Re: Linux-next-20190823: x86_64/i386: prot_hsymlinks.c:325: Failed to run cmd: useradd hsym

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----- Original Message -----
> On Tue, 2019-08-27 at 06:25 -0400, Jan Stancek wrote:
> > That theory is probably not correct for this case, since EIO I see
> > appears
> > to originate from write and nfs_writeback_result(). This function
> > also
> > produces message we saw in logs from Naresh.
> > 
> > I can't find where/how is resp->count updated on WRITE reply in
> > NFSv2.
> > Issue also goes away with patch below, though I can't speak about its
> > correctness:
> > 
> > NFS version     Type    Test    Return code
> > nfsvers=2       tcp     -b:base         0
> > nfsvers=2       tcp     -g:general      0
> > nfsvers=2       tcp     -s:special      0
> > nfsvers=2       tcp     -l:lock         0
> > Total time: 141
> > 
> > diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
> > index cbc17a203248..4913c6da270b 100644
> > --- a/fs/nfs/nfs2xdr.c
> > +++ b/fs/nfs/nfs2xdr.c
> > @@ -897,6 +897,16 @@ static int nfs2_xdr_dec_writeres(struct rpc_rqst
> > *req, struct xdr_stream *xdr,
> >                                  void *data)
> >  {
> >         struct nfs_pgio_res *result = data;
> > +       struct rpc_task *rq_task  = req->rq_task;
> > +
> > +       if (rq_task) {
> > +               struct nfs_pgio_args *args = rq_task-
> > >tk_msg.rpc_argp;
> > +
> > +               if (args) {
> > +                       result->count = args->count;
> > +               }
> > +       }
> >  
> >         /* All NFSv2 writes are "file sync" writes */
> >         result->verf->committed = NFS_FILE_SYNC;
> 
> Thanks! I've moved the above to nfs_write_done() so that we do it only
> on success (see
> http://git.linux-nfs.org/?p=trondmy/linux-nfs.git;a=commitdiff;h=3ba5688da709dd0f7d917029c206bc1848a6ae74
> )

Thanks, retested with 3ba5688da, all PASS:

NFS version     Type    Test    Return code
nfsvers=2       tcp     -b:base         0
nfsvers=2       tcp     -g:general      0
nfsvers=2       tcp     -s:special      0
nfsvers=2       tcp     -l:lock         0

NFS version     Type    Test    Return code
nfsvers=3       tcp     -b:base         0
nfsvers=3       tcp     -g:general      0
nfsvers=3       tcp     -s:special      0
nfsvers=3       tcp     -l:lock         0
nfsvers=3       tcp6    -b:base         0
nfsvers=3       tcp6    -g:general      0
nfsvers=3       tcp6    -s:special      0
nfsvers=3       tcp6    -l:lock         0

NFS version     Type    Test    Return code
nfsvers=4       tcp     -b:base         0
nfsvers=4       tcp     -g:general      0
nfsvers=4       tcp     -s:special      0
nfsvers=4       tcp     -l:lock         0
nfsvers=4       tcp6    -b:base         0
nfsvers=4       tcp6    -g:general      0
nfsvers=4       tcp6    -s:special      0
nfsvers=4       tcp6    -l:lock         0

Feel free to add also:

Reported-by: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx>
Tested-by: Jan Stancek <jstancek@xxxxxxxxxx>




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