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Date: Fri, 29 Nov 1996 00:50:02 -0800 (PST)
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From: Jason Thorpe <thorpej@nas.nasa.gov>
Subject: Re: kern/2121: MAXBSIZE in param.h causes kernel panic if MSDOSFS LKM loaded 
Reply-To: Jason Thorpe <thorpej@nas.nasa.gov>
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The following reply was made to PR kern/2121; it has been noted by GNATS.

From: Jason Thorpe <thorpej@nas.nasa.gov>
To: jehamby@lightside.com
Cc: FreeBSD-gnats-submit@freebsd.org
Subject: Re: kern/2121: MAXBSIZE in param.h causes kernel panic if MSDOSFS LKM loaded 
Date: Fri, 29 Nov 1996 00:37:26 -0800

 On Thu, 28 Nov 1996 23:53:12 -0800 (PST) 
  jehamby@lightside.com wrote:
 
  > sys/param.h was recently changed to define MAXBSIZE as 32768 if MSDOSFS is
  > defined, or 16384 otherwise.  If MSDOSFS is not compiled into the kernel,
  > but instead loaded as an LKM (as I have done), then the kernel immediately
  > panics with: "panic: getblk: size(32768) > MAXBSIZE(16384)" when the LKM
  > is loaded.
 
 MAXBSIZE should probably just expand to MAXPHYS.  It seems seriously
 wrong to conditionalize it on some random config option.
 
 Jason R. Thorpe                                       thorpej@nas.nasa.gov
 NASA Ames Research Center                               Home: 408.866.1912
 NAS: M/S 258-6                                          Work: 415.604.0935
 Moffett Field, CA 94035                                Pager: 415.428.6939