From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f173.google.com (mail-pd0-f173.google.com [209.85.192.173]) by kanga.kvack.org (Postfix) with ESMTP id 277E96B0035 for ; Thu, 24 Apr 2014 21:47:51 -0400 (EDT) Received: by mail-pd0-f173.google.com with SMTP id p10so2208066pdj.4 for ; Thu, 24 Apr 2014 18:47:50 -0700 (PDT) Received: from mailout2.samsung.com (mailout2.samsung.com. [203.254.224.25]) by mx.google.com with ESMTPS id tv5si3733970pbc.29.2014.04.24.18.47.49 for (version=TLSv1 cipher=RC4-MD5 bits=128/128); Thu, 24 Apr 2014 18:47:50 -0700 (PDT) Received: from epcpsbgr3.samsung.com (u143.gpu120.samsung.co.kr [203.254.230.143]) by mailout2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0N4K00GYJCZNN650@mailout2.samsung.com> for linux-mm@kvack.org; Fri, 25 Apr 2014 10:47:47 +0900 (KST) Message-id: <1398390340.4283.36.camel@kjgkr> Subject: [BUG] kmemleak on __radix_tree_preload From: Jaegeuk Kim Reply-to: jaegeuk.kim@samsung.com Date: Fri, 25 Apr 2014 10:45:40 +0900 Content-type: text/plain; charset=UTF-8 Content-transfer-encoding: 7bit MIME-version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: "Linux Kernel, Mailing List" Cc: "linux-mm@kvack.org" Hi mm folks, When I was testing recent linus tree, I got several kmemleaks as below. Could any of you guys guide how to fix this? Thanks, 0. Test - fsstress on f2fs 1. Kernel version commit 4d0fa8a0f01272d4de33704f20303dcecdb55df1 Merge: 39bfe90 b5539fa Author: Linus Torvalds Date: Tue Apr 22 09:28:02 2014 -0700 Merge tag 'gpio-v3.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull gpio fixes from Linus Walleij: 2. Bug This is one of the results, but all the results indicate __radix_tree_preload. unreferenced object 0xffff88002ae2a238 (size 576): comm "fsstress", pid 25019, jiffies 4295651360 (age 2276.104s) hex dump (first 32 bytes): 01 00 00 00 81 ff ff ff 00 00 00 00 00 00 00 00 ................ 40 7d 37 81 ff ff ff ff 50 a2 e2 2a 00 88 ff ff @}7.....P..*.... backtrace: [] kmemleak_alloc+0x26/0x50 [] kmem_cache_alloc+0xdc/0x190 [] __radix_tree_preload+0x49/0xc0 [] radix_tree_maybe_preload+0x21/0x30 [] add_to_page_cache_lru+0x3c/0xc0 [] grab_cache_page_write_begin+0x98/0xf0 [] f2fs_write_begin+0xa1/0x370 [f2fs] [] generic_perform_write+0xc7/0x1e0 [] __generic_file_aio_write+0x1d0/0x400 [] generic_file_aio_write+0x60/0xe0 [] do_sync_write+0x5a/0x90 [] vfs_write+0xc5/0x1f0 [] SyS_write+0x52/0xb0 [] system_call_fastpath+0x16/0x1b [] 0xffffffffffffffff -- Jaegeuk Kim Samsung -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org