On Wed, Sep 15, 2021 at 07:13:55PM +0800, Yi Zhang wrote: > Hi Ming > Just want let you know I found this issue during blktests block/001 on > storage-qe-36 server, I send this report to linux-block, but the mail was > blocked. :( That is sad, :-( BTW, the following patch can fix the issue: https://lore.kernel.org/linux-block/20210915092547.990285-1-ming.lei@xxxxxxxxxx/T/#u > > ---------- Forwarded message --------- > From: Yi Zhang <yi.zhang@xxxxxxxxxx> > Date: Wed, Sep 15, 2021 at 1:28 PM > Subject: [bug report] WARNING at block/genhd.c:537 > device_add_disk+0x1ad/0x390 observed with blktests block/001 > To: linux-block <linux-block@xxxxxxxxxxxxxxx> > > > Hello > > The following kernel warnings/panic triggered on 5.15.0-rc1 with blktests > block/001, feel free to let me know if you need more info. > > [ 138.287801] run blktests block/001 at 2021-09-15 01:15:33 > [ 138.310004] scsi_debug:sdebug_driver_probe: scsi_debug: trim poll_queues > to 0. poll_q/nr_hw = (0/1) > [ 138.319283] sd 15:0:0:0: Power-on or device reset occurred > [ 138.319292] scsi_debug:sdebug_driver_probe: scsi_debug: trim poll_queues > to 0. poll_q/nr_hw = (0/1) > [ 138.333918] scsi_debug:sdebug_driver_probe: scsi_debug: trim poll_queues > to 0. poll_q/nr_hw = (0/1) > [ 138.334012] sd 16:0:0:0: Power-on or device reset occurred > [ 138.348549] scsi_debug:sdebug_driver_probe: scsi_debug: trim poll_queues > to 0. poll_q/nr_hw = (0/1) > [ 138.348629] sd 17:0:0:0: Power-on or device reset occurred > [ 138.363189] sd 18:0:0:0: Power-on or device reset occurred > [ 138.461052] ------------[ cut here ]------------ > [ 138.465670] WARNING: CPU: 1 PID: 1161 at block/genhd.c:537 > device_add_disk+0x1ad/0x390 > [ 138.473591] Modules linked in: dm_service_time scsi_debug > rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache > netfs rfkill sunrpc vfat fat dm_multipath intel_rapl_msr intel_rapl_common > isst_if_common skx_edac x86_pkg_temp_thermal intel_powerclamp coretemp > kvm_intel kvm mgag200 i2c_algo_bit drm_kms_helper irqbypass iTCO_wdt > crct10dif_pclmul iTCO_vendor_support crc32_pclmul ipmi_ssif syscopyarea > sysfillrect sysimgblt ghash_clmulni_intel fb_sys_fops rapl acpi_ipmi drm > ipmi_si intel_cstate mei_me ipmi_devintf dax_pmem_compat intel_uncore mei > i2c_i801 pcspkr wmi_bmof nd_pmem device_dax lpc_ich ipmi_msghandler > intel_pch_thermal i2c_smbus nd_btt dax_pmem_core acpi_power_meter xfs > libcrc32c sd_mod t10_pi sg ahci libahci libata nfit tg3 megaraid_sas > crc32c_intel libnvdimm wmi dm_mirror dm_region_hash dm_log dm_mod > [ 138.533963] BUG: kernel NULL pointer dereference, address: > 0000000000000098 > [ 138.546449] CPU: 1 PID: 1161 Comm: multipathd Tainted: G S I > 5.15.0-rc1 #1 > [ 138.553403] #PF: supervisor read access in kernel mode > [ 138.553404] #PF: error_code(0x0000) - not-present page > [ 138.553405] PGD 0 P4D 0 > [ 138.561405] Hardware name: Dell Inc. PowerEdge R640/06NR82, BIOS 2.11.2 > 004/21/2021 > [ 138.566542] > [ 138.566543] Oops: 0000 [#1] SMP NOPTI > [ 138.566545] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G S I > 5.15.0-rc1 #1 > [ 138.571683] RIP: 0010:device_add_disk+0x1ad/0x390 > [ 138.574221] Hardware name: Dell Inc. PowerEdge R640/06NR82, BIOS 2.11.2 > 004/21/2021 > [ 138.574222] RIP: 0010:wb_timer_fn+0x37/0x320 > [ 138.581872] Code: 81 3b 03 01 00 00 0f 85 39 ff ff ff e9 25 ff ff ff 0f > 0b bd ea ff ff ff e9 30 ff ff ff 4c 89 ef e8 a8 b6 1b 00 e9 f8 fe ff ff > <0f> 0b bd 01 00 00 00 e9 17 ff ff ff 0f 0b bd ea ff ff ff e9 0b ff > [ 138.583363] Code: 48 8b 5f 60 4c 8b 67 50 8b ab 98 00 00 00 8b 93 b8 00 > 00 00 8b 83 d8 00 00 00 4c 8b 6b 28 01 d5 01 c5 48 8b 43 60 48 8b 40 78 > <4c> 8b b0 98 00 00 00 4d 85 ed 0f 84 c0 00 00 00 48 83 7b 30 00 0f > [ 138.583365] RSP: 0018:ffffb4d7c0300e80 EFLAGS: 00010246 > [ 138.587029] RSP: 0018:ffffb4d7c0e2bc40 EFLAGS: 00010282 > [ 138.594672] RAX: 0000000000000000 RBX: ffff9fd941d74a00 RCX: > 0000000000000020 > [ 138.594674] RDX: 0000000000000000 RSI: 0000000000000000 RDI: > ffff9fd9418cfd80 > [ 138.594674] RBP: 0000000000000000 R08: 0000000000000000 R09: > 0000000000000000 > [ 138.594675] R10: 000000000000001f R11: 00000000000003a8 R12: > ffff9fd9420a0cc0 > [ 138.599381] > [ 138.607032] R13: 0000000000000000 R14: ffff9fd9418cfd90 R15: > ffff9fe87fa97f70 > [ 138.607033] FS: 0000000000000000(0000) GS:ffff9fe87fa80000(0000) > knlGS:0000000000000000 > [ 138.607035] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 138.611306] RAX: 0000000000000000 RBX: ffff9fd9e4187400 RCX: > dead000000000122 > [ 138.630049] CR2: 0000000000000098 CR3: 000000010371e004 CR4: > 00000000007706e0 > [ 138.630051] DR0: 0000000000000000 DR1: 0000000000000000 DR2: > 0000000000000000 > [ 138.630051] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: > 0000000000000400 > [ 138.630052] PKRU: 55555554 > [ 138.648797] RDX: ffff9fd98299bf00 RSI: ffffffffa8eac593 RDI: > 0000000000000000 > [ 138.654021] Call Trace: > [ 138.654023] <IRQ> > [ 138.654025] ? blk_stat_free_callback_rcu+0x30/0x30 > [ 138.659248] RBP: 00000000fffffffe R08: 0000000000000001 R09: > ffffffffa8dfdb00 > [ 138.666378] call_timer_fn+0x24/0xf0 > [ 138.673512] R10: ffff9fd94f701780 R11: 0000000000000001 R12: > ffff9fda40024800 > [ 138.680643] run_timer_softirq+0x1c7/0x3d0 > [ 138.680646] ? update_process_times+0xb0/0xc0 > [ 138.687777] R13: ffff9fda40024840 R14: ffff9fda40024800 R15: > 0000000000000000 > [ 138.689276] ? tick_sched_handle.isra.24+0x1f/0x60 > [ 138.696408] FS: 00007f473d28d700(0000) GS:ffff9fe87fa40000(0000) > knlGS:0000000000000000 > [ 138.704494] ? timerqueue_add+0x6f/0x80 > [ 138.704496] ? enqueue_hrtimer+0x2f/0x70 > [ 138.710242] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 138.717371] ? ktime_get+0x3b/0xa0 > [ 138.717373] __do_softirq+0xc6/0x285 > [ 138.724505] CR2: 00007f347b9e0590 CR3: 000000010c092006 CR4: > 00000000007706e0 > [ 138.731638] irq_exit_rcu+0xa6/0xc0 > [ 138.738771] DR0: 0000000000000000 DR1: 0000000000000000 DR2: > 0000000000000000 > [ 138.741482] sysvec_apic_timer_interrupt+0x6e/0x90 > [ 138.741485] </IRQ> > [ 138.748614] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: > 0000000000000400 > [ 138.751056] asm_sysvec_apic_timer_interrupt+0x12/0x20 > [ 138.753076] PKRU: 55555554 > [ 138.757948] RIP: 0010:cpuidle_enter_state+0xd6/0x350 > [ 138.765080] Call Trace: > [ 138.768652] Code: 49 89 c4 0f 1f 44 00 00 31 ff e8 05 05 98 ff 45 84 ff > 74 12 9c 58 f6 c4 02 0f 85 32 02 00 00 31 ff e8 ce a4 9e ff fb 45 85 f6 > <0f> 88 e0 00 00 00 49 63 d6 4c 2b 24 24 48 8d 04 52 48 8d 04 82 49 > [ 138.768653] RSP: 0018:ffffb4d7c01bbe80 EFLAGS: 00000202 > [ 138.768654] RAX: ffff9fe87faa7c00 RBX: 0000000000000002 RCX: > 000000000000001f > [ 138.775787] dm_setup_md_queue+0xbe/0xf0 [dm_mod] > [ 138.779883] RDX: 0000002041447a1c RSI: 000000002c3ddb16 RDI: > 0000000000000000 > [ 138.779884] RBP: ffffd4d7bf680588 R08: 0000000000000002 R09: > 0000000000027440 > [ 138.779884] R10: 000000a2559bce5c R11: ffff9fe87faa6944 R12: > 0000002041447a1c > [ 138.779885] R13: ffffffffaa4ca6a0 R14: 0000000000000002 R15: > 0000000000000000 > [ 138.784243] table_load+0x1c0/0x2e0 [dm_mod] > [ 138.791376] cpuidle_enter+0x29/0x40 > [ 138.796169] ? retrieve_status+0x1e0/0x1e0 [dm_mod] > [ 138.804251] do_idle+0x257/0x2a0 > [ 138.808092] ctl_ioctl+0x1ad/0x420 [dm_mod] > [ 138.812009] cpu_startup_entry+0x19/0x20 > [ 138.812011] start_secondary+0x116/0x150 > [ 138.817758] dm_ctl_ioctl+0xa/0x10 [dm_mod] > [ 138.821159] secondary_startup_64_no_verify+0xc2/0xcb > [ 138.821162] Modules linked in: > [ 138.824740] __x64_sys_ioctl+0x81/0xc0 > [ 138.831872] dm_service_time scsi_debug rpcsec_gss_krb5 auth_rpcgss > nfsv4 dns_resolver > [ 138.835366] do_syscall_64+0x37/0x80 > [ 138.842496] nfs lockd grace fscache netfs rfkill sunrpc vfat > [ 138.847290] entry_SYSCALL_64_after_hwframe+0x44/0xae > [ 138.849386] fat dm_multipath intel_rapl_msr intel_rapl_common > isst_if_common skx_edac x86_pkg_temp_thermal > [ 138.856519] RIP: 0033:0x7f473b4dd62b > [ 138.861650] intel_powerclamp coretemp kvm_intel kvm mgag200 > i2c_algo_bit drm_kms_helper irqbypass > [ 138.864362] Code: 0f 1e fa 48 8b 05 5d b8 2c 00 64 c7 00 26 00 00 00 48 > c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 > <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 2d b8 2c 00 f7 d8 64 89 01 48 > [ 138.869319] iTCO_wdt crct10dif_pclmul iTCO_vendor_support crc32_pclmul > ipmi_ssif syscopyarea sysfillrect > [ 138.871773] RSP: 002b:00007f473d28b428 EFLAGS: 00000206 > [ 138.890517] sysimgblt ghash_clmulni_intel fb_sys_fops rapl acpi_ipmi > drm ipmi_si intel_cstate mei_me > [ 138.895745] ORIG_RAX: 0000000000000010 > [ 138.902874] ipmi_devintf dax_pmem_compat intel_uncore mei i2c_i801 > pcspkr wmi_bmof nd_pmem > [ 138.907582] RAX: ffffffffffffffda RBX: 00007f473bf6b270 RCX: > 00007f473b4dd62b > [ 138.914713] device_dax lpc_ich ipmi_msghandler intel_pch_thermal > i2c_smbus nd_btt dax_pmem_core acpi_power_meter > [ 138.921848] RDX: 00007f472401dbf0 RSI: 00000000c138fd09 RDI: > 0000000000000005 > [ 138.928978] xfs libcrc32c sd_mod t10_pi sg ahci libahci libata nfit > [ 138.936111] RBP: 00007f473bfa6f83 R08: 00007f473d289180 R09: > 00007f473c1b5058 > [ 138.940373] tg3 megaraid_sas crc32c_intel libnvdimm wmi dm_mirror > dm_region_hash > [ 138.943956] R10: 0000000000000000 R11: 0000000000000206 R12: > 00007f472401dbf0 > [ 138.948834] dm_log dm_mod > [ 138.948836] CR2: 0000000000000098 > [ 138.948837] ---[ end trace 3235ef2b3e8a55ec ]--- > [ 138.952068] R13: 00007f472401dca0 R14: 0000000000000000 R15: > 00007f4724007530 > [ 138.959447] RIP: 0010:wb_timer_fn+0x37/0x320 > [ 138.961114] ---[ end trace 3235ef2b3e8a55ed ]--- > [ 138.965030] Code: 48 8b 5f 60 4c 8b 67 50 8b ab 98 00 00 00 8b 93 b8 00 > 00 00 8b 83 d8 00 00 00 4c 8b 6b 28 01 d5 01 c5 48 8b 43 60 48 8b 40 78 > <4c> 8b b0 98 00 00 00 4d 85 ed 0f 84 c0 00 00 00 48 83 7b 30 00 0f > [ 138.965032] RSP: 0018:ffffb4d7c0300e80 EFLAGS: 00010246 > [ 138.969219] kobject_add_internal failed for dm (error: -2 parent: dm-3) > [ 138.974269] RAX: 0000000000000000 RBX: ffff9fd941d74a00 RCX: > 0000000000000020 > [ 138.974271] RDX: 0000000000000000 RSI: 0000000000000000 RDI: > ffff9fd9418cfd80 > [ 138.974271] RBP: 0000000000000000 R08: 0000000000000000 R09: > 0000000000000000 > [ 138.974272] R10: 000000000000001f R11: 00000000000003a8 R12: > ffff9fd9420a0cc0 > [ 138.974273] R13: 0000000000000000 R14: ffff9fd9418cfd90 R15: > ffff9fe87fa97f70 > [ 138.975397] scsi 15:0:0:0: Direct-Access Linux scsi_debug > 0190 PQ: 0 ANSI: 7 > [ 138.975475] sd 15:0:0:0: Attached scsi generic sg1 type 0 > [ 138.975496] sd 15:0:0:0: Power-on or device reset occurred > [ 138.976516] sd 15:0:0:0: [sdc] Read Capacity(16) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 138.976518] sd 15:0:0:0: [sdc] Sense not available. > [ 138.976520] sd 15:0:0:0: [sdc] Read Capacity(10) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 138.976521] sd 15:0:0:0: [sdc] Sense not available. > [ 138.976524] sd 15:0:0:0: [sdc] 0 512-byte logical blocks: (0 B/0 B) > [ 138.976525] sd 15:0:0:0: [sdc] 0-byte physical blocks > [ 138.976526] sd 15:0:0:0: [sdc] Write Protect is off > [ 138.976527] sd 15:0:0:0: [sdc] Mode Sense: 00 00 00 00 > [ 138.976528] sd 15:0:0:0: [sdc] Asking for cache data failed > [ 138.976529] sd 15:0:0:0: [sdc] Assuming drive cache: write through > [ 138.977337] ------------[ cut here ]------------ > [ 138.981081] FS: 0000000000000000(0000) GS:ffff9fe87fa80000(0000) > knlGS:0000000000000000 > [ 138.981082] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 138.981083] CR2: 0000000000000098 CR3: 000000010371e004 CR4: > 00000000007706e0 > [ 138.981084] DR0: 0000000000000000 DR1: 0000000000000000 DR2: > 0000000000000000 > [ 138.988993] WARNING: CPU: 1 PID: 1161 at block/genhd.c:564 > del_gendisk+0x186/0x1c0 > [ 138.992562] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: > 0000000000000400 > [ 138.992563] PKRU: 55555554 > [ 138.992564] Kernel panic - not syncing: Fatal exception in interrupt > [ 139.493526] Kernel Offset: 0x27a00000 from 0xffffffff81000000 > (relocation range: 0xffffffff80000000-0xffffffffbfffffff) > [ 139.872338] ---[ end Kernel panic - not syncing: Fatal exception in > interrupt ]--- > > > > -- > Best Regards, > Yi Zhang > > > -- > Best Regards, > Yi Zhang -- Ming
