Troubleshooting "UNEXPECTED FATAL ERROR in staprun" on ARM9 target.

[Grant Edwards <grant dot b dot edwards at gmail dot com>]

I figured out (or so I thought) the issues with cross-compiling runtime
support for an ARM9 target (Atmel AT91SAM9G20), but the resulting
staprun dies like so:

   # staprun -vvv hello.ko 
   staprun:parse_modpath:290 inpath=hello.ko
   staprun:main:273 modpath="hello.ko", modname="hello"
   staprun:init_staprun:211 init_staprun
   staprun:insert_module:60 inserting module
   staprun:insert_module:79 module options: _stp_bufsize=0
   Error inserting module '/root/hello.ko': File exists
   Retrying, after attempted removal of module hello (rc 0)
   staprun:insert_module:60 inserting module
   staprun:insert_module:79 module options: _stp_bufsize=0
   staprun:init_ctl_channel:31 Opened
   /sys/kernel/debug/systemtap/hello/.cmd (3)
   
   UNEXPECTED FATAL ERROR in staprun. Please file a bug report.
   Segmentation fault

Here's how I built hello.ko:

   $ stap -p4 -a arm \
          -B CROSS_COMPILE=/home/nextgen/toolchain/bin/arm-linux- \
          -r /home/nextgen/kernel/linux-2.6.30 \
          -m hello  hello.stp
   
And here's what hello.stp looks like:

   probe begin
   {
     print("hello world\n")
     exit()
   }

Any hints on figuring out what's going wrong?
   
-- 
Grant Edwards               grant.b.edwards        Yow! My NOSE is NUMB!
                                  at               
                              gmail.com