Kernel panic on use of ping - over a kiss AX.25 interface

Kernel panic on use of ping - over a kiss AX.25 interface

[Sriram Chadalavada]

Hi everyone, 

    I am running a modified version of kissattach on a
MMU-less uCdimm (Motorola MC68VZ328) to create an
AX.25 kiss network interface.

# kissattach -m 512 /dev/ttyS1 radio 192.168.0.9
# ttyS1 console mode off

Contents of axports file:

# name callsign speed paclen window description
#
radio   KC0POH-1        9600    255     2       Radio 
                                    437.385 MHz
1200bps


The ifconfig of the interface is as follows:

ax0       Link encap:AMPR AX.25  HWaddr KC0POH-1
          inet addr:192.168.0.9  Bcast:192.168.0.255 
Mask:255.255.255.0
          UP BROADCAST RUNNING  MTU:512  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0
frame:0
          TX packets:0 errors:0 dropped:0 overruns:0
carrier:0
          collisions:0 txqueuelen:10

However, when I try to ping a peer machine over the
radio link, I get a kernel panic.

# ping -c 1 192.168.0.8
PING 192.168.0.8 (192.168.0.8): 56 data bytes
Kernel panic: Aiee, killing interrupt handler
                                                      
                         
In interrupt handler - not syncing


Relevant kernel configuration is:
# Amateur Radio support
#
CONFIG_HAMRADIO=y
                                                      
                         
#
# Packet Radio protocols
#
CONFIG_AX25=y
# CONFIG_AX25_DAMA_SLAVE is not set
# CONFIG_NETROM is not set
# CONFIG_ROSE is not set
                                                      
                         
#
# AX.25 network device drivers
#
                                                      
                         
#
# AX.25 network device drivers
#
CONFIG_MKISS=y

We need to resolve this problem ASAP to complete the
radio link for our project. I strongly request experts
to help me solve it. Please let me know if you need
any other information.

Thanks in advance,
Sriram





		
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Re: Kernel panic on use of ping - over a kiss AX.25 interface

[Don Koch]

swenggsri@yahoo.com said:
> Relevant kernel configuration is: 

You left out an important part: which version of the kernel?

-- 
Don Koch
http://www.krl.com/

Re: Kernel panic on use of ping - over a kiss AX.25 interface

[Sriram Chadalavada]

Dan,
  
  The kernel version is 2.4.24. 

Cheers,
Sriram 

--- Don Koch <aardvark@krl.com> wrote:

> 
> swenggsri@yahoo.com said:
> > Relevant kernel configuration is: 
> 
> You left out an important part: which version of the
> kernel?
> 
> -- 
> Don Koch
> http://www.krl.com/
> 

> 
> 



		
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Re: Kernel panic on use of ping - over a kiss AX.25 interface

[Ralf Baechle DL5RB]

On Sun, Jan 30, 2005 at 03:22:10PM -0800, Sriram Chadalavada wrote:

>   The kernel version is 2.4.24. 

And seems to be uclinux, unlike what probably most of us are using, so
you're probably on your own.

  Ralf

Re: Kernel panic on use of ping - over a kiss AX.25 interface

[Sriram Chadalavada]

Ralf,
  
It is uClinux. While it has its own intricacies, if
you are aware of any kernel-related kiss/AX.25 bugs,
please do let me know.

Thanks,
Sriram

--- Ralf Baechle DL5RB <ralf@linux-mips.org> wrote:

> On Sun, Jan 30, 2005 at 03:22:10PM -0800, Sriram
> Chadalavada wrote:
> 
> >   The kernel version is 2.4.24. 
> 
> And seems to be uclinux, unlike what probably most
> of us are using, so
> you're probably on your own.
> 
>   Ralf
> 



		
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Re: Kernel panic on use of ping - over a kiss AX.25 interface

[Ralf Baechle DL5RB]

On Sun, Jan 30, 2005 at 06:35:48PM -0800, Sriram Chadalavada wrote:

> It is uClinux. While it has its own intricacies, if
> you are aware of any kernel-related kiss/AX.25 bugs,
> please do let me know.

Nothing that would trigger in your case.

To my knowlege you're the first to trying to use amateur radio code on
uclinux, so beware, you may just have entered a pleasant minefield ...

  Ralf