Hang at probing on VMware installation

[Poul-Henning Kamp]

In message <7mk6vj4lis.wl at black.imgsrc.co.jp>, Jun Kuriyama writes:

>> After using 3 floppy images, virtual machine is locked up at probing
>> stage.  Here is the last output with verbose boot:
>> 
>> http://www.imgsrc.co.jp/~kuriyama/tmp/20040824-vmware.png
>
>I've confirmed which commit breaks this by using binary search from
>{build,install}kernel on old (working) 5-current.
>
>Result is:
>
>2004-08-20 10:00:00+00 OK
>2004-08-20 15:30:00+00 Bad
>
>so, we have phk's commit below between them.
>
>-----
>phk         2004-08-20 15:14:25 UTC
>  
>  FreeBSD src repository
>  
>  Modified files:
>    sys/sys              fdcio.h
>    usr.sbin/fdcontrol   fdcontrol.c
>    usr.sbin/fdformat    fdformat.c
>    usr.sbin/fdread      fdutil.c
>    sys/dev/fdc          fdc.c fdc_acpi.c fdc_isa.c fdc_pccard.c
>                         fdcvar.h
>  Log:
>  Rewrite of the floppy driver to make it MPsafe & GEOM friendly:
>-----
>
>VMware said "unrecoverable error" and "Exception 0xc0000005 {access
>violation} has occured" and virtual machine has stopped.

Is there any way to get mode detailed diagnostics ?  Like the
program counter or anything ?

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.