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 3E7A6C3DA49 for ; Tue, 30 Jul 2024 14:17:48 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id C05576B0096; Tue, 30 Jul 2024 10:17:47 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id BB61B6B0098; Tue, 30 Jul 2024 10:17:47 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AA3BA6B0099; Tue, 30 Jul 2024 10:17:47 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id 8C7CC6B0096 for ; Tue, 30 Jul 2024 10:17:47 -0400 (EDT) Received: from smtpin20.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay10.hostedemail.com (Postfix) with ESMTP id 3314AC0330 for ; 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imf30.hostedemail.com; dkim=none; spf=pass (imf30.hostedemail.com: domain of cmarinas@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=cmarinas@kernel.org; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=arm.com (policy=none) ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1722349061; a=rsa-sha256; cv=none; b=xIG3Sa6Jsw4ARaK49pLR9Uw2vwso0f216Qd06pwgYeBOQukeKiNYjbk6Yj0IUM/FLbSyZw TKbre+MyQIAqKCPRmOHPmbgNuFYl57EVBvbNfzR/s4c57FILeVzOBwBqwvmGfYoNFAfN5T 0YiRoT6j5fDvl3T69pkrFyZhdWMOeXQ= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id A850761EFC; Tue, 30 Jul 2024 14:17:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 900F5C32782; Tue, 30 Jul 2024 14:17:42 +0000 (UTC) Date: Tue, 30 Jul 2024 15:17:40 +0100 From: Catalin Marinas To: Pavel Tikhomirov Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Wei Yongjun , Chen Jun , Aleksandr Mikhalitsyn , kernel@openvz.org Subject: Re: [PATCH 2/2] kmemleak-test: add percpu leak Message-ID: References: <20240725041223.872472-1-ptikhomirov@virtuozzo.com> <20240725041223.872472-3-ptikhomirov@virtuozzo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240725041223.872472-3-ptikhomirov@virtuozzo.com> X-Rspam-User: X-Stat-Signature: bpkuib3xmt3mccfwukgia67a756jib6x X-Rspamd-Queue-Id: 94E3080003 X-Rspamd-Server: rspam11 X-HE-Tag: 1722349065-166840 X-HE-Meta: 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 jQB+o+u9 tXUcxeJvTNB6NdK0grZ8x0dqbJozHma37VbKSJV3ln8PD4aWv8y2zc6PuKRNZVhXnyN58s3IArFzi+VczhD9XoVdLR6UShMESPbg0SFpjmoTxWUoHlX0WOHHpiNaeKJIGOjyG+PvhCEPQLFWeHJG+CkknA5zyrJq5/PpL0zQFcxA12Xvw3KMeye9Mm6jd+Zl/Alv9VOIhU8SNCc3drAhmANS+E1zZ2xzF7R3MRG6C6Xd5H8qiluaXDjoM0n7oqum2yiQ1NDR1R5vzihCqgcX59nxxrDFDwBA1hiUFjH33vE2+pvC2fPW1BTLgQanIOW9L86WZxWCTyu/3SWwYsCjTlr09g4SYK20Th/060Iwelkk9vFnP5qRtgXHsZjprOGZTiSEr/5sqi08eQD34PIxIhBIuUvQgLvPa4JOTYVU1o4P9rctfTnKgptj06yYgBuUIgAX3DxeZY/HH8dNVR4kG7dZa4Zgse49iLeOEpbnUNs+58cQ= 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, Jul 25, 2024 at 12:12:16PM +0800, Pavel Tikhomirov wrote: > Add a per-CPU memory leak, which will be reported like: > > unreferenced object 0x3efa840195f8 (size 64): > comm "modprobe", pid 4667, jiffies 4294688677 > hex dump (first 32 bytes on cpu 0): > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace (crc 0): > [] pcpu_alloc+0x3df/0x840 > [] kmemleak_test_init+0x2c9/0x2f0 [kmemleak_test] > [] do_one_initcall+0x44/0x300 > [] do_init_module+0x60/0x240 > [] init_module_from_file+0x86/0xc0 > [] idempotent_init_module+0x109/0x2a0 > [] __x64_sys_finit_module+0x5a/0xb0 > [] do_syscall_64+0x7a/0x160 > [] entry_SYSCALL_64_after_hwframe+0x76/0x7e > > CC: Wei Yongjun > CC: Chen Jun > Signed-off-by: Pavel Tikhomirov Acked-by: Catalin Marinas