Hello,
I have a Proxmox server with some SAS cards:
# lspci | grep SAS
51:00.0 Serial Attached SCSI controller: Broadcom / LSI SAS2308 PCI-Express Fusion-MPT SAS-2 (rev 05)
8a:00.0 Serial Attached SCSI controller: Broadcom / LSI SAS3416 Fusion-MPT Tri-Mode I/O Controller Chip (IOC) (rev 01)
The SAS2 card is actually a 9207-8e where I connect my tape drive. I successfully do backups using PBS on my tapes and it works well since several months. However, recently (maybe 2, or 3 weeks ago, I cannot point it out more exactly) there was a Proxmox or Linux Kernel update, and since then, when I switch on the (external) tape drive, my dmesg looks like this:
the "cm0" failure continues for several thousand lines. However, the tape drive works and PBS successfully writes my backups to tape.
I have not changed my hardware since a few months, and also not the tape drive; further, I have not touched any configuration files. I 100% definitely know that up until ~3 weeks ago it was working flawlessly without any dmesg error entries, but now these above errors appear.
I wonder:
a) does someone know what these mean? is it something to worry or should I just ignore it?
b) how to fix them?
Anyone else has similar entries?
I have a Proxmox server with some SAS cards:
# lspci | grep SAS
51:00.0 Serial Attached SCSI controller: Broadcom / LSI SAS2308 PCI-Express Fusion-MPT SAS-2 (rev 05)
8a:00.0 Serial Attached SCSI controller: Broadcom / LSI SAS3416 Fusion-MPT Tri-Mode I/O Controller Chip (IOC) (rev 01)
The SAS2 card is actually a 9207-8e where I connect my tape drive. I successfully do backups using PBS on my tapes and it works well since several months. However, recently (maybe 2, or 3 weeks ago, I cannot point it out more exactly) there was a Proxmox or Linux Kernel update, and since then, when I switch on the (external) tape drive, my dmesg looks like this:
Code:
[Mon May 25 21:08:23 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:08:23 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:08:24 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:08:24 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:08:25 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:08:25 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:08:26 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:08:26 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:08:27 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:08:27 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:08:28 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:08:28 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:08:29 2026] mpt2sas_cm0: detecting: handle(0x0009),
sas_address(0x50014380353cba70), phy(3)
[Mon May 25 21:08:29 2026] mpt2sas_cm0: REPORT_LUNS: handle(0x0009),
retries(0)
[Mon May 25 21:08:29 2026] TEST_UNIT_READY: handle(0x0009) lun(0)
[Mon May 25 21:08:29 2026] mpt2sas_cm0: detecting: handle(0x0009),
sas_address(0x50014380353cba70), phy(3)
[Mon May 25 21:08:29 2026] mpt2sas_cm0: REPORT_LUNS: handle(0x0009),
retries(0)
[Mon May 25 21:08:29 2026] TEST_UNIT_READY: handle(0x0009) lun(0)
[Mon May 25 21:08:29 2026] START_UNIT: handle(0x0009), lun(0)
[Mon May 25 21:08:59 2026] mpt2sas_cm0: In func: _scsi_send_scsi_io
[Mon May 25 21:08:59 2026] mpt2sas_cm0: Command Timeout
[Mon May 25 21:08:59 2026] mf:
[Mon May 25 21:08:59 2026] 00000009
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026] fe5ecd60
[Mon May 25 21:08:59 2026] 00600000
[Mon May 25 21:08:59 2026] 00000018
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026]
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026] 00000006
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026]
[Mon May 25 21:08:59 2026] 0000011b
[Mon May 25 21:08:59 2026] 00000001
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026]
[Mon May 25 21:08:59 2026] d3000000
[Mon May 25 21:08:59 2026] ffffffff
[Mon May 25 21:08:59 2026] ffffffff
[Mon May 25 21:08:59 2026] 00000000
[Mon May 25 21:08:59 2026] issue target reset: handle (0x0009)
[Mon May 25 21:08:59 2026] mpt2sas_cm0: log_info(0x31140000): originator(PL), code(0x14), sub_code(0x0000)
[Mon May 25 21:08:59 2026] target reset completed: handle (0x0009)
[Mon May 25 21:08:59 2026] issue retry: handle (0x0009)
[Mon May 25 21:08:59 2026] TEST_UNIT_READY: handle(0x0009) lun(0)
[Mon May 25 21:08:59 2026] mpt2sas_cm0: detecting: handle(0x0009),
sas_address(0x50014380353cba70), phy(3)
[Mon May 25 21:08:59 2026] mpt2sas_cm0: REPORT_LUNS: handle(0x0009),
retries(0)
[Mon May 25 21:08:59 2026] TEST_UNIT_READY: handle(0x0009) lun(0)
[Mon May 25 21:08:59 2026] START_UNIT: handle(0x0009), lun(0)
[Mon May 25 21:09:29 2026] mpt2sas_cm0: In func: _scsi_send_scsi_io
[Mon May 25 21:09:29 2026] mpt2sas_cm0: Command Timeout
[Mon May 25 21:09:29 2026] mf:
[Mon May 25 21:09:29 2026] 00000009
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026] fe5ecd60
[Mon May 25 21:09:29 2026] 00600000
[Mon May 25 21:09:29 2026] 00000018
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026]
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026] 00000006
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026]
[Mon May 25 21:09:29 2026] 0000011b
[Mon May 25 21:09:29 2026] 00000001
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026]
[Mon May 25 21:09:29 2026] d3000000
[Mon May 25 21:09:29 2026] ffffffff
[Mon May 25 21:09:29 2026] ffffffff
[Mon May 25 21:09:29 2026] 00000000
[Mon May 25 21:09:29 2026] issue target reset: handle (0x0009)
[Mon May 25 21:09:29 2026] mpt2sas_cm0: log_info(0x31140000): originator(PL), code(0x14), sub_code(0x0000)
[Mon May 25 21:09:29 2026] target reset completed: handle (0x0009)
[Mon May 25 21:09:29 2026] issue retry: handle (0x0009)
[Mon May 25 21:09:29 2026] TEST_UNIT_READY: handle(0x0009) lun(0)
[Mon May 25 21:09:29 2026] mpt2sas_cm0: detecting: handle(0x0009),
sas_address(0x50014380353cba70), phy(3)
[Mon May 25 21:09:29 2026] mpt2sas_cm0: REPORT_LUNS: handle(0x0009),
retries(0)
[Mon May 25 21:09:29 2026] TEST_UNIT_READY: handle(0x0009) lun(0)
[Mon May 25 21:09:29 2026] START_UNIT: handle(0x0009), lun(0)
[Mon May 25 21:09:48 2026] TEST_UNIT_READY: handle(0x0009) lun(0)
[Mon May 25 21:09:48 2026] mpt2sas_cm0: detecting: handle(0x0009),
sas_address(0x50014380353cba70), phy(3)
[Mon May 25 21:09:48 2026] mpt2sas_cm0: REPORT_LUNS: handle(0x0009),
retries(0)
[Mon May 25 21:09:48 2026] TEST_UNIT_READY: handle(0x0009) lun(0)
[Mon May 25 21:09:48 2026] START_UNIT: handle(0x0009), lun(0)
[Mon May 25 21:10:05 2026] TEST_UNIT_READY: handle(0x0009) lun(0)
[Mon May 25 21:10:05 2026] mpt2sas_cm0: detecting: handle(0x0009),
sas_address(0x50014380353cba70), phy(3)
[Mon May 25 21:10:05 2026] mpt2sas_cm0: REPORT_LUNS: handle(0x0009),
retries(0)
[Mon May 25 21:10:05 2026] TEST_UNIT_READY: handle(0x0009) lun(0)
[Mon May 25 21:10:05 2026] START_UNIT: handle(0x0009), lun(0)
[Mon May 25 21:10:05 2026] TEST_UNIT_READY: handle(0x0009) lun(0)
[Mon May 25 21:10:06 2026] mpt2sas_cm0: detecting: handle(0x0009),
sas_address(0x50014380353cba70), phy(3)
[Mon May 25 21:10:06 2026] mpt2sas_cm0: REPORT_LUNS: handle(0x0009),
retries(0)
[Mon May 25 21:10:06 2026] TEST_UNIT_READY: handle(0x0009) lun(0)
[Mon May 25 21:10:06 2026] mpt2sas_cm0: handle(0x9) sas_address(0x50014380353cba70) port_type(0x1)
[Mon May 25 21:10:06 2026] scsi 0:0:7:0: Sequential-Access HP Ultrium 6-SCSI O5ID PQ: 0 ANSI: 6
[Mon May 25 21:10:06 2026] scsi 0:0:7:0: SSP: handle(0x0009), sas_addr(0x50014380353cba70), phy(3), device_name(0x50014380353cba72)
[Mon May 25 21:10:06 2026] scsi 0:0:7:0: enclosure logical id (0x500605b00b42f8b0), slot(3)
[Mon May 25 21:10:06 2026] scsi 0:0:7:0: qdepth(254), tagged(1), scsi_level(7), cmd_que(1)
[Mon May 25 21:10:06 2026] scsi 0:0:7:0: TLR Enabled
[Mon May 25 21:10:06 2026] st 0:0:7:0: Attached scsi tape st0
[Mon May 25 21:10:06 2026] st 0:0:7:0: st0: try direct i/o: yes (alignment 4 B)
[Mon May 25 21:10:06 2026] st 0:0:7:0: Attached scsi generic sg6 type 1
[Mon May 25 21:10:06 2026] end_device-0:7: add: handle(0x0009), sas_addr(0x50014380353cba70)
[Mon May 25 21:10:06 2026] st 0:0:7:0: [st0] Block limits 1 - 16777215 bytes.
[Mon May 25 21:20:59 2026] st 0:0:7:0: device_block, handle(0x0009)
[Mon May 25 21:21:00 2026] mpt2sas_cm0: device is not present handle(0x049)!!!
[Mon May 25 21:21:01 2026] mpt2sas_cm0: device is not present handle(0x049)!!!
[Mon May 25 21:21:01 2026] st 0:0:7:0: device_unblock and setting to running, handle(0x0009)
[Mon May 25 21:21:01 2026] mpt2sas_cm0: mpt3sas_transport_port_remove: removed: sas_addr(0x50014380353cba70)
[Mon May 25 21:21:01 2026] mpt2sas_cm0: removing handle(0x0009), sas_addr(0x50014380353cba70)
[Mon May 25 21:21:01 2026] mpt2sas_cm0: enclosure logical id(0x500605b00b42f8b0), slot(3)
[Mon May 25 21:21:02 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:02 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:03 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:03 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:04 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:04 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:05 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:05 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:06 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:06 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:07 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:07 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:08 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:08 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:09 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:09 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:10 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:10 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:11 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:11 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:12 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:12 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:13 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:13 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:14 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:14 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:15 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:15 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:16 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:16 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:17 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:17 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
[Mon May 25 21:21:18 2026] mpt2sas_cm0: handle(0x0009), ioc_status(0x0022) failure at drivers/scsi/mpt3sas/mpt3sas_transport.c:228/_transport_set_identify()!
[Mon May 25 21:21:18 2026] mpt2sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:8407/_scsih_add_device()!
...the "cm0" failure continues for several thousand lines. However, the tape drive works and PBS successfully writes my backups to tape.
I have not changed my hardware since a few months, and also not the tape drive; further, I have not touched any configuration files. I 100% definitely know that up until ~3 weeks ago it was working flawlessly without any dmesg error entries, but now these above errors appear.
I wonder:
a) does someone know what these mean? is it something to worry or should I just ignore it?
b) how to fix them?
Anyone else has similar entries?