From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8C2B4CD37AC for ; Sat, 9 May 2026 02:31:47 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id EB1FF6B02ED; Fri, 8 May 2026 22:31:46 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id E628D6B02EF; Fri, 8 May 2026 22:31:46 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D786E6B02F0; Fri, 8 May 2026 22:31:46 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id C97996B02ED for ; Fri, 8 May 2026 22:31:46 -0400 (EDT) Received: from smtpin28.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 76EBFC1CD0 for ; Sat, 9 May 2026 02:31:46 +0000 (UTC) X-FDA: 84746305812.28.2B7FE3D Received: from out-188.mta1.migadu.com (out-188.mta1.migadu.com [95.215.58.188]) by imf16.hostedemail.com (Postfix) with ESMTP id 39DE0180002 for ; Sat, 9 May 2026 02:31:43 +0000 (UTC) Authentication-Results: imf16.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=t7OBeIUy; spf=pass (imf16.hostedemail.com: domain of qi.zheng@linux.dev designates 95.215.58.188 as permitted sender) smtp.mailfrom=qi.zheng@linux.dev; dmarc=pass (policy=none) header.from=linux.dev ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1778293904; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=isoMVqmiA39mM7GIpQVXu+Zu5R5lf1TBBevgqgkjmOE=; b=0RyczqgjpWDi6+A1HieyXtbJbEL6wmjjdgk0w+Ngh0sn9OTq1uiz7mGrDsQ9nuP1Atzq9w UXpWhbV/CGZuu7uvd2CKhMqBJXWBpirQEgmP8xDv59H/YhiyqMHZrF+hFWA8m59VZm4teR PJcsS10HLEWzTWPmW5a1MMPyUeTo2mg= ARC-Authentication-Results: i=1; imf16.hostedemail.com; dkim=pass header.d=linux.dev header.s=key1 header.b=t7OBeIUy; spf=pass (imf16.hostedemail.com: domain of qi.zheng@linux.dev designates 95.215.58.188 as permitted sender) smtp.mailfrom=qi.zheng@linux.dev; dmarc=pass (policy=none) header.from=linux.dev ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1778293904; a=rsa-sha256; cv=none; b=4zXgiZ8kgdNWhbVVkQxTSVL0neMjnEgEDRxLqlKGKa8eRE+ti9gUMxamouMtilJPDCiW97 3DfKsNM64XmWKU2ZIyDf5dGerwwuD2aTP5t9j/1yu1o3vcTOMlDES/EVSzI14OxTODRTrG ZQQky7tCfwxR0RDLlqQ/TTfpFdQe/I4= Message-ID: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1778293900; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=isoMVqmiA39mM7GIpQVXu+Zu5R5lf1TBBevgqgkjmOE=; b=t7OBeIUyKK8fXSiN+xna9GkR7p4NwqefMbij1e8D74GOypyjdZDkhoArPhuZVaLhL59w/0 JQgmkV8WJTeALVBdGfHmqe+M6Yg/X5UDJ3GmG14SQvxKPFrA68miMpu1o1BtToCsSNDYK5 9+Dlr2RHsXkZlRF1zG1jBTqfzlJSJW0= Date: Sat, 9 May 2026 10:31:15 +0800 MIME-Version: 1.0 Subject: Re: [PATCH v5 0/5] mm, drm/ttm, drm/xe: Avoid reclaim/eviction loops under fragmentation To: Andrew Morton , Matthew Brost , Dave Chinner Cc: intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Qi Zheng , Roman Gushchin , Johannes Weiner , Shakeel Butt , Kairui Song , Barry Song , Axel Rasmussen , Yuanchu Xie , Wei Xu , Tvrtko Ursulin , =?UTF-8?Q?Thomas_Hellstr=C3=B6m?= , Carlos Santa , Christian Koenig , Huang Rui , Matthew Auld , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Daniel Colascione , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20260506033300.3534883-1-matthew.brost@intel.com> <20260508170355.c937b91cdd63a11e56d2225d@linux-foundation.org> X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Qi Zheng In-Reply-To: <20260508170355.c937b91cdd63a11e56d2225d@linux-foundation.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Migadu-Flow: FLOW_OUT X-Stat-Signature: zai8pjhbzs6um1iwg1gf7qqqkppw9j4b X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 39DE0180002 X-Rspam-User: X-HE-Tag: 1778293903-956802 X-HE-Meta: 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 afjPlW7R SPE4ka56C7ehyHgiy/rPcQ+rjysEaxTuSSMhlzlBBwaOTytryGt6hzB0q76DPo/9/Un+p7MpJumE5ZgVczTiijyrA2TeusErBIwg0M/kqG/bX3TcQkr/VO5UcCLazDDYm2jyh4PAMlzFnlTs/h9dNesnLhHEeR9fcUa6s2S9NZdgVJI5fTNf1LK04j7f4q0BDFrJom09WGw4dlOSl3C3BZsDO6ast1zzInJ+xldORh/SXqQOhDFpeKULo8qf0Qg5r/cntDOSkc4fl4Dzc84NMlibX9Gy76o33gTKPx/6hdV/LPbTuemapc0zc9bIadUhdwO7d Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 5/9/26 8:03 AM, Andrew Morton wrote: > On Tue, 5 May 2026 20:32:55 -0700 Matthew Brost wrote: > >> TTM allocations at higher orders can drive Xe into a pathological >> reclaim loop when memory is fragmented: >> >> ... >> >> This series addresses the issue in three layers: > > Thanks. AI review asked a few things, nothing looked very serious to > my eye: > > https://sashiko.dev/#/patchset/20260506033300.3534883-1-matthew.brost@intel.com I recall Dave having concerns about the design itself in v4 [1], but since he wasn't CC'ed on the whole patchset, there seems to be no further conclusion. Maybe it's best to wait for his further feedback. ;) [1]. https://lore.kernel.org/all/afQE-2JOzfOm8enM@dread/