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]) by smtp.lore.kernel.org (Postfix) with ESMTP id BC62FC25B76 for ; Sat, 1 Jun 2024 15:37:12 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 204666B009E; Sat, 1 Jun 2024 11:37:12 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 1B3ED6B00A0; Sat, 1 Jun 2024 11:37:12 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 02CB66B00A1; Sat, 1 Jun 2024 11:37:11 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id D4F196B009E for ; Sat, 1 Jun 2024 11:37:11 -0400 (EDT) Received: from smtpin30.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 6B06A8077B for ; Sat, 1 Jun 2024 15:37:11 +0000 (UTC) X-FDA: 82182723462.30.74AA973 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by imf11.hostedemail.com (Postfix) with ESMTP id 2265940010 for ; Sat, 1 Jun 2024 15:37:08 +0000 (UTC) Authentication-Results: imf11.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=Vb5cteSE; dmarc=pass (policy=none) header.from=redhat.com; spf=pass (imf11.hostedemail.com: domain of david@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=david@redhat.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1717256229; 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=jh2GJuW9QbJ96XxMyegQnI4EqW1e76u3PBYm+bYYEnM=; b=jXKFU8HEDv8pF8fbuZKZf3Lplgrh0xj8FywmylJBmBuW9BFHKZ12M8oTI+sSVc3+5wFAk4 bdjQRnCM5/BMn0QbcsvJhAGyhBwz9l1TSxxWbU7+OQBNsoZO+PYewG4ZIzgjg30SJXT6DY DjdKu/7dnZz0QB8dbOuEcTgPVgAxmbE= ARC-Authentication-Results: i=1; imf11.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=Vb5cteSE; dmarc=pass (policy=none) header.from=redhat.com; spf=pass (imf11.hostedemail.com: domain of david@redhat.com designates 170.10.129.124 as permitted sender) smtp.mailfrom=david@redhat.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1717256229; a=rsa-sha256; cv=none; b=JFK7PbB4woeEENDb50t39zqEt+lu/RrChzm5FZ35RvGlAj1MrW2ix6CFS4+/+4n8Aolinp uGP0lt0xuDwCgzwkss9XZtgxL2k/Y2MHrK6Pvza2Ndt+ldNGEMfzOAvYMinHgpBGEYLu58 7dsa5RGHqO65aVt6cSQegMLE99jS12k= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1717256228; 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:autocrypt:autocrypt; bh=jh2GJuW9QbJ96XxMyegQnI4EqW1e76u3PBYm+bYYEnM=; b=Vb5cteSEMiMwWBq9NlF0J0iimFGUCgp8J/loUcCi1t6YgliN4SjjlDC5KQxWnwDWVLJoS7 mhpZJI3N4hj1Nt5k9a3qY22S2depVBlv7dx5xStHjcsyotIx477zfAhDSZn1sIM7L4wId1 bFcx0g1WYjEFzgKAFo+BLlpiN4sPp3I= Received: from mail-lj1-f198.google.com (mail-lj1-f198.google.com [209.85.208.198]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-119-fyfYbLjvPTK15_8lJ5fLag-1; Sat, 01 Jun 2024 11:37:06 -0400 X-MC-Unique: fyfYbLjvPTK15_8lJ5fLag-1 Received: by mail-lj1-f198.google.com with SMTP id 38308e7fff4ca-2eaa2db4968so3479161fa.3 for ; Sat, 01 Jun 2024 08:37:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1717256225; x=1717861025; h=content-transfer-encoding:in-reply-to:organization:autocrypt :content-language:from:references:cc:to:subject:user-agent :mime-version:date:message-id:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=jh2GJuW9QbJ96XxMyegQnI4EqW1e76u3PBYm+bYYEnM=; b=dVePRQz+3plnsm5HIsD0ij26eeHXc3Tlnn5jw5GaEiGcrgjbTunEyoD2/zG1DY5H6h GfNL2l/su70EBBWKmlIKelo9H3Y96nbSq0Uay8EcpIXFZ8X3rAQeXk3zxDXOWG8VU7dW hSVtJloAgNgUH4MAkgFwvI3zRQ/kM++twYpu7gY01I701FK/letilBVrJ+xg5lxgEFBN Z537umBGNqqKYifh51jV6Sgmga7s4VzUI0LlhkkNJk5lCCIeX0kRHZI/Y9KGg60etEz5 oF7S1YM8G0lISg7NbWRhVCBnDSpuRGN1CqhkVUEo2G2MLesCbsz/bDyFfqfBMqifweNi +vVA== X-Gm-Message-State: AOJu0Yz+YYoHR86NzwpAgf2XA30xQ4Kfm6l1BViiMzptKfjQIjEuXOEW IPV37424DkrM2xRfvX/JEOGBPirCtKovb5IwWPkuE4A4gCwYCL2q1iW/AfD8BoHY4/TfcXziGWm 6mOIdxImMqCpqD77e5pdD2SOaOlJ//KrwFsXAtYF4SfFFz50p X-Received: by 2002:a2e:994b:0:b0:2ea:7e5b:98db with SMTP id 38308e7fff4ca-2ea951f9657mr30714121fa.51.1717256224588; Sat, 01 Jun 2024 08:37:04 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHeK+tu4fARQX37OAk+v9I2CX1pQ/GTWXSyLPXuxro93D7mX97VjpHMCgKUjK7wJgyFpheApA== X-Received: by 2002:a2e:994b:0:b0:2ea:7e5b:98db with SMTP id 38308e7fff4ca-2ea951f9657mr30713901fa.51.1717256223896; Sat, 01 Jun 2024 08:37:03 -0700 (PDT) Received: from ?IPV6:2003:cb:c71f:b300:1d59:157a:ba27:f7e0? (p200300cbc71fb3001d59157aba27f7e0.dip0.t-ipconnect.de. [2003:cb:c71f:b300:1d59:157a:ba27:f7e0]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-35dd062eda6sm4278829f8f.86.2024.06.01.08.37.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 01 Jun 2024 08:37:03 -0700 (PDT) Message-ID: <45fc081c-ee8d-4774-a597-708d2924f812@redhat.com> Date: Sat, 1 Jun 2024 17:37:02 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: kswapd0: page allocation failure: order:0, mode:0x820(GFP_ATOMIC), nodemask=(null),cpuset=/,mems_allowed=0 (Kernel v6.5.9, 32bit ppc) To: Yu Zhao , Erhard Furtner Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org References: <20240508202111.768b7a4d@yea> <20240515224524.1c8befbe@yea> From: David Hildenbrand Autocrypt: addr=david@redhat.com; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl8Ox4kFCRKpKXgACgkQTd4Q 9wD/g1oHcA//a6Tj7SBNjFNM1iNhWUo1lxAja0lpSodSnB2g4FCZ4R61SBR4l/psBL73xktp rDHrx4aSpwkRP6Epu6mLvhlfjmkRG4OynJ5HG1gfv7RJJfnUdUM1z5kdS8JBrOhMJS2c/gPf wv1TGRq2XdMPnfY2o0CxRqpcLkx4vBODvJGl2mQyJF/gPepdDfcT8/PY9BJ7FL6Hrq1gnAo4 3Iv9qV0JiT2wmZciNyYQhmA1V6dyTRiQ4YAc31zOo2IM+xisPzeSHgw3ONY/XhYvfZ9r7W1l pNQdc2G+o4Di9NPFHQQhDw3YTRR1opJaTlRDzxYxzU6ZnUUBghxt9cwUWTpfCktkMZiPSDGd KgQBjnweV2jw9UOTxjb4LXqDjmSNkjDdQUOU69jGMUXgihvo4zhYcMX8F5gWdRtMR7DzW/YE BgVcyxNkMIXoY1aYj6npHYiNQesQlqjU6azjbH70/SXKM5tNRplgW8TNprMDuntdvV9wNkFs 9TyM02V5aWxFfI42+aivc4KEw69SE9KXwC7FSf5wXzuTot97N9Phj/Z3+jx443jo2NR34XgF 89cct7wJMjOF7bBefo0fPPZQuIma0Zym71cP61OP/i11ahNye6HGKfxGCOcs5wW9kRQEk8P9 M/k2wt3mt/fCQnuP/mWutNPt95w9wSsUyATLmtNrwccz63XOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCXw7HsgUJEqkpoQAKCRBN3hD3AP+DWrrpD/4qS3dyVRxDcDHIlmguXjC1Q5tZTwNB boaBTPHSy/Nksu0eY7x6HfQJ3xajVH32Ms6t1trDQmPx2iP5+7iDsb7OKAb5eOS8h+BEBDeq 3ecsQDv0fFJOA9ag5O3LLNk+3x3q7e0uo06XMaY7UHS341ozXUUI7wC7iKfoUTv03iO9El5f XpNMx/YrIMduZ2+nd9Di7o5+KIwlb2mAB9sTNHdMrXesX8eBL6T9b+MZJk+mZuPxKNVfEQMQ a5SxUEADIPQTPNvBewdeI80yeOCrN+Zzwy/Mrx9EPeu59Y5vSJOx/z6OUImD/GhX7Xvkt3kq Er5KTrJz3++B6SH9pum9PuoE/k+nntJkNMmQpR4MCBaV/J9gIOPGodDKnjdng+mXliF3Ptu6 3oxc2RCyGzTlxyMwuc2U5Q7KtUNTdDe8T0uE+9b8BLMVQDDfJjqY0VVqSUwImzTDLX9S4g/8 kC4HRcclk8hpyhY2jKGluZO0awwTIMgVEzmTyBphDg/Gx7dZU1Xf8HFuE+UZ5UDHDTnwgv7E th6RC9+WrhDNspZ9fJjKWRbveQgUFCpe1sa77LAw+XFrKmBHXp9ZVIe90RMe2tRL06BGiRZr jPrnvUsUUsjRoRNJjKKA/REq+sAnhkNPPZ/NNMjaZ5b8Tovi8C0tmxiCHaQYqj7G2rgnT0kt WNyWQQ== Organization: Red Hat In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 2265940010 X-Stat-Signature: o34miki36k7cumhoafeohtkfr7guu1zs X-Rspam-User: X-Rspamd-Server: rspam04 X-HE-Tag: 1717256228-929944 X-HE-Meta: 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 gFHnCOjU lkWZ5du1hhi0+XdXNguysuurhigUA5UuSQ1AHcxStxJ+phcq17Z5zWlYYDtJdPHJrZ4WIJM8fhV3iKcN01bROjgQkdIYHXDCNTZB0FC7wJRTvctrMdnTF/FTjQZXmytaWY4iSJCerjnB4c8ScyIwznekckhMTn43Ve62y9vuPDR7TllN2m+Csn0eBDxjJnVDSzarPJ3bXxc43L84j2BgUf80INLYxHUM0FJ9sF7ul/4PCUW2sswFji41zavxqJCFE5PtFuTFpuvVG22ONe9di+fUEXjCKckDAMmSAc9qtHzD04xlX8LvIUxNUzbeVYqv/KVtmpowxuYTkaqYDy4DYLZY8dpqtzHeqZf7vRJUFc10M0MUePqFkjp3wUwmKeee878CNcpM7gW4b9Sk4rHglA2eDgyvlbTO7ENI5OYRJAl1ytNRu3HxOgE4Wu2jrFROtxOGqVr+1VEUQktWm8A60yLSgwfk/ndixzSPL/kFJ3vSy5qkcdEW9aq3AEZsmOlpS4vuR6m7M9slSuf9vkKPTdsivQSd68fLdSDys/gGAxMzkzkipX4HPlItXV0NK6vduNiMgwnevSnvbJPlmZVqIThnX14z51gBNDrBFaigyVfsTj+R+rIDtbIYxZvadzeVglyl3roKEqF4NmhVjweVsXvTNKg== 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: List-Subscribe: List-Unsubscribe: On 01.06.24 08:01, Yu Zhao wrote: > On Wed, May 15, 2024 at 4:06 PM Yu Zhao wrote: >> >> On Wed, May 15, 2024 at 2:45 PM Erhard Furtner wrote: >>> >>> On Wed, 8 May 2024 20:21:11 +0200 >>> Erhard Furtner wrote: >>> >>>> Greetings! >>>> >>>> Got that on my dual CPU PowerMac G4 DP shortly after boot. This does not happen every time at bootup though: >>>> >>>> [...] >>>> kswapd0: page allocation failure: order:0, mode:0x820(GFP_ATOMIC), nodemask=(null),cpuset=/,mems_allowed=0 >>>> CPU: 1 PID: 40 Comm: kswapd0 Not tainted 6.8.9-gentoo-PMacG4 #1 >>>> Hardware name: PowerMac3,6 7455 0x80010303 PowerMac >>> >>> Very similar page allocation failure on the same machine on kernel 6.9.0 too. Seems it can easily be provoked by running a memory stressor, e.g. "stress-ng --vm 2 --vm-bytes 1930M --verify -v": >>> >>> [...] >>> kswapd0: page allocation failure: order:0, mode:0xcc0(GFP_KERNEL), nodemask=(null),cpuset=/,mems_allowed=0 >>> CPU: 0 PID: 41 Comm: kswapd0 Not tainted 6.9.0-gentoo-PMacG4 #1 >>> Hardware name: PowerMac3,6 7455 0x80010303 PowerMac >>> Call Trace: >>> [c1c65940] [c07926d4] dump_stack_lvl+0x80/0xac (unreliable) >>> [c1c65960] [c01b6234] warn_alloc+0x100/0x178 >>> [c1c659c0] [c01b661c] __alloc_pages+0x370/0x8d0 >>> [c1c65a80] [c01c4854] __read_swap_cache_async+0xc0/0x1cc >>> [c1c65ad0] [c01cb580] zswap_writeback_entry+0x50/0x154 >>> [c1c65be0] [c01cb6f4] shrink_memcg_cb+0x70/0xec >>> [c1c65c10] [c019518c] __list_lru_walk_one+0xa0/0x154 >>> [c1c65c70] [c01952a4] list_lru_walk_one+0x64/0x7c >>> [c1c65ca0] [c01cad00] zswap_shrinker_scan+0xac/0xc4 >>> [c1c65cd0] [c018052c] do_shrink_slab+0x18c/0x304 >>> [c1c65d20] [c0180a40] shrink_slab+0x174/0x260 >>> [c1c65da0] [c017cb0c] shrink_one+0xbc/0x134 >>> [c1c65dd0] [c017e3e4] shrink_node+0x238/0x84c >>> [c1c65e50] [c017ed38] balance_pgdat+0x340/0x650 >>> [c1c65f50] [c017f270] kswapd+0x228/0x25c >>> [c1c65fc0] [c006bbac] kthread+0xe4/0xe8 >>> [c1c65ff0] [c0015304] start_kernel_thread+0x10/0x14 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 15, objs: 225, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 15, objs: 225, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 15, objs: 225, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 15, objs: 225, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 15, objs: 225, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: kmalloc-rnd-15-2k, object size: 2048, buffer size: 6144, default order: 3, min order: 1 >>> kmalloc-rnd-15-2k debugging increased min order, use slab_debug=O to disable. >>> node 0: slabs: 33, objs: 165, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 15, objs: 225, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: kmalloc-rnd-15-2k, object size: 2048, buffer size: 6144, default order: 3, min order: 1 >>> kmalloc-rnd-15-2k debugging increased min order, use slab_debug=O to disable. >>> node 0: slabs: 33, objs: 165, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 15, objs: 225, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: kmalloc-rnd-15-2k, object size: 2048, buffer size: 6144, default order: 3, min order: 1 >>> kmalloc-rnd-15-2k debugging increased min order, use slab_debug=O to disable. >>> node 0: slabs: 33, objs: 165, free: 0 >>> Mem-Info: >>> active_anon:340071 inactive_anon:139179 isolated_anon:0 >>> active_file:8297 inactive_file:2506 isolated_file:0 >>> unevictable:4 dirty:1 writeback:18 >>> slab_reclaimable:1377 slab_unreclaimable:7426 >>> mapped:6804 shmem:112 pagetables:946 >>> sec_pagetables:0 bounce:0 >>> kernel_misc_reclaimable:0 >>> free:1141 free_pcp:7 free_cma:0 >>> Node 0 active_anon:1360284kB inactive_anon:556716kB active_file:33188kB inactive_file:10024kB unevictable:16kB isolated(anon):0kB isolated(file):0kB mapped:27216kB dirty:4kB writeback:72kB shmem:448kB writeback_tmp:0kB kernel_stack:1560kB pagetables:3784kB sec_pagetables:0kB all_unreclaimable? no >>> DMA free:56kB boost:7756kB min:11208kB low:12068kB high:12928kB reserved_highatomic:0KB active_anon:635128kB inactive_anon:58260kB active_file:268kB inactive_file:3000kB unevictable:0kB writepending:324kB present:786432kB managed:746644kB mlocked:0kB bounce:0kB free_pcp:28kB local_pcp:28kB free_cma:0kB >>> lowmem_reserve[]: 0 0 1280 1280 >>> DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB >>> 63943 total pagecache pages >>> 53024 pages in swap cache >>> Free swap = 8057248kB >>> Total swap = 8388604kB >>> 524288 pages RAM >>> 327680 pages HighMem/MovableOnly >>> 9947 pages reserved >>> warn_alloc: 396 callbacks suppressed >>> kswapd0: page allocation failure: order:0, mode:0xcc0(GFP_KERNEL), nodemask=(null),cpuset=/,mems_allowed=0 >>> CPU: 1 PID: 41 Comm: kswapd0 Not tainted 6.9.0-gentoo-PMacG4 #1 >>> Hardware name: PowerMac3,6 7455 0x80010303 PowerMac >>> Call Trace: >>> [c1c65940] [c07926d4] dump_stack_lvl+0x80/0xac (unreliable) >>> [c1c65960] [c01b6234] warn_alloc+0x100/0x178 >>> [c1c659c0] [c01b661c] __alloc_pages+0x370/0x8d0 >>> [c1c65a80] [c01c4854] __read_swap_cache_async+0xc0/0x1cc >>> [c1c65ad0] [c01cb580] zswap_writeback_entry+0x50/0x154 >>> [c1c65be0] [c01cb6f4] shrink_memcg_cb+0x70/0xec >>> [c1c65c10] [c019518c] __list_lru_walk_one+0xa0/0x154 >>> [c1c65c70] [c01952a4] list_lru_walk_one+0x64/0x7c >>> [c1c65ca0] [c01cad00] zswap_shrinker_scan+0xac/0xc4 >>> [c1c65cd0] [c018052c] do_shrink_slab+0x18c/0x304 >>> [c1c65d20] [c0180a40] shrink_slab+0x174/0x260 >>> [c1c65da0] [c017cb0c] shrink_one+0xbc/0x134 >>> [c1c65dd0] [c017e3e4] shrink_node+0x238/0x84c >>> [c1c65e50] [c017ed38] balance_pgdat+0x340/0x650 >>> [c1c65f50] [c017f270] kswapd+0x228/0x25c >>> slab_out_of_memory: 53 callbacks suppressed >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 18, objs: 270, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 18, objs: 270, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 18, objs: 270, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 18, objs: 270, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 18, objs: 270, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: kmalloc-rnd-15-2k, object size: 2048, buffer size: 6144, default order: 3, min order: 1 >>> kmalloc-rnd-15-2k debugging increased min order, use slab_debug=O to disable. >>> node 0: slabs: 33, objs: 165, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 18, objs: 270, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: kmalloc-rnd-15-2k, object size: 2048, buffer size: 6144, default order: 3, min order: 1 >>> kmalloc-rnd-15-2k debugging increased min order, use slab_debug=O to disable. >>> node 0: slabs: 33, objs: 165, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 18, objs: 270, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: kmalloc-rnd-15-2k, object size: 2048, buffer size: 6144, default order: 3, min order: 1 >>> kmalloc-rnd-15-2k debugging increased min order, use slab_debug=O to disable. >>> node 0: slabs: 33, objs: 165, free: 0 >>> [c1c65fc0] [c006bbac] kthread+0xe4/0xe8 >>> [c1c65ff0] [c0015304] start_kernel_thread+0x10/0x14 >>> Mem-Info: >>> active_anon:351976 inactive_anon:123514 isolated_anon:0 >>> active_file:4648 inactive_file:2081 isolated_file:0 >>> unevictable:4 dirty:1 writeback:39 >>> slab_reclaimable:918 slab_unreclaimable:7222 >>> mapped:5359 shmem:21 pagetables:940 >>> sec_pagetables:0 bounce:0 >>> kernel_misc_reclaimable:0 >>> free:2563 free_pcp:142 free_cma:0 >>> Node 0 active_anon:1407904kB inactive_anon:494056kB active_file:18592kB inactive_file:8324kB unevictable:16kB isolated(anon):0kB isolated(file):0kB mapped:21436kB dirty:4kB writeback:156kB shmem:84kB writeback_tmp:0kB kernel_stack:1552kB pagetables:3760kB sec_pagetables:0kB all_unreclaimable? no >>> DMA free:0kB boost:7756kB min:11208kB low:12068kB high:12928kB reserved_highatomic:0KB active_anon:199336kB inactive_anon:491432kB active_file:4612kB inactive_file:5980kB unevictable:0kB writepending:660kB present:786432kB managed:746644kB mlocked:0kB bounce:0kB free_pcp:568kB local_pcp:20kB free_cma:0kB >>> lowmem_reserve[]: 0 0 1280 1280 >>> DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB >>> 45961 total pagecache pages >>> 39207 pages in swap cache >>> Free swap = 8093096kB >>> Total swap = 8388604kB >>> 524288 pages RAM >>> 327680 pages HighMem/MovableOnly >>> 9947 pages reserved >>> warn_alloc: 343 callbacks suppressed >>> kswapd0: page allocation failure: order:0, mode:0xcc0(GFP_KERNEL), nodemask=(null),cpuset=/,mems_allowed=0 >>> CPU: 0 PID: 41 Comm: kswapd0 Not tainted 6.9.0-gentoo-PMacG4 #1 >>> Hardware name: PowerMac3,6 7455 0x80010303 PowerMac >>> Call Trace: >>> [c1c65940] [c07926d4] dump_stack_lvl+0x80/0xac (unreliable) >>> [c1c65960] [c01b6234] warn_alloc+0x100/0x178 >>> [c1c659c0] [c01b661c] __alloc_pages+0x370/0x8d0 >>> [c1c65a80] [c01c4854] __read_swap_cache_async+0xc0/0x1cc >>> [c1c65ad0] [c01cb580] zswap_writeback_entry+0x50/0x154 >>> [c1c65be0] [c01cb6f4] shrink_memcg_cb+0x70/0xec >>> [c1c65c10] [c019518c] __list_lru_walk_one+0xa0/0x154 >>> slab_out_of_memory: 59 callbacks suppressed >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 18, objs: 270, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 18, objs: 270, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 18, objs: 270, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 18, objs: 270, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 18, objs: 270, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: kmalloc-rnd-15-2k, object size: 2048, buffer size: 6144, default order: 3, min order: 1 >>> kmalloc-rnd-15-2k debugging increased min order, use slab_debug=O to disable. >>> node 0: slabs: 33, objs: 165, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 18, objs: 270, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: kmalloc-rnd-15-2k, object size: 2048, buffer size: 6144, default order: 3, min order: 1 >>> kmalloc-rnd-15-2k debugging increased min order, use slab_debug=O to disable. >>> node 0: slabs: 33, objs: 165, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: skbuff_small_head, object size: 480, buffer size: 544, default order: 1, min order: 0 >>> node 0: slabs: 18, objs: 270, free: 0 >>> SLUB: Unable to allocate memory on node -1, gfp=0x820(GFP_ATOMIC) >>> cache: kmalloc-rnd-15-2k, object size: 2048, buffer size: 6144, default order: 3, min order: 1 >>> kmalloc-rnd-15-2k debugging increased min order, use slab_debug=O to disable. >>> node 0: slabs: 33, objs: 165, free: 0 >>> [c1c65c70] [c01952a4] list_lru_walk_one+0x64/0x7c >>> [c1c65ca0] [c01cad00] zswap_shrinker_scan+0xac/0xc4 >>> [c1c65cd0] [c018052c] do_shrink_slab+0x18c/0x304 >>> [c1c65d20] [c0180a40] shrink_slab+0x174/0x260 >>> [c1c65da0] [c017cb0c] shrink_one+0xbc/0x134 >>> [c1c65dd0] [c017e3e4] shrink_node+0x238/0x84c >>> [c1c65e50] [c017ed38] balance_pgdat+0x340/0x650 >>> [c1c65f50] [c017f270] kswapd+0x228/0x25c >>> [c1c65fc0] [c006bbac] kthread+0xe4/0xe8 >>> [c1c65ff0] [c0015304] start_kernel_thread+0x10/0x14 >>> Mem-Info: >>> active_anon:235002 inactive_anon:240975 isolated_anon:0 >>> active_file:4356 inactive_file:2551 isolated_file:0 >>> unevictable:4 dirty:7 writeback:19 >>> slab_reclaimable:1008 slab_unreclaimable:7218 >>> mapped:5601 shmem:21 pagetables:939 >>> sec_pagetables:0 bounce:0 >>> kernel_misc_reclaimable:0 >>> free:1340 free_pcp:23 free_cma:0 >>> Node 0 active_anon:940008kB inactive_anon:963900kB active_file:17424kB inactive_file:10204kB unevictable:16kB isolated(anon):0kB isolated(file):0kB mapped:22404kB dirty:28kB writeback:76kB shmem:84kB writeback_tmp:0kB kernel_stack:1552kB pagetables:3756kB sec_pagetables:0kB all_unreclaimable? no >>> DMA free:0kB boost:7756kB min:11208kB low:12068kB high:12928kB reserved_highatomic:0KB active_anon:644060kB inactive_anon:36332kB active_file:5276kB inactive_file:5516kB unevictable:0kB writepending:348kB present:786432kB managed:746644kB mlocked:0kB bounce:0kB free_pcp:92kB local_pcp:92kB free_cma:0kB >>> lowmem_reserve[]: 0 0 1280 1280 >>> DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB >>> 116345 total pagecache pages >>> 109413 pages in swap cache >>> Free swap = 7819300kB >>> Total swap = 8388604kB >>> 524288 pages RAM >>> 327680 pages HighMem/MovableOnly >>> 9947 pages reserved >>> >>> >>> I switched from zstd to lzo as zswap default compressor so zstd does not show up on the dmesg. But the rest looks pretty similar. >>> >>> Full dmesg and kernel .config attached. >>> >>> Regards, >>> Erhard >> >> Hi Erhard, >> >> Thanks for the reports. I'll take a look at them and get back to you >> in a few days. > > Hi Erhard, > > The OOM kills on both kernel versions seem to be reasonable to me. > > Your system has 2GB memory and it uses zswap with zsmalloc (which is > good since it can allocate from the highmem zone) and zstd/lzo (which > doesn't matter much). Somehow -- I couldn't figure out why -- it > splits the 2GB into a 0.25GB DMA zone and a 1.75GB highmem zone: > > [ 0.000000] Zone ranges: > [ 0.000000] DMA [mem 0x0000000000000000-0x000000002fffffff] > [ 0.000000] Normal empty > [ 0.000000] HighMem [mem 0x0000000030000000-0x000000007fffffff] That's really odd. But we are messing with "PowerMac3,6", so I don't really know what's right or wrong ... -- Cheers, David / dhildenb