From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754663AbbGaXnL (ORCPT ); Fri, 31 Jul 2015 19:43:11 -0400 Received: from mail-bl2on0079.outbound.protection.outlook.com ([65.55.169.79]:61580 "EHLO na01-bl2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751944AbbGaXnI (ORCPT ); Fri, 31 Jul 2015 19:43:08 -0400 Authentication-Results: spf=pass (sender IP is 63.163.107.173) smtp.mailfrom=sandisk.com; ZenIV.linux.org.uk; dkim=none (message not signed) header.d=none; X-AuditID: ac160a69-f790f6d000001879-f5-55bc08083976 To: Al Viro CC: "linux-kernel@vger.kernel.org" From: Bart Van Assche Subject: unpinning an unpinned lock warning triggered by generic_file_fsync() Message-ID: <55BC0807.9020308@sandisk.com> Date: Fri, 31 Jul 2015 16:43:03 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 MIME-Version: 1.0 Content-Type: text/plain; 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I don't think that this warning was triggered by my changes. Has anyone seen this before ? Thanks, Bart. Jul 31 16:02:37 srp-ini multipathd: mpatha: load table [0 5859375088 multipath 3 queue_if_no_path pg_init_retries 50 1 alua 2 1 queue-length 0 7 1 8:240 1 8:224 1 65:0 1 66:160 1 66:224 1 67:16 1 66:240 1 queue-length 0 8 1 8:32 1 8:48 1 8:96 1 65:224 1 65:112 1 65:240 1 66:0 1 67:160 1] Jul 31 16:02:37 srp-ini multipathd: sdbg [67:160]: path added to devmap mpatha Jul 31 16:02:37 srp-ini multipathd: sdbh: add path (uevent) Jul 31 16:02:37 srp-ini kernel: sd 14:0:0:0: alua: port group 101 state S preferred supports tOlUSNA Jul 31 16:02:37 srp-ini kernel: ------------[ cut here ]------------ Jul 31 16:02:37 srp-ini kernel: WARNING: CPU: 2 PID: 9262 at kernel/locking/lockdep.c:3497 lock_unpin_lock+0x105/0x110() Jul 31 16:02:37 srp-ini kernel: unpinning an unpinned lock Jul 31 16:02:37 srp-ini kernel: Modules linked in: dm_queue_length scsi_dh_alua af_packet xt_tcpudp ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_con ntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack msr iptable_mangle iptable_raw iptable_filter ip_tables x_tables sg ib_srp scsi_transport_srp x86_pk g_temp_thermal coretemp crct10dif_pclmul crc32c_intel aesni_intel aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd microcode pcspkr tg3 libphy lpc_ich mfd_core ib_ipoib wmi acpi_power_meter rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm processor thermal_sys hwmon button dm_multipath scsi_dh dm_mod ext4 crc16 mbcache jbd2 mlx4_en ptp pps_core mlx4_ib ib_sa ib_mad ib_core ib_addr sd_mod sr_mod cdrom hid_generic usbhid hid ahci libahci libata ehci_pci ehci_hcd mlx4_core usbcore usb_common scsi_mod autofs4 Jul 31 16:02:37 srp-ini kernel: CPU: 2 PID: 9262 Comm: kworker/2:98 Not tainted 4.2.0-rc4-debug+ #1 Jul 31 16:02:37 srp-ini kernel: Hardware name: Dell Inc. PowerEdge R430/03XKDV, BIOS 1.0.2 11/17/2014 Jul 31 16:02:37 srp-ini kernel: Workqueue: dio/dm-2 dio_aio_complete_work Jul 31 16:02:37 srp-ini kernel: ffffffff817a80ba ffff88006ea03a58 ffffffff814f9cde 0000000000000000 Jul 31 16:02:37 srp-ini kernel: ffff88006ea03aa8 ffff88006ea03a98 ffffffff810746ba ffff88006ea03aa8 Jul 31 16:02:37 srp-ini kernel: 0000000000000003 ffff88040d962c80 ffff88047fc95618 0000000000000092 Jul 31 16:02:37 srp-ini kernel: Call Trace: Jul 31 16:02:37 srp-ini kernel: [] dump_stack+0x4c/0x65 Jul 31 16:02:37 srp-ini kernel: [] warn_slowpath_common+0x8a/0xc0 Jul 31 16:02:37 srp-ini kernel: [] warn_slowpath_fmt+0x46/0x50 Jul 31 16:02:37 srp-ini kernel: [] ? __lock_is_held+0x4d/0x70 Jul 31 16:02:37 srp-ini kernel: [] lock_unpin_lock+0x105/0x110 Jul 31 16:02:37 srp-ini kernel: [] __schedule+0x414/0xa90 Jul 31 16:02:37 srp-ini kernel: [] schedule+0x3e/0x90 Jul 31 16:02:37 srp-ini kernel: [] schedule_preempt_disabled+0x15/0x20 Jul 31 16:02:37 srp-ini kernel: [] mutex_lock_nested+0x156/0x3a0 Jul 31 16:02:37 srp-ini kernel: [] ? __generic_file_fsync+0x44/0x90 Jul 31 16:02:37 srp-ini kernel: [] __generic_file_fsync+0x44/0x90 Jul 31 16:02:37 srp-ini kernel: [] generic_file_fsync+0x1d/0x40 Jul 31 16:02:37 srp-ini kernel: [] ext4_sync_file+0x268/0x610 [ext4] Jul 31 16:02:37 srp-ini kernel: [] vfs_fsync_range+0x3d/0xb0 Jul 31 16:02:37 srp-ini kernel: [] dio_complete+0x141/0x180 Jul 31 16:02:37 srp-ini kernel: [] dio_aio_complete_work+0x27/0x30 Jul 31 16:02:37 srp-ini kernel: [] process_one_work+0x1d8/0x7c0 Jul 31 16:02:37 srp-ini kernel: [] ? process_one_work+0x14b/0x7c0 Jul 31 16:02:37 srp-ini kernel: [] worker_thread+0x114/0x460 Jul 31 16:02:37 srp-ini kernel: [] ? process_one_work+0x7c0/0x7c0 Jul 31 16:02:37 srp-ini kernel: [] kthread+0xf8/0x110 Jul 31 16:02:37 srp-ini kernel: [] ? kthread_create_on_node+0x210/0x210 Jul 31 16:02:37 srp-ini kernel: [] ret_from_fork+0x3f/0x70 Jul 31 16:02:37 srp-ini kernel: [] ? kthread_create_on_node+0x210/0x210 Jul 31 16:02:37 srp-ini kernel: ---[ end trace 50dfc2f612b77d64 ]--- Jul 31 16:02:38 srp-ini kernel: sd 14:0:0:0: alua: stpg sense code: 04/67/0a Jul 31 16:02:38 srp-ini kernel: device-mapper: multipath: Failing path 8:240. Jul 31 16:02:38 srp-ini kernel: sd 13:0:0:0: alua: port group 101 state S preferred supports tOlUSNA