Subject: kern/10649: Using "options BUFCACHE=25" causes a kernel panic
To: None <>
From: Matthias Scheler <>
List: netbsd-bugs
Date: 07/21/2000 12:00:21
>Number:         10649
>Category:       kern
>Synopsis:       Using "options BUFCACHE=25" causes a kernel panic
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Jul 21 12:01:01 PDT 2000
>Originator:     Matthias Scheler
>Release:        2000/07/21
Matthias Scheler                  
System: NetBSD 1.5B NetBSD 1.5B (LYSSA) #1: Fri Jul 21 22:20:43 CEST 2000 i386

If I try to boot a kernel compiled with "options BUFCACHE=25" the system
panic early during system startup with this message:

cpu_startup: cannot allocate VM for buffers

[The system has 512MB main memory if that matters.]

A kernel compiled after manually commenting out "#define BUFCACHE 0x19" in
"opt_bufcache.h" works fine.

Compile a kernel with "options BUFCACHE=25" and try to boot it.

Sorry, I don't know.