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b=f+UaSY8l63lGr7187Oqi5dgWlzYCfWCFaR+aTlR56miEamPTBI4jbIlQqtDV4H+mh BLRVFIVd9jZkJpPOplQT67gOCLCjIxjBiDjg6DWbAS1RCwcdMi8TkwxsG5AcBeLf8j 8hgPaTi/N6aVWdyw6QbM8e5ynYzOOsMInDRLXP3Tk2Cxm8qnQvFd0ecIYIAEwDwjD+ GHnAbdyPr1B1jcq0txZD4N+6/U8T6KlIS3FmJXW8dej3Z66+3iVYyi/v8kCg9+3zCq ST/TH1O9+5Jop7hjGAp31uVHgqKJq3BTf4vFndIHSV+Da7tw148EFhdvLcMoJWhNmm m9us8+cBvgVMA== Message-ID: <5d10eba8-11cb-4031-84e1-a394ca5b4cba@kernel.org> Date: Mon, 26 Oct 2026 22:09:40 +0100 X-Archived-By: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 00/16] mm/shmem: various (urgent?) fixes To: Gregory Price Cc: Andrew Morton , Zi Yan , Joshua Hahn , Rakie Kim , Ying Huang , Johannes Weiner , Vladimir Davydov , Michal Hocko , Hugh Dickins , Baolin Wang , Lukas Czerner , Carlos Maiolino , Christian Brauner , Jan Kara , Daniel Verkamp , Jeff Xu , Muchun Song , Oscar Salvador , David Stevens , "Matthew Wilcox (Oracle)" , William Kucharski , Chris Li , Kairui Song , Nhat Pham , Miaohe Lin , Naoya Horiguchi , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Chris Mason , stable@vger.kernel.org, Josef Bacik , Eva Kurchatova References: <20261026-fixes_shmem-v1-0-703206d5fa0c@kernel.org> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 95A63140007 X-Stat-Signature: rdt18c6hamr4qkh1htknkoqb8oueyic6 X-Rspamd-Server: rspam06 X-Spam-Status: No, score=-12.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=4.0.1 X-Rspam-User: X-HE-Tag: 1793048991-217524 X-HE-Meta: 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 DAMKaUNj +ow+eOvp8VG0SgmUqdfk/tBN+Ps8wA+DfVofyGMwBbsNHo9PYttmpi08BqrYRdj4hrRgG3TwEV2svjJQ09JhVx+vRwCYHmAS3ickjgSwXC7Ekc/cTngqIL3x6FodRJ1cwglZ1M2eM8N0omQrtWwk+JX9vVzokaoUAlTuQvSTk0a3uIxwpQRuiBhU5HsFjg0pOB5rrm13LY/9fUhfl3LektFld8VaSBw1uejWLNw96joXlO06ostD8/PnvVcFoZ/tCvUC+EBQEuY4PmbEGKiPKBdNunlcGpV1laewd19a0wyRNm57QNR9fC19s38FKYXmB7QDpMzy/2TlhdTgPjzJ3f3UiHJL+yfFrl9ouwVZRuAAbGJbrbW/zTAZrw4CIkjcVqwRfs8IgqZyc72gyq3vfkIuH9jkjtZ0s5Sf77wZ4jQ2Tl6pDravwy8sZHw== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On 10/26/26 21:08, Gregory Price wrote: > On Mon, Oct 26, 2026 at 10:40:33AM +0100, David Hildenbrand (Arm) wrote: >> I did my best trying to test these fixes. I was able to reproduce some >> of the things (including unkillable truncation hangs), and the fixes seemed >> to help. > > Given the (urgent?) you're the unwilling recipient of my schlopp-testing > harness. The good news is that the selftests (attached) all look > reasonable and reproduce quite easily. Thanks! Yeah, I had ran a bunch myself, but not as many as you managed to trigger I think. > > Everything below is largely clanker-generated, but after a review I feel > comfortable with tagging this. > > I was able to directly test: > #1-#5 > #10 > #12-#16 > > so for those you can add: > > Tested-by: Gregory Price (Meta) > > feel free to take or leave the selftests. Thanks, no time to polish selftest ;) -- Cheers, David