Hi, > Now, reading from the disk seems to work perfectly, but writing > (dding /dev/zero to the block device) causes DMA timeouts every > few hundred megabytes - in between the timeouts, though, > throughput seems to be ok (~ 20 MB/s). > > Once the fallback mechanism has switched back to PIO4, things seem > to work perfectly, albeit slowly :-) FYI: I just tried forcing the device to MWDMA2, and that seems to work well, too - wrote some 10 GB without any errors. Any hints as to how to further debug this would be appreciated. Florian -- 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
