Re: Need help debugging NFS issues new to 4.20 kernel

Benjamin Coddington
2019-02-08T12:01:16Z

On 7 Feb 2019, at 10:25, Jason Tibbitts wrote:

>>>>>> "BC" == Benjamin Coddington <bcodding@redhat.com> writes:
>
> BC> -10063 is -NFS4ERR_SEQ_MISORDERED.. I wonder why the
> BC> trace_nfs4_sequence_done() in nfs41_sequence_process() isn't showing
> BC> up in the trace? Ah.. my fault - add "nfs4:*" to the set_events.
>
> OK, attached is another trace. Here's the same sequence I snipped
> previously:

So the client is calling SEQ over and over.. xs_stream_read_data sees
-EAGAIN.. I'm not an expert here, and not seeing what's going wrong.

Hmm.. commit c443305529d1d3d3bee0d68fdd14ae89835e091f changed
xs_read_stream_reply() to return recv.copied instead of "ret" to
xprt_complete_rqst()..

You could try reverting that commit and see if the problem goes away..

Ben