linux-kernel - Re: [PATCH 6/7] arch: __get_wchan || STACKTRACE

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 for Android: free password hash cracker in your pocket

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

Date:   Thu, 14 Oct 2021 12:07:23 +0100
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     keescook@...omium.org, jannh@...gle.com,
        linux-kernel@...r.kernel.org, vcaputo@...garu.com,
        mingo@...hat.com, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, dietmar.eggemann@....com,
        rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
        bristot@...hat.com, akpm@...ux-foundation.org,
        christian.brauner@...ntu.com, amistry@...gle.com,
        Kenta.Tada@...y.com, legion@...nel.org,
        michael.weiss@...ec.fraunhofer.de, mhocko@...e.com, deller@....de,
        zhengqi.arch@...edance.com, me@...in.cc, tycho@...ho.pizza,
        tglx@...utronix.de, bp@...en8.de, hpa@...or.com,
        mark.rutland@....com, axboe@...nel.dk, metze@...ba.org,
        laijs@...ux.alibaba.com, luto@...nel.org,
        dave.hansen@...ux.intel.com, ebiederm@...ssion.com,
        ohoono.kwon@...sung.com, kaleshsingh@...gle.com,
        yifeifz2@...inois.edu, jpoimboe@...hat.com,
        linux-hardening@...r.kernel.org, linux-arch@...r.kernel.org,
        vgupta@...nel.org, will@...nel.org, guoren@...nel.org,
        bcain@...eaurora.org, monstr@...str.eu, tsbogend@...ha.franken.de,
        nickhu@...estech.com, jonas@...thpole.se, mpe@...erman.id.au,
        paul.walmsley@...ive.com, hca@...ux.ibm.com,
        ysato@...rs.sourceforge.jp, davem@...emloft.net, chris@...kel.net
Subject: Re: [PATCH 6/7] arch: __get_wchan || STACKTRACE_SUPPORT

On Fri, Oct 08, 2021 at 01:15:33PM +0200, Peter Zijlstra wrote:
> It's trivial to implement __get_wchan() with CONFIG_STACKTRACE
> 
> Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>

This definitely needs testing, but looking at the code, I think this
will be compatible since we're essentially doing the same tests to
omit scheduling functions in both the old and replacement code.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!