This would fail on another ARM64 node howzit-kernel as well with Jammy 5.15.0-27-generic But without the messages from mpt3sas_cm0 dmesg output: [ 2945.964263] LTP: starting read_all_sys (read_all -d /sys -q -r 3) [ 2947.922462] WARNING! power/level is deprecated; use power/control instead [ 2949.808190] bdi 7:6: the stable_pages_required attribute has been removed. Use the stable_writes queue attribute instead. [ 2949.931340] No UUID available providing old NGUID [ 2949.937332] No UUID available providing old NGUID [ 2949.937814] No UUID available providing old NGUID [ 2950.630986] Unable to handle kernel paging request at virtual address ffff80007cf003bf [ 2950.631121] Unable to handle kernel paging request at virtual address ffff80007cf003bf [ 2950.631160] Unable to handle kernel paging request at virtual address ffff80007cf003bf [ 2950.631168] Mem abort info: [ 2950.631172] ESR = 0x96000021 [ 2950.631175] EC = 0x25: DABT (current EL), IL = 32 bits [ 2950.631180] SET = 0, FnV = 0 [ 2950.631183] EA = 0, S1PTW = 0 [ 2950.631186] FSC = 0x21: alignment fault [ 2950.631190] Data abort info: [ 2950.631193] ISV = 0, ISS = 0x00000021 [ 2950.631196] CM = 0, WnR = 0 [ 2950.631199] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000400a02db7000 [ 2950.631204] [ffff80007cf003bf] pgd=10000800001b3003, p4d=10000800001b3003, pud=100008000c3dc003, pmd=100008007a118003, pte=0068000088230f0f [ 2950.631228] Internal error: Oops: 96000021 [#1] SMP [ 2950.631236] Modules linked in: arm_spe_pmu efi_pstore nls_iso8859_1 input_leds joydev acpi_ipmi ipmi_ssif arm_cmn xgene_hwmon arm_dmc620_pmu arm_dsu_pmu cppc_cpufreq acpi_tad sch_fq_codel dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua ipmi_devintf ipmi_msghandler ip_tables x_tables autofs4 btrfs blake2b_generic zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor xor_neon raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid cdc_ether hid usbnet mlx5_ib ib_uverbs ib_core uas usb_storage ast drm_vram_helper drm_ttm_helper ttm i2c_algo_bit drm_kms_helper crct10dif_ce ghash_ce syscopyarea sha2_ce sysfillrect sysimgblt sha256_arm64 fb_sys_fops mlx5_core sha1_ce cec rc_core nvme mlxfw drm xhci_pci psample nvme_core xhci_pci_renesas tls aes_neon_bs aes_neon_blk aes_ce_blk crypto_simd cryptd aes_ce_cipher [ 2950.631420] CPU: 5 PID: 46308 Comm: read_all Not tainted 5.15.0-27-generic #28-Ubuntu [ 2950.631426] Hardware name: WIWYNN Mt.Jade Server System B81.030Z1.0007/Mt.Jade Motherboard, BIOS 1.6.20210526 (SCP: 1.06.20210526) 2021/05/26 [ 2950.631430] pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 2950.631437] pc : __memcpy+0x168/0x260 [ 2950.631456] lr : memory_read_from_buffer+0x58/0x80 [ 2950.631470] sp : ffff8000776ebb60 [ 2950.631473] x29: ffff8000776ebb60 x28: ffff07fff4eb0000 x27: 0000000000000000 [ 2950.631485] x26: 0000000000000000 x25: 0000000000000000 x24: ffff07ff8ac2ae20 [ 2950.631495] x23: ffff8000776ebc60 x22: 00000000000003ff x21: ffff8000776ebbc8 [ 2950.631506] x20: 00000000000003ff x19: 00000000000003ff x18: 0000000000000000 [ 2950.631516] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 [ 2950.631526] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 [ 2950.631536] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 [ 2950.631546] x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 [ 2950.631556] x5 : ffff07fff26a6bff x4 : ffff80007cf003ff x3 : ffff07fff26a6b80 [ 2950.631566] x2 : ffffffffffffffef x1 : ffff80007cf003c0 x0 : ffff07fff26a6800 [ 2950.631576] Call trace: [ 2950.631579] __memcpy+0x168/0x260 [ 2950.631585] acpi_data_show+0x5c/0x90 [ 2950.631596] sysfs_kf_bin_read+0x78/0xa0 [ 2950.631607] kernfs_file_read_iter+0x9c/0x1a4 [ 2950.631613] kernfs_fop_read_iter+0x34/0x50 [ 2950.631619] new_sync_read+0xf0/0x184 [ 2950.631629] vfs_read+0x158/0x1f0 [ 2950.631635] ksys_read+0x74/0x100 [ 2950.631640] __arm64_sys_read+0x28/0x34 [ 2950.631645] invoke_syscall+0x78/0x100 [ 2950.631657] el0_svc_common.constprop.0+0x54/0x184 [ 2950.631664] do_el0_svc+0x34/0x9c [ 2950.631670] el0_svc+0x48/0x1b0 [ 2950.631681] el0t_64_sync_handler+0xa4/0x130 [ 2950.631686] el0t_64_sync+0x1a4/0x1a8 [ 2950.631697] Code: a984346c a9c4342c f1010042 54fffee8 (a97c3c8e) [ 2950.631703] ---[ end trace 36f3d711c3548ceb ]--- [ 2950.638926] Mem abort info: [ 2950.646846] Mem abort info: [ 2950.646852] ESR = 0x96000021 [ 2950.646855] EC = 0x25: DABT (current EL), IL = 32 bits [ 2950.646860] SET = 0, FnV = 0 [ 2950.646861] EA = 0, S1PTW = 0 [ 2950.646866] FSC = 0x21: alignment fault [ 2950.654786] ESR = 0x96000021 [ 2950.654792] EC = 0x25: DABT (current EL), IL = 32 bits [ 2950.654797] SET = 0, FnV = 0 [ 2950.654800] EA = 0, S1PTW = 0 [ 2950.657589] Data abort info: [ 2950.657593] ISV = 0, ISS = 0x00000021 [ 2950.657596] CM = 0, WnR = 0 [ 2950.657599] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000400a02db7000 [ 2950.660653] FSC = 0x21: alignment fault [ 2950.660660] Data abort info: [ 2950.665968] [ffff80007cf003bf] pgd=10000800001b3003, p4d=10000800001b3003, pud=100008000c3dc003, pmd=100008007a118003, pte=0068000088230f0f [ 2950.665986] Internal error: Oops: 96000021 [#2] SMP [ 2950.669036] ISV = 0, ISS = 0x00000021 [ 2950.672164] Modules linked in: arm_spe_pmu efi_pstore nls_iso8859_1 input_leds joydev acpi_ipmi ipmi_ssif arm_cmn xgene_hwmon [ 2950.676187] CM = 0, WnR = 0 [ 2950.679047] arm_dmc620_pmu [ 2950.682891] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000400a02db7000 [ 2950.685832] arm_dsu_pmu cppc_cpufreq acpi_tad sch_fq_codel dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua ipmi_devintf ipmi_msghandler ip_tables x_tables [ 2950.692551] [ffff80007cf003bf] pgd=10000800001b3003 [ 2950.705049] autofs4 btrfs blake2b_generic zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor xor_neon raid6_pq [ 2950.709943] , p4d=10000800001b3003 [ 2950.785464] libcrc32c raid1 raid0 multipath linear hid_generic usbhid cdc_ether hid usbnet mlx5_ib ib_uverbs ib_core uas usb_storage ast drm_vram_helper [ 2950.793312] , pud=100008000c3dc003 [ 2950.805985] drm_ttm_helper ttm i2c_algo_bit drm_kms_helper crct10dif_ce ghash_ce syscopyarea sha2_ce sysfillrect sysimgblt sha256_arm64 fb_sys_fops mlx5_core sha1_ce cec rc_core nvme mlxfw [ 2950.812965] , pmd=100008007a118003 [ 2950.816608] drm xhci_pci psample nvme_core xhci_pci_renesas tls aes_neon_bs aes_neon_blk aes_ce_blk crypto_simd cryptd aes_ce_cipher [ 2950.816632] CPU: 45 PID: 46310 Comm: read_all Tainted: G D 5.15.0-27-generic #28-Ubuntu [ 2950.821415] , pte=0068000088230f0f [ 2950.824713] Hardware name: WIWYNN Mt.Jade Server System B81.030Z1.0007/Mt.Jade Motherboard, BIOS 1.6.20210526 (SCP: 1.06.20210526) 2021/05/26 [ 2950.824720] pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 2950.824725] pc : __memcpy+0x168/0x260 [ 2950.838980] lr : memory_read_from_buffer+0x58/0x80 [ 2950.838994] sp : ffff80007ccd3b40 [ 2950.838996] x29: ffff80007ccd3b40 x28: ffff07fff4eb3f00 x27: 0000000000000000 [ 2951.210015] x26: 0000000000000000 x25: 0000000000000000 x24: ffff0800eec5e920 [ 2951.217141] x23: ffff80007ccd3c40 x22: 00000000000003ff x21: ffff80007ccd3ba8 [ 2951.224267] x20: 00000000000003ff x19: 00000000000003ff x18: 0000000000000000 [ 2951.231393] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 [ 2951.238518] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 [ 2951.245643] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 [ 2951.252767] x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 [ 2951.259892] x5 : ffff07ff8d9793ff x4 : ffff80007cf003ff x3 : ffff07ff8d979380 [ 2951.267017] x2 : ffffffffffffffef x1 : ffff80007cf003c0 x0 : ffff07ff8d979000 [ 2951.274143] Call trace: [ 2951.276579] __memcpy+0x168/0x260 [ 2951.279886] acpi_data_show+0x5c/0x90 [ 2951.283542] sysfs_kf_bin_read+0x78/0xa0 [ 2951.287459] kernfs_file_read_iter+0x9c/0x1a4 [ 2951.291806] kernfs_fop_read_iter+0x34/0x50 [ 2951.295980] new_sync_read+0xf0/0x184 [ 2951.299636] vfs_read+0x158/0x1f0 [ 2951.302941] ksys_read+0x74/0x100 [ 2951.306246] __arm64_sys_read+0x28/0x34 [ 2951.310071] invoke_syscall+0x78/0x100 [ 2951.313816] el0_svc_common.constprop.0+0x54/0x184 [ 2951.318598] do_el0_svc+0x34/0x9c [ 2951.321904] el0_svc+0x48/0x1b0 [ 2951.325038] el0t_64_sync_handler+0xa4/0x130 [ 2951.329298] el0t_64_sync+0x1a4/0x1a8 [ 2951.332954] Code: a984346c a9c4342c f1010042 54fffee8 (a97c3c8e) [ 2951.339037] ---[ end trace 36f3d711c3548cec ]--- [ 2951.367133] Internal error: Oops: 96000021 [#3] SMP [ 2951.372015] Modules linked in: arm_spe_pmu efi_pstore nls_iso8859_1 input_leds joydev acpi_ipmi ipmi_ssif arm_cmn xgene_hwmon arm_dmc620_pmu arm_dsu_pmu cppc_cpufreq acpi_tad sch_fq_codel dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua ipmi_devintf ipmi_msghandler ip_tables x_tables autofs4 btrfs blake2b_generic zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor xor_neon raid6_pq libcrc32c raid1 raid0 multipath linear hid_generic usbhid cdc_ether hid usbnet mlx5_ib ib_uverbs ib_core uas usb_storage ast drm_vram_helper drm_ttm_helper ttm i2c_algo_bit drm_kms_helper crct10dif_ce ghash_ce syscopyarea sha2_ce sysfillrect sysimgblt sha256_arm64 fb_sys_fops mlx5_core sha1_ce cec rc_core nvme mlxfw drm xhci_pci psample nvme_core xhci_pci_renesas tls aes_neon_bs aes_neon_blk aes_ce_blk crypto_simd cryptd aes_ce_cipher [ 2951.447652] CPU: 8 PID: 46309 Comm: read_all Tainted: G D 5.15.0-27-generic #28-Ubuntu [ 2951.456864] Hardware name: WIWYNN Mt.Jade Server System B81.030Z1.0007/Mt.Jade Motherboard, BIOS 1.6.20210526 (SCP: 1.06.20210526) 2021/05/26 [ 2951.469545] pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 2951.476498] pc : __memcpy+0x168/0x260 [ 2951.480168] lr : memory_read_from_buffer+0x58/0x80 [ 2951.484961] sp : ffff800050223a50 [ 2951.488265] x29: ffff800050223a50 x28: ffff07fff4eb4ec0 x27: 0000000000000000 [ 2951.495392] x26: 0000000000000000 x25: 0000000000000000 x24: ffff07ff8aca2920 [ 2951.502518] x23: ffff800050223b50 x22: 00000000000003ff x21: ffff800050223ab8 [ 2951.509644] x20: 00000000000003ff x19: 00000000000003ff x18: 0000000000000000 [ 2951.516770] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 [ 2951.523896] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 [ 2951.531021] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 [ 2951.538146] x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 [ 2951.545272] x5 : ffff3fff9290cfff x4 : ffff80007cf003ff x3 : ffff3fff9290cf80 [ 2951.552397] x2 : ffffffffffffffef x1 : ffff80007cf003c0 x0 : ffff3fff9290cc00 [ 2951.559524] Call trace: [ 2951.561960] __memcpy+0x168/0x260 [ 2951.565266] acpi_data_show+0x5c/0x90 [ 2951.568927] sysfs_kf_bin_read+0x78/0xa0 [ 2951.572847] kernfs_file_read_iter+0x9c/0x1a4 [ 2951.577194] kernfs_fop_read_iter+0x34/0x50 [ 2951.581367] new_sync_read+0xf0/0x184 [ 2951.585026] vfs_read+0x158/0x1f0 [ 2951.588333] ksys_read+0x74/0x100 [ 2951.591639] __arm64_sys_read+0x28/0x34 [ 2951.595464] invoke_syscall+0x78/0x100 [ 2951.599210] el0_svc_common.constprop.0+0x54/0x184 [ 2951.603992] do_el0_svc+0x34/0x9c [ 2951.607298] el0_svc+0x48/0x1b0 [ 2951.610437] el0t_64_sync_handler+0xa4/0x130 [ 2951.614697] el0t_64_sync+0x1a4/0x1a8 [ 2951.618355] Code: a984346c a9c4342c f1010042 54fffee8 (a97c3c8e) [ 2951.624441] ---[ end trace 36f3d711c3548ced ]---