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[172.10.233.147]) by smtp.gmail.com with ESMTPSA id h19sm11264559qkl.49.2020.06.15.13.29.56 (version=TLS1 cipher=ECDHE-ECDSA-AES128-SHA bits=128/128); Mon, 15 Jun 2020 13:29:56 -0700 (PDT) Date: Mon, 15 Jun 2020 13:29:42 -0700 (PDT) From: Hugh Dickins X-X-Sender: hugh@eggly.anvils To: Chris Murphy cc: Matthew Wilcox , Hugh Dickins , Vlastimil Babka , Linux Memory Management List , Chris Wilson Subject: Re: 5.7.0 page allocation failure: order:0, mode:0x400d0 In-Reply-To: Message-ID: References: <20200606151254.GO19604@bombadil.infradead.org> <20200608114445.GT19604@bombadil.infradead.org> <20200610233349.GL19604@bombadil.infradead.org> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Rspamd-Queue-Id: 9F3AF1818756B X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam02 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, 10 Jun 2020, Chris Murphy wrote: > On Wed, Jun 10, 2020 at 5:43 PM Chris Murphy wrote: > > On Wed, Jun 10, 2020 at 5:33 PM Matthew Wilcox wrote: > > > > > > On Wed, Jun 10, 2020 at 05:31:14PM -0600, Chris Murphy wrote: > > > > On Mon, Jun 8, 2020 at 3:33 PM Hugh Dickins wrote: > > > > > > > > > > ChrisM, could you try with the patch below, and see if it works > > > > > for you - I hope it doesn't just give you a blank screen. > > > > > > > > Did this. Does compile, and boot, no blank screen, and webkitgtk > > > > compiles without error (it ends in OOM, as expected). > > > > > > ... but the OOM doesn't point back to i915's shmem functions any more? > > > > It doesn't, but... > > > > I'm going to redo the test because Fedora Workstation 32 enables > > earlyoom by default, and that's what triggered the OOM. Not the > > kernel's oomkiller. But in the original report, earlyoom was also > > enabled but not triggered, yet I got the reported splats. > > Completes, no splats. (And no OOM.) Great, thanks a lot for reporting and testing, Chris: patch coming up in reply to this - effectively the same as the patch you're using for 5.7 (and which we shall use for stable backports), but 5.8-rc1 looks a little different thereabouts. Hugh