5.1-BETA panic: bremfree: removing a buffer not on a queue

[Nick Hilliard]

> 5.1-BETA from last weekend:
> 
> $ uname -a
> FreeBSD pav.oook.cz 5.1-BETA FreeBSD 5.1-BETA #0: Sun May 11 13:45:37 CEST 2003     root at pav.oook.cz:/usr/obj/usr/src/sys/PAV  i386
> [...]
> syncing disks, buffers remaining... panic: bremfree: removing a buffer not on a queue
> Uptime: 6d6h53m9s

This problem has been happening in -current since March as far as I can
tell.  Is your system any of the following:  nfs server, ufs1 disk
layout on ata disks, running smp kernel?

Nick