Memory disk md bug
Torbjorn Kristoffersen
sgt at rasterburn.org
Thu Sep 11 02:20:57 PDT 2003
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
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