On Friday 21 April 2006 09:24, Albert Lee wrote: > From the dmesg, PX-712SA looks like a PATA drive bridged to SATA. > Could you try the atapi_dmadir=1 module parameter and check if it helps? > (For older kernels, please #define ATAPI_ENABLE_DMADIR > in include/linux/libata.h and recompile the kernel.) Indeed the PX-712SA is a bridged PATA drive. In the POST message it's even reported as PX-712A (the ATAPI model). I've tried to pass libata.atapi_dmadir=1 to the kernel but looking at dmesg nothing changed (using kernel 2.6.16). I even changed libata.h and defined ATAPI_ENABLE_DMADIR - same result. What else could I try? Reinhard
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