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Date:   Wed, 13 Feb 2019 11:29:38 +0000
From:   Mel Gorman <mgorman@techsingularity.net>
To:     Will Deacon <will.deacon@arm.com>
Cc:     Yury Norov <yury.norov@gmail.com>,
        Andrea Arcangeli <aarcange@redhat.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        linux-kernel@vger.kernel.org, Michal Hocko <mhocko@kernel.org>,
        linux-arm-kernel@lists.infradead.org,
        David Rientjes <rientjes@google.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Zi Yan <zi.yan@cs.rutgers.edu>,
        Vlastimil Babka <vbabka@suse.cz>
Subject: Re: 5.0-rc kernel hangs on early boot
Message-ID: <20190213112938.GP9565@techsingularity.net>
References: <20190213082134.GA21834@yury-thinkpad>
 <20190213111843.GA1912@brain-police>
 <20190213112141.GO9565@techsingularity.net>
 <20190213112520.GB1912@brain-police>
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On Wed, Feb 13, 2019 at 11:25:21AM +0000, Will Deacon wrote:
> > Thanks Will.
> > 
> > While I agree that going OOM early is a problem and would explain why
> > the boosting logic was hit at all, it's still the case that the boosting
> > should not divide by zero. Even if the booting is broken due to a lack
> > of memory, I'd still not prefer to crash due to 1c30844d2dfe272d58c.
> 
> Yup, sorry, our previous mails crossed paths. Your patch looks sensible in
> its own right, I'm just left wondering why we're OOM so early during boot!
> 

I completely agree that it's worth pinning down both issues.

-- 
Mel Gorman
SUSE Labs