panic with cdrecord-devel @ Mon Oct 20 21:28:57 EEST 2003

[Marius Strobl]

On Tue, Oct 21, 2003 at 10:27:11AM +0300, Paulius Bulotas wrote:
> Hello,
> 
> 5.1-CURRENT #0: Mon Oct 20 21:28:57 EEST 2003
> 
> % cdrecord -scanbus
> panics, and trace looks like:
> vmapbuf
> cam_periph_mapmem
> xptioctl
> spec_ioctl
> spec_vnoperate
> vn_ioctl
> ioctl
> syscall(2f,2f,2f,ffffffff,3)
> Xint0x80_syscall
> 
> Any ideas?
> 

I was told that a `camcontrol devlist` triggers a panic in
sys/kern/vfs_bio.c:3729 on recent -current and that turning off
INVARIANTS and WITNESS avoids it. This may be related.