On Wed, 7 Feb 2007 01:19:36 +0100 Luigi Genoni <genoni@xxxxxx> wrote: > Hi, > since upgrading to kernel 2.6.20 my pata disk, using new pata driver, is > initialized maximum in DMA33 mode (and obviously performances drop > consequently), as you can see from: Interesting. > Willing to test any patch. Firstly can you see if its consistently the case that booting 2.6.20 gives UDMA33 and 2.6.19 UDMA100 over a few reboots. If it is please drop the 2.6.19 drivers/ata/pamd_amd into 2.6.20 and try that. Thanks Alan - 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