Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753341AbaJVAvF (ORCPT ); Tue, 21 Oct 2014 20:51:05 -0400 Received: from cn.fujitsu.com ([59.151.112.132]:49990 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1750769AbaJVAvC convert rfc822-to-8bit (ORCPT ); Tue, 21 Oct 2014 20:51:02 -0400 X-IronPort-AV: E=Sophos;i="5.04,765,1406563200"; d="scan'208";a="37687353" Message-ID: <5446FF71.7000606@cn.fujitsu.com> Date: Wed, 22 Oct 2014 08:50:57 +0800 From: Qu Wenruo User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 MIME-Version: 1.0 To: Dave Jones , Linux Kernel , , , Subject: Re: [3.18rc1] btrfs triggering vm bug_on References: <20141021215731.GA10296@redhat.com> In-Reply-To: <20141021215731.GA10296@redhat.com> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 8BIT X-Originating-IP: [10.167.226.33] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Any reproducer? Thanks, Qu -------- Original Message -------- Subject: [3.18rc1] btrfs triggering vm bug_on From: Dave Jones To: Linux Kernel Date: 2014年10月22日 05:57 > page:ffffea00088aa1c0 count:4 mapcount:0 mapping:ffff88009901e2d8 index:0x0 > flags: 0x2ffc0000000806(error|referenced|private) > page dumped because: VM_BUG_ON_PAGE(!PageLocked(page)) > ------------[ cut here ]------------ > kernel BUG at mm/filemap.c:747! > invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC > Modules linked in: fuse snd_seq_dummy tun binfmt_misc usb_debug bnep rfcomm nfnetlink scsi_transport_iscsi hidp af_key llc2 can_bcm can_raw nfc caif_socket caif > af_802154 ieee802154 phonet af_rxrpc bluetooth can pppoe pppox ppp_generic slhc irda crc_ccitt rds rose sctp libcrc32c x25 atm netrom appletalk ipx p8023 psnap p8022 llc ax25 c > fg80211 rfkill btrfs xor coretemp hwmon x86_pkg_temp_thermal kvm_intel snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi kvm snd_hda_intel snd_hda_controller snd_h > da_codec snd_hwdep crct10dif_pclmul snd_seq crc32c_intel ghash_clmulni_intel e1000e snd_seq_device raid6_pq snd_pcm microcode snd_timer serio_raw snd pcspkr ptp pps_core shpchp > soundcore nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc > CPU: 3 PID: 6466 Comm: trinity-c402 Not tainted 3.18.0-rc1+ #72 > task: ffff88003ec22f00 ti: ffff88006f3ac000 task.ti: ffff88006f3ac000 > RIP: 0010:[] [] unlock_page+0x7f/0x90 > RSP: 0018:ffff88006f3afa08 EFLAGS: 00010292 > RAX: 0000000000000036 RBX: 0000000000001000 RCX: 0000000000000006 > RDX: 0000000000000000 RSI: ffffffffbb843c53 RDI: ffffffffbb0e399e > RBP: ffff88006f3afa08 R08: 0000000000000001 R09: 0000000000000001 > R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000c2b > R13: 0000000000000000 R14: ffffea00088aa1c0 R15: 0000000000000000 > FS: 00007f7e30942740(0000) GS:ffff880244e00000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 00007f7e2d8b8000 CR3: 0000000098e56000 CR4: 00000000001407e0 > DR0: 000000000219e000 DR1: 0000000000de8000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 > Stack: > ffff88006f3afb28 ffffffffc05adf78 ffffffffc05ae375 ffff88006f3afa70 > ffffffffbb03d193 ffffffffbb0b25c5 ffffffffc05adb10 0000000000000000 > 00000000211ce98b 0000000000000000 ffff88006f3afbd0 ffff880222a87000 > Call Trace: > [] __do_readpage+0x468/0x7a0 [btrfs] > [] ? __extent_read_full_page+0xc5/0xe0 [btrfs] > [] ? prepare_ftrace_return+0x73/0xe0 > [] ? preempt_count_sub+0x5/0x100 > [] ? extent_write_cache_pages.isra.30.constprop.48+0x440/0x440 [btrfs] > [] ? btrfs_writepage_end_io_hook+0x360/0x360 [btrfs] > [] ? preempt_count_sub+0x7b/0x100 > [] ? ftrace_graph_caller+0x5a/0x85 > [] __extent_read_full_page+0xc5/0xe0 [btrfs] > [] ? btrfs_writepage_end_io_hook+0x360/0x360 [btrfs] > [] ? ftrace_graph_caller+0x5a/0x85 > [] extent_read_full_page+0x46/0x80 [btrfs] > [] btrfs_readpage+0x25/0x30 [btrfs] > [] prepare_uptodate_page+0x38/0xa0 [btrfs] > [] prepare_pages.isra.19+0x10c/0x1a0 [btrfs] > [] __btrfs_buffered_write+0x1e4/0x5f0 [btrfs] > [] ? ftrace_graph_caller+0x5a/0x85 > [] btrfs_file_write_iter+0x3ce/0x550 [btrfs] > [] ? cap_inode_getsecid+0x20/0x20 > [] ? new_sync_read+0xd0/0xd0 > [] new_sync_write+0x8e/0xd0 > [] ? ftrace_graph_caller+0x5a/0x85 > [] vfs_write+0xba/0x1f0 > [] SyS_write+0x58/0xd0 > [] tracesys_phase2+0xd4/0xd9 > Code: 48 8d 0c 92 48 8d 0c 4a 48 8b 96 98 00 00 00 48 89 c6 48 8d 3c ca 31 d2 e8 df d5 f2 ff 5d c3 48 c7 c6 38 81 c7 bb e8 01 ff 02 00 <0f> 0b 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 e8 6b 60 6b > > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- 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/