On Tue, May 19, 2020 at 12:14:22PM -0400, Chuck Lever wrote: > > > > On May 19, 2020, at 12:11 PM, J. Bruce Fields <bfields@xxxxxxxxxxxx> wrote: > > > > I'm getting a repeatable timeout failure on python 4.0 test WRT15. In > > pynfs, run: > > > > ./nfs4.0/testserver.py server:/export/path --rundeps --maketree WRT15 > > > > Looks like it sends WRITE+GETATTR(FATTR4_SIZE) compounds with write > > offset 0 and write length taking on every value from 0 to 8192. > > > > Probably an xdr decoding bug of some kind? > > My first thought is to bisect, but I don't see a particular change in my > v5.8 series that would plausibly introduce this class of problem. It's SUNRPC: Refactor svc_recvfrom(). That was just from a quick automated bisect. I haven't tried to figure out where the bug is.... --b.