Hi guys, I went crazy on that one: I managed to reproduce the bug w/ another disk (Seagate barracuda 7200.9). Then after a 'make clean' on the tree and a compilation from ground of the stock 3.12-rc4, I never managed to reproduce the error I had. I tested again with a WD30EFRX, the WD2500AAJS and the Seagate barracuda 7200.9, all the three in two different instances of the NAS: the error is gone. The only logical conclusion is that it was due to some missing 'make clean' on my tree. I guess I owe you all some apologies for the noise. Cheers, a+ ps: and yes, I hate myself for having overwritten the erroneous image -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html