Andrew Doran <ad%NetBSD.org@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: port-i386/38289 (a possible problem in x86 pmap_update)
Date: Sun, 30 Mar 2008 15:59:27 +0100

 On Sun, Mar 30, 2008 at 11:04:36PM +0900, YAMAMOTO Takashi wrote:
 
 > hm, it seems enough.  i haven't noticed the call in pmap_deactivate.
 > 
 > i used to have the following debug code in my local tree while ago.
 > sometimes it dropped into Debugger().  do you have any idea how it can 
 > happen?
 
 Nothing comes to mind. Maybe an interrupt above IPL_SCHED doing something
 that it should not? That seems very unlikely though. We could be missing a
 pmap_deactivate() somewhere but that also seems unlikely.
 
 Andrew