linux-kernel - Re: [PATCH stable 0/1] x86: aperfmperf: bug report

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <963da72d-ce85-ea0b-2100-33d191f724ac@huawei.com>
Date:   Fri, 4 Nov 2022 10:26:01 +0800
From:   Yipeng Zou <zouyipeng@...wei.com>
To:     <tglx@...utronix.de>, <bp@...en8.de>, <mingo@...hat.com>,
        <x86@...nel.org>, <hpa@...or.com>, <rafael.j.wysocki@...el.com>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH stable 0/1] x86: aperfmperf: bug report

Ping~

在 2022/10/21 10:17, Yipeng Zou 写道:
> Recently i was doing some work about calculating CPU frequency on x86 on
> stable branch linux-5.10.y, and there is a problem which i descrip in
> the commit message.
>
> I've noticed that it has been abandoned on the mainline. On the mainline
> it becomes to update [a,m]cnt in timer code with HZ frequency, and it is
> actually calculated at the time of reading the cpu freqency. This solves
> the problem above.
>
> So, Are there other reasons why the stable branch doesn't have these
> changes?, this patch is just to ask how we plan to fix it.
>
> Yipeng Zou (1):
>    x86: aperfmperf: fix overflow problem in the concurrency scenario
>
>   arch/x86/kernel/cpu/aperfmperf.c | 4 ----
>   1 file changed, 4 deletions(-)
>
-- 
Regards,
Yipeng Zou