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([2001:778:e27f:a23:36c4:e19f:3c1:8a8]) by smtp.gmail.com with ESMTPSA id a3-20020a5d4d43000000b003177074f830sm13628167wru.59.2023.09.25.21.41.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 25 Sep 2023 21:41:30 -0700 (PDT) Message-ID: <8cb19861-7fd2-4d12-bd76-78bbb8fcee7c@gmail.com> Date: Tue, 26 Sep 2023 07:41:29 +0300 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Data corruption with 5.10.x client -> 6.5.x server To: Chuck Lever III Cc: Linux NFS Mailing List References: <6E4B8EB9-FA7E-4ABD-81AB-6FB0EF07EA46@oracle.com> <9691788F-2B62-4EB5-8879-CEDABD1B9D4B@oracle.com> <78c81a97-4324-c2df-27c0-917436ddee07@gmail.com> <6908E735-6912-4AEC-8AD7-995F2F8A144A@oracle.com> Content-Language: en-US, lt-LT From: =?UTF-8?Q?Mantas_Mikul=C4=97nas?= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on morse.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (morse.vger.email [0.0.0.0]); Mon, 25 Sep 2023 21:41:37 -0700 (PDT) On 25/09/2023 22.22, Chuck Lever III wrote: >> On Sep 24, 2023, at 2:24 PM, Chuck Lever III wrote: >> >>> On Sep 24, 2023, at 12:51 PM, Mantas Mikulėnas wrote: >>> >>> Right, whereas on the server, the first file is filled with "Hello World (4092 bytes)" as I originally tried to narrow down the issue. >>> >>> Meanwhile, 6.4.x (Arch) clients don't seem to be having any problems with the same server, and with seemingly the same mount options. >>> >>> Thanks for looking into it! >> I found /a/ problem with the nfsd-fixes branch and krb5i, but >> maybe not /your/ problem, and it's with a recent client. Scrounging >> a v5.10-vintage client is a little more work, we'll see if that's >> needed for confirming an eventual fix. > The issue I reproduced appears to be unrelated. > > I'm wondering if I can get you to bisect the server kernel using > your v5.10 client to test? good = v6.4, bad = v6.5 should do it. Yeah, I will try to bisect but it'll probably take a day or two.