RTAI/fusion 0.5 Testsuite problems

Daniel Rohrbach dro at sysgo.com
Wed Sep 15 10:19:16 CEST 2004


Hi at all.

I setted up RTAI/fusion 0.5 with Kernel 2.6.7 at an embedded 486-Board.
Running the 'latency'-test is no problem. But if I abort it, following failure 
is given back:

************************************************************************************************************
Unable to handle kernel NULL pointer dereference at virtual address 00000000
 printing eip:                                                              
00000000      
*pde = 00000000
Oops: 0000 [#1]
Modules linked in: rtai_native rtai_nucleus rtai_hal
CPU:    0                                           
EIP:    0060:[<00000000>]    Not tainted
EFLAGS: 00010202   (2.6.7-elinos-77-adeos) 
EIP is at 0x0                              
eax: 00000000   ebx: c0242720   ecx: c0242720   edx: c48422c0
esi: c48422c0   edi: 00000000   ebp: c2d6a000   esp: c2d6bf6c
ds: 007b   es: 007b   ss: 0068                               
Process rmmod (pid: 103, threadinfo=c2d6a000 task=c2dfb120)
Stack: c0124cc0 00000000 69617472 74616e5f 00657669 c029b0e0 00000020 00000282 
       c01228f8 00000282 00000000 00000020 c2d6bfc4 00000001 bffffd50 00000000 
       00fffd50 bffffd78 bffffd50 00000000 bffffd50 c0105b04 bffffd50 00000880 
Call Trace:                                                                    
 [<c0124cc0>] sys_delete_module+0x140/0x180
 [<c01228f8>] __adeos_handle_event+0x108/0x110
 [<c0105b04>] syscall_call+0x7/0x14           
                                   
Code:  Bad EIP value.
 Segmentation fault  
ERROR: Module rtai_nucleus is in use by rtai_native
ERROR: Module rtai_hal is in use by rtai_native,rtai_nucleus
***************************************************************************************************************

If I run it again, there are no failures anymore. I think it has something to 
do with the module-unloading, but I'm not sure.

Can somebody tell me, what's going wrong here? 
Where can I find a documentation about the testsuite?

Greetings,
Daniel





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