Public bug reported: Something is broken in mpt3sas_scsi subsystem, and it seems it affects other storage related systems too eg Bug #1970074.
excerpt from dmesg: [ 1.053769] mpt2sas_cm0: sending port enable !! [ 1.054273] ================================================================================ [ 1.054505] UBSAN: array-index-out-of-bounds in /build/linux-D15vQj/linux-6.5.0/drivers/scsi/mpt3sas/mpt3sas_scsih.c:4667:12 [ 1.054962] index 1 is out of range for type 'MPI2_EVENT_SAS_TOPO_PHY_ENTRY [1]' [ 1.055048] mpt2sas_cm0: hba_port entry: 00000000ad6fd214, port: 255 is added to hba_port list [ 1.055193] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.5.0-9-generic #9-Ubuntu [ 1.055597] ================================================================================ [ 1.055667] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B360M-ITX, BIOS P4.30 07/21/2020 [ 1.055907] UBSAN: array-index-out-of-bounds in /build/linux-D15vQj/linux-6.5.0/drivers/scsi/mpt3sas/mpt3sas_scsih.c:6810:36 [ 1.056390] Call Trace: [ 1.056901] index 1 is out of range for type 'MPI2_SAS_IO_UNIT0_PHY_DATA [1]' [ 1.057199] <IRQ> [ 1.057201] dump_stack_lvl+0x48/0x70 [ 1.058006] dump_stack+0x10/0x20 [ 1.058271] __ubsan_handle_out_of_bounds+0xc6/0x110 [ 1.058535] _scsih_check_topo_delete_events+0x2dc/0x350 [mpt3sas] [ 1.058818] mpt3sas_scsih_event_callback+0x180/0x630 [mpt3sas] [ 1.059099] _base_async_event.isra.0+0x73/0x190 [mpt3sas] [ 1.059376] _base_process_reply_queue+0x3b3/0x720 [mpt3sas] [ 1.059646] _base_interrupt+0x4e/0x70 [mpt3sas] [ 1.059910] __handle_irq_event_percpu+0x4c/0x1b0 [ 1.060158] handle_irq_event+0x39/0x80 [ 1.060399] handle_edge_irq+0x8c/0x250 [ 1.060633] __common_interrupt+0x53/0x110 [ 1.060864] common_interrupt+0x9f/0xb0 [ 1.061122] </IRQ> [ 1.061338] <TASK> [ 1.061550] asm_common_interrupt+0x27/0x40 [ 1.061763] RIP: 0010:cpuidle_enter_state+0xda/0x730 [ 1.061975] Code: 11 04 ff e8 a8 f5 ff ff 8b 53 04 49 89 c7 0f 1f 44 00 00 31 ff e8 26 bb 02 ff 80 7d d0 00 0f 85 61 02 00 00 fb 0f 1f 44 00 00 <45> 85 f6 0f 88 f7 01 00 00 4d 63 ee 49 83 fd 0a 0f 83 17 05 00 00 [ 1.062629] RSP: 0018:ffffffff96603db8 EFLAGS: 00000246 [ 1.062855] RAX: 0000000000000000 RBX: ffffcc1c7fc00100 RCX: 0000000000000000 [ 1.063084] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 1.063308] RBP: ffffffff96603e08 R08: 0000000000000000 R09: 0000000000000000 [ 1.063528] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff968d24a0 [ 1.063743] R13: 0000000000000006 R14: 0000000000000006 R15: 000000003ed6dc01 [ 1.063956] ? cpuidle_enter_state+0xca/0x730 [ 1.064164] ? finish_task_switch.isra.0+0x89/0x2b0 [ 1.064371] cpuidle_enter+0x2e/0x50 [ 1.064573] call_cpuidle+0x23/0x60 [ 1.064769] cpuidle_idle_call+0x11d/0x190 [ 1.064978] do_idle+0x82/0xf0 [ 1.065205] cpu_startup_entry+0x1d/0x20 [ 1.065382] rest_init+0xde/0x100 [ 1.065559] ? acpi_enable_subsystem+0xe6/0x2a0 [ 1.065736] ? static_key_disable+0x1f/0x30 [ 1.065908] arch_call_rest_init+0xe/0x30 [ 1.066081] start_kernel+0x34f/0x440 [ 1.066253] x86_64_start_reservations+0x18/0x30 [ 1.066426] x86_64_start_kernel+0xbf/0x110 [ 1.066595] secondary_startup_64_no_verify+0x17e/0x18b [ 1.066767] </TASK> [ 1.066932] ================================================================================ [ 1.066932] CPU: 4 PID: 10 Comm: kworker/u12:0 Not tainted 6.5.0-9-generic #9-Ubuntu [ 1.067105] ================================================================================ [ 1.067280] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B360M-ITX, BIOS P4.30 07/21/2020 [ 1.067459] UBSAN: array-index-out-of-bounds in /build/linux-D15vQj/linux-6.5.0/drivers/scsi/mpt3sas/mpt3sas_scsih.c:4670:32 [ 1.067826] Workqueue: fw_event_mpt2sas0 _firmware_event_work [mpt3sas] [ 1.068219] index 3 is out of range for type 'MPI2_EVENT_SAS_TOPO_PHY_ENTRY [1]' [ 1.068220] Call Trace: [ 1.069085] <TASK> [ 1.069283] dump_stack_lvl+0x48/0x70 [ 1.069481] dump_stack+0x10/0x20 [ 1.069665] __ubsan_handle_out_of_bounds+0xc6/0x110 [ 1.069849] _scsih_sas_host_add+0x66e/0x700 [mpt3sas] [ 1.070047] _mpt3sas_fw_work+0x69f/0xbb0 [mpt3sas] [ 1.070243] ? finish_task_switch.isra.0+0x89/0x2b0 [ 1.070428] ? __schedule+0x2d4/0x770 [ 1.070609] _firmware_event_work+0x16/0x20 [mpt3sas] [ 1.070804] process_one_work+0x220/0x440 [ 1.070984] worker_thread+0x4d/0x3f0 [ 1.071162] ? __pfx_worker_thread+0x10/0x10 [ 1.071340] kthread+0xef/0x120 [ 1.071518] ? __pfx_kthread+0x10/0x10 [ 1.071696] ret_from_fork+0x44/0x70 [ 1.071874] ? __pfx_kthread+0x10/0x10 [ 1.072053] ret_from_fork_asm+0x1b/0x30 [ 1.072231] </TASK> [ 1.072406] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.5.0-9-generic #9-Ubuntu [ 1.072407] ================================================================================ [ 1.072780] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B360M-ITX, BIOS P4.30 07/21/2020 [ 1.073200] Call Trace: [ 1.073394] <IRQ> [ 1.073585] dump_stack_lvl+0x48/0x70 [ 1.073778] dump_stack+0x10/0x20 [ 1.073951] mpt2sas_cm0: host_add: handle(0x0001), sas_addr(0x500605b006eeb390), phys(8) [ 1.073965] __ubsan_handle_out_of_bounds+0xc6/0x110 [ 1.074345] _scsih_check_topo_delete_events+0x2f0/0x350 [mpt3sas] [ 1.074550] mpt3sas_scsih_event_callback+0x180/0x630 [mpt3sas] [ 1.074747] _base_async_event.isra.0+0x73/0x190 [mpt3sas] [ 1.074939] _base_process_reply_queue+0x3b3/0x720 [mpt3sas] [ 1.075125] _base_interrupt+0x4e/0x70 [mpt3sas] [ 1.075308] __handle_irq_event_percpu+0x4c/0x1b0 [ 1.075475] handle_irq_event+0x39/0x80 [ 1.075638] handle_edge_irq+0x8c/0x250 [ 1.075800] __common_interrupt+0x53/0x110 [ 1.075965] common_interrupt+0x9f/0xb0 [ 1.076129] </IRQ> [ 1.076291] <TASK> [ 1.076451] asm_common_interrupt+0x27/0x40 [ 1.076613] RIP: 0010:cpuidle_enter_state+0xda/0x730 [ 1.076776] Code: 11 04 ff e8 a8 f5 ff ff 8b 53 04 49 89 c7 0f 1f 44 00 00 31 ff e8 26 bb 02 ff 80 7d d0 00 0f 85 61 02 00 00 fb 0f 1f 44 00 00 <45> 85 f6 0f 88 f7 01 00 00 4d 63 ee 49 83 fd 0a 0f 83 17 05 00 00 [ 1.077339] RSP: 0018:ffffffff96603db8 EFLAGS: 00000246 [ 1.077525] RAX: 0000000000000000 RBX: ffffcc1c7fc00100 RCX: 0000000000000000 [ 1.077716] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 1.077906] RBP: ffffffff96603e08 R08: 0000000000000000 R09: 0000000000000000 [ 1.078096] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff968d24a0 [ 1.078286] R13: 0000000000000006 R14: 0000000000000006 R15: 000000003ed6dc01 [ 1.078479] ? cpuidle_enter_state+0xca/0x730 [ 1.078673] ? finish_task_switch.isra.0+0x89/0x2b0 [ 1.078868] cpuidle_enter+0x2e/0x50 [ 1.079063] call_cpuidle+0x23/0x60 [ 1.079254] cpuidle_idle_call+0x11d/0x190 [ 1.079442] do_idle+0x82/0xf0 [ 1.079623] cpu_startup_entry+0x1d/0x20 [ 1.079797] rest_init+0xde/0x100 [ 1.079971] ? acpi_enable_subsystem+0xe6/0x2a0 [ 1.080148] ? static_key_disable+0x1f/0x30 [ 1.080327] arch_call_rest_init+0xe/0x30 [ 1.080506] start_kernel+0x34f/0x440 [ 1.080681] x86_64_start_reservations+0x18/0x30 [ 1.080853] x86_64_start_kernel+0xbf/0x110 [ 1.081057] secondary_startup_64_no_verify+0x17e/0x18b [ 1.081228] </TASK> Ubuntu 6.5.0-9.9-generic 6.5.3 lspci: 00:00.0 Host bridge: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers (rev 07) 00:01.0 PCI bridge: Intel Corporation 6th-10th Gen Core Processor PCIe Controller (x16) (rev 07) 00:02.0 VGA compatible controller: Intel Corporation CoffeeLake-S GT2 [UHD Graphics 630] 00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10) 00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10) 00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10) 00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10) 00:17.0 SATA controller: Intel Corporation Cannon Lake PCH SATA AHCI Controller (rev 10) 00:1b.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #21 (rev f0) 00:1f.0 ISA bridge: Intel Corporation Device a308 (rev 10) 00:1f.3 Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10) 00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10) 00:1f.5 Serial bus controller: Intel Corporation Cannon Lake PCH SPI Controller (rev 10) 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (7) I219-V (rev 10) 01:00.0 Serial Attached SCSI controller: Broadcom / LSI SAS2308 PCI-Express Fusion-MPT SAS-2 (rev 05) 02:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller PM9A1/PM9A3/980PRO full dmesg log attached. Despite this, SAS controller seem to work fine but this is my doubt it is stable enough to not do any incidental data corruption. ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Attachment added: "dmesg output" https://bugs.launchpad.net/bugs/2039384/+attachment/5709602/+files/dmesg_15102023.log -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2039384 Title: UBSAN: array-index-out-of-bounds in /build/linux-D15vQj/linux-6.5.0/drivers/scsi/mpt3sas/mpt3sas_scsih.c:4667:12 Status in linux package in Ubuntu: Incomplete Bug description: Something is broken in mpt3sas_scsi subsystem, and it seems it affects other storage related systems too eg Bug #1970074. excerpt from dmesg: [ 1.053769] mpt2sas_cm0: sending port enable !! [ 1.054273] ================================================================================ [ 1.054505] UBSAN: array-index-out-of-bounds in /build/linux-D15vQj/linux-6.5.0/drivers/scsi/mpt3sas/mpt3sas_scsih.c:4667:12 [ 1.054962] index 1 is out of range for type 'MPI2_EVENT_SAS_TOPO_PHY_ENTRY [1]' [ 1.055048] mpt2sas_cm0: hba_port entry: 00000000ad6fd214, port: 255 is added to hba_port list [ 1.055193] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.5.0-9-generic #9-Ubuntu [ 1.055597] ================================================================================ [ 1.055667] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B360M-ITX, BIOS P4.30 07/21/2020 [ 1.055907] UBSAN: array-index-out-of-bounds in /build/linux-D15vQj/linux-6.5.0/drivers/scsi/mpt3sas/mpt3sas_scsih.c:6810:36 [ 1.056390] Call Trace: [ 1.056901] index 1 is out of range for type 'MPI2_SAS_IO_UNIT0_PHY_DATA [1]' [ 1.057199] <IRQ> [ 1.057201] dump_stack_lvl+0x48/0x70 [ 1.058006] dump_stack+0x10/0x20 [ 1.058271] __ubsan_handle_out_of_bounds+0xc6/0x110 [ 1.058535] _scsih_check_topo_delete_events+0x2dc/0x350 [mpt3sas] [ 1.058818] mpt3sas_scsih_event_callback+0x180/0x630 [mpt3sas] [ 1.059099] _base_async_event.isra.0+0x73/0x190 [mpt3sas] [ 1.059376] _base_process_reply_queue+0x3b3/0x720 [mpt3sas] [ 1.059646] _base_interrupt+0x4e/0x70 [mpt3sas] [ 1.059910] __handle_irq_event_percpu+0x4c/0x1b0 [ 1.060158] handle_irq_event+0x39/0x80 [ 1.060399] handle_edge_irq+0x8c/0x250 [ 1.060633] __common_interrupt+0x53/0x110 [ 1.060864] common_interrupt+0x9f/0xb0 [ 1.061122] </IRQ> [ 1.061338] <TASK> [ 1.061550] asm_common_interrupt+0x27/0x40 [ 1.061763] RIP: 0010:cpuidle_enter_state+0xda/0x730 [ 1.061975] Code: 11 04 ff e8 a8 f5 ff ff 8b 53 04 49 89 c7 0f 1f 44 00 00 31 ff e8 26 bb 02 ff 80 7d d0 00 0f 85 61 02 00 00 fb 0f 1f 44 00 00 <45> 85 f6 0f 88 f7 01 00 00 4d 63 ee 49 83 fd 0a 0f 83 17 05 00 00 [ 1.062629] RSP: 0018:ffffffff96603db8 EFLAGS: 00000246 [ 1.062855] RAX: 0000000000000000 RBX: ffffcc1c7fc00100 RCX: 0000000000000000 [ 1.063084] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 1.063308] RBP: ffffffff96603e08 R08: 0000000000000000 R09: 0000000000000000 [ 1.063528] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff968d24a0 [ 1.063743] R13: 0000000000000006 R14: 0000000000000006 R15: 000000003ed6dc01 [ 1.063956] ? cpuidle_enter_state+0xca/0x730 [ 1.064164] ? finish_task_switch.isra.0+0x89/0x2b0 [ 1.064371] cpuidle_enter+0x2e/0x50 [ 1.064573] call_cpuidle+0x23/0x60 [ 1.064769] cpuidle_idle_call+0x11d/0x190 [ 1.064978] do_idle+0x82/0xf0 [ 1.065205] cpu_startup_entry+0x1d/0x20 [ 1.065382] rest_init+0xde/0x100 [ 1.065559] ? acpi_enable_subsystem+0xe6/0x2a0 [ 1.065736] ? static_key_disable+0x1f/0x30 [ 1.065908] arch_call_rest_init+0xe/0x30 [ 1.066081] start_kernel+0x34f/0x440 [ 1.066253] x86_64_start_reservations+0x18/0x30 [ 1.066426] x86_64_start_kernel+0xbf/0x110 [ 1.066595] secondary_startup_64_no_verify+0x17e/0x18b [ 1.066767] </TASK> [ 1.066932] ================================================================================ [ 1.066932] CPU: 4 PID: 10 Comm: kworker/u12:0 Not tainted 6.5.0-9-generic #9-Ubuntu [ 1.067105] ================================================================================ [ 1.067280] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B360M-ITX, BIOS P4.30 07/21/2020 [ 1.067459] UBSAN: array-index-out-of-bounds in /build/linux-D15vQj/linux-6.5.0/drivers/scsi/mpt3sas/mpt3sas_scsih.c:4670:32 [ 1.067826] Workqueue: fw_event_mpt2sas0 _firmware_event_work [mpt3sas] [ 1.068219] index 3 is out of range for type 'MPI2_EVENT_SAS_TOPO_PHY_ENTRY [1]' [ 1.068220] Call Trace: [ 1.069085] <TASK> [ 1.069283] dump_stack_lvl+0x48/0x70 [ 1.069481] dump_stack+0x10/0x20 [ 1.069665] __ubsan_handle_out_of_bounds+0xc6/0x110 [ 1.069849] _scsih_sas_host_add+0x66e/0x700 [mpt3sas] [ 1.070047] _mpt3sas_fw_work+0x69f/0xbb0 [mpt3sas] [ 1.070243] ? finish_task_switch.isra.0+0x89/0x2b0 [ 1.070428] ? __schedule+0x2d4/0x770 [ 1.070609] _firmware_event_work+0x16/0x20 [mpt3sas] [ 1.070804] process_one_work+0x220/0x440 [ 1.070984] worker_thread+0x4d/0x3f0 [ 1.071162] ? __pfx_worker_thread+0x10/0x10 [ 1.071340] kthread+0xef/0x120 [ 1.071518] ? __pfx_kthread+0x10/0x10 [ 1.071696] ret_from_fork+0x44/0x70 [ 1.071874] ? __pfx_kthread+0x10/0x10 [ 1.072053] ret_from_fork_asm+0x1b/0x30 [ 1.072231] </TASK> [ 1.072406] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.5.0-9-generic #9-Ubuntu [ 1.072407] ================================================================================ [ 1.072780] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B360M-ITX, BIOS P4.30 07/21/2020 [ 1.073200] Call Trace: [ 1.073394] <IRQ> [ 1.073585] dump_stack_lvl+0x48/0x70 [ 1.073778] dump_stack+0x10/0x20 [ 1.073951] mpt2sas_cm0: host_add: handle(0x0001), sas_addr(0x500605b006eeb390), phys(8) [ 1.073965] __ubsan_handle_out_of_bounds+0xc6/0x110 [ 1.074345] _scsih_check_topo_delete_events+0x2f0/0x350 [mpt3sas] [ 1.074550] mpt3sas_scsih_event_callback+0x180/0x630 [mpt3sas] [ 1.074747] _base_async_event.isra.0+0x73/0x190 [mpt3sas] [ 1.074939] _base_process_reply_queue+0x3b3/0x720 [mpt3sas] [ 1.075125] _base_interrupt+0x4e/0x70 [mpt3sas] [ 1.075308] __handle_irq_event_percpu+0x4c/0x1b0 [ 1.075475] handle_irq_event+0x39/0x80 [ 1.075638] handle_edge_irq+0x8c/0x250 [ 1.075800] __common_interrupt+0x53/0x110 [ 1.075965] common_interrupt+0x9f/0xb0 [ 1.076129] </IRQ> [ 1.076291] <TASK> [ 1.076451] asm_common_interrupt+0x27/0x40 [ 1.076613] RIP: 0010:cpuidle_enter_state+0xda/0x730 [ 1.076776] Code: 11 04 ff e8 a8 f5 ff ff 8b 53 04 49 89 c7 0f 1f 44 00 00 31 ff e8 26 bb 02 ff 80 7d d0 00 0f 85 61 02 00 00 fb 0f 1f 44 00 00 <45> 85 f6 0f 88 f7 01 00 00 4d 63 ee 49 83 fd 0a 0f 83 17 05 00 00 [ 1.077339] RSP: 0018:ffffffff96603db8 EFLAGS: 00000246 [ 1.077525] RAX: 0000000000000000 RBX: ffffcc1c7fc00100 RCX: 0000000000000000 [ 1.077716] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 1.077906] RBP: ffffffff96603e08 R08: 0000000000000000 R09: 0000000000000000 [ 1.078096] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff968d24a0 [ 1.078286] R13: 0000000000000006 R14: 0000000000000006 R15: 000000003ed6dc01 [ 1.078479] ? cpuidle_enter_state+0xca/0x730 [ 1.078673] ? finish_task_switch.isra.0+0x89/0x2b0 [ 1.078868] cpuidle_enter+0x2e/0x50 [ 1.079063] call_cpuidle+0x23/0x60 [ 1.079254] cpuidle_idle_call+0x11d/0x190 [ 1.079442] do_idle+0x82/0xf0 [ 1.079623] cpu_startup_entry+0x1d/0x20 [ 1.079797] rest_init+0xde/0x100 [ 1.079971] ? acpi_enable_subsystem+0xe6/0x2a0 [ 1.080148] ? static_key_disable+0x1f/0x30 [ 1.080327] arch_call_rest_init+0xe/0x30 [ 1.080506] start_kernel+0x34f/0x440 [ 1.080681] x86_64_start_reservations+0x18/0x30 [ 1.080853] x86_64_start_kernel+0xbf/0x110 [ 1.081057] secondary_startup_64_no_verify+0x17e/0x18b [ 1.081228] </TASK> Ubuntu 6.5.0-9.9-generic 6.5.3 lspci: 00:00.0 Host bridge: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers (rev 07) 00:01.0 PCI bridge: Intel Corporation 6th-10th Gen Core Processor PCIe Controller (x16) (rev 07) 00:02.0 VGA compatible controller: Intel Corporation CoffeeLake-S GT2 [UHD Graphics 630] 00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10) 00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10) 00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10) 00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10) 00:17.0 SATA controller: Intel Corporation Cannon Lake PCH SATA AHCI Controller (rev 10) 00:1b.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #21 (rev f0) 00:1f.0 ISA bridge: Intel Corporation Device a308 (rev 10) 00:1f.3 Audio device: Intel Corporation Cannon Lake PCH cAVS (rev 10) 00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10) 00:1f.5 Serial bus controller: Intel Corporation Cannon Lake PCH SPI Controller (rev 10) 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (7) I219-V (rev 10) 01:00.0 Serial Attached SCSI controller: Broadcom / LSI SAS2308 PCI-Express Fusion-MPT SAS-2 (rev 05) 02:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller PM9A1/PM9A3/980PRO full dmesg log attached. Despite this, SAS controller seem to work fine but this is my doubt it is stable enough to not do any incidental data corruption. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2039384/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp