5.2.1-RC2 kernel panic 12

[Dave McCammon]

On Fri, Feb 13, 2004 at 08:17:26PM -0500, Robert Watson wrote:
> On Fri, 13 Feb 2004, Dave McCammon wrote:
> 
> > I'm getting a kernel panic when attempting to mount an nwfs fs or when
> > doing a "ncplist s". I believe it also panics on shutdown with IPXrouted
> > but not 100 percent sure. I will verify soon if someone need the info. 
> > 
> > getting a kernel panic 12 
> > with instruction pointer at
> > c051ccb6.
> > 
> > "nm /boot/kernel/kernel |grep c051ccb6" turns up nothing
> > "nm /boot/kernel/kernel |grep c051ccb" turns up
> > #c051ccb0 T turnstile_head
> > 
> > Kernel panic references 
> > "stopped at turnstile_head + 0x6 mov1 0(%eax), %eax" 
> > or something similar.
> > there is other but I can't seem to capture it.
> > Haven't been able to get a crash dump either.
> > 
> > I was able to do the netware stuff fine until I upgraded from 5.2
> > release to 5.2.1. Upgraded to rc2 wednesday and am still having problem. 
> 
> I'm not aware of any changes in the RC2 snap relating to this code,
> however, it could be a change in memory layout or the like has triggered
> an existing bug.
> 
> Two requests:
> 
> (1) You have options DDB compiled into your kernel.  Could you hook up a
>     serial console and type in "trace" and "ps" when you get to the panic,
>     then paste the full panic message and trace into an e-mail? 
> 
> (2) If the system isn't in production use, or you can afford to
>     temporarily try out 5.2-CURRENT, it would be very useful to know if
>     the problem is present there. 
> Also, it might be interesting to try compiling in the various modules,
> such as ef, netncp, nwfs, into the kernel directly, just to see if it
> makes a difference.  Also, just to check: the kernel modules you're using
> are all from the kernel build you did, and not from another kernel?
>
All from complete system compile and install(as outlined in handbook).
I'll try the modules in the kernel before trying current.