Bug in open-dev

[Mark Cave-Ayland]

Hi all,

I'm currently in the middle of chasing a bug in the Forth open-dev word 
and was wondering if anyone can help me out? It only seems to show up on 
SPARC32, and only on disk/cdrom devices. What happens is that sometimes 
open-dev leaves an extra 1 on the stack which breaks some of my 
subsequent code, e.g.


Configuration device id QEMU version 1 machine id 32
UUID: 00000000-0000-0000-0000-000000000000
CPUs: 1 x FMI,MB86904
Welcome to OpenBIOS v1.0 built on Jul 31 2010 15:05
   Type 'help' for detailed information

0 > showstack  ok
0 > s" ttya" open-dev  ok
-24b1f8 < 1 > close-dev  ok
0 > s" cdrom" open-dev  ok
1 -24aff0 < 2 > close-dev  ok
1 < 1 > drop  ok


I think that something in the tree layout of SPARC32 is triggering a bug 
somewhere in (path-resolution) but I haven't quite managed to grok it 
yet. Anyone have any ideas as to what could be causing this?


ATB,

Mark.

-- 
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
Sirius Corporation plc - control through freedom
http://www.siriusit.co.uk
t: [phone]

Sirius Labs: http://www.siriusit.co.uk/labs

[Mark Cave-Ayland]

Mark Cave-Ayland wrote:

  I think that something in the tree layout of SPARC32
is triggering a bug 
 somewhere in (path-resolution) but I haven't quite managed to grok it 
 yet. Anyone have any ideas as to what could be causing this?
Gah. After several hours chasing this bug expecting it to be a corner 
case in the path resolution code, it is in fact a bug in the SCSI driver 
open method, for which the fix is already there but commented! Will 
commit the fix shortly...


ATB,

Mark.

-- 
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
Sirius Corporation plc - control through freedom
http://www.siriusit.co.uk
t: [phone]

Sirius Labs: http://www.siriusit.co.uk/labs