On Sun, Nov 22, 2015 at 04:55:49PM +0200, Sagi Grimberg wrote: > >>Also note that 4.4-rc prefer_fr=y register_always=n > >>!register_always still blows up badly with XFS and ext4 due to > >>data integrity errors. > > So the register_always=N makes bad things happen? if we register > all the frags we're OK (i.e. register_always=Y)?
No. register_always=Y is already broken in 4.3, but register_always=N is now also broken in 4.4. The 4.3+ issue that only affects register_always=Y is the FR mapping of the indirect buffer that is not accounted for. The 4.4+ issue that also affects register_always=N is something in your MR patches when we hit a gappy SG list. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
