Chuck Silvers wrote:-

> since this is repeatable, could you build a kernel with this line added:
> 
> 	makeoptions	DEBUG="-g"
> 
> and get a crashdump for me when it panics?

Sorry, but it panics again: "dump panic: wddump: polled command has been
queued".  savecore doesn't find a core on reboot.

Anyway, the back trace goes like this:-

panic
__assert
uvm_fault
trap #6
copyout
mmrw
spec_read
ufsspec_read
VOP_READ
vn_read
dofileread
sys_read
syscall_plain

If you want the arguments to the functions, let me know.  It'll take a long
time to write them all down, so I didn't bother.  If you'd like other info,
let me know too.

Incidentally, the dump above is with the most recent trap.c and locore.s;
I don't think backing them up a revision made any difference.

Thanks,

Neil.