Re: misc/38425 (savecore confused if getbootfile(3) fails)

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

The following reply was made to PR misc/38425; it has been noted by GNATS.

From: Andrew Doran <ad%netbsd.org@localhost>
To: Simon Burge <simonb%NetBSD.org@localhost>
Cc: gnats-bugs%NetBSD.org@localhost, tls%netbsd.org@localhost
Subject: Re: misc/38425 (savecore confused if getbootfile(3) fails)
Date: Sun, 22 Feb 2009 09:18:18 +0000

 On Sun, Feb 22, 2009 at 08:05:14PM +1100, Simon Burge wrote:
 
 > dholland%NetBSD.org@localhost wrote:
 > 
 > > Synopsis: savecore confused if getbootfile(3) fails
 > > 
 > > State-Changed-From-To: open->feedback
 > > State-Changed-By: dholland%NetBSD.org@localhost
 > > State-Changed-When: Sun, 22 Feb 2009 08:09:40 +0000
 > > State-Changed-Why:
 > > Fixed?
 > 
 > You mean rev 1.75 of savecore.c?  That seems a bit hackish.  From my
 > reading, it just picks a few random device classes to ignore when you
 > read an incorrect value.  The /dev/console reference is that the random
 > read from /netbsd now seems to be most likely a "0", but it could be any
 > other valid device number.  It doesn't say protect you from reading a
 > tape drive for example, or other devices where a random read might not
 > be either safe or at least have random consequences.
 > 
 > savecore is "safer" for my particular problem, but I don't think it's
 > "fixed" yet..
 
 Making it use /dev/ksyms like Thor proposed would improve the situation..
 
 Andrew