On 01/21/2016 07:57 AM, Stefan Haberland wrote:
Hi, unfortunately commit e36f62042880 "block: split bios to maxpossible length" breaks the DASD driver on s390. We expect the block requests to be multiple of 4k in size. With the patch applied I see the requests split up in multiple of 512 byte and therefore the requests get rejected and lots of I/Os fail.
Sigh, that's definitely a bug. I'll take a look at it and see if I can get a tested fix in for 4.5-rc1. If not, we'll revert it, again.
-- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html