Re: Data corruption with 5.10.x client -> 6.5.x server

["Mantas Mikulėnas" <grawity@gmail.com>]

On 25/09/2023 22.22, Chuck Lever III wrote:
>> On Sep 24, 2023, at 2:24 PM, Chuck Lever III <chuck.lever@oracle.com> wrote:
>>
>>> On Sep 24, 2023, at 12:51 PM, Mantas Mikulėnas <grawity@gmail.com> 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!<nfs_krb5i_working_6.4client.pcap>
>> 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.