Date: Sat, 02 Aug 2025 11:45:37 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 288607] MCA kernel panic on non-existent BANK 8 Message-ID: <bug-288607-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=288607 Bug ID: 288607 Summary: MCA kernel panic on non-existent BANK 8 Product: Base System Version: 14.3-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: dirkx@webweaving.org Fresh 14.3 machine on hardware that has been stable past 5 years; regular reboots after about 5 hours of uptime. Message just before reboot shows an MCA error in Bank 8. uname: FreeBSD jade.hostname 14.3-RELEASE FreeBSD 14.3-RELEASE releng/14.3-n271432-8c9ce319fef7 GENERIC amd64 dmidecode -t memory | grep BANK Bank Locator: BANK 0 Bank Locator: BANK 1 Bank Locator: BANK 2 Bank Locator: BANK 3 (full dmidecode at the end) Aug 2 06:25:37 hostname syslogd: kernel boot file is /boot/kernel/kernel Aug 2 06:25:37 hostname kernel: MCA: Bank 8, Status 0xbe20000000011152 Aug 2 06:25:37 hostname syslogd: last message repeated 4 times Aug 2 06:25:37 hostname kernel: MCA: Global Cap 0x0000000000000c09, Status 0x0000000000000005 Aug 2 06:25:37 hostname syslogd: last message repeated 1 times Aug 2 06:25:37 hostname kernel: MCA: Bank 8, Status 0xbe20000000011152 Aug 2 06:25:37 hostname kernel: MCA: Vendor "GenuineIntel", ID 0x306a9, APIC ID 3 Aug 2 06:25:37 hostname kernel: MCA: CPU 3 UNCOR EN MCA: Bank 8, Status 0xbe20000000011152 Aug 2 06:25:37 hostname kernel: MCA: Global Cap 0x0000000000000c09, Status 0x0000000000000005 Aug 2 06:25:37 hostname syslogd: last message repeated 1 times Aug 2 06:25:37 hostname kernel: MCA: Bank 8, Status 0xbe20000000011152 Aug 2 06:25:37 hostname kernel: MCA: Vendor "GenuineIntel", ID 0x306a9, APIC ID 4 Aug 2 06:25:37 hostname kernel: MCA: Global Cap 0x0000000000000c09, Status 0x0000000000000005 Aug 2 06:25:37 hostname kernel: MCA: Vendor "GenuineIntel", ID 0x306a9, APIC ID 7 Aug 2 06:25:37 hostname kernel: MCA: Global Cap 0x0000000000000c09, Status 0x0000000000000005 Aug 2 06:25:37 hostname kernel: MCA: Vendor "GenuineIntel", ID 0x306a9, APIC ID 1 Aug 2 06:25:37 hostname kernel: MCA: CPU 1 UNCOR EN PCC ICACHE L2 IRD error Aug 2 06:25:37 hostname kernel: MCA: Address 0xae5b40MCA: Vendor "GenuineIntel", ID 0x306a9, APIC ID 5 Aug 2 06:25:37 hostname kernel: MCA: Global Cap 0x0000000000000c09, Status 0x0000000000000005 Aug 2 06:25:37 hostname kernel: MCA: CPU 5 MCA: Vendor "GenuineIntel", ID 0x306a9, APIC ID 6 Aug 2 06:25:37 hostname kernel: MCA: CPU 7 UNCOR EN PCC ICACHE L2 IRD errorMCA: CPU 6 UNCOR EN PCC ICACHE L2 IRD error Aug 2 06:25:37 hostname kernel: MCA: Address 0xae5b40MCA: Vendor "GenuineIntel", ID 0x306a9, APIC ID 2 Aug 2 06:25:37 hostname kernel: MCA: Global Cap 0x0000000000000c09, Status 0x0000000000000005 Aug 2 06:25:37 hostname kernel: MCA: Vendor "GenuineIntel", ID 0x306a9, APIC ID 0 Aug 2 06:25:37 hostname kernel: UNCOR MCA: CPU 0 UNCOR EN PCC ICACHE L2 IRD error Aug 2 06:25:37 hostname kernel: MCA: Address 0xae5b40 Aug 2 06:25:37 hostname kernel: MCA: Misc 0x702203c086 Aug 2 06:25:37 hostname kernel: panic: Unrecoverable machine check exception Aug 2 06:25:37 hostname kernel: cpuid = 0 Aug 2 06:25:37 hostname kernel: time = 1754115805 Aug 2 06:25:37 hostname kernel: KDB: stack backtrace: Aug 2 06:25:37 hostname kernel: Uptime: 14h26m11s And at this point ---<<BOOT>>--- # dmidecode -t memory # dmidecode 3.6 Scanning /dev/mem for entry point. SMBIOS 2.7 present. Handle 0x005D, DMI type 17, 34 bytes Memory Device Array Handle: 0x005E Error Information Handle: 0x0062 Total Width: 64 bits Data Width: 64 bits Size: 8 GB Form Factor: DIMM Set: None Locator: ChannelA-DIMM0 Bank Locator: BANK 0 Type: DDR3 Type Detail: Synchronous Speed: 1600 MT/s Manufacturer: 859B Serial Number: A10FD65E Asset Tag: 9876543210 Part Number: CT102464BA160B.C16 Rank: 2 Configured Memory Speed: 1600 MT/s Handle 0x005E, DMI type 16, 23 bytes Physical Memory Array Location: System Board Or Motherboard Use: System Memory Error Correction Type: None Maximum Capacity: 32 GB Error Information Handle: 0x005F Number Of Devices: 4 Handle 0x0061, DMI type 17, 34 bytes Memory Device Array Handle: 0x005E Error Information Handle: No Error Total Width: 64 bits Data Width: 64 bits Size: 8 GB Form Factor: DIMM Set: None Locator: ChannelA-DIMM1 Bank Locator: BANK 1 Type: DDR3 Type Detail: Synchronous Speed: 1600 MT/s Manufacturer: 859B Serial Number: A10FD67B Asset Tag: 9876543210 Part Number: CT102464BA160B.C16 Rank: 2 Configured Memory Speed: 1600 MT/s Handle 0x0064, DMI type 17, 34 bytes Memory Device Array Handle: 0x005E Error Information Handle: 0x0065 Total Width: 64 bits Data Width: 64 bits Size: 8 GB Form Factor: DIMM Set: None Locator: ChannelB-DIMM0 Bank Locator: BANK 2 Type: DDR3 Type Detail: Synchronous Speed: 1600 MT/s Manufacturer: 859B Serial Number: A3188697 Asset Tag: 9876543210 Part Number: CT102464BA160B.C16 Rank: 2 Configured Memory Speed: 1600 MT/s Handle 0x0067, DMI type 17, 34 bytes Memory Device Array Handle: 0x005E Error Information Handle: No Error Total Width: 64 bits Data Width: 64 bits Size: 8 GB Form Factor: DIMM Set: None Locator: ChannelB-DIMM1 Bank Locator: BANK 3 Type: DDR3 Type Detail: Synchronous Speed: 1600 MT/s Manufacturer: 859B Serial Number: A4115DDA Asset Tag: 9876543210 Part Number: CT102464BA160B.C16 Rank: 2 Configured Memory Speed: 1600 MT/s # dmesg ---<<BOOT>>--- Copyright (c) 1992-2023 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 14.3-RELEASE releng/14.3-n271432-8c9ce319fef7 GENERIC amd64 FreeBSD clang version 19.1.7 (https://github.com/llvm/llvm-project.git llvmorg-19.1.7-0-gcd708029e0b2) VT(vga): resolution 640x480 CPU: Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz (3400.13-MHz K8-class CPU) Origin="GenuineIntel" Id=0x306a9 Family=0x6 Model=0x3a Stepping=9 Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> Features2=0x7fbae3ff<SSE3,PCLMULQDQ,DTES64,MON,DS_CPL,VMX,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,TSCDLT,AESNI,XSAVE,OSXSAVE,AVX,F16C,RDRAND> AMD Features=0x28100800<SYSCALL,NX,RDTSCP,LM> AMD Features2=0x1<LAHF> Structured Extended Features=0x281<FSGSBASE,SMEP,ERMS> Structured Extended Features3=0x9c000000<IBPB,STIBP,L1DFL,SSBD> XSAVE Features=0x1<XSAVEOPT> VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID TSC: P-state invariant, performance statistics real memory = 34359738368 (32768 MB) avail memory = 33275420672 (31733 MB) Event timer "LAPIC" quality 600 ACPI APIC Table: <ALASKA A M I> FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs FreeBSD/SMP: 1 package(s) x 4 core(s) x 2 hardware threads random: registering fast source Intel Secure Key RNG random: fast provider: "Intel Secure Key RNG" random: unblocking device. ioapic0 <Version 2.0> irqs 0-23 Launching APs: 1 7 6 4 3 2 5 random: entropy device external interface kbd1 at kbdmux0 vtvga0: <VT VGA driver> smbios0: <System Management BIOS> at iomem 0xf04c0-0xf04de smbios0: Entry point: v2.1 (32-bit), Version: 2.7, BCD Revision: 2.7 aesni0: <AES-CBC,AES-CCM,AES-GCM,AES-ICM,AES-XTS> acpi0: <ALASKA A M I> acpi0: Power Button (fixed) cpu0: <ACPI CPU> on acpi0 hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0 Timecounter "HPET" frequency 14318180 Hz quality 950 Event timer "HPET" frequency 14318180 Hz quality 550 atrtc0: <AT realtime clock> port 0x70-0x77 irq 8 on acpi0 atrtc0: Warning: Couldn't map I/O. atrtc0: registered as a time-of-day clock, resolution 1.000000s Event timer "RTC" frequency 32768 Hz quality 0 attimer0: <AT timer> port 0x40-0x43,0x50-0x53 irq 0 on acpi0 Timecounter "i8254" frequency 1193182 Hz quality 0 Event timer "i8254" frequency 1193182 Hz quality 100 Timecounter "ACPI-fast" frequency 3579545 Hz quality 900 acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0 pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0 pci0: <ACPI PCI bus> on pcib0 pcib1: <ACPI PCI-PCI bridge> irq 16 at device 1.0 on pci0 pci1: <ACPI PCI bus> on pcib1 vgapci0: <VGA-compatible display> port 0xf000-0xf03f mem 0xf7800000-0xf7bfffff,0xe0000000-0xefffffff irq 16 at device 2.0 on pci0 vgapci0: Boot video device pci0: <simple comms> at device 22.0 (no driver attached) ehci0: <Intel Panther Point USB 2.0 controller> mem 0xf7d08000-0xf7d083ff irq 23 at device 26.0 on pci0 usbus0: EHCI version 1.0 usbus0 on ehci0 usbus0: 480Mbps High Speed USB v2.0 hdac0: <Intel Panther Point HDA Controller> mem 0xf7d00000-0xf7d03fff irq 22 at device 27.0 on pci0 pcib2: <ACPI PCI-PCI bridge> irq 16 at device 28.0 on pci0 pci2: <ACPI PCI bus> on pcib2 pcib3: <ACPI PCI-PCI bridge> irq 16 at device 28.4 on pci0 pci3: <ACPI PCI bus> on pcib3 re0: <RealTek 8168/8111 B/C/CP/D/DP/E/F/G PCIe Gigabit Ethernet> port 0xe000-0xe0ff mem 0xf0004000-0xf0004fff,0xf0000000-0xf0003fff irq 16 at device 0.0 on pci3 re0: Using 1 MSI-X message re0: turning off MSI enable bit. re0: Chip rev. 0x48000000 re0: MAC rev. 0x00000000 miibus0: <MII bus> on re0 rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interface> PHY 1 on miibus0 rgephy0: none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow, 100baseTX, 100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT-FDX, 1000baseT-FDX-master, 1000baseT-FDX-flow, 1000baseT-FDX-flow-master, auto, auto-flow re0: Using defaults for TSO: 65518/35/2048 re0: Ethernet address: 50:46:5d:9f:65:f2 re0: netmap queues/slots: TX 1/256, RX 1/256 pcib4: <ACPI PCI-PCI bridge> irq 18 at device 28.6 on pci0 pci4: <ACPI PCI bus> on pcib4 ahci0: <Marvell 88SE9172 AHCI SATA controller> port 0xd040-0xd047,0xd030-0xd033,0xd020-0xd027,0xd010-0xd013,0xd000-0xd00f mem 0xf7c10000-0xf7c101ff irq 18 at device 0.0 on pci4 ahci0: AHCI v1.00 with 2 6Gbps ports, Port Multiplier supported with FBS ahci0: quirks=0x1000000<IOMMU_BUSWIDE> ahcich0: <AHCI channel> at channel 0 on ahci0 ahcich1: <AHCI channel> at channel 1 on ahci0 ehci1: <Intel Panther Point USB 2.0 controller> mem 0xf7d07000-0xf7d073ff irq 23 at device 29.0 on pci0 usbus1: EHCI version 1.0 usbus1 on ehci1 usbus1: 480Mbps High Speed USB v2.0 isab0: <PCI-ISA bridge> at device 31.0 on pci0 isa0: <ISA bus> on isab0 ahci1: <Intel Panther Point AHCI SATA controller> port 0xf0b0-0xf0b7,0xf0a0-0xf0a3,0xf090-0xf097,0xf080-0xf083,0xf060-0xf07f mem 0xf7d06000-0xf7d067ff irq 19 at device 31.2 on pci0 ahci1: AHCI v1.30 with 6 6Gbps ports, Port Multiplier not supported ahcich2: <AHCI channel> at channel 0 on ahci1 ahcich3: <AHCI channel> at channel 1 on ahci1 ahcich4: <AHCI channel> at channel 2 on ahci1 ahcich5: <AHCI channel> at channel 3 on ahci1 ahcich6: <AHCI channel> at channel 4 on ahci1 ahcich7: <AHCI channel> at channel 5 on ahci1 ahciem0: <AHCI enclosure management bridge> on ahci1 acpi_button0: <Power Button> on acpi0 acpi_tz0: <Thermal Zone> on acpi0 acpi_tz1: <Thermal Zone> on acpi0 atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0 atkbd0: <AT Keyboard> irq 1 on atkbdc0 kbd0 at atkbd0 atkbd0: [GIANT-LOCKED] orm0: <ISA Option ROMs> at iomem 0xc0000-0xce7ff,0xce800-0xd17ff,0xd1800-0xd27ff pnpid ORM0000 on isa0 est0: <Enhanced SpeedStep Frequency Control> on cpu0 cpufreq0: <CPU frequency control> on cpu0 cpufreq1: <CPU frequency control> on cpu1 cpufreq2: <CPU frequency control> on cpu2 cpufreq3: <CPU frequency control> on cpu3 cpufreq4: <CPU frequency control> on cpu4 cpufreq5: <CPU frequency control> on cpu5 cpufreq6: <CPU frequency control> on cpu6 cpufreq7: <CPU frequency control> on cpu7 Timecounter "TSC-low" frequency 1700000097 Hz quality 1000 Timecounters tick every 1.000 msec ugen1.1: <Intel EHCI root HUB> at usbus1 ugen0.1: <Intel EHCI root HUB> at usbus0 uhub0 on usbus1 uhub0: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus1 ZFS filesystem version: 5 ZFS storage pool version: features support (5000) uhub1 on usbus0 uhub1: <Intel EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus0 hdacc0: <Realtek ALC892 HDA CODEC> at cad 0 on hdac0 hdaa0: <Realtek ALC892 Audio Function Group> at nid 1 on hdacc0 pcm0: <Realtek ALC892 (Rear Analog 7.1/2.0)> at nid 20,22,21,23 and 24,26 on hdaa0 pcm1: <Realtek ALC892 (Front Analog)> at nid 27 and 25 on hdaa0 pcm2: <Realtek ALC892 (Rear Digital)> at nid 30 on hdaa0 pcm3: <Realtek ALC892 (Onboard Digital)> at nid 17 on hdaa0 hdacc1: <Intel Panther Point HDA CODEC> at cad 3 on hdac0 hdaa1: <Intel Panther Point Audio Function Group> at nid 1 on hdacc1 pcm4: <Intel Panther Point (HDMI/DP 8ch)> at nid 5 on hdaa1 pcm5: <Intel Panther Point (HDMI/DP 8ch)> at nid 7 on hdaa1 Trying to mount root from zfs:zroot/ROOT/default []... ada0 at ahcich1 bus 0 scbus1 target 0 lun 0 ada0: <HGST HMS5C4040BLE640 MPAOA5D0> ATA8-ACS SATA 3.x device ada0: Serial Number PL2331LAGUP9BJ ada0: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes) ada0: Command Queueing enabled ada0: 3815447MB (7814037168 512 byte sectors) ada1 at ahcich2 bus 0 scbus2 target 0 lun 0 ada1: <HGST HMS5C4040BLE640 MPAOA5D0> ATA8-ACS SATA 3.x device ada1: Serial Number PL2331LAGUSZYJ ada1: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes) ada1: Command Queueing enabled ada1: 3815447MB (7814037168 512 byte sectors) ada2 at ahcich3 bus 0 scbus3 target 0 lun 0 ada2: <HGST HMS5C4040BLE640 MPAOA5D0> ATA8-ACS SATA 3.x device ada2: Serial Number PL2331LAGUT00J ada2: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes) ada2: Command Queueing enabled ada2: 3815447MB (7814037168 512 byte sectors) ada3 at ahcich4 bus 0 scbus4 target 0 lun 0 ada3: <HGST HMS5C4040BLE640 MPAOA5D0> ATA8-ACS SATA 3.x device ada3: Serial Number PL2331LAGUT6MJ ada3: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada3: Command Queueing enabled ada3: 3815447MB (7814037168 512 byte sectors) ada4 at ahcich5 bus 0 scbus5 target 0 lun 0 ada4: <HGST HMS5C4040BLE640 MPAOA5D0> ATA8-ACS SATA 3.x device ada4: Serial Number PL2331LAGUT3XJ ada4: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada4: Command Queueing enabled ada4: 3815447MB (7814037168 512 byte sectors) ada5 at ahcich6 bus 0 scbus6 target 0 lun 0 ada5: <HGST HMS5C4040BLE640 MPAOA5D0> ATA8-ACS SATA 3.x device ada5: Serial Number PL2331LAGUSZAJ ada5: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada5: Command Queueing enabled ada5: 3815447MB (7814037168 512 byte sectors) ada6 at ahcich7 bus 0 scbus7 target 0 lun 0 ada6: <HGST HMS5C4040BLE640 MPAOA5D0> ATA8-ACS SATA 3.x device ada6: Serial Number PL2331LAGUT0YJ ada6: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada6: Command Queueing enabled ada6: 3815447MB (7814037168 512 byte sectors) ses0 at ahciem0 bus 0 scbus8 target 0 lun 0 ses0: <AHCI SGPIO Enclosure 2.00 0001> SEMB S-E-S 2.00 device ses0: SEMB SES Device ses0: ada1,pass1 in 'Slot 00', SATA Slot: scbus2 target 0 ses0: ada2,pass2 in 'Slot 01', SATA Slot: scbus3 target 0 ses0: ada3,pass3 in 'Slot 02', SATA Slot: scbus4 target 0 ses0: ada4,pass4 in 'Slot 03', SATA Slot: scbus5 target 0 ses0: ada5,pass5 in 'Slot 04', SATA Slot: scbus6 target 0 ses0: ada6,pass6 in 'Slot 05', SATA Slot: scbus7 target 0 uhub0: 2 ports with 2 removable, self powered uhub1: 2 ports with 2 removable, self powered GEOM_MIRROR: Device mirror/swap launched (7/7). Root mount waiting for: usbus0 usbus1 ugen1.2: <vendor 0x8087 product 0x0024> at usbus1 uhub2 on uhub0 uhub2: <vendor 0x8087 product 0x0024, class 9/0, rev 2.00/0.00, addr 2> on usbus1 ugen0.2: <vendor 0x8087 product 0x0024> at usbus0 uhub3 on uhub1 uhub3: <vendor 0x8087 product 0x0024, class 9/0, rev 2.00/0.00, addr 2> on usbus0 Root mount waiting for: usbus0 usbus1 uhub3: 6 ports with 6 removable, self powered uhub2: 8 ports with 8 removable, self powered GEOM_ELI: Device mirror/swap.eli created. GEOM_ELI: Encryption: AES-XTS 128 GEOM_ELI: Crypto: accelerated software ichsmb0: <Intel Panther Point SMBus controller> port 0xf040-0xf05f mem 0xf7d05000-0xf7d050ff irq 18 at device 31.3 on pci0 smbus0: <System Management Bus> on ichsmb0 acpi_wmi0: <ACPI-WMI mapping> on acpi0 acpi_wmi0: cannot find EC device acpi_wmi0: Embedded MOF found ACPI: \134AMW0.WQMO: 1 arguments were passed to a non-method ACPI object (Buffer) (20221020/nsarguments-361) re0: link state changed to UP lo0: link state changed to UP re0: link state changed to DOWN re0: link state changed to UP pflog0: promiscuous mode enabled Security policy loaded: MAC/ntpd (mac_ntpd) ovpn0: changing name to 'tun0' tun0: link state changed to UP wg0: link state changed to UP -- You are receiving this mail because: You are the assignee for the bug.home | help
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