Hello Bart, I hope all is well with you. Quick question preparing to test v5.1-rc2 SRP, my usual method is first validate the prior kernel I had in place. This had passed tests previously (5.0.0-rc2) but I had not run the target server reboot test, just the disconnect tests. Today with mapped SRP devices I rebooted the target server and the client panicked. Its been a while and I have been so busy that have not kept up with all the fixes. Is this a known issue. Thanks Laurence 5414228.917507] scsi host2: ib_srp: Path record query failed: sgid fe80:0000:0000:0000:7cfe:9003:0072:6ed3, dgid fe80:0000:0000:0000:7cfe:9003:0072:6e4f, pkey 0xffff, service_id 0x7cfe900300726e4e [5414229.014355] scsi host2: reconnect attempt 7 failed (-110) [5414239.318161] scsi host2: ib_srp: Sending CM DREQ failed [5414239.318165] scsi host2: ib_srp: Sending CM DREQ failed [5414239.318167] scsi host2: ib_srp: Sending CM DREQ failed [5414239.318168] scsi host2: ib_srp: Sending CM DREQ failed [5414239.318170] scsi host2: ib_srp: Sending CM DREQ failed [5414239.318172] scsi host2: ib_srp: Sending CM DREQ failed [5414239.318173] scsi host2: ib_srp: Sending CM DREQ failed [5414239.318175] scsi host2: ib_srp: Sending CM DREQ failed [5414243.670072] scsi host2: ib_srp: Got failed path rec status -110 [5414243.702179] scsi host2: ib_srp: Path record query failed: sgid fe80:0000:0000:0000:7cfe:9003:0072:6ed3, dgid fe80:0000:0000:0000:7cfe:9003:0072:6e4f, pkey 0xffff, service_id 0x7cfe900300726e4e [5414243.799313] scsi host2: reconnect attempt 8 failed (-110) [5414247.510115] scsi host1: ib_srp: Sending CM REQ failed [5414247.510140] scsi host1: reconnect attempt 1 failed (-104) [5414247.849078] BUG: unable to handle kernel NULL pointer dereference at 00000000000000b8 [5414247.893793] #PF error: [normal kernel read fault] [5414247.921839] PGD 0 P4D 0 [5414247.937280] Oops: 0000 [#1] SMP PTI [5414247.958332] CPU: 4 PID: 7773 Comm: kworker/4:1H Kdump: loaded Tainted: G I 5.0.0-rc2+ #2 [5414248.012856] Hardware name: HP ProLiant DL380 G7, BIOS P67 08/16/2015 [5414248.026174] device-mapper: multipath: Failing path 8:48. [5414248.050003] Workqueue: kblockd blk_mq_run_work_fn [5414248.108378] RIP: 0010:blk_mq_dispatch_rq_list+0xc9/0x590 [5414248.139724] Code: 0f 85 c2 04 00 00 83 44 24 28 01 48 8b 45 00 48 39 c5 0f 84 ea 00 00 00 48 8b 5d 00 80 3c 24 00 4c 8d 6b b8 4c 8b 63 c8 75 25 <49> 8b 84 24 b8 00 00 00 48 8b 40 40 48 8b 40 10 48 85 c0 74 10 4c [5414248.246176] RSP: 0018:ffffb1cd8760fd90 EFLAGS: 00010246 [5414248.275599] RAX: ffffa049d67a1308 RBX: ffffa049d67a1308 RCX: 0000000000000004 [5414248.316090] RDX: 0000000000000000 RSI: ffffb1cd8760fe20 RDI: ffffa0552ca08000 [5414248.356884] RBP: ffffb1cd8760fe20 R08: 0000000000000000 R09: 8080808080808080 [5414248.397632] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 [5414248.439323] R13: ffffa049d67a12c0 R14: 0000000000000000 R15: ffffa0552ca08000 [5414248.481743] FS: 0000000000000000(0000) GS:ffffa04a37880000(0000) knlGS:0000000000000000 [5414248.528310] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [5414248.561779] CR2: 00000000000000b8 CR3: 0000000e9d40e004 CR4: 00000000000206e0 [5414248.602420] Call Trace: [5414248.616660] blk_mq_sched_dispatch_requests+0x15c/0x180 [5414248.647066] __blk_mq_run_hw_queue+0x5f/0xf0 [5414248.672633] process_one_work+0x171/0x370 [5414248.695443] worker_thread+0x49/0x3f0 [5414248.716730] kthread+0xf8/0x130 [5414248.735085] ? max_active_store+0x80/0x80 [5414248.758569] ? kthread_bind+0x10/0x10 [5414248.779953] ret_from_fork+0x35/0x40 [5414248.801005] Modules linked in: ib_isert iscsi_target_mod target_core_mod ib_srp rpcrdma scsi_transport_srp rdma_ucm ib_iser ib_ipoib ib_umad rdma_cm libiscsi iw_cm scsi_transport_iscsi ib_cm sunrpc mlx5_ib ib_uverbs ib_core intel_powerclamp coretemp kvm_intel kvm irqbypass ipmi_ssif crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel iTCO_wdt crypto_simd cryptd gpio_ich iTCO_vendor_support glue_helper joydev ipmi_si dm_service_time pcspkr ipmi_devintf hpilo hpwdt sg ipmi_msghandler acpi_power_meter lpc_ich i7core_edac pcc_cpufreq dm_multipath ip_tables xfs libcrc32c radeon sd_mod i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm mlx5_core crc32c_intel serio_raw i2c_core hpsa bnx2 scsi_transport_sas mlxfw devlink dm_mirror dm_region_hash dm_log dm_mod [5414249.199354] CR2: 00000000000000b8
