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From: Chuck Lever <chuck.lever@oracle.com>
To: Bruce Fields <bfields@fieldses.org>
Cc: Linux NFS Mailing List <linux-nfs@vger.kernel.org>,
	linux-rdma@vger.kernel.org
Subject: Re: [PATCH v2 00/29] Possible NFSD patches for v5.8
Date: Tue, 19 May 2020 18:25:49 -0400	[thread overview]
Message-ID: <470B6839-FBC6-49BA-B633-DD49D271FD42@oracle.com> (raw)
In-Reply-To: <20200519212938.GG25858@fieldses.org>

Hi Bruce-

> On May 19, 2020, at 5:29 PM, Bruce Fields <bfields@fieldses.org> wrote:
> 
> 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@fieldses.org> 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....

Your reproducer isn't working for me on EL7.

[root@manet ~]# yum install krb5-devel python3-devel swig python3-gssapi python3-ply
Loaded plugins: ulninfo
Package krb5-devel-1.15.1-46.el7.x86_64 already installed and latest version
Package python3-devel-3.6.8-13.0.1.el7.x86_64 already installed and latest version
Package swig-2.0.10-5.el7.x86_64 already installed and latest version
No package python3-gssapi available.
No package python3-ply available.
Nothing to do
[root@manet ~]# logout
[cel@manet pynfs]$ ./nfs4.0/testserver.py server:/export/path --rundeps --maketree WRT15
Traceback (most recent call last):
  File "./nfs4.0/testserver.py", line 388, in <module>
    main()
  File "./nfs4.0/testserver.py", line 242, in main
    opt.machinename = os.fsencode(opt.machinename)
AttributeError: 'module' object has no attribute 'fsencode'
[cel@manet pynfs]$

--
Chuck Lever




  reply	other threads:[~2020-05-19 22:25 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-12 21:22 [PATCH v2 00/29] Possible NFSD patches for v5.8 Chuck Lever
2020-05-12 21:22 ` [PATCH v2 01/29] SUNRPC: Move xpt_mutex into socket xpo_sendto methods Chuck Lever
2020-05-12 21:22 ` [PATCH v2 02/29] svcrdma: Clean up the tracing for rw_ctx_init errors Chuck Lever
2020-05-12 21:22 ` [PATCH v2 03/29] svcrdma: Clean up handling of get_rw_ctx errors Chuck Lever
2020-05-12 21:22 ` [PATCH v2 04/29] svcrdma: Trace page overruns when constructing RDMA Reads Chuck Lever
2020-05-12 21:22 ` [PATCH v2 05/29] svcrdma: trace undersized Write chunks Chuck Lever
2020-05-12 21:22 ` [PATCH v2 06/29] svcrdma: Fix backchannel return code Chuck Lever
2020-05-12 21:22 ` [PATCH v2 07/29] svcrdma: Remove backchannel dprintk call sites Chuck Lever
2020-05-12 21:22 ` [PATCH v2 08/29] svcrdma: Rename tracepoints that record header decoding errors Chuck Lever
2020-05-12 21:22 ` [PATCH v2 09/29] svcrdma: Remove the SVCRDMA_DEBUG macro Chuck Lever
2020-05-12 21:22 ` [PATCH v2 10/29] svcrdma: Displayed remote IP address should match stored address Chuck Lever
2020-05-12 21:23 ` [PATCH v2 11/29] svcrdma: Add tracepoints to report ->xpo_accept failures Chuck Lever
2020-05-12 21:23 ` [PATCH v2 12/29] SUNRPC: Remove kernel memory address from svc_xprt tracepoints Chuck Lever
2020-05-12 21:23 ` [PATCH v2 13/29] SUNRPC: Tracepoint to record errors in svc_xpo_create() Chuck Lever
2020-05-12 21:23 ` [PATCH v2 14/29] SUNRPC: Trace a few more generic svc_xprt events Chuck Lever
2020-05-12 21:23 ` [PATCH v2 15/29] SUNRPC: Remove "#include <trace/events/skb.h>" Chuck Lever
2020-05-12 21:23 ` [PATCH v2 16/29] SUNRPC: Add more svcsock tracepoints Chuck Lever
2020-05-12 21:23 ` [PATCH v2 17/29] SUNRPC: Replace dprintk call sites in TCP state change callouts Chuck Lever
2020-05-12 21:23 ` [PATCH v2 18/29] SUNRPC: Trace server-side rpcbind registration events Chuck Lever
2020-05-12 21:23 ` [PATCH v2 19/29] SUNRPC: Rename svc_sock::sk_reclen Chuck Lever
2020-05-12 21:23 ` [PATCH v2 20/29] SUNRPC: Restructure svc_tcp_recv_record() Chuck Lever
2020-05-12 21:23 ` [PATCH v2 21/29] SUNRPC: Refactor svc_recvfrom() Chuck Lever
2020-05-12 21:24 ` [PATCH v2 22/29] SUNRPC: Restructure svc_udp_recvfrom() Chuck Lever
2020-05-12 21:24 ` [PATCH v2 23/29] SUNRPC: svc_show_status() macro should have enum definitions Chuck Lever
2020-05-12 21:24 ` [PATCH v2 24/29] NFSD: Add tracepoints to NFSD's duplicate reply cache Chuck Lever
2020-05-12 21:24 ` [PATCH v2 25/29] NFSD: Add tracepoints to the NFSD state management code Chuck Lever
2020-05-12 21:24 ` [PATCH v2 26/29] NFSD: Add tracepoints for monitoring NFSD callbacks Chuck Lever
2020-05-12 21:24 ` [PATCH v2 27/29] SUNRPC: Clean up request deferral tracepoints Chuck Lever
2020-05-12 21:24 ` [PATCH v2 28/29] NFSD: Squash an annoying compiler warning Chuck Lever
2020-05-12 21:24 ` [PATCH v2 29/29] NFSD: Fix improperly-formatted Doxygen comments Chuck Lever
2020-05-19 16:11 ` [PATCH v2 00/29] Possible NFSD patches for v5.8 J. Bruce Fields
2020-05-19 16:14   ` Chuck Lever
2020-05-19 21:29     ` Bruce Fields
2020-05-19 22:25       ` Chuck Lever [this message]
2020-05-19 23:32         ` Chuck Lever
2020-05-20 16:46           ` Bruce Fields
2020-05-20 16:48             ` Chuck Lever
2020-05-20 17:01               ` Bruce Fields
2020-05-20 17:01             ` Calum Mackay
2020-05-20 17:14               ` Bruce Fields

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