help with asm code?
cfriesen at nortelnetworks.com
Thu Apr 22 00:00:34 EST 2004
Benjamin Herrenschmidt wrote:
>> lis r5,hrt_ak_offsets at ha
>> addi r5,r5,hrt_ak_offsets at l
>> lbzx r6,r6,r5
>> add r10,r4,r6
>>I'm having a small problem, in that when I run this code it hangs my
>>kernel. Any ideas what's wrong? The values in r6 and r5 seem to match
>>what I expect, but when I do the lbzx it dies.
> I don't know for sure, maybe you MMU context is wrong at the time ?
The code is being called from fast_exception_return, syscall_exit_cont,
> How do you know it dies there and not elsewhere ?
If I remove the lbzx/add lines, everything works fine. With the lbzx
line it dies, even if r10 is overwritten right away.
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