Re: [PATCH v2 00/29] Possible NFSD patches for v5.8

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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.



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