From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx10.didiglobal.com (mx10.didiglobal.com [111.202.70.125]) by smtp.subspace.kernel.org (Postfix) with SMTP id 077FAC2DB for ; Thu, 1 Feb 2024 01:29:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=111.202.70.125 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706750989; cv=none; b=H5COzuKZWVB0SEO3Is2i1tlgn3Zs+SI82/xGsP3Mgw/XdMSzYwo05VRZ4373qAdBPZxLNI3jJTd6+MQ+yYAe7Mbgn5eMRixCsylXbO1VeuLvmYzISvwCv8kMmGNiV25tpwD55uoIcz4rsPzdd91s23OE6kq4ODadvbK9QdoxMIQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706750989; c=relaxed/simple; bh=nZD3LuJaWSFHpqmqiJ25akrbol3IuhUCS5Xy5nd0ISY=; h=Message-ID:Date:MIME-Version:Subject:To:CC:From:In-Reply-To: Content-Type; b=aPbBSXPJFZJ/hkNUns/zIf8x1/UmZ2V8/fIQy9CFDc6mLPg3LJ2w7ZVTtV/EYdehfOQdziWk9y5/R6rbvtS3OeuRD8o602s5q8+HUIw8gfKnv2xD9lx3Yne8w9cTrA6wuHjjcNA7fU++u3H4DoetQn/IfeI4ByJB5kTIkaXvzEA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=didichuxing.com; spf=pass smtp.mailfrom=didiglobal.com; arc=none smtp.client-ip=111.202.70.125 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=didichuxing.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=didiglobal.com Received: from mail.didiglobal.com (unknown [10.79.64.13]) by mx10.didiglobal.com (MailData Gateway V2.8.8) with ESMTPS id 98CBF18660130F; Thu, 1 Feb 2024 09:29:36 +0800 (CST) Received: from [172.24.140.10] (10.79.71.101) by ZJY01-ACTMBX-03.didichuxing.com (10.79.64.13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Thu, 1 Feb 2024 09:29:36 +0800 Message-ID: Date: Thu, 1 Feb 2024 09:29:30 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [linus:master] [sched/eevdf] 2227a957e1: BUG:kernel_NULL_pointer_dereference,address To: Oliver Sang CC: , , , Peter Zijlstra , , , Tiwei Bie , Abel Wu Content-Language: en-US X-MD-Sfrom: wanghonglei@didiglobal.com X-MD-SrcIP: 10.79.64.13 From: Honglei Wang In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: ZJY02-PUBMBX-01.didichuxing.com (10.79.65.31) To ZJY01-ACTMBX-03.didichuxing.com (10.79.64.13) On 2024/1/30 22:09, Oliver Sang wrote: > hi, Abel, > > On Tue, Jan 30, 2024 at 06:13:32PM +0800, Abel Wu wrote: >> On 1/30/24 3:24 PM, kernel test robot Wrote: >>> >>> >>> Hello, >>> >>> (besides a previous performance report), >>> kernel test robot noticed "BUG:kernel_NULL_pointer_dereference,address" on: >>> >>> commit: 2227a957e1d5b1941be4e4207879ec74f4bb37f8 ("sched/eevdf: Sort the rbtree by virtual deadline") >>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master >>> >>> [test failed on linus/master 3a5879d495b226d0404098e3564462d5f1daa33b] >>> [test failed on linux-next/master 01af33cc9894b4489fb68fa35c40e9fe85df63dc] >>> >>> in testcase: trinity >>> version: trinity-i386-abe9de86-1_20230429 Hi Oliver, I'm a bit curious, did the problem happen on i386 only? Did you hit it on x86_64 or other platform with the same trinity testcases? Thanks, Honglei