On Wed, Apr 29, 2015 at 10:55:10AM -0400, Chuck Lever wrote: > > On Apr 28, 2015, at 4:21 PM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > > Currently the client will just crap out if a CB_NULL comes in at the > > same time as a slot controlled CB_COMPOUND that includes a CB_SEQUENCE. > > Under what circumstances does the server send a CB_NULL while a CB_COMPOUND > is in flight? When a client is under heavy loads from fsx or aio-stress, and we lose the connection (nfsd4_conn_lost is called) while doing heavy recalls. xfstests against a server offering pnfs layouts for which the client can't reach the storage devices is an easy reproducer. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html