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 721EBC7115B for ; Fri, 20 Jun 2025 02:14:26 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 138096B008A; Thu, 19 Jun 2025 22:14:26 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 1100C6B008C; Thu, 19 Jun 2025 22:14:26 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 026176B0092; Thu, 19 Jun 2025 22:14:25 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id E66926B008A for ; Thu, 19 Jun 2025 22:14:25 -0400 (EDT) Received: from smtpin09.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 8319612150B for ; Fri, 20 Jun 2025 02:14:25 +0000 (UTC) X-FDA: 83574159690.09.50BE6C5 Received: from mail-ej1-f43.google.com (mail-ej1-f43.google.com [209.85.218.43]) by imf28.hostedemail.com (Postfix) with ESMTP id 7EE6FC0004 for ; Fri, 20 Jun 2025 02:14:23 +0000 (UTC) Authentication-Results: imf28.hostedemail.com; dkim=pass header.d=gmail.com header.s=20230601 header.b=eJkFhwSA; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (imf28.hostedemail.com: domain of richard.weiyang@gmail.com designates 209.85.218.43 as permitted sender) smtp.mailfrom=richard.weiyang@gmail.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1750385663; a=rsa-sha256; cv=none; b=y1vf5Xp6BlCxFREcYqIC+vL7GmrZukLVSu2lJLt/Ad2mO71H/bMQ1jfLIPmoXTuDZ8KSDw VLc3SYh8oFc5jJXSrlIBgFb+XPOUtubXxBWgBgiJQz0brzBzg0Ea5jPQoXmF2VUh28TZRm hT80YZb543irven5wpzkoimpDMCuXvo= ARC-Authentication-Results: i=1; imf28.hostedemail.com; dkim=pass header.d=gmail.com header.s=20230601 header.b=eJkFhwSA; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (imf28.hostedemail.com: domain of richard.weiyang@gmail.com designates 209.85.218.43 as permitted sender) smtp.mailfrom=richard.weiyang@gmail.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1750385663; h=from:from:sender:reply-to: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: in-reply-to:in-reply-to:references:references:dkim-signature; bh=lEIhfxXJ4mKmJo/0kctFLR+8uENtUACzQhaNn55bks4=; b=V3tO4EsJylziaYMGOcaWGoVReVSj7IYaERly3thSE5V3+bT+3BCpuRuKAwwgjveV1PniGa t3xSemdv3M1/lhbIC1NwEl2jEd3Vv4q8sLpuTp6Zvg/uANB3ilAAgOT4SZQM4/WUG4V2WR Fcz9I31vQOEmitctjMC9lVXKVY0wATY= Received: by mail-ej1-f43.google.com with SMTP id a640c23a62f3a-ade30256175so231748766b.1 for ; Thu, 19 Jun 2025 19:14:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1750385662; x=1750990462; darn=kvack.org; h=user-agent:in-reply-to:content-disposition:mime-version:references :reply-to:message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=lEIhfxXJ4mKmJo/0kctFLR+8uENtUACzQhaNn55bks4=; b=eJkFhwSAncFIijgSU8msZ70eoJJGLApz01GEJmNsC1ZdCWVRBBLtWphP5q05SSbQqP dUyeiBjENW6XviaGsa48SGSBxhWEcJQjmy1Exu2h6ialomgPQOl9wl32ImhCNnD7eCzr rADx9apGGsrV63xIZ852CqVVe+ZGlAiNC7opc+UhJ555wXCEWD+F91WvTbmOVJvK01uT 1X0W7E4jOLjxjjMCpe+uaKC5Y1Ln3a9ssToaEK37fJw+ibIY3sEf3RMQe7QEYJYiFaxp UinCYRlLmGCFVcCPJIkGgWubm8EH4MQ1ZhBolaaajP1FTOPdllFl3YjUXydkIAy8iPv3 10Pg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1750385662; x=1750990462; h=user-agent:in-reply-to:content-disposition:mime-version:references :reply-to:message-id:subject:cc:to:from:date:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=lEIhfxXJ4mKmJo/0kctFLR+8uENtUACzQhaNn55bks4=; b=qRRb+/QoKcWxucfGFsaq9PCQ0G5QCoM58XnlAJQDoK0ZDE+GZIpTsTW1psPbOpJCZG q3FEjxTqGglOlcqtaNBwPRWQpptf2fjZ05hVu1yxpPu1jhP9PDqPTowQuOUCVmzJI68m Exw65iWVctf8EzonTbezCiM1enjBGjZNMysqS9SwQQehKleu6xvuqnIW2OTtxV4URLQo 4yDZwCf0K/Vf3o0DaifgJSXsmFQWqZRiIdvkTqakh0ZQFp105gAgagTb8Vlr0MxOG9kX 84LKe+2DCpY4aGBLPSkOtkUJ07FqaSPoMvY6c57tfmGGQOYSIh1X32HSKN7R/bFwzNGv 59Ag== X-Forwarded-Encrypted: i=1; AJvYcCWNs4ILMOw44/JRVTWwW8HytGKSKWrjlsuGTTlR5VwH0FC7qU79DkHJA210GIR9ga/F03YGvBtgaw==@kvack.org X-Gm-Message-State: AOJu0Yy3Z5+SEQJ8KNhVLKvNwU4Mv/InnMwwWMBvpwTK9D+Z1qZc8H8J GxflqT3T7pMj3tcPgUM/mzft2w8RaOjq9SwGGs95a8Erhv9CWE1g886R X-Gm-Gg: ASbGnctvDGMWnXcj15bXg2WB+AUekJr7IX+eQZOtzeZfR8zyRHaTT0fVQ/PX2UQAD8M TAshy07tNuQAoQQzhXU8+hJ/KR9wCyG9CrI1BttgW07TCDNBpm2/LOecRH5zi27l04OVw8kYeaE P8+W2vX1Xij3qj1l8J+nAopdmIQU9b4/NXE/uOrcC1r9JscUqGMgK97F8OBu+htJy/l8XSyUDeY 5w1v7E+uu+mxZIwMk/sQMtcw4A3lYZJyMatKi1g+TR5lbSKwyBxWPK1AqhVo3nmFSE7HwTiGrha dSNVRIuovZmxxzy2+013+bM1dREdVmNYlihmSknwk/SX8XBUrP24gqlrqVvVcKSjMmBH406M X-Google-Smtp-Source: AGHT+IEajYSmfm6+sTAO05W2RF67E4/SY7yYteVk+jnAzCNEgdFMvxNCdSZPTnS8jXIdNlXGMDA1HQ== X-Received: by 2002:a17:907:ea7:b0:adf:d157:4331 with SMTP id a640c23a62f3a-ae057bc80e1mr96216866b.44.1750385661683; Thu, 19 Jun 2025 19:14:21 -0700 (PDT) Received: from localhost ([185.92.221.13]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-60a18504ef4sm684042a12.15.2025.06.19.19.14.20 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Thu, 19 Jun 2025 19:14:21 -0700 (PDT) Date: Fri, 20 Jun 2025 02:14:20 +0000 From: Wei Yang To: Andrew Morton Cc: kernel test robot , Wei Yang , oe-lkp@lists.linux.dev, lkp@intel.com, "Liam R. Howlett" , Matthew Wilcox , maple-tree@lists.infradead.org, linux-mm@kvack.org Subject: Re: [linux-next:master] [maple_tree] 540335e987: BUG:kernel_NULL_pointer_dereference,address Message-ID: <20250620021420.7rgehvgrveyagqdd@master> Reply-To: Wei Yang References: <202506191556.6bfc7b93-lkp@intel.com> <20250619154446.e9543f52bbc47e4bbd2cec29@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250619154446.e9543f52bbc47e4bbd2cec29@linux-foundation.org> User-Agent: NeoMutt/20170113 (1.7.2) X-Stat-Signature: ox5qrpfd3bhd5jee8i3n1thbmdti5k1z X-Rspamd-Queue-Id: 7EE6FC0004 X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1750385663-939440 X-HE-Meta: U2FsdGVkX18SZWXmmOb59yjaSrzkHxpEMOGTHR6QZ+qrU0nU4RrpNRGVMcWVJyNJLvmKvHsYQTFw02sEh9s9XBbbVvvrEhIhP3c0YhuISGR1AZKlHNN4UWcvAlStrAav/yaaIi8zSn6HH57/rD4BWCJYqSn4Xb/xhz37ea/Mo+Y1g78MyQzJv8VFOdSNwRMxaDx4ep7qRms4G9TCsXY/SkrxOI1xhHo+UmuG7XlIL0jjMyDMN0oJYHDh16dJBKllCCiieo3B9ovDyFr8POfT05jj6A8k/DQ8c5CCfoPAhqg6Cdd0DnEowuyIh61mqjqjOfcIhbIKX5jDJNp4uHA+GcQVyjkfUX/n+PvOywaoM2/IbVdfAHCXcqvXt8FUHQRptkMWDhplaP5IYRF78qGAw9PjSo27PS2klxBU2vblLqJiVAYa3b3D5DEGK+5uwnLW9ntRrA//31rG2gbLFnk2eh8K99N/aji1bI9YmZYRm2cfOxzaNQT3k6BAwMZicU67Pna2+R1lYzfnLtshtnGdT+Cb/bruFSMGPzba3ZAnyZLkGehrG8n8NmfAJlCQ0uZELR0jqhvrncGs8ZF/1I6sHkNlL6iI72w3YxZTcFiRz/0lcgq5hwvEiSmvfdwnWVlTL3bKCZiZShZqQ5C23CA9ZYbsa8KwB2ojnhT0Rmwm45/L47u8ef4uPt83qOzcyJO68LmwCQ47J8TQ2cf+0VSCP9UlNxJuwFOiABBDECbAll0u3nSiq4dvZNDhAwP2byfzXjRK6yNXiMwpyujk4SMfluaYCIagKVtsFyWM1uthFMRk1zx8qrpB97N0SOW8NHK59zPonQ9qETtBPH7H0KUzqtxLzDZpxdgazI+4TsPZI8AQyT+iHktk6WR4V6NrANbbrqdYWirPMM1E0/Zte2VfwXjgdpz7hcZ/4THDOfMClLflHObi3AUn1b50R/srTm+IKXXQ59+OBGUt1HKKtV9 ppftVhux 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 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 Thu, Jun 19, 2025 at 03:44:46PM -0700, Andrew Morton wrote: >On Thu, 19 Jun 2025 15:32:12 +0800 kernel test robot wrote: > >> kernel test robot noticed "BUG:kernel_NULL_pointer_dereference,address" on: >> >> commit: 540335e9878005bf238ab4e1f91e8df0e3091a03 ("maple_tree: restart walk on correct status") >> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master >> >> [test failed on linux-next/master 6e5ab6fee68df8c40b338baeae6e269fa25a7e25] >> >> ... >> >> [ 85.008687][ T5293] RIP: 0010:mtree_range_walk (lib/maple_tree.c:2773) > >Seems this is > > if (pivots[0] >= mas->index) { > >It seems odd that mtree_range_walk() doesn't (and didn't) check for >ma_pivots() returning NULL. > >Oh well, thanks, the report is solid - I'll drop the series. Sorry for the trouble. It is better to drop it. -- Wei Yang Help you, Help me