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From:   "Huang, Ying" <ying.huang@intel.com>
To:     Ingo Molnar <mingo@kernel.org>
Cc:     Linus Torvalds <torvalds@linux-foundation.org>,
        Qian Cai <quic_qiancai@quicinc.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Juri Lelli <juri.lelli@redhat.com>,
        Vincent Guittot <vincent.guittot@linaro.org>,
        Dietmar Eggemann <dietmar.eggemann@arm.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
        Daniel Bristot de Oliveira <bristot@redhat.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Borislav Petkov <bp@alien8.de>,
        Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [GIT PULL] scheduler updates for v5.18
References: <YjhZUezhnamHAl0H@gmail.com> <Yjh58h8cpcPERVZA@qian>
        <CAHk-=whrqeX-8yHEdSCGFUyyC2sj=OLyeFR9civUiswR=A+PwA@mail.gmail.com>
        <Yjl8Lk2uPiZkXoM9@gmail.com> <Yjl/T0SBCo1zfkkS@gmail.com>
Date:   Tue, 22 Mar 2022 16:18:57 +0800
In-Reply-To: <Yjl/T0SBCo1zfkkS@gmail.com> (Ingo Molnar's message of "Tue, 22
        Mar 2022 08:48:31 +0100")
Message-ID: <871qyu5rim.fsf@yhuang6-desk2.ccr.corp.intel.com>
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Hi, Ingo,

Ingo Molnar <mingo@kernel.org> writes:

> * Ingo Molnar <mingo@kernel.org> wrote:
>
>> 
>> * Linus Torvalds <torvalds@linux-foundation.org> wrote:
>> 
>> > On Mon, Mar 21, 2022 at 6:13 AM Qian Cai <quic_qiancai@quicinc.com> wrote:
>> > >
>> > > On Mon, Mar 21, 2022 at 11:54:09AM +0100, Ingo Molnar wrote:
>> > > > Huang Ying (3):
>> > > >       sched/numa-balancing: Move some document to make it consistent with the code
>> > > >       sched/numa: Fix NUMA topology for systems with CPU-less nodes
>> > > >       sched/numa: Avoid migrating task to CPU-less node
>> > >
>> > > Linus, I don't think you want to merge this as-is. This will introduce a
>> > > kernel crash on arm64 NUMA as mentioned in this thread,
>> > 
>> > Ok, dropped from my queue. Thanks,
>> 
>> I've reverted the broken commit & will send another pull request after 
>> some testing. Sorry about that!
>
> Ended up using the fix below instead - it's tested already on the affected 
> system.
>

Thanks a lot for your help!

Is it a general rule to send a fixing patch for the bug of a patch
merged by tip tree?  Or a new version of the patch is acceptable too?

Best Regards,
Huang, Ying