>It still caused the crash in the same manner and at the same location.
>Could someone help me with pointers to where I should start looking ?
>Disabling interrupts around the memcpy_toio() did not make any
>difference. Is this a hardware problem with the PCI card ? We are using
>a Xilinx core with out FPGA build into it.
memcpy_toio() in 2.4 is still using memcpy() which could use prefetch()
if you compile for certain processors. Prefetching io space could do
all sorts of nasties.
2.5 changed this define (in include/asm-i386/io.h) to use __memcpy
instead, which doesn't use prefetching.
Dave
Dave
-- | Dave Jones. http://www.codemonkey.org.uk - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/