• Bug#1104669: linux-image-6.12.25-amd64: WARNING during boot at block/bl

    From Laurent Bonnaud@21:1/5 to All on Sun May 4 11:30:01 2025
    XPost: linux.debian.kernel

    Package: src:linux
    Version: 6.12.25-1
    Severity: normal

    Dear Maintainer,

    when this system boots up, the kernel outputs this warning message:

    [ 1.977261] ------------[ cut here ]------------
    [ 1.977265] WARNING: CPU: 0 PID: 11 at block/blk-mq-cpumap.c:90 blk_mq_map_hw_queues+0xcf/0xe0
    [ 1.977284] Modules linked in: ahci(+) libahci xhci_pci ixgbe(+) libata xhci_hcd megaraid_sas(+) xfrm_algo dca tg3 i2c_i801 crc32_pclmul usbcore crc32c_intel scsi_mod mdio_devres i2c_smbus libphy mdio lpc_ich usb_common scsi_common wmi
    [ 1.977355] CPU: 0 UID: 0 PID: 11 Comm: kworker/0:1 Not tainted 6.12.25-amd64 #1 Debian 6.12.25-1
    [ 1.977366] Hardware name: Dell Inc. PowerEdge R540/0PRWNC, BIOS 2.23.0 01/09/2025
    [ 1.977372] Workqueue: events work_for_cpu_fn
    [ 1.977389] RIP: 0010:blk_mq_map_hw_queues+0xcf/0xe0
    [ 1.977401] Code: 8b 35 d5 d6 82 01 48 63 d0 48 c7 c7 60 15 60 aa e8 c6 b5 05 00 3b 05 c0 d6 82 01 72 d3 5b 5d 41 5c 41 5d 41 5e c3 cc cc cc cc <0f> 0b eb d2 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
    [ 1.977409] RSP: 0018:ffff9a77400d7d48 EFLAGS: 00010206
    [ 1.977417] RAX: 0000000000000000 RBX: ffff88f892c88000 RCX: 000000000000000a
    [ 1.977424] RDX: 0000000000000001 RSI: ffff88f882f380c8 RDI: ffff88f892c880e8
    [ 1.977430] RBP: 0000000000000001 R08: ffffffffaa601560 R09: 0000000000000000
    [ 1.977436] R10: ffff9a77400d7d88 R11: 0000000000000040 R12: 0000000000000200
    [ 1.977442] R13: 0000000000000000 R14: ffff88f892c880e8 R15: ffff88f8861e3000
    [ 1.977448] FS: 0000000000000000(0000) GS:ffff88ffdfc00000(0000) knlGS:0000000000000000
    [ 1.977455] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    [ 1.977462] CR2: 00007f8fba480900 CR3: 0000000210222003 CR4: 00000000007706f0
    [ 1.977469] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    [ 1.977474] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
    [ 1.977479] PKRU: 55555554
    [ 1.977484] Call Trace:
    [ 1.977490] <TASK>
    [ 1.977499] megasas_map_queues+0x49/0x90 [megaraid_sas]
    [ 1.977544] blk_mq_alloc_tag_set+0x154/0x3a0
    [ 1.977555] scsi_add_host_with_dma.cold+0x9b/0x2b6 [scsi_mod]
    [ 1.977617] megasas_probe_one.cold+0x14ba/0x16c8 [megaraid_sas]
    [ 1.977667] local_pci_probe+0x42/0x90
    [ 1.977691] work_for_cpu_fn+0x17/0x30
    [ 1.977703] process_one_work+0x174/0x330
    [ 1.977714] worker_thread+0x251/0x390
    [ 1.977725] ? __pfx_worker_thread+0x10/0x10
    [ 1.977734] kthread+0xcf/0x100
    [ 1.977741] ? __pfx_kthread+0x10/0x10
    [ 1.977747] ret_from_fork+0x31/0x50
    [ 1.977757] ? __pfx_kthread+0x10/0x10
    [ 1.977763] ret_from_fork_asm+0x1a/0x30
    [ 1.977778] </TASK>
    [ 1.977781] ---[ end trace 0000000000000000 ]---

    With 6.1 kernels from Debian 12, no such problem exists.

    Thanks,

    -- Package-specific info:
    ** Version:
    Linux version 6.12.25-amd64 (debian-kernel@lists.debian.org) (x86_64-linux-gnu-gcc-14 (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44) #1 SMP PREEMPT_DYNAMIC Debian 6.12.25-1 (2025-04-25)

    ** Command line:
    BOOT_IMAGE=/boot/vmlinuz-6.12.25-amd64 root=UUID=d4026c7c-61cc-435f-81c5-76194e22454e ro quiet net.ifnames=0

    ** Tainted: W (512)
    * kernel issued warning

    ** Kernel log:
    Unable to read kernel log; any relevant messages should be attached

    ** Model information
    sys_vendor: Dell Inc.
    product_name: PowerEdge R540
    product_version:
    chassis_vendor: Dell Inc.
    chassis_version:
    bios_vendor: Dell Inc.
    bios_version: 2.23.0
    board_vendor: Dell Inc.
    board_name: 0PRWNC
    board_version: A07

    ** Configuration for modprobe:
    blacklist acpi_power_meter
    blacklist arkfb
    blacklist aty128fb
    blacklist atyfb
    blacklist radeonfb
    blacklist cirrusfb
    blacklist cyber2000fb
    blacklist kyrofb
    blacklist matroxfb_base
    blacklist mb862xxfb
    blacklist neofb
    blacklist pm2fb
    blacklist pm3fb
    blacklist s3fb
    blacklist savagefb
    blacklist sisfb
    blacklist tdfxfb
    blacklist tridentfb
    blacklist vt8623fb
    blacklist microcode
    options snd_pcsp index=-2
    options cx88_alsa index=-2
    options snd_atiixp_modem index=-2
    options snd_intel8x0m index=-2
    options snd_via82xx_modem index=-2
    options bonding max_bonds=0
    options dummy numdummies=0
    options ifb numifbs=0
    options net ifnames=0

    ** Loaded modules:
    tls
    nf_tables
    libcrc32c
    nfnetlink
    tcp_diag
    udp_diag
    inet_diag
    intel_rapl_msr
    intel_rapl_common
    intel_uncore_frequency
    intel_uncore_frequency_common
    skx_edac
    binfmt_misc
    skx_edac_common
    nfit
    libnvdimm
    nls_ascii
    nls_cp437
    x86_pkg_temp_thermal
    intel_powerclamp
    vfat
    coretemp
    fat
    kvm_intel
    kvm
    irqbypass
    crct10dif_pclmul
    ghash_clmulni_intel
    sha512_ssse3
    sha256_ssse3
    sha1_ssse3
    aesni_intel
    gf128mul
    crypto_simd
    cryptd
    mgag200
    drm_shmem_helper
    ipmi_ssif
    rapl
    intel_cstate
    sg
    drm_kms_helper
    intel_uncore
    dell_pc
    dell_smbios
    dell_wmi_descriptor
    i2c_algo_bit
    mei_me
    evdev
    joydev
    iTCO_wdt
    platform_profile
    intel_pmc_bxt
    dcdbas
    acpi_ipmi
    mei
    iTCO_vendor_support
    ipmi_si
    watchdog
    pcspkr
    ipmi_devintf
    wmi_bmof
    intel_pch_thermal
    ipmi_msghandler
    button
    drm
    dm_mod
    efi_pstore
    loop
    configfs
    efivarfs
    ip_tables
    x_tables
    autofs4
    ext4
    crc16
    mbcache
    jbd2
    crc32c_generic
    hid_generic
    sd_mod
    usbhid
    hid
    ahci
    libahci
    xhci_pci
    ixgbe
    libata
    xhci_hcd
    megaraid_sas
    xfrm_algo
    dca
    tg3
    i2c_i801
    crc32_pclmul
    usbcore
    crc32c_intel
    scsi_mod
    mdio_devres
    i2c_smbus
    libphy
    mdio
    lpc_ich
    usb_common
    scsi_common
    wmi

    ** PCI devices:
    00:00.0 Host bridge [0600]: Intel Corporation Sky Lake-E DMI3 Registers [8086:2020] (rev 04)
    Subsystem: Intel Corporation Sky Lake-E DMI3 Registers [8086:0000]
    Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Interrupt: pin A routed to IRQ 0
    NUMA node: 0
    IOMMU group: 2
    Capabilities: [90] Express (v2) Root Port (Slot-), MSI 00
    DevCap: MaxPayload 256 bytes, PhantFunc 0
    ExtTag- RBE+
    DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
    RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
    MaxPayload 128 bytes, MaxReadReq 128 bytes
    DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
    LnkCap: Port #0, Speed 8GT/s, Width x4, ASPM not supported
    ClockPM- Surprise+ LLActRep+ BwNot+ ASPMOptComp+
    LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk-
    ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
    LnkSta: Speed unknown, Width x0
    TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
    RootCap: CRSVisible-
    RootCtl: ErrCorrectable- ErrNon-Fatal+ ErrFatal+ PMEIntEna- CRSVisible-
    RootSta: PME ReqID 0000, PMEStatus- PMEPending-
    DevCap2: Completion Timeout: Range BCD, TimeoutDis+ NROPrPrP- LTR-
    10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
    EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
    FRS- LN System CLS Not Supported, TPHComp+ ExtTPHComp- ARIFwd-
    AtomicOpsCap: Routing- 32bit+ 64bit+ 128bitCAS+
    DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- 10BitTagReq- OBFF Disabled, ARIFwd-
    AtomicOpsCtl: ReqEn- EgressBlck-
    LnkCap2: Supported Link Speeds: 2.5-8GT/s, Crosslink- Retimer- 2Retimers- DRS-
    LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
    Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
    Compliance Preset/De-emphasis: -6dB de-emphasis, 0dB preshoot
    LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete- EqualizationPhase1-
    EqualizationPhase2- EqualizationPhase3- LinkEqualizationRequest-
    Retimer- 2Retimers- CrosslinkRes: unsupported
    Capabilities: [e0] Power Management version 3
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [100 v1] Vendor Specific Information: ID=0002 Rev=0 Len=00c <?>
    Capabilities: [144 v1] Vendor Specific Information: ID=0004 Rev=1 Len=03c <?>
    Capabilities: [1d0 v1] Vendor Specific Information: ID=0003 Rev=1 Len=00a <?>
    Capabilities: [250 v1] Secondary PCI Express
    LnkCtl3: LnkEquIntrruptEn- PerformEqu-
    LaneErrStat: LaneErr at lane: 0 1 2 3
    Capabilities: [280 v1] Vendor Specific Information: ID=0005 Rev=3 Len=018 <?>
    Capabilities: [300 v1] Vendor Specific Information: ID=0008 Rev=0 Len=038 <?>

    00:05.0 System peripheral [0880]: Intel Corporation Sky Lake-E MM/Vt-d Configuration Registers [8086:2024] (rev 04)
    Subsystem: Intel Corporation Sky Lake-E MM/Vt-d Configuration Registers [8086:0000]
    Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    NUMA node: 0
    IOMMU group: 3
    Capabilities: [40] Express (v2) Root Complex Integrated Endpoint, MSI 00
    DevCap: MaxPayload 128 bytes, PhantFunc 0
    ExtTag- RBE- FLReset-
    DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
    RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
    MaxPayload 128 bytes, MaxReadReq 128 bytes
    DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
    DevCap2: Completion Timeout: Not Supported, TimeoutDis- NROPrPrP- LTR-
    10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
    EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
    FRS-
    DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- 10BitTagReq- OBFF Disabled,
    AtomicOpsCtl: ReqEn-

    00:05.2 System peripheral [0880]: Intel Corporation Sky Lake-E RAS [8086:2025] (rev 04)
    Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    NUMA node: 0
    IOMMU group: 4
    Capabilities: [40] Express (v2) Root Complex Integrated Endpoint, MSI 00
    DevCap: MaxPayload 128 bytes, PhantFunc 0
    ExtTag- RBE- FLReset-
    DevCtl: CorrErr- NonFatalErr- FatalErr+ UnsupReq-
    RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
    MaxPayload 128 bytes, MaxReadReq 128 bytes
    DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
    DevCap2: Completion Timeout: Not Supported, TimeoutDis- NROPrPrP- LTR-
    10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
    EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
    FRS-
    DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- 10BitTagReq- OBFF Disabled,
    AtomicOpsCtl: ReqEn-

    00:05.4 PIC [0800]: Intel Corporation Sky Lake-E IOAPIC [8086:2026] (rev 04) (prog-if 20 [IO(X)-APIC])
    Subsystem: Intel Corporation Sky Lake-E IOAPIC [8086:2026]
    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0
    NUMA node: 0
    IOMMU group: 5
    Region 0: Memory at 93720000 (32-bit, non-prefetchable) [size=4K]
    Capabilities: [44] Express (v1) Root Complex Integrated Endpoint, MSI 00
    DevCap: MaxPayload 128 bytes, PhantFunc 0
    ExtTag- RBE- FLReset-
    DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
    RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
    MaxPayload 128 bytes, MaxReadReq 128 bytes
    DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
    Capabilities: [e0] Power Management version 3
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-

    00:08.0 System peripheral [0880]: Intel Corporation Sky Lake-E Ubox Registers [8086:2014] (rev 04)
    Subsystem: Intel Corporation Sky Lake-E Ubox Registers [8086:0000]
    Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    NUMA node: 0
    IOMMU group: 6
    Capabilities: [40] Express (v2) Root Complex Integrated Endpoint, MSI 00
    DevCap: MaxPayload 128 bytes, PhantFunc 0
    ExtTag- RBE- FLReset-
    DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
    RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
    MaxPayload 128 bytes, MaxReadReq 128 bytes
    DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
    DevCap2: Completion Timeout: Not Supported, TimeoutDis- NROPrPrP- LTR-
    10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
    EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
    FRS-
    DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- 10BitTagReq- OBFF Disabled,
    AtomicOpsCtl: ReqEn-

    00:08.1 Performance counters [1101]: Intel Corporation Sky Lake-E Ubox Registers [8086:2015] (rev 04)
    Subsystem: Intel Corporation Sky Lake-E Ubox Registers [8086:0000]
    Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
    Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    NUMA node: 0
    IOMMU group: 7

    00:08.2 System peripheral [0880]: Intel Corporation Sky Lake-E Ubox Registers [8086:2016] (rev 04)
    Subsystem: Intel Corporation Sky Lake-E Ubox Registers [8086:0000]
    Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    NUMA node: 0
    IOMMU group: 8
    Capabilities: [40] Express (v2) Root Complex Integrated Endpoint, MSI 00
    DevCap: MaxPayload 128 bytes, PhantFunc 0
    ExtTag- RBE- FLReset-
    DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
    RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
    MaxPayload 128 bytes, MaxReadReq 128 bytes
    DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
    DevCap2: Completion Timeout: Not Supported, TimeoutDis- NROPrPrP- LTR-
    10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
    EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
    FRS-
    DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- 10BitTagReq- OBFF Disabled,
    AtomicOpsCtl: ReqEn-

    00:11.0 Unassigned class [ff00]: Intel Corporation C620 Series Chipset Family MROM 0 [8086:a1ec] (rev 09)
    Subsystem: Dell C620 Series Chipset Family MROM 0 [1028:07ca]
    Control: I/O- Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0
    NUMA node: 0
    IOMMU group: 9
    Capabilities: [80] Power Management version 3
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-

    00:11.5 SATA controller [0106]: Intel Corporation C620 Series Chipset Family SSATA Controller [AHCI mode] [8086:a1d2] (rev 09) (prog-if 01 [AHCI 1.0])
    Subsystem: Dell C620 Series Chipset Family SSATA Controller [AHCI mode] [1028:07ca]
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+
    Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0
    Interrupt: pin A routed to IRQ 51
    NUMA node: 0
    IOMMU group: 9
    Region 0: Memory at 93716000 (32-bit, non-prefetchable) [size=8K]
    Region 1: Memory at 9371f000 (32-bit, non-prefetchable) [size=256]
    Region 2: I/O ports at 2068 [size=8]
    Region 3: I/O ports at 2074 [size=4]
    Region 4: I/O ports at 2040 [size=32]
    Region 5: Memory at 93680000 (32-bit, non-prefetchable) [size=512K]
    Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
    Address: fee002b8 Data: 0000
    Capabilities: [70] Power Management version 3
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-)
    Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [a8] SATA HBA v1.0 BAR4 Offset=00000004
    Kernel driver in use: ahci
    Kernel modules: ahci

    00:14.0 USB controller [0c03]: Intel Corporation C620 Series Chipset Family USB 3.0 xHCI Controller [8086:a1af] (rev 09) (prog-if 30 [XHCI])
    Subsystem: Dell C620 Series Chipset Family USB 3.0 xHCI Controller [1028:07ca]
    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+
    Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0
    Interrupt: pin A routed to IRQ 43
    NUMA node: 0
    IOMMU group: 10
    Region 0: Memory at 93700000 (64-bit, non-prefetchable) [size=64K]
    Capabilities: [70] Power Management version 2
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0-,D1-,D2-,D3hot+,D3cold+)
    Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [80] MSI: Enable+ Count=8/8 Maskable- 64bit+
    Address: 00000000fee00318 Data: 0000
    Kernel driver in use: xhci_hcd
    Kernel modules: xhci_pci

    00:14.2 Signal processing controller [1180]: Intel Corporation C620 Series Chipset Family Thermal Subsystem [8086:a1b1] (rev 09)
    Subsystem: Dell C620 Series Chipset Family Thermal Subsystem [1028:07ca]
    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0
    Interrupt: pin C routed to IRQ 18
    NUMA node: 0
    IOMMU group: 10
    Region 0: Memory at 9371c000 (64-bit, non-prefetchable) [size=4K]
    Capabilities: [50] Power Management version 3
    Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
    Address: 00000000 Data: 0000
    Kernel driver in use: intel_pch_thermal
    Kernel modules: intel_pch_thermal

    00:16.0 Communication controller [0780]: Intel Corporation C620 Series Chipset Family MEI Controller #1 [8086:a1ba] (rev 09)
    Subsystem: Dell C620 Series Chipset Family MEI Controller [1028:07ca]
    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0
    Interrupt: pin A routed to IRQ 255
    NUMA node: 0
    IOMMU group: 11
    Region 0: Memory at 9371b000 (64-bit, non-prefetchable) [size=4K]
    Capabilities: [50] Power Management version 3
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-)
    Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [8c] MSI: Enable- Count=1/1 Maskable- 64bit+
    Address: 0000000000000000 Data: 0000
    Kernel modules: mei_me

    00:16.1 Communication controller [0780]: Intel Corporation C620 Series Chipset Family MEI Controller #2 [8086:a1bb] (rev 09)
    Subsystem: Dell C620 Series Chipset Family MEI Controller [1028:07ca]
    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0
    Interrupt: pin A routed to IRQ 255
    NUMA node: 0
    IOMMU group: 11
    Region 0: Memory at 9371a000 (64-bit, non-prefetchable) [size=4K]
    Capabilities: [50] Power Management version 3
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-)
    Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [8c] MSI: Enable- Count=1/1 Maskable- 64bit+
    Address: 0000000000000000 Data: 0000

    00:16.4 Communication controller [0780]: Intel Corporation C620 Series Chipset Family MEI Controller #3 [8086:a1be] (rev 09)
    Subsystem: Dell C620 Series Chipset Family MEI Controller [1028:07ca]
    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0
    Interrupt: pin A routed to IRQ 255
    NUMA node: 0
    IOMMU group: 11
    Region 0: Memory at 93719000 (64-bit, non-prefetchable) [size=4K]
    Capabilities: [50] Power Management version 3
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-)
    Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [8c] MSI: Enable- Count=1/1 Maskable- 64bit+
    Address: 0000000000000000 Data: 0000

    00:17.0 SATA controller [0106]: Intel Corporation C620 Series Chipset Family SATA Controller [AHCI mode] [8086:a182] (rev 09) (prog-if 01 [AHCI 1.0])
    Subsystem: Dell C620 Series Chipset Family SATA Controller [AHCI mode] [1028:07ca]
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+
    Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0
    Interrupt: pin A routed to IRQ 52
    NUMA node: 0
    IOMMU group: 12
    Region 0: Memory at 93714000 (32-bit, non-prefetchable) [size=8K]
    Region 1: Memory at 9371e000 (32-bit, non-prefetchable) [size=256]
    Region 2: I/O ports at 2060 [size=8]
    Region 3: I/O ports at 2070 [size=4]
    Region 4: I/O ports at 2020 [size=32]
    Region 5: Memory at 93600000 (32-bit, non-prefetchable) [size=512K]
    Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
    Address: fee002d8 Data: 0000
    Capabilities: [70] Power Management version 3
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-)
    Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [a8] SATA HBA v1.0 BAR4 Offset=00000004
    Kernel driver in use: ahci
    Kernel modules: ahci

    00:1c.0 PCI bridge [0604]: Intel Corporation C620 Series Chipset Family PCI Express Root Port #1 [8086:a190] (rev f9) (prog-if 00 [Normal decode])
    DeviceName: SLOT 6
    Subsystem: Dell C620 Series Chipset Family PCI Express Root Port [1028:07ca]
    Physical Slot: 6
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0
    Interrupt: pin A routed to IRQ 26
    NUMA node: 0
    IOMMU group: 13
    Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
    I/O behind bridge: [disabled] [16-bit]
    Memory behind bridge: 90000000-900fffff [size=1M] [32-bit]
    Prefetchable memory behind bridge: 92c00000-934fffff [size=9M] [32-bit]
    Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
    BridgeCtl: Parity+ SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
    PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
    Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
    DevCap: MaxPayload 128 bytes, PhantFunc 0
    ExtTag- RBE+
    DevCtl: CorrErr- NonFatalErr- FatalErr+ UnsupReq-
    RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
    MaxPayload 128 bytes, MaxReadReq 128 bytes
    DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr+ TransPend-
    LnkCap: Port #1, Speed 8GT/s, Width x4, ASPM L1, Exit Latency L1 <16us
    ClockPM- Surprise- LLActRep+ BwNot+ ASPMOptComp+
    LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk+
    ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
    LnkSta: Speed 8GT/s, Width x4
    TrErr- Train- SlotClk+ DLActive+ BWMgmt- ABWMgmt-
    SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
    Slot #6, PowerLimit 25W; Interlock- NoCompl+
    SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
    Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
    SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
    Changed: MRL- PresDet- LinkState+
    RootCap: CRSVisible-
    RootCtl: ErrCorrectable- ErrNon-Fatal+ ErrFatal+ PMEIntEna+ CRSVisible-
    RootSta: PME ReqID 0000, PMEStatus- PMEPending-
    DevCap2: Completion Timeout: Range ABC, TimeoutDis+ NROPrPrP- LTR+
    10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
    EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
    FRS- LN System CLS Not Supported, TPHComp- ExtTPHComp- ARIFwd+
    AtomicOpsCap: Routing- 32bit- 64bit- 128bitCAS-
    DevCtl2: Completion Timeout: 65ms to 210ms, TimeoutDis- LTR+ 10BitTagReq- OBFF Disabled, ARIFwd+
    AtomicOpsCtl: ReqEn- EgressBlck-
    LnkCap2: Supported Link Speeds: 2.5-8GT/s, Crosslink- Retimer- 2Retimers- DRS-
    LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis-
    Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
    Compliance Preset/De-emphasis: -6dB de-emphasis, 0dB preshoot
    LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete+ EqualizationPhase1+
    EqualizationPhase2+ EqualizationPhase3+ LinkEqualizationRequest-
    Retimer- 2Retimers- CrosslinkRes: unsupported
    Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
    Address: fee00218 Data: 0000
    Capabilities: [90] Subsystem: Dell C620 Series Chipset Family PCI Express Root Port [1028:07ca]
    Capabilities: [a0] Power Management version 3
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
    Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [100 v1] Advanced Error Reporting
    UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
    UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt+ RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol+
    UESvrt: DLP+ SDES- TLP+ FCP- CmpltTO+ CmpltAbrt+ UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
    CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr-
    CEMsk: RxErr+ BadTLP+ BadDLLP+ Rollover+ Timeout+ AdvNonFatalErr+
    AERCap: First Error Pointer: 00, ECRCGenCap- ECRCGenEn- ECRCChkCap- ECRCChkEn-
    MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
    HeaderLog: 00000000 00000000 00000000 00000000
    RootCmd: CERptEn- NFERptEn- FERptEn-
    RootSta: CERcvd- MultCERcvd- UERcvd- MultUERcvd-
    FirstFatal- NonFatalMsg- FatalMsg- IntMsg 0
    ErrorSrc: ERR_COR: 0000 ERR_FATAL/NONFATAL: 0101
    Capabilities: [140 v1] Access Control Services
    ACSCap: SrcValid+ TransBlk+ ReqRedir+ CmpltRedir+ UpstreamFwd- EgressCtrl- DirectTrans-
    ACSCtl: SrcValid+ TransBlk- ReqRedir+ CmpltRedir+ UpstreamFwd- EgressCtrl- DirectTrans-
    Capabilities: [220 v1] Secondary PCI Express
    LnkCtl3: LnkEquIntrruptEn- PerformEqu-
    LaneErrStat: 0
    Kernel driver in use: pcieport

    00:1c.4 PCI bridge [0604]: Intel Corporation C620 Series Chipset Family PCI Express Root Port #5 [8086:a194] (rev f9) (prog-if 00 [Normal decode])
    Subsystem: Dell C620 Series Chipset Family PCI Express Root Port [1028:07ca]
    Physical Slot: 6
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0
    Interrupt: pin A routed to IRQ 27
    NUMA node: 0
    IOMMU group: 14
    Bus: primary=00, secondary=02, subordinate=03, sec-latency=0
    I/O behind bridge: [disabled] [16-bit]
    Memory behind bridge: 92000000-928fffff [size=9M] [32-bit]
    Prefetchable memory behind bridge: 91000000-91ffffff [size=16M] [32-bit]
    Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
    BridgeCtl: Parity+ SERR+ NoISA- VGA+ VGA16+ MAbort- >Reset- FastB2B-
    PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
    Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
    DevCap: MaxPayload 128 bytes, PhantFunc 0
    ExtTag- RBE+
    DevCtl: CorrErr- NonFatalErr- FatalErr+ UnsupReq-
    RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
    MaxPayload 128 bytes, MaxReadReq 128 bytes
    DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr+ TransPend-
    LnkCap: Port #5, Speed 5GT/s, Width x1, ASPM L1, Exit Latency L1 <16us
    ClockPM- Surprise- LLActRep+ BwNot+ ASPMOptComp+
    LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk-
    ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
    LnkSta: Speed 5GT/s, Width x1
    TrErr- Train- SlotClk+ DLActive+ BWMgmt- ABWMgmt-
    SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
    Slot #0, PowerLimit 10W; Interlock- NoCompl+
    SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
    Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
    SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
    Changed: MRL- PresDet- LinkState+
    RootCap: CRSVisible-
    RootCtl: ErrCorrectable- ErrNon-Fatal+ ErrFatal+ PMEIntEna+ CRSVisible-
    RootSta: PME ReqID 0000, PMEStatus- PMEPending-
    DevCap2: Completion Timeout: Range ABC, TimeoutDis+ NROPrPrP- LTR+
    10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
    EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
    FRS- LN System CLS Not Supported, TPHComp- ExtTPHComp- ARIFwd+
    AtomicOpsCap: Routing- 32bit- 64bit- 128bitCAS-
    DevCtl2: Completion Timeout: 65ms to 210ms, TimeoutDis- LTR+ 10BitTagReq- OBFF Disabled, ARIFwd-
    AtomicOpsCtl: ReqEn- EgressBlck-
    LnkCap2: Supported Link Speeds: 2.5-5GT/s, Crosslink- Retimer- 2Retimers- DRS-
    LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
    Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
    Compliance Preset/De-emphasis: -6dB de-emphasis, 0dB preshoot
    LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete- EqualizationPhase1-
    EqualizationPhase2- EqualizationPhase3- LinkEqualizationRequest-
    Retimer- 2Retimers- CrosslinkRes: unsupported
    Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
    Address: fee00238 Data: 0000
    Capabilities: [90] Subsystem: Dell C620 Series Chipset Family PCI Express Root Port [1028:07ca]
    Capabilities: [a0] Power Management version 3
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
    Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
    Capabilities: [100 v1] Advanced Error Reporting
    UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
    UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt+ RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol+
    UESvrt: DLP+ SDES- TLP+ FCP- CmpltTO+ CmpltAbrt+ UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
    CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr-
    CEMsk: RxErr+ BadTLP+ BadDLLP+ Rollover+ Timeout+ AdvNonFatalErr+
    AERCap: First Error Pointer: 00, ECRCGenCap- ECRCGenEn- ECRCChkCap- ECRCChkEn-
    MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
    HeaderLog: 00000000 00000000 00000000 00000000
    RootCmd: CERptEn- NFERptEn- FERptEn-
    RootSta: CERcvd- MultCERcvd- UERcvd- MultUERcvd-
    FirstFatal- NonFatalMsg- FatalMsg- IntMsg 0
    ErrorSrc: ERR_COR: 0000 ERR_FATAL/NONFATAL: 0000
    Capabilities: [140 v1] Access Control Services
    ACSCap: SrcValid+ TransBlk+ ReqRedir+ CmpltRedir+ UpstreamFwd- EgressCtrl- DirectTrans-
    ACSCtl: SrcValid+ TransBlk- ReqRedir+ CmpltRedir+ UpstreamFwd- EgressCtrl- DirectTrans-
    Kernel driver in use: pcieport

    00:1c.5 PCI bridge [0604]: Intel Corporation C620 Series Chipset Family PCI Express Root Port #6 [8086:a195] (rev f9) (prog-if 00 [Normal decode])
    Subsystem: Dell C620 Series Chipset Family PCI Express Root Port [1028:07ca]
    Physical Slot: 6
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx+
    Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
    Latency: 0
    Interrupt: pin B routed to IRQ 28
    NUMA node: 0
    IOMMU group: 15
    Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
    I/O behind bridge: [disabled] [16-bit]
    Memory behind bridge: 90100000-901fffff [size=1M] [32-bit]
    Prefetchable memory behind bridge: 93500000-935fffff [size=1M] [32-bit]
    Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
    BridgeCtl: Parity+ SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-
    PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
    Capabilities: [40] Express (v2) Root Port (Slot-), MSI 00
    DevCap: MaxPayload 128 bytes, PhantFunc 0
    ExtTag- RBE+
    DevCtl: CorrErr- NonFatalErr- FatalErr+ UnsupReq-
    RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
    MaxPayload 128 bytes, MaxReadReq 128 bytes

    [continued in next message]

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Salvatore Bonaccorso@21:1/5 to Laurent Bonnaud on Sun May 4 16:30:02 2025
    XPost: linux.debian.kernel

    Control: forwarded -1 https://lore.kernel.org/stable/20250503091422.0389.409509F4@e16-tech.com/
    Control: tags -1 + upstream moreinfo

    Hi Laurent,

    On Sun, May 04, 2025 at 11:24:09AM +0200, Laurent Bonnaud wrote:
    Package: src:linux
    Version: 6.12.25-1
    Severity: normal

    Dear Maintainer,

    when this system boots up, the kernel outputs this warning message:

    [ 1.977261] ------------[ cut here ]------------
    [ 1.977265] WARNING: CPU: 0 PID: 11 at block/blk-mq-cpumap.c:90 blk_mq_map_hw_queues+0xcf/0xe0
    [ 1.977284] Modules linked in: ahci(+) libahci xhci_pci ixgbe(+) libata xhci_hcd megaraid_sas(+) xfrm_algo dca tg3 i2c_i801 crc32_pclmul usbcore crc32c_intel scsi_mod mdio_devres i2c_smbus libphy mdio lpc_ich usb_common scsi_common wmi
    [ 1.977355] CPU: 0 UID: 0 PID: 11 Comm: kworker/0:1 Not tainted 6.12.25-amd64 #1 Debian 6.12.25-1
    [ 1.977366] Hardware name: Dell Inc. PowerEdge R540/0PRWNC, BIOS 2.23.0 01/09/2025
    [ 1.977372] Workqueue: events work_for_cpu_fn
    [ 1.977389] RIP: 0010:blk_mq_map_hw_queues+0xcf/0xe0
    [ 1.977401] Code: 8b 35 d5 d6 82 01 48 63 d0 48 c7 c7 60 15 60 aa e8 c6 b5 05 00 3b 05 c0 d6 82 01 72 d3 5b 5d 41 5c 41 5d 41 5e c3 cc cc cc cc <0f> 0b eb d2 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
    [ 1.977409] RSP: 0018:ffff9a77400d7d48 EFLAGS: 00010206
    [ 1.977417] RAX: 0000000000000000 RBX: ffff88f892c88000 RCX: 000000000000000a
    [ 1.977424] RDX: 0000000000000001 RSI: ffff88f882f380c8 RDI: ffff88f892c880e8
    [ 1.977430] RBP: 0000000000000001 R08: ffffffffaa601560 R09: 0000000000000000
    [ 1.977436] R10: ffff9a77400d7d88 R11: 0000000000000040 R12: 0000000000000200
    [ 1.977442] R13: 0000000000000000 R14: ffff88f892c880e8 R15: ffff88f8861e3000
    [ 1.977448] FS: 0000000000000000(0000) GS:ffff88ffdfc00000(0000) knlGS:0000000000000000
    [ 1.977455] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    [ 1.977462] CR2: 00007f8fba480900 CR3: 0000000210222003 CR4: 00000000007706f0
    [ 1.977469] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    [ 1.977474] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
    [ 1.977479] PKRU: 55555554
    [ 1.977484] Call Trace:
    [ 1.977490] <TASK>
    [ 1.977499] megasas_map_queues+0x49/0x90 [megaraid_sas]
    [ 1.977544] blk_mq_alloc_tag_set+0x154/0x3a0
    [ 1.977555] scsi_add_host_with_dma.cold+0x9b/0x2b6 [scsi_mod]
    [ 1.977617] megasas_probe_one.cold+0x14ba/0x16c8 [megaraid_sas]
    [ 1.977667] local_pci_probe+0x42/0x90
    [ 1.977691] work_for_cpu_fn+0x17/0x30
    [ 1.977703] process_one_work+0x174/0x330
    [ 1.977714] worker_thread+0x251/0x390
    [ 1.977725] ? __pfx_worker_thread+0x10/0x10
    [ 1.977734] kthread+0xcf/0x100
    [ 1.977741] ? __pfx_kthread+0x10/0x10
    [ 1.977747] ret_from_fork+0x31/0x50
    [ 1.977757] ? __pfx_kthread+0x10/0x10
    [ 1.977763] ret_from_fork_asm+0x1a/0x30
    [ 1.977778] </TASK>
    [ 1.977781] ---[ end trace 0000000000000000 ]---

    With 6.1 kernels from Debian 12, no such problem exists.

    I think this is the same issue as reported upstream in https://lore.kernel.org/stable/20250503091422.0389.409509F4@e16-tech.com/
    .

    Can you confirm that the commit a9ae6fe1c319 ("blk-mq: create correct map for fallback case") fixes the issue for you as well?

    https://git.kernel.org/linus/a9ae6fe1c319c4776c2b11e85e15109cd3f04076

    Regards,
    Salvatore

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)