[OpenAFS-port-darwin] Kernel Panic unmounting and re-mounting afs file system

[Claudio.Bisegni@lnf.infn.it]

Hi Enzo,
during development work of my afs preference pane, i started and stoped
afs many time(for testing, the preference let do it). i didn't get any
kernel panic on 10.4.x but i have seen that after three or four afs
start/stop i can't get anymore to unmount afs(1.4.x and 1.5.x). I have had
to restart osx. I thought tha probably was a bug on my application, but i
have seen that it occour also calling afs script by Hand via terminal.
I think it can be a little bug on afs kernel extension...

Claudio

> Hi,
>
> I have installed OpenAFS 1.5.2 on my MacBook Pro running MacOS X
> 10.4.10. At the startup the 'afs' volume is correctly mounted on my
> desktop, but if I use  the script /Library/StartupItems/OpenAFS/
> OpenAFS (start/stop) first  to unmount it and then to re-mount it ,
> so I get a kernel panic. Below the related information contained  in
> the panic.log file:
>
>
> ************************************************************************
> *********************************************
> Wed Aug 22 16:48:57 2007
> panic(cpu  caller 0x001A4A55): Unresolved kernel trap (CPU 0, Type
> 14=page fault), registers:
> CR0: 0x8001003b, CR2: 0x04376573, CR3: 0x00e86000, CR4: 0x000006e0
> EAX: 0x00000000, EBX: 0x043764d3, ECX: 0x043764d3, EDX: 0x00000001
> CR2: 0x04376573, EBP: 0x14173f84, ESI: 0x00000000, EDI: 0x00000000
> EFL: 0x00010202, EIP: 0x2af543a1, CS:  0x00000004, DS:  0x0000000c
>
> Backtrace, Format - Frame : Return Address (4 potential args on stack)
> 0x14173c78 : 0x128d08 (0x3cc0a4 0x14173c9c 0x131de5 0x0)
> 0x14173cb8 : 0x1a4a55 (0x3d24b8 0x0 0xe 0x3d1cdc)
> 0x14173dc8 : 0x19aeb4 (0x14173dd4 0xe 0x48 0xc)
> 0x14173f84 : 0x2af56c53 (0x2afd8c08 0x3479e4 0x4bc8e0 0x50)
> 0x14173fac : 0x2afc49dc (0x14143ba4 0x14143ba4 0x33b4404 0x14143ba4)
> 0x14173fc8 : 0x19ad2c (0x14143ba4 0x0 0x19e0b5 0x34686c8) Backtrace
> terminated-invalid frame pointer 0x0
>        Kernel loadable modules in backtrace (with dependencies):
>           org.openafs.filesystems.afs(1.5.20)@0x2af47000
>
> Kernel version:
> Darwin Kernel Version 8.10.1: Wed May 23 16:33:00 PDT 2007;
> root:xnu-792.22.5~1/RELEASE_I386
>
> ************************************************************************
> *************************************************
>
>
> Could anyone help me to solve this problem?
>
> Enzo
>
> ------------------------------------------------
> | Enzo Vitale						|
> | C.R. ENEA						|
> | Via Enrico Fermi, 45				|
> | 00044 Frascati (Roma) - Italy		|
> | Tel.:  +39 06 94005548			|
> | Fax : +39 06 94005524			|
> | E-mail: vitale@frascati.enea.it		|
> ------------------------------------------------
>
>
>
>