On Mon, May 08, 2017 at 09:18:46AM -0400, Brian Foster wrote: > What exactly is a NULL call? Can this be reproduced easily? It's a sunrpc concept of a dummy procedure that does nothing but ensures the communication works. > It may also be interesting to enable the xfs_zero_eof() tracepoint > (trace-cmd start -e 'xfs:xfs_zero_eof') and see what the last few > entries are from /sys/kernel/debug/tracing/trace_pipe. Yeah. I have a customer that uses Linux 4.9-stable with XFS and nfsd exports in a product, so it's certainly not something that happens too easily, but memory pressure might be a factor. I'll see if I can figure out what happens if I inject ENOMEM in the said spot. -- 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
