Re: [PATCH 5.10 000/657] 5.10.20-rc4 review

Guenter Roeck
2021-03-04T00:02:06Z

On 3/3/21 8:12 AM, Naresh Kamboju wrote:
> On Wed, 3 Mar 2021 at 00:59, Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
>>
>> This is the start of the stable review cycle for the 5.10.20 release.
>> There are 657 patches in this series, all will be posted as a response
>> to this one. If anyone has any issues with these being applied, please
>> let me know.
>>
>> Responses should be made by Thu, 04 Mar 2021 19:25:07 +0000.
>> Anything received after that time might be too late.
>>
>> The whole patch series can be found in one patch at:
>> https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.10.20-rc4.gz
>> or in the git tree and branch at:
>> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.10.y
>> and the diffstat can be found below.
>>
>> thanks,
>>
>> greg k-h
>
> Results from Linaro’s test farm.
> All our builds are getting PASS now.
> But,
> Regressions detected on all devices (arm64, arm, x86_64 and i386).
> LTP pty test case hangup01 failed on all devices
>
> hangup01 1 TFAIL : hangup01.c:133: unexpected message 3
>
> Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
>
> This failure is specific to stable-rc v5.10.20-rc4 and v5.11.3-rc3
> Test PASS on the v5.12-rc1 mainline and Linux next kernel.
>
> Following two commits caused this test failure,
>
> Linus Torvalds <torvalds@linux-foundation.org>
> tty: implement read_iter
>
> Linus Torvalds <torvalds@linux-foundation.org>
> tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer
>

Upstream has:

e71a8d5cf4b4 tty: fix up iterate_tty_read() EOVERFLOW handling
ddc5fda74561 tty: fix up hung_up_tty_read() conversion

Those are not present in v5.10.20-rc4, which may possibly
explain the problem.

Guenter