linux-kernel - Re: [PATCH 5/5] ARM: stacktrace: Convert stacktrace to generic ARCH

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: <ecc9376b-694b-e42c-977c-813be0a76792@huawei.com>
Date:   Wed, 27 Jul 2022 14:29:29 +0800
From:   Li Huafei <lihuafei1@...wei.com>
To:     Linus Walleij <linus.walleij@...aro.org>
CC:     <linux@...linux.org.uk>, <rmk+kernel@...linux.org.uk>,
        <ardb@...nel.org>, <will@...nel.org>, <mark.rutland@....com>,
        <broonie@...nel.org>, <peterz@...radead.org>, <mingo@...hat.com>,
        <acme@...nel.org>, <alexander.shishkin@...ux.intel.com>,
        <jolsa@...nel.org>, <namhyung@...nel.org>, <arnd@...db.de>,
        <rostedt@...dmis.org>, <nick.hawkins@....com>, <john@...ozen.org>,
        <mhiramat@...nel.org>, <ast@...nel.org>, <linyujun809@...wei.com>,
        <ndesaulniers@...gle.com>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-perf-users@...r.kernel.org>
Subject: Re: [PATCH 5/5] ARM: stacktrace: Convert stacktrace to generic
 ARCH_STACKWALK


Hi Linus,

On 2022/7/18 17:12, Linus Walleij wrote:
> On Tue, Jul 12, 2022 at 4:19 AM Li Huafei <lihuafei1@...wei.com> wrote:
> 
>> This patch converts ARM stacktrace to the generic ARCH_STACKWALK
>> implemented by commit 214d8ca6ee85 ("stacktrace: Provide common
>> infrastructure").
>>
>> Signed-off-by: Li Huafei <lihuafei1@...wei.com>
> 
> Looks good to me:
> Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
> 
> What I want to know is if this commit will avoid the problem mentioned
> in review of commit 3? I.e. the generic stackwalk code will make sure we are
> not running the task on another CPU, so that is why we could remove
> that check?
> 

In v3, I removed patch 3 of v1 and kept that check, see

  https://lore.kernel.org/lkml/20220727040022.139387-1-lihuafei1@huawei.com/

Given this change, I did not add your reviewed-by to patch 4 of v3. If 
you think patch 4 of v3 is still ok, please do let me know. Thank you 
very much!

Thanks,
Huafei

> Yours,
> Linus Walleij
> .
>