From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bart Van Assche Subject: 4.1-rc2 dm-multipath-mq kernel warning Date: Tue, 5 May 2015 16:04:21 +0200 Message-ID: <5548CDE5.9@sandisk.com> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: Mike Snitzer Cc: device-mapper development List-Id: dm-devel.ids Hello Mike, While retesting my SRP initiator patches on top of kernel v4.1-rc2 with DM_MQ_DEFAULT=y I ran into the kernel warning below. Does this mean that I'm missing any device mapper related patches ? This warning was reported shortly after scsi_remove_host() had been invoked. Thanks, Bart. [ 636.982089] device-mapper: multipath: Failing path 8:16. [ 636.982395] blk_update_request: I/O error, dev dm-1, sector 42378 [ 636.987025] ------------[ cut here ]------------ [ 636.987053] WARNING: CPU: 0 PID: 3 at drivers/md/dm.c:1090 free_rq_clone+0x7a/0xf0 [dm_mod]() [ 636.987070] Modules linked in: dm_service_time dm_multipath scsi_dh ib_srp scsi_transport_srp netconsole configfs fuse dm_crypt xts gf128mul algif_skcipher af_alg loop rdma_ucm rdma_cm iw_cm ib_ipoib ib_cm ib_uverbs ib_umad mlx4_en ptp pps_core iscsi_ibft iscsi_boot_sysfs af_packet mlx4_ib ib_sa ib_mad ib_core ib_addr mlx4_core iTCO_wdt sky2 iTCO_vendor_support coretemp lpc_ich shpchp mfd_core pcspkr serio_raw i2c_i801 acpi_cpufreq tpm_infineon tpm_tis tpm asus_atk0110 button processor dm_mod sr_mod cdrom ata_generic radeon ata_piix firewire_ohci i2c_algo_bit firewire_core crc_itu_t drm_kms_helper ttm pata_marvell drm floppy sg [last unloaded: scsi_transport_srp] [ 636.998755] CPU: 0 PID: 3 Comm: ksoftirqd/0 Not tainted 4.1.0-rc2-debug+ #1 [ 636.998771] Hardware name: System manufacturer P5Q DELUXE/P5Q DELUXE, BIOS 2301 07/10/2009 [ 636.998786] ffffffffa02ce8ad ffff8801b81efca8 ffffffff81606de3 ffff8801bfc0fff8 [ 636.998862] 0000000000000000 ffff8801b81efce8 ffffffff81052940 ffffffff81e3d288 [ 636.998953] ffff8800a1f82580 ffff8800a1e40000 ffff8800a1f82530 ffff8800a1e40000 [ 636.999032] Call Trace: [ 636.999054] [] dump_stack+0x4c/0x6e [ 636.999074] [] warn_slowpath_common+0x80/0xc0 [ 636.999092] [] warn_slowpath_null+0x15/0x20 [ 636.999115] [] free_rq_clone+0x7a/0xf0 [dm_mod] [ 636.999139] [] dm_softirq_done+0x13c/0x250 [dm_mod] [ 636.999162] [] blk_done_softirq+0x78/0x90 [ 636.999181] [] __do_softirq+0x10a/0x240 [ 636.999200] [] run_ksoftirqd+0x1a/0x70 [ 636.999218] [] smpboot_thread_fn+0x16f/0x260 [ 636.999256] [] kthread+0xf9/0x110 [ 636.999294] [] ret_from_fork+0x42/0x70 [ 636.999338] ---[ end trace ba34bc950a902b8f ]---