netdev - Re: [PATCH 6.4 0/6] 6.4.3-rc2 review

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Message-ID: <6b374e37-68b3-346a-a6b7-212640e9c868@gmail.com>
Date: Wed, 12 Jul 2023 22:01:33 -0600
From: David Ahern <dsahern@...il.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: Naresh Kamboju <naresh.kamboju@...aro.org>,
 Netdev <netdev@...r.kernel.org>,
 "open list:KERNEL SELFTEST FRAMEWORK" <linux-kselftest@...r.kernel.org>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org,
 patches@...ts.linux.dev, linux-kernel@...r.kernel.org,
 torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
 linux@...ck-us.net, shuah@...nel.org, patches@...nelci.org,
 lkft-triage@...ts.linaro.org, jonathanh@...dia.com, f.fainelli@...il.com,
 sudipm.mukherjee@...il.com, srw@...dewatkins.net, rwarsow@....de,
 conor@...nel.org, Qingfang DENG <qingfang.deng@...lower.com.cn>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Paolo Abeni <pabeni@...hat.com>, YOSHIFUJI Hideaki
 <yoshfuji@...ux-ipv6.org>, Masahide NAKAMURA <nakam@...ux-ipv6.org>,
 Ville Nuorvala <vnuorval@....hut.fi>, Arnd Bergmann <arnd@...db.de>,
 Pavel Machek <pavel@...x.de>
Subject: Re: [PATCH 6.4 0/6] 6.4.3-rc2 review

On 7/12/23 12:02 PM, Jakub Kicinski wrote:
> On Wed, 12 Jul 2023 18:41:46 +0530 Naresh Kamboju wrote:
>> That is the commit id from stable-rc tree.
>>
>> I have re-tested the reported issues multiple times and
>> it seems that it is intermittently reproducible.
>> Following list of links shows kernel crashes while testing
>> selftest net pmtu.sh
>>
>> 1)
>> Unable to handle kernel paging request at virtual address
>> https://lkft.validation.linaro.org/scheduler/job/6579624#L4648
>>
>>
>> 2)
>> include/net/neighbour.h:302 suspicious rcu_dereference_check() usage!
>>
>> https://lkft.validation.linaro.org/scheduler/job/6579625#L7500
>> https://lkft.validation.linaro.org/scheduler/job/6579626#L7509
>> https://lkft.validation.linaro.org/scheduler/job/6579622#L7537
>> https://lkft.validation.linaro.org/scheduler/job/6579623#L7469
> 
> Nothing jumps out at me.
> 
> David, any ideas?

No. Since it is a selftest in the linux repo, any chance for a git
bisect based on that one test?