Memory disk md bug

[Torbjorn Kristoffersen]

To the FreeBSD programmers:

I found a bug, that just crashes the box, no kernel panic so I
didn't include a /var/crash/* file.

I get lots of these error messages:

 kmem_malloc(4096): kmem_map too small: 1351231231 total allocated

It's simple to test, with a command such as:

mdmfs -i 256 -s 200m -M md /mnt

cp -rp /usr/* /mnt   # Filling it with lots of files

Then your FreeBSD will crash after a few seconds/minutes.  I've only
tested this with FreeBSD 5.1.

My uname -a output:
FreeBSD neo.plex.no 5.1-RELEASE FreeBSD 5.1-RELEASE #0: Mon Aug 25
11:43:15 CEST 2003     root at neo.plex.no:/usr/src/sys/i386/compile/NEO 
i386


It's pretty much a GENERIC kernel, only a few unecessary drivers
removed.  However you should be able to replicate this crash easily.


Thanks, could you keep me informed?
 Torbjorn Kristoffersen