Hi! I am trying to implement a software RAID driver. However, I am having problems sending a simple bio request to the physical device. I am using open_bdev_excl and submit_bio to accomplish this[1]. However, if I use submit_bio, an oops occurs. Does anyone have a clue of what the problem could be? I am testing the kernel module under VMware and I have added a disk (and partitioned it) for my tests: (output of fdisk -l) --- Disk /dev/hda: 6442 MB, 6442450944 bytes 255 heads, 63 sectors/track, 783 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/hda1 1 16 128488+ 82 Linux swap / Solaris /dev/hda2 * 17 783 6160927+ 83 Linux Disk /dev/hdb: 214 MB, 214748160 bytes 16 heads, 63 sectors/track, 416 cylinders Units = cylinders of 1008 * 512 = 516096 bytes Device Boot Start End Blocks Id System /dev/hdb1 1 208 104800+ 83 Linux /dev/hdb2 209 416 104832 83 Linux --- Razvan [1] http://rafb.net/p/Re5klW51.html -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ