SR getting corrupted

I am working on a project which involves CC2500 and msp430f2274. I have been
struggling with a bug for more than 4 weeks, and still unable to debug it.
My code stops working after an hour (just time, however device keep
receiving packets)

During my debugging, I have checked stack which is fine. I checked globals
too, which have legitimate values too.

Whenever my code gets stuck, msp430-gdb bt  always always gives me just this

0x00008092 in main ()

When I dissemble my code around that address, 

08084: b0 12 72 86               CALL    #wor_start
    08088: b0 12 38 90               CALL    #initializeRandomTimer
    0808c: 32 d2                     EINT    
    0808e: 32 d0 50 00               BIS     #0x0050, SR
    08092: 5f 42 0e 02               MOV.B   &radioReady, R15
    08096: 5f 93                     CMP.B   #0x0001, R15


I believe some how my SR is getting corrupted. I would really appreciate why
it could be getting corrupted. I mean what could be possible reasons for
getting SR corruption.

Thanks and regards.
Ravi 



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