Hi, I am using a SBC8260 board. I want to profile code from the interrupt signal to the interrupt handler using Port C and a scope. One of my time measures is in kernel/head.S right after the HardwareInterrupt at 0x500. My problem is that when I load the PDATC value,
the kernel crashes and I get a kernel stack overflow. I have no idea why. Any help is appreciated. Here is my modified head.S: HardwareInterrupt: EXCEPTION_PROLOG addi r3,r1, STACK_FRAM_OVERHEAD li r20,MSR_KERNEL /* PDATC |= BIT_31 */ lis 7,0xf0010d50 at h // PDATC addr : 0xf0010d50 lwz 0,0xf0010d50 at l(7) // kernel crash here ori 0,0,1 stw 0,0xf0010d50 at l(7) Thanks in advance. ___________________________________________________________ Do You Yahoo!? -- Une adresse @yahoo.fr gratuite et en fran?ais ! Yahoo! Mail : http://fr.mail.yahoo.com ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/