hi all:
I met a problem of interrupt when I was transplanting ecos to mips r3k
board..
Stack base corrupt - i: 0
80104868: 00 00 00 00 64 39 C0 BF FD FF FF FF FF FF 7F FF
|....d9..........|
80104878: 1C 00 00 00 00 00 00 00 0A 00 00 00 1C 00 00 00
|................|
ASSERT FAIL: <3>thread.inl[119]void Cyg_HardwareThread::check_stack() Stack
base
corrupt
ASSERT FAIL: <3>[119]void Cyg_HardwareThread::check_stack() Stack base
corrupt
sometimes the problem can be:
ASSERT FAIL: <46F8>sched.cxx[176]static void
Cyg_Scheduler::unlock_inner() Bad current thread
ASSERT FAIL: <46F8>[176]static void Cyg_Scheduler::unlock_inner() Bad
current thread
I modified the source code like this..(in vector.S)
hal_interrupt_stack_call_pending_DSRs
...............
FUNC_START(hal_interrupt_stack_call_pending_DSRs)
mfc0 t0,status # get status register value
la v0,__interrupt_stack # v0 = interrupt stack
add v0,v0,1024 //added by me...
...............
FROM:
# lva k0,mipsreg_pc(sp) # K0 = return PC
# lsp sp,sp # load SP
TO:
lw sp,0(sp) # load SP
nop
lw k0,0x7c(sp) # K0 = return PC
the reason I modified as above is that case can make sure the stack is
correct..but after the program is runing...the stack is corrupted..:(
any ideas? thanks in advance
jet
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