Hello Below issue was triggered with blktests srp/ tests during CKI run on linux-block/for-next, seems it was introduced from [2], and still can be reproduced with [1] [1] 4ff840e57c84 Merge branch 'for-5.16/drivers' into for-next [2] 59d62b58f120 Merge branch 'for-5.16/block' into for-next [ 108.059798] run blktests srp/005 at 2021-10-19 16:06:40 [ 108.255646] null_blk: module loaded [ 108.332655] SoftiWARP attached [ 108.340999] enP2p1s0f1 speed is unknown, defaulting to 1000 [ 108.341030] enP2p1s0f1 speed is unknown, defaulting to 1000 [ 108.341077] enP2p1s0f1 speed is unknown, defaulting to 1000 [ 108.341394] enP2p1s0f1 speed is unknown, defaulting to 1000 [ 108.343816] enP2p1s0f1 speed is unknown, defaulting to 1000 [ 108.345277] enP2p1s0f2 speed is unknown, defaulting to 1000 [ 108.345305] enP2p1s0f2 speed is unknown, defaulting to 1000 [ 108.345350] enP2p1s0f2 speed is unknown, defaulting to 1000 [ 108.345629] enP2p1s0f2 speed is unknown, defaulting to 1000 [ 108.348057] enP2p1s0f1 speed is unknown, defaulting to 1000 [ 108.348115] enP2p1s0f2 speed is unknown, defaulting to 1000 [ 108.349625] enP2p1s0f3 speed is unknown, defaulting to 1000 [ 108.349649] enP2p1s0f3 speed is unknown, defaulting to 1000 [ 108.349687] enP2p1s0f3 speed is unknown, defaulting to 1000 [ 108.349930] enP2p1s0f3 speed is unknown, defaulting to 1000 [ 108.369010] scsi_debug:sdebug_add_store: dif_storep 524288 bytes @ 00000000cdaf1e69 [ 108.369378] scsi_debug:sdebug_driver_probe: scsi_debug: trim poll_queues to 0. poll_q/nr_hw = (0/1) [ 108.369398] scsi_debug:sdebug_driver_probe: host protection DIF3 DIX3 [ 108.369422] scsi host1: scsi_debug: version 0190 [20200710] [ 108.369422] dev_size_mb=32, opts=0x0, submit_queues=1, statistics=0 [ 108.369757] scsi 1:0:0:0: Direct-Access Linux scsi_debug 0190 PQ: 0 ANSI: 7 [ 108.370059] sd 1:0:0:0: Power-on or device reset occurred [ 108.370153] sd 1:0:0:0: [sdb] Enabling DIF Type 3 protection [ 108.370231] sd 1:0:0:0: [sdb] 65536 512-byte logical blocks: (33.6 MB/32.0 MiB) [ 108.370260] sd 1:0:0:0: [sdb] Write Protect is off [ 108.370301] sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA [ 108.370320] sd 1:0:0:0: Attached scsi generic sg2 type 0 [ 108.370357] sd 1:0:0:0: [sdb] Optimal transfer size 524288 bytes [ 108.603860] sd 1:0:0:0: [sdb] Enabling DIX T10-DIF-TYPE3-CRC protection [ 108.603883] sd 1:0:0:0: [sdb] DIF application tag size 6 [ 108.714067] sd 1:0:0:0: [sdb] Attached SCSI disk [ 108.850543] enP2p1s0f1 speed is unknown, defaulting to 1000 [ 108.865922] enP2p1s0f2 speed is unknown, defaulting to 1000 [ 108.880902] enP2p1s0f3 speed is unknown, defaulting to 1000 [ 108.910754] Rounding down aligned max_sectors from 4294967295 to 4294967168 [ 108.925829] enP2p1s0f1 speed is unknown, defaulting to 1000 [ 108.925868] enP2p1s0f2 speed is unknown, defaulting to 1000 [ 108.925911] enP2p1s0f3 speed is unknown, defaulting to 1000 [ 109.012123] Rounding down aligned max_sectors from 255 to 128 [ 109.024700] Rounding down aligned max_sectors from 255 to 128 [ 109.074022] Rounding down aligned max_sectors from 4294967295 to 4294967168 [ 109.076234] iwpm_register_pid: Unable to send a nlmsg (client = 2) [ 109.524559] scsi host2: REJ reason 0xffffff98 [ 109.524613] scsi host2: ib_srp: Connection 0/1 to 10.16.214.130 failed [ 109.829577] ib_srpt Received SRP_LOGIN_REQ with i_port_id ac1f:6b09:a3da:0000:0000:0000:0000:0000, t_port_id ae1f:6bff:fe09:a3da:ae1f:6bff:fe09:a3da and it_iu_len 8260 on port 1 (guid=ac1f:6b09:a3da:0000:0000:0000:0000:0000); pkey 0x00 [ 109.838078] scsi host2: SRP.T10:AE1F6BFFFE09A3DA [ 109.838975] scsi 2:0:0:0: Direct-Access LIO-ORG IBLOCK 4.0 PQ: 0 ANSI: 6 [ 109.839546] scsi 2:0:0:0: alua: supports implicit and explicit TPGS [ 109.839568] scsi 2:0:0:0: alua: device naa.60014056e756c6c62300000000000000 port group 0 rel port 1 [ 109.839863] sd 2:0:0:0: Warning! Received an indication that the LUN assignments on this target have changed. The Linux SCSI layer does not automatical [ 109.839912] sd 2:0:0:0: Attached scsi generic sg3 type 0 [ 109.864457] sd 2:0:0:0: alua: transition timeout set to 60 seconds [ 109.864492] sd 2:0:0:0: alua: port group 00 state A non-preferred supports TOlUSNA [ 109.865527] scsi 2:0:0:2: Direct-Access LIO-ORG IBLOCK 4.0 PQ: 0 ANSI: 6 [ 109.865785] sd 2:0:0:0: [sdc] 65536 512-byte logical blocks: (33.6 MB/32.0 MiB) [ 109.865900] sd 2:0:0:0: [sdc] Write Protect is off [ 109.865993] scsi 2:0:0:2: alua: supports implicit and explicit TPGS [ 109.866016] scsi 2:0:0:2: alua: device naa.60014057363736964626700000000000 port group 0 rel port 1 [ 109.866094] sd 2:0:0:0: [sdc] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA [ 109.866149] srpt/0xac1f6b09a3da00000000000000000000: Unsupported SCSI Opcode 0xa3, sending CHECK_CONDITION. [ 109.866188] sd 2:0:0:2: Attached scsi generic sg4 type 0 [ 109.866324] sd 2:0:0:0: [sdc] Optimal transfer size 65536 bytes [ 109.866612] scsi 2:0:0:1: Direct-Access LIO-ORG IBLOCK 4.0 PQ: 0 ANSI: 6 [ 109.866909] sd 2:0:0:2: [sdd] 65536 512-byte logical blocks: (33.6 MB/32.0 MiB) [ 109.867009] scsi 2:0:0:1: alua: supports implicit and explicit TPGS [ 109.867031] scsi 2:0:0:1: alua: device naa.60014056e756c6c62310000000000000 port group 0 rel port 1 [ 109.867046] sd 2:0:0:2: [sdd] Write Protect is off [ 109.867188] sd 2:0:0:1: Attached scsi generic sg5 type 0 [ 109.867213] sd 2:0:0:2: [sdd] Write cache: enabled, read cache: enabled, supports DPO and FUA [ 109.867275] srpt/0xac1f6b09a3da00000000000000000000: Unsupported SCSI Opcode 0xa3, sending CHECK_CONDITION. [ 109.867392] sd 2:0:0:2: [sdd] Optimal transfer size 524288 bytes [ 109.868049] sd 2:0:0:1: Warning! Received an indication that the LUN assignments on this target have changed. The Linux SCSI layer does not automatical [ 109.871388] scsi host3: ib_srp: Already connected to target port with id_ext=ae1f6bfffe09a3da;ioc_guid=ae1f6bfffe09a3da;dest=fe80:0000:0000:0000:ae1f:6bff:fe09:a3da [ 109.923853] sd 2:0:0:1: alua: transition timeout set to 60 seconds [ 109.923888] sd 2:0:0:1: alua: port group 00 state A non-preferred supports TOlUSNA [ 109.928326] sd 2:0:0:1: [sde] 65536 512-byte logical blocks: (33.6 MB/32.0 MiB) [ 109.928488] sd 2:0:0:1: [sde] Write Protect is off [ 109.928756] sd 2:0:0:1: [sde] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA [ 109.928810] srpt/0xac1f6b09a3da00000000000000000000: Unsupported SCSI Opcode 0xa3, sending CHECK_CONDITION. [ 109.928998] sd 2:0:0:1: [sde] Optimal transfer size 65536 bytes [ 109.964047] sd 2:0:0:2: alua: transition timeout set to 60 seconds [ 109.964068] sd 2:0:0:2: alua: port group 00 state A non-preferred supports TOlUSNA [ 109.982975] enP2p1s0f1 speed is unknown, defaulting to 1000 [ 110.001719] enP2p1s0f2 speed is unknown, defaulting to 1000 [ 110.021328] enP2p1s0f3 speed is unknown, defaulting to 1000 [ 110.164512] sd 2:0:0:2: [sdd] Attached SCSI disk [ 110.254516] sd 2:0:0:0: [sdc] Attached SCSI disk [ 110.274378] sd 2:0:0:1: [sde] Attached SCSI disk [ 111.416965] ------------[ cut here ]------------ [ 111.416994] kernel BUG at block/blk-mq.c:1042! [ 111.417017] Oops: Exception in kernel mode, sig: 5 [#1] [ 111.417030] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA PowerNV [ 111.417055] Modules linked in: ib_srp scsi_transport_srp target_core_user uio target_core_pscsi target_core_file ib_srpt target_core_iblock target_core_mod rdma_cm iw_cm ib_cm scsi_debug siw null_blk dm_service_time ib_umad ib_uverbs scsi_dh_rdac scsi_dh_emc scsi_dh_alua dm_multipath ib_core rfkill sunrpc joydev i40e ses enclosure scsi_transport_sas at24 tpm_i2c_nuvoton regmap_i2c rtc_opal i2c_opal ipmi_powernv ipmi_devintf ipmi_msghandler ofpart opal_prd powernv_flash crct10dif_vpmsum mtd fuse zram ip_tables xfs ast i2c_algo_bit drm_vram_helper drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops cec drm_ttm_helper ttm vmx_crypto drm crc32c_vpmsum i2c_core aacraid drm_panel_orientation_quirks [last unloaded: null_blk] [ 111.417323] CPU: 73 PID: 9808 Comm: systemd-udevd Not tainted 5.15.0-rc6 #1 [ 111.417357] NIP: c00000000093ce08 LR: c00000000093cdb0 CTR: c00000000098c3e0 [ 111.417392] REGS: c00000005d033300 TRAP: 0700 Not tainted (5.15.0-rc6) [ 111.417430] MSR: 9000000000029033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 24428242 XER: 20040000 [ 111.417467] CFAR: c00000000093cdbc IRQMASK: 0 [ 111.417467] GPR00: c00000000093cdb0 c00000005d0335a0 c0000000028a9a00 c0000000110f7800 [ 111.417467] GPR04: c00000061d9d2e00 0000000000000000 c00000005d033350 00000000000d9479 [ 111.417467] GPR08: 0000000000000000 0000000000000001 c00000061d9d2e47 c00800000a416808 [ 111.417467] GPR12: 0000000000000000 c000000ffff90280 0000000000000000 c00000005d033cd0 [ 111.417467] GPR16: 0000000148dfab64 61c8864680b583eb 0000000000080001 c0000000966459d8 [ 111.417467] GPR20: c00000002a895198 0000000000000000 0000000000080001 0000000000000000 [ 111.417467] GPR24: 00000000000001ff c00000061d9d2f28 c000000016f10520 c00000061d9d2f78 [ 111.417467] GPR28: c00000061d9d2e00 0000000000000064 c000000016f10000 c00000061d9d2e00 [ 111.417754] NIP [c00000000093ce08] blk_mq_requeue_request+0x88/0xb0 [ 111.417791] LR [c00000000093cdb0] blk_mq_requeue_request+0x30/0xb0 [ 111.417828] Call Trace: [ 111.417845] [c00000005d0335a0] [c00000000093cdb0] blk_mq_requeue_request+0x30/0xb0 (unreliable) [ 111.417884] [c00000005d0335e0] [c000000000db6038] dm_requeue_original_request+0x98/0x120 [ 111.417920] [c00000005d033620] [c000000000db628c] dm_mq_queue_rq+0x1cc/0x4e0 [ 111.417958] [c00000005d0336d0] [c00000000093d6b4] __blk_mq_try_issue_directly+0x1b4/0x220 [ 111.417995] [c00000005d033730] [c00000000093eae4] blk_mq_request_issue_directly+0x54/0xf0 [ 111.418034] [c00000005d033780] [c00000000093ee68] blk_mq_flush_plug_list+0x2e8/0x3a0 [ 111.418075] [c00000005d033810] [c00000000092c828] blk_flush_plug_list+0x158/0x1a0 [ 111.418111] [c00000005d033880] [c00000000092cab0] blk_finish_plug+0x50/0x6c [ 111.418139] [c00000005d0338b0] [c0000000003f4654] read_pages+0x1d4/0x4c0 [ 111.418175] [c00000005d033930] [c0000000003f4b68] page_cache_ra_unbounded+0x228/0x340 [ 111.418215] [c00000005d0339e0] [c0000000003f5378] force_page_cache_ra+0x108/0x190 [ 111.418252] [c00000005d033a20] [c0000000003e5104] filemap_get_pages+0x124/0x8b0 [ 111.418290] [c00000005d033b00] [c0000000003e5980] filemap_read+0xf0/0x490 [ 111.418327] [c00000005d033c40] [c00000000091eec8] blkdev_read_iter+0x68/0xa0 [ 111.418365] [c00000005d033c70] [c000000000521304] new_sync_read+0x124/0x1b0 [ 111.418400] [c00000005d033d10] [c0000000005243a0] vfs_read+0x1d0/0x240 [ 111.418437] [c00000005d033d60] [c0000000005249d8] ksys_read+0x78/0x130 [ 111.418475] [c00000005d033db0] [c00000000002d648] system_call_exception+0x188/0x360 [ 111.418515] [c00000005d033e10] [c00000000000c1e8] system_call_vectored_common+0xe8/0x278 [ 111.418554] --- interrupt: 3000 at 0x7fffa9d38d34 [ 111.418589] NIP: 00007fffa9d38d34 LR: 0000000000000000 CTR: 0000000000000000 [ 111.418624] REGS: c00000005d033e80 TRAP: 3000 Not tainted (5.15.0-rc6) [ 111.418659] MSR: 900000000280f033 <SF,HV,VEC,VSX,EE,PR,FP,ME,IR,DR,RI,LE> CR: 44424848 XER: 00000000 [ 111.418714] IRQMASK: 0 [ 111.418714] GPR00: 0000000000000003 00007fffda32bdb0 00007fffa9d67f00 0000000000000006 [ 111.418714] GPR04: 0000000148eca768 0000000000000040 0000000000000000 0000000000000001 [ 111.418714] GPR08: 0000000000000008 0000000000000000 0000000000000000 0000000000000000 [ 111.418714] GPR12: 0000000000000000 00007fffa8a07ed0 0000000000000000 0000000000000000 [ 111.418714] GPR16: 0000000148dfab64 00007fffda331138 0000000148f74500 ffffffffffffffff [ 111.418714] GPR20: 00007fffa9e10394 00007fffa9de38e8 00007fffa9de38f8 00007fffda32bfd0 [ 111.418714] GPR24: 00007fffda32bfc8 0000000000000000 0000000148e5d050 0000000148eca740 [ 111.418714] GPR28: 0000000000000040 0000000001ff0000 0000000148e5d000 0000000148eca758 [ 111.419006] NIP [00007fffa9d38d34] 0x7fffa9d38d34 [ 111.419040] LR [0000000000000000] 0x0 [ 111.419060] --- interrupt: 3000 [ 111.419081] Instruction dump: [ 111.419101] 2c2c0000 41820018 7d8903a6 7fe3fb78 4e800421 e8410018 e8a10028 e93f0048 [ 111.419149] 395f0048 7d295278 3149ffff 7d2a4910 <0b090000> 38210040 7fe3fb78 38800001 [ 111.419203] ---[ end trace fd7185979edf4363 ]--- [ 111.622004] [ 112.622024] Kernel panic - not syncing: Fatal exception [ 114.488291] ---[ end Kernel panic - not syncing: Fatal exception ]--- -- Best Regards, Yi Zhang