I am testing Linux Target SCSI, LIO, with a Ceph File System backstore and I am seeing this error on my LIO gateway. I am using Ceph v9.2.0 on a 4.4rc4 Kernel, on Trusty, using a kernel mounted Ceph File System. A file on the Ceph File System is exported via iSCSI to a VMware ESXi 5.0 server, and I am seeing this error when doing a lot of I/O on the ESXi server. Is this a LIO or a Ceph issue? [Tue Dec 15 00:46:55 2015] ------------[ cut here ]------------ [Tue Dec 15 00:46:55 2015] WARNING: CPU: 0 PID: 1123421 at /home/kernel/COD/linux/fs/ceph/addr.c:125 ceph_set_page_dirty+0x230/0x240 [ceph]() [Tue Dec 15 00:46:55 2015] Modules linked in: iptable_filter ip_tables x_tables xfs rbd iscsi_target_mod vhost_scsi tcm_qla2xxx ib_srpt tcm_fc tcm_usb_gadget tcm_loop target_core_file target_core_iblock target_core_pscsi target_core_user target_core_mod ipmi_devintf vhost qla2xxx ib_cm ib_sa ib_mad ib_core ib_addr libfc scsi_transport_fc libcomposite udc_core uio configfs ipmi_ssif ttm drm_kms_helper gpio_ich drm i2c_algo_bit fb_sys_fops coretemp syscopyarea ipmi_si sysfillrect ipmi_msghandler sysimgblt kvm acpi_power_meter 8250_fintek irqbypass hpilo shpchp input_leds serio_raw lpc_ich i7core_edac edac_core mac_hid ceph libceph libcrc32c fscache bonding lp parport mlx4_en vxlan ip6_udp_tunnel udp_tunnel ptp pps_core hid_generic usbhid hid hpsa mlx4_core psmouse bnx2 scsi_transport_sas fjes [last unloaded: target_core_mod] [Tue Dec 15 00:46:55 2015] CPU: 0 PID: 1123421 Comm: iscsi_trx Tainted: G W I 4.4.0-040400rc4-generic #201512061930 [Tue Dec 15 00:46:55 2015] Hardware name: HP ProLiant DL360 G6, BIOS P64 01/22/2015 [Tue Dec 15 00:46:55 2015] 0000000000000000 00000000fdc0ce43 ffff880bf38c38c0 ffffffff813c8ab4 [Tue Dec 15 00:46:55 2015] 0000000000000000 ffff880bf38c38f8 ffffffff8107d772 ffffea00127a8680 [Tue Dec 15 00:46:55 2015] ffff8804e52c1448 ffff8804e52c15b0 ffff8804e52c10f0 0000000000000200 [Tue Dec 15 00:46:55 2015] Call Trace: [Tue Dec 15 00:46:55 2015] [<ffffffff813c8ab4>] dump_stack+0x44/0x60 [Tue Dec 15 00:46:55 2015] [<ffffffff8107d772>] warn_slowpath_common+0x82/0xc0 [Tue Dec 15 00:46:55 2015] [<ffffffff8107d8ba>] warn_slowpath_null+0x1a/0x20 [Tue Dec 15 00:46:55 2015] [<ffffffffc01fadb0>] ceph_set_page_dirty+0x230/0x240 [ceph] [Tue Dec 15 00:46:55 2015] [<ffffffff81188770>] ? pagecache_get_page+0x150/0x1c0 [Tue Dec 15 00:46:55 2015] [<ffffffffc01fe338>] ? ceph_pool_perm_check+0x48/0x700 [ceph] [Tue Dec 15 00:46:55 2015] [<ffffffff8119301d>] set_page_dirty+0x3d/0x70 [Tue Dec 15 00:46:55 2015] [<ffffffffc01fcd7e>] ceph_write_end+0x5e/0x180 [ceph] [Tue Dec 15 00:46:55 2015] [<ffffffff813dc006>] ? iov_iter_copy_from_user_atomic+0x156/0x220 [Tue Dec 15 00:46:55 2015] [<ffffffff81187bc4>] generic_perform_write+0x114/0x1c0 [Tue Dec 15 00:46:55 2015] [<ffffffffc01f818a>] ceph_write_iter+0xf8a/0x1050 [ceph] [Tue Dec 15 00:46:55 2015] [<ffffffffc0205983>] ? ceph_put_cap_refs+0x143/0x320 [ceph] [Tue Dec 15 00:46:55 2015] [<ffffffff810b10ba>] ? check_preempt_wakeup+0xfa/0x220 [Tue Dec 15 00:46:55 2015] [<ffffffff811a7eec>] ? zone_statistics+0x7c/0xa0 [Tue Dec 15 00:46:55 2015] [<ffffffff813dd2ee>] ? copy_page_to_iter+0x5e/0xa0 [Tue Dec 15 00:46:55 2015] [<ffffffff816e5d22>] ? skb_copy_datagram_iter+0x122/0x250 [Tue Dec 15 00:46:55 2015] [<ffffffff812053f6>] vfs_iter_write+0x76/0xc0 [Tue Dec 15 00:46:55 2015] [<ffffffffc02cbf88>] fd_do_rw.isra.5+0xd8/0x1e0 [target_core_file] [Tue Dec 15 00:46:55 2015] [<ffffffffc02cc155>] fd_execute_rw+0xc5/0x2a0 [target_core_file] [Tue Dec 15 00:46:55 2015] [<ffffffffc04696f2>] sbc_execute_rw+0x22/0x30 [target_core_mod] [Tue Dec 15 00:46:55 2015] [<ffffffffc04681ef>] __target_execute_cmd+0x1f/0x70 [target_core_mod] [Tue Dec 15 00:46:55 2015] [<ffffffffc0468da5>] target_execute_cmd+0x195/0x2a0 [target_core_mod] [Tue Dec 15 00:46:55 2015] [<ffffffffc05db89a>] iscsit_execute_cmd+0x20a/0x270 [iscsi_target_mod] [Tue Dec 15 00:46:55 2015] [<ffffffffc05e4aea>] iscsit_sequence_cmd+0xda/0x190 [iscsi_target_mod] [Tue Dec 15 00:46:55 2015] [<ffffffffc05eafbd>] iscsi_target_rx_thread+0x51d/0xe30 [iscsi_target_mod] [Tue Dec 15 00:46:55 2015] [<ffffffff8101566c>] ? __switch_to+0x1dc/0x5a0 [Tue Dec 15 00:46:55 2015] [<ffffffffc05eaaa0>] ? iscsi_target_tx_thread+0x1e0/0x1e0 [iscsi_target_mod] [Tue Dec 15 00:46:55 2015] [<ffffffff8109c8b8>] kthread+0xd8/0xf0 [Tue Dec 15 00:46:55 2015] [<ffffffff8109c7e0>] ? kthread_create_on_node+0x1a0/0x1a0 [Tue Dec 15 00:46:55 2015] [<ffffffff817fc58f>] ret_from_fork+0x3f/0x70 [Tue Dec 15 00:46:55 2015] [<ffffffff8109c7e0>] ? kthread_create_on_node+0x1a0/0x1a0 [Tue Dec 15 00:46:55 2015] ---[ end trace 4079437668c77cbb ]--- [Tue Dec 15 00:47:45 2015] ABORT_TASK: Found referenced iSCSI task_tag: 95784927 [Tue Dec 15 00:47:45 2015] ABORT_TASK: ref_tag: 95784927 already complete, skipping If it is a Ceph File System issue, let me know and I will open a bug. Thanks Eric -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
