Neil, The raid is being done in dom0, any idea how to set that from the kernel cmdline? - chris On Sun, Feb 21, 2010 at 3:21 AM, Neil Brown <neilb@xxxxxxx> wrote: > On Sun, 21 Feb 2010 19:16:40 +1100 > Neil Brown <neilb@xxxxxxx> wrote: > >> On Sun, 21 Feb 2010 02:26:42 -0500 >> chris <tknchris@xxxxxxxxx> wrote: >> >> > That is exactly what I didn't want to hear :( I am running >> > 2.6.26-2-xen-amd64. Are you sure its a kernel problem and nothing to >> > do with my chunk/block sizes? If this is a bug what versions are >> > affected, I'll build a new domU kernel and see if I can get it working >> > there. >> > >> > - chris >> >> I'm absolutely sure it is a kernel bug. > > though it just occurs to me that you might be able to work around it. > If, in the guest, you set "max_sectors_kb" to "4" > in /sys/block/whatever/queue, it might avoid the problem. > > NeilBrown > > >> I have no idea what version might be affected. Probably all, but >> as xen isn't fully in main line it isn't easy for me to explore. >> >> I suggest you contact the xen developers (or whoever you got xen from). >> I'm happy to discuss the problem with someone who knows about xen block >> device access, but I don't want to go hunting to find such a person. >> >> NeilBrown > > -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html