Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754184AbbK0KrY (ORCPT ); Fri, 27 Nov 2015 05:47:24 -0500 Received: from mout.gmx.net ([212.227.15.18]:51261 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751538AbbK0KrT (ORCPT ); Fri, 27 Nov 2015 05:47:19 -0500 To: linux-btrfs@vger.kernel.org Cc: Linux Kernel From: =?UTF-8?Q?Toralf_F=c3=b6rster?= Subject: PAX: size overflow detected in function try_merge_map fs/btrfs/extent_map.c:238 Message-ID: <565834B3.4020602@gmx.de> Date: Fri, 27 Nov 2015 11:47:15 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K0:l4BnPySPtpz1ltArIMC2c6i8CnH+lHMrAILT/6HPLLfKEzBep50 quDMcN7ASCFK7h044TBQhfrHzWlETULvfJiMO/M+MhNfRzNfwVMhNq/Xf3uOXovpZczXOGv 4pMZbs6Fe9WgS2dIdB6hRHCbeSaJCC+44GEwtKy/I9iWTuGrXMbqVclbewwXdkiHTel+a5J x5/Gkurjz7gQuzBuUS/9w== X-UI-Out-Filterresults: notjunk:1;V01:K0:8Y4GvBzFsGc=:ZBHezq+JENtQ5cZgiGQJ0P G45/HHqAnf3j6Q0FxNMP0hFb8Ucg8/ZntowiaXcGU6AGqoOJtdzkNfALztG6B+nUFVxzcex3E 5kRL382RdfIj34R020wKq38IdT2YofLageouMo3PS0AYG90q5Dfk0omW5Pw6x63ZT17UYfsv6 7LwQXdj8Is0RaEVdu9fMBhWMZGRujeROMh8ZMHp60oDq469Gel2ISc1A+SWUmeV1L3LxTmBBW 28JMfkYMLWgCVKPr9yo1UoHyJrCs0KYtAo8IDHoNG6fTFMHW+frvLQRYLbB3XuLCHxx0qUDAr yXDVXVuxRayoffoyptv2J71K0C17QIDHNhS9oBzKBhIcwa7VMpOhPHY0gote7nGZo57bsSyuz N7nF4jJlzo7ykTwZRqvhb04Sv4w871kXmquE8jXtkNet/R7kjPHTfmboLSMsW+GRwx9D3gyH4 refcsmqDD9+kQ6hMgmakK+jU0HjiyPMiqEC8c2v8IheRYTWEKOt9DHVCwsvX+0+girNWJh4oW M60PfdiM0dKlbtmXqD+1B++vuxcDa+ezhig/wg41xTMpcOhzjWoEjnBefA2BK3sL6nPeBMy7M BFncs03tJWDzzz9DLFA/f4iw7IUeaNDnZMxny4Ib6y7afYBW+83uaeh7lr++HTv9SttA1oU13 GheyTuZ0Gt38o2XlrkKUeANH6o6BZh8BSb4GicMQG6OvxanWtUzS5eRPFPQTcZrOeAKCTJBUX HMKE9sauTRBFtStNCiecYkpBNhIxmv2/FfQFECku9scMu+1MxIW91OESb3ehynyNWOjN8r6Is JyXCC3K Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4285 Lines: 55 Happened today few times in a row at a stable 64 bit Gentoo hardened system: Nov 27 10:23:09 t44 kernel: [41619.519921] PAX: size overflow detected in function try_merge_map fs/btrfs/extent_map.c:238 cicus.107_102 max, count: 13, decl: block_len; num: 0; context: extent_map; Nov 27 10:23:09 t44 kernel: [41619.519929] CPU: 2 PID: 3361 Comm: host_jskwgen Tainted: G W 4.2.6-hardened-r6 #3 Nov 27 10:23:09 t44 kernel: [41619.519932] Hardware name: LENOVO 20AQCTO1WW/20AQCTO1WW, BIOS GJET83WW (2.33 ) 03/09/2015 Nov 27 10:23:09 t44 kernel: [41619.519934] ffffffff81831343 0000000000000000 ffffffff8183132d ffffc9000298b6e8 Nov 27 10:23:09 t44 kernel: [41619.519939] ffffffff815ee0ea ffff88033e30eec8 ffffffff81831343 ffffc9000298b718 Nov 27 10:23:09 t44 kernel: [41619.519943] ffffffff811ade1b ffff8802fb611480 ffff88032b717510 ffff88032b74fae0 Nov 27 10:23:09 t44 kernel: [41619.519946] Call Trace: Nov 27 10:23:09 t44 kernel: [41619.519955] [] dump_stack+0x45/0x5d Nov 27 10:23:09 t44 kernel: [41619.519959] [] report_size_overflow+0x3b/0x50 Nov 27 10:23:09 t44 kernel: [41619.519963] [] try_merge_map+0x1f1/0x310 Nov 27 10:23:09 t44 kernel: [41619.519966] [] add_extent_mapping+0x132/0x1c0 Nov 27 10:23:09 t44 kernel: [41619.519968] [] btrfs_get_extent+0x659/0xdd0 Nov 27 10:23:09 t44 kernel: [41619.519972] [] ? kmem_cache_alloc+0x32/0x140 Nov 27 10:23:09 t44 kernel: [41619.519975] [] __do_readpage+0x6f2/0xc30 Nov 27 10:23:09 t44 kernel: [41619.519977] [] ? __set_extent_bit+0x14e/0x580 Nov 27 10:23:09 t44 kernel: [41619.519979] [] ? btrfs_real_readdir+0x6f0/0x6f0 Nov 27 10:23:09 t44 kernel: [41619.519983] [] ? _raw_spin_unlock_irq+0x19/0x30 Nov 27 10:23:09 t44 kernel: [41619.519985] [] ? btrfs_lookup_ordered_extent+0xa2/0xe0 Nov 27 10:23:09 t44 kernel: [41619.519987] [] __extent_read_full_page+0x1d6/0x210 Nov 27 10:23:09 t44 kernel: [41619.519989] [] ? btrfs_real_readdir+0x6f0/0x6f0 Nov 27 10:23:09 t44 kernel: [41619.519991] [] ? btrfs_real_readdir+0x6f0/0x6f0 Nov 27 10:23:09 t44 kernel: [41619.519993] [] extent_read_full_page+0x4f/0x80 Nov 27 10:23:09 t44 kernel: [41619.519997] [] ? lru_cache_add+0x19/0x30 Nov 27 10:23:09 t44 kernel: [41619.519999] [] ? inode_tree_add+0x150/0x150 Nov 27 10:23:09 t44 kernel: [41619.520000] [] btrfs_readpage+0x34/0x50 Nov 27 10:23:09 t44 kernel: [41619.520002] [] ? inode_tree_add+0x150/0x150 Nov 27 10:23:09 t44 kernel: [41619.520004] [] do_read_cache_page+0x99/0x1b0 Nov 27 10:23:09 t44 kernel: [41619.520006] [] ? inode_tree_add+0x150/0x150 Nov 27 10:23:09 t44 kernel: [41619.520008] [] ? inode_tree_add+0x150/0x150 Nov 27 10:23:09 t44 kernel: [41619.520009] [] read_cache_page+0x38/0x50 Nov 27 10:23:09 t44 kernel: [41619.520012] [] page_getlink.isra.48.constprop.51+0x3a/0xa0 Nov 27 10:23:09 t44 kernel: [41619.520014] [] page_follow_link_light+0x2b/0x50 Nov 27 10:23:09 t44 kernel: [41619.520016] [] trailing_symlink+0x27f/0x2b0 Nov 27 10:23:09 t44 kernel: [41619.520019] [] path_openat+0x16b/0x1700 Nov 27 10:23:09 t44 kernel: [41619.520021] [] do_filp_open+0x81/0xf0 Nov 27 10:23:09 t44 kernel: [41619.520024] [] do_sys_open+0x133/0x280 Nov 27 10:23:09 t44 kernel: [41619.520026] [] SyS_open+0x31/0x50 Nov 27 10:23:09 t44 kernel: [41619.520028] [] entry_SYSCALL_64_fastpath+0x12/0x83 Furthermore neither login into the KDE screen saver nor login at the console could be made, sys-rq keys didn't worked - power off was my friend. -- Toralf, pgp: C4EACDDE 0076E94E -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/