Message-ID: <78806040-5725-103f-fe55-8c6d9ced6e63@linaro.org>
Date:   Sat, 18 Feb 2023 16:09:41 +0100
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101
 Thunderbird/102.7.1
Subject: Re: Regression: NULL pointer dereference after NFS_V4_2_READ_PLUS
 (commit 7fd461c47)
Content-Language: en-US
To:     Thorsten Leemhuis <regressions@leemhuis.info>,
        Linux regressions mailing list <regressions@lists.linux.dev>,
        Anna Schumaker <Anna.Schumaker@Netapp.com>,
        Trond Myklebust <trond.myklebust@hammerspace.com>
Cc:     linux-nfs@vger.kernel.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
References: <f591b13c-4600-e2a4-8efa-aac6ad828dd1@linaro.org>
 <65ae10cd-a086-47c6-c881-d1385d7fcf42@leemhuis.info>
 <5150343c-e13d-ed15-e59a-bc14f0db89da@leemhuis.info>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <5150343c-e13d-ed15-e59a-bc14f0db89da@leemhuis.info>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 18/02/2023 05:42, Linux regression tracking #update (Thorsten
Leemhuis) wrote:
> [TLDR: This mail in primarily relevant for Linux regression tracking. A
> change or fix related to the regression discussed in this thread was
> posted or applied, but it did not use a Link: tag to point to the
> report, as Linus and the documentation call for. Things happen, no
> worries -- but now the regression tracking bot needs to be told manually
> about the fix. See link in footer if these mails annoy you.]
> 
> On 08.01.23 09:52, Linux kernel regression tracking (#adding) wrote:
>> On 07.01.23 16:44, Krzysztof Kozlowski wrote:
>>>
>>> Bisect identified commit 7fd461c47c6c ("NFSv4.2: Change the default
>>> KConfig value for READ_PLUS") as one leading to NULL pointer exception
>>> when mounting NFS root on NFSv4 client:
>> [...]
>> Thanks for the report. To be sure the issue doesn't fall through the
>> cracks unnoticed, I'm adding it to regzbot, the Linux kernel regression
>> tracking bot:
>>
>> #regzbot ^introduced 7fd461c47
>> #regzbot title nfs: NULL pointer dereference since NFS_V4_2_READ_PLUS is
>> enabled by default
>> #regzbot ignore-activity
> 
> #regzbot fix: 896e090eefedeb8a715ea19938a2791c32679

I see it was posted and merged as "Revert "NFSv4.2: Change the default
KConfig value for READ_PLUS"". It's nice to give credits to people who
report bugs with "Reported-by" tag.

Best regards,
Krzysztof