From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752739AbbHAASi (ORCPT ); Fri, 31 Jul 2015 20:18:38 -0400 Received: from mail-bl2on0098.outbound.protection.outlook.com ([65.55.169.98]:46467 "EHLO na01-bl2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750789AbbHAASg (ORCPT ); Fri, 31 Jul 2015 20:18:36 -0400 Authentication-Results: spf=pass (sender IP is 63.163.107.172) smtp.mailfrom=sandisk.com; vger.kernel.org; dkim=none (message not signed) header.d=none; X-AuditID: ac160a68-f790b6d00000123b-5d-55bc08b1df4d To: "linux-kernel@vger.kernel.org" From: Bart Van Assche Subject: Unpinning an unpinned lock warning triggered by wake_up_new_task() Message-ID: <55BC08B1.5060804@sandisk.com> Date: Fri, 31 Jul 2015 16:45:53 -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; charset="utf-8" Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrKLMWRmVeSWpSXmKPExsWyRoxnke5Gjj2hBlN/yllc3jWHzYHR4/Mm uQDGKC6blNSczLLUIn27BK6MH/82sRacl614dewFewPjA8kuRk4OCQETiXk/vrFA2GISF+6t ZwOxhQROMEocuSDWxcgFZO9glDi8ZwMbTMP2H6sZIRKbGCU27lgNlhARcJTYcfArmM0mYCTx 7f1MsKnCAt4St7sngcV5BbQkTj7pYASxWQRUJab1XwarERWIkJjwsosVokZQ4uTMJ0BxDg5m AU2J9bv0QcLMAvIS29/OYYa44T6LxPktghCHqkucXDKfaQKj4Cwk3bMQumch6V7AyLyKUSw3 M6c4Nz21wNBQrzgxLyWzOFsvOT93EyM4MLkydjBunWR+iFGAg1GJhzeAfU+oEGtiWXFl7iFG CQ5mJRHepdt3hwrxpiRWVqUW5ccXleakFh9ilOZgURLn7c3VCRUSSE8sSc1OTS1ILYLJMnFw SjUw6thqffp2baOh2ptp4u8OrigUTnonab9pTd+jjDlpMxLz9p96/2zTvZWZoTUOTyqP/zyU Kltg9sN5WsyvFD7J12cEpe0v83ctFv5vyrY28cihl6vDTCZc3GApcueETNLReUaBnT/Wyhxk 69l2YVadb1OmA8NLhRBJazHN8pAbv3sdyoSTzk1nV2Ipzkg01GIuKk4EAMJqWcpIAgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrHJMWRmVeSWpSXmKPExsXCtZEjRXcjx55Qg30fRCwu75rD5sDo8XmT XABjFJdNSmpOZllqkb5dAlfGj3+bWAvOy1a8OvaCvYHxgWQXIyeHhICJxPYfqxkhbDGJC/fW s3UxcnEICWxglNg79yg7SEJEwFFix8GvbCA2m4CRxLf3M1lAbGEBb4nb3ZPA4rwCWhInn3SA DWIRUJWY1n8ZrEZUIEJiwssuVogaQYmTM5+AxZkF1CX+zLvEDGHLS2x/O4d5AiPPLCRls5CU zUJStoCReRWjWG5mTnFuemaBoZFecWJeSmZxtl5yfu4mRnCIcEbtYLw+0fwQIxMHp1QDY4QO i8t6zegyHpWX50SzZ61c2pdwIfHMvvchE32Wb+hNmiPvLJGgrXE7ukx21+Z3MQn5T7y9rVRn pi2epRzMe/SA8ubrR6Q6hNMlpPe+2S78nZ0neP2h7kUbX5hdMbA9eoBJ6t+vNL+rnJY9t/7e lc2/vfb+JFnHD4suNzpNC1z7S7fNvuFDuBJLcUaioRZzUXEiAKcyNpDBAQAA X-EOPAttributedMessage: 0 X-Microsoft-Exchange-Diagnostics: 1;BL2FFO11FD040;1:ukFy57f+1dFkBWM/3jnFhbBepXcH/MnNVahM8rOEklCtNmv7TOp1zfl1uvOmco3RtMGntsuM2hfPzLq0meVXkLUYd+FKj1ONDVx4sCl/nHBMludznCSyAnXgqNFIzjkq7RO/bAYxLo0fbS4VirqZQ6TCJBk1/S0t9oKw45PU9MS+nmtdmp0ag9STrIHT5Z4IcBywNknck40ik6ArkajtR+k/+9Azf8z9YXu/9LZNOIzFPiow/aprfarMydeodtBo10m4axwwXM/1ukK+4+Vnzg== X-Forefront-Antispam-Report: CIP:63.163.107.172;CTRY:US;IPV:NLI;EFV:NLI;SFV:NSPM;SFS:(10009020)(6009001)(2980300002)(438002)(199003)(189002)(164054003)(479174004)(65806001)(107886002)(36756003)(54356999)(86362001)(50466002)(50986999)(110136002)(5001960100002)(33656002)(80316001)(87936001)(23676002)(4001350100001)(189998001)(2501003)(62966003)(77156002)(65956001)(106466001)(229853001)(77096005)(83506001)(450100001)(2351001)(92566002)(46102003)(47776003);DIR:OUT;SFP:1101;SCL:1;SRVR:BN3PR02MB1255;H:milsmgep11.sandisk.com;FPR:;SPF:Pass;MLV:sfv;A:1;MX:1;LANG:en; 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Has anyone seen this before ? Thanks, Bart. Jul 31 15:22:42 srp-ini multipathd: 66:32: mark as failed Jul 31 15:22:42 srp-ini multipathd: mpatha: remaining active paths: 0 Jul 31 15:22:42 srp-ini kernel: sd 12:0:0:2: Parameters changed Jul 31 15:22:43 srp-ini kernel: ------------[ cut here ]------------ Jul 31 15:22:43 srp-ini kernel: WARNING: CPU: 0 PID: 358 at kernel/locking/lockdep.c:3497 lock_unpin_lock+0x105/0x110() Jul 31 15:22:43 srp-ini kernel: unpinning an unpinned lock Jul 31 15:22:43 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 x86_pkg_temp_thermal coretemp cr ct10dif_pclmul crc32c_intel aesni_intel aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd microcode pcspkr tg3 libphy lpc_ich mfd_core wmi acpi_power_meter ib_srp scsi_transport_srp ib_ipoib 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 scsi_mod usb_common autofs4 Jul 31 15:22:43 srp-ini multipathd: mpatha: sdc - tur checker reports path is up Jul 31 15:22:43 srp-ini multipathd: 8:32: reinstated Jul 31 15:22:43 srp-ini multipathd: mpatha: remaining active paths: 1 Jul 31 15:22:43 srp-ini multipathd: mpatha: sdr - tur checker reports path is up Jul 31 15:22:43 srp-ini multipathd: 65:16: reinstated Jul 31 15:22:43 srp-ini multipathd: mpatha: remaining active paths: 2 Jul 31 15:22:43 srp-ini kernel: CPU: 0 PID: 358 Comm: multipathd Not tainted 4.2.0-rc4-debug+ #1 Jul 31 15:22:43 srp-ini kernel: Hardware name: Dell Inc. PowerEdge R430/03XKDV, BIOS 1.0.2 11/17/2014 Jul 31 15:22:43 srp-ini kernel: ffffffff817a80ba ffff88044faf7d58 ffffffff814f9cde 0000000000000000 Jul 31 15:22:43 srp-ini kernel: ffff88044faf7da8 ffff88044faf7d98 ffffffff810746ba 0000000000000003 Jul 31 15:22:43 srp-ini kernel: 0000000000000001 ffff88044e4742c0 ffff88047fc15618 0000000000000092 Jul 31 15:22:43 srp-ini kernel: Call Trace: Jul 31 15:22:43 srp-ini kernel: [] dump_stack+0x4c/0x65 Jul 31 15:22:43 srp-ini kernel: [] warn_slowpath_common+0x8a/0xc0 Jul 31 15:22:43 srp-ini kernel: [] warn_slowpath_fmt+0x46/0x50 Jul 31 15:22:43 srp-ini kernel: [] lock_unpin_lock+0x105/0x110 Jul 31 15:22:43 srp-ini kernel: [] wake_up_new_task+0x171/0x2e0 Jul 31 15:22:43 srp-ini kernel: [] _do_fork+0x162/0x760 Jul 31 15:22:43 srp-ini kernel: [] ? lockdep_sys_exit_thunk+0x12/0x14 Jul 31 15:22:43 srp-ini kernel: [] SyS_clone+0x19/0x20 Jul 31 15:22:43 srp-ini kernel: [] entry_SYSCALL_64_fastpath+0x16/0x7a Jul 31 15:22:43 srp-ini kernel: ---[ end trace c764daa6543cd2b6 ]--- Jul 31 15:22:43 srp-ini kernel: device-mapper: multipath: Failing path 8:32. Jul 31 15:22:43 srp-ini kernel: sd 14:0:0:0: alua: port group 101 state S preferred supports tOlUSNA Jul 31 15:22:44 srp-ini kernel: sd 14:0:0:0: alua: stpg sense code: 04/67/0a Jul 31 15:22:44 srp-ini kernel: device-mapper: multipath: Failing path 65:16.