Hello. I have more than 30 Supermicro servers with same config and on all of them I get kernel panic. Here is the screenshots of kgdb output: http://lexasoft.ru/metamphetamine/Panic/Picture%2073.png http://lexasoft.ru/metamphetamine/Panic/Picture%2074.png http://lexasoft.ru/metamphetamine/Panic/Picture%2075.png http://lexasoft.ru/metamphetamine/Panic/Picture%2076.png http://lexasoft.ru/metamphetamine/Panic/Picture%2077.png http://lexasoft.ru/metamphetamine/Panic/Picture%2078.png http://lexasoft.ru/metamphetamine/Panic/Picture%2079.png http://lexasoft.ru/metamphetamine/Panic/Picture%2080.png http://lexasoft.ru/metamphetamine/Panic/Picture%2080.png http://lexasoft.ru/metamphetamine/Panic/Picture%2082.png http://lexasoft.ru/metamphetamine/Panic/Picture%2083.png Here is dmesg output: Copyright (c) 1992-2009 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 7.2-STABLE #0: Wed Aug 12 01:06:04 MSD 2009 root@st2.srv.getthebit.com:/usr/obj/usr/src/sys/STORAGE WARNING: WITNESS option enabled, expect reduced performance. Timecounter "i8254" frequency 1193182 Hz quality 0 CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz (2992.52-MHz K8-class CPU) Origin = "GenuineIntel" Id = 0xf65 Stepping = 5 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=0xe59d<SSE3,DTES64,MON,DS_CPL,EST,TM2,CNXT-ID,CX16,xTPR,PDCM> AMD Features=0x20100800<SYSCALL,NX,LM> AMD Features2=0x1<LAHF> TSC: P-state invariant Logical CPUs per core: 2 usable memory = 2132484096 (2033 MB) avail memory = 2056134656 (1960 MB) ACPI APIC Table: <PTLTD APIC > FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs cpu0 (BSP): APIC ID: 0 cpu1 (AP/HT): APIC ID: 1 ioapic0 <Version 2.0> irqs 0-23 on motherboard ioapic1 <Version 2.0> irqs 24-47 on motherboard kbd1 at kbdmux0 acpi0: <PTLTD RSDT> on motherboard acpi0: [ITHREAD] acpi0: Power Button (fixed) Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000 acpi_timer0: <24-bit timer at 3.579545MHz> port 0x1008-0x100b 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 pcib2: <ACPI PCI-PCI bridge> irq 17 at device 28.0 on pci0 pci9: <ACPI PCI bus> on pcib2 pcib3: <ACPI PCI-PCI bridge> at device 0.0 on pci9 pci10: <ACPI PCI bus> on pcib3 pcib4: <ACPI PCI-PCI bridge> irq 17 at device 28.4 on pci0 pci13: <ACPI PCI bus> on pcib4 em0: <Intel(R) PRO/1000 Network Connection 6.9.6> port 0x4000-0x401f mem 0xe8000000-0xe801ffff irq 16 at device 0.0 on pci13 em0: Using MSI interrupt em0: [FILTER] em0: Ethernet address: 00:30:48:91:93:40 pcib5: <ACPI PCI-PCI bridge> irq 16 at device 28.5 on pci0 pci14: <ACPI PCI bus> on pcib5 em1: <Intel(R) PRO/1000 Network Connection 6.9.6> port 0x5000-0x501f mem 0xe8200000-0xe821ffff irq 17 at device 0.0 on pci14 em1: Using MSI interrupt em1: [FILTER] em1: Ethernet address: 00:30:48:91:93:41 uhci0: <UHCI (generic) USB controller> port 0x3000-0x301f irq 23 at device 29.0 on pci0 uhci0: [GIANT-LOCKED] uhci0: [ITHREAD] usb0: <UHCI (generic) USB controller> on uhci0 usb0: USB revision 1.0 uhub0: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0 uhub0: 2 ports with 2 removable, self powered uhci1: <UHCI (generic) USB controller> port 0x3020-0x303f irq 19 at device 29.1 on pci0 uhci1: [GIANT-LOCKED] uhci1: [ITHREAD] usb1: <UHCI (generic) USB controller> on uhci1 usb1: USB revision 1.0 uhub1: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb1 uhub1: 2 ports with 2 removable, self powered uhci2: <UHCI (generic) USB controller> port 0x3040-0x305f irq 18 at device 29.2 on pci0 uhci2: [GIANT-LOCKED] uhci2: [ITHREAD] usb2: <UHCI (generic) USB controller> on uhci2 usb2: USB revision 1.0 uhub2: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb2 uhub2: 2 ports with 2 removable, self powered uhci3: <UHCI (generic) USB controller> port 0x3060-0x307f irq 16 at device 29.3 on pci0 uhci3: [GIANT-LOCKED] uhci3: [ITHREAD] usb3: <UHCI (generic) USB controller> on uhci3 usb3: USB revision 1.0 uhub3: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb3 uhub3: 2 ports with 2 removable, self powered ehci0: <Intel 82801GB/R (ICH7) USB 2.0 controller> mem 0xe8600000-0xe86003ff irq 23 at device 29.7 on pci0 ehci0: [GIANT-LOCKED] ehci0: [ITHREAD] usb4: EHCI version 1.0 usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3 usb4: <Intel 82801GB/R (ICH7) USB 2.0 controller> on ehci0 usb4: USB revision 2.0 uhub4: <Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb4 uhub4: 8 ports with 8 removable, self powered pcib6: <ACPI PCI-PCI bridge> at device 30.0 on pci0 pci15: <ACPI PCI bus> on pcib6 vgapci0: <VGA-compatible display> port 0x6000-0x60ff mem 0xe0000000-0xe7ffffff,0xe8300000-0xe830ffff irq 16 at device 0.0 on pci15 isab0: <PCI-ISA bridge> at device 31.0 on pci0 isa0: <ISA bus> on isab0 atapci0: <Intel ICH7 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x30a0-0x30af at device 31.1 on pci0 ata0: <ATA channel 0> on atapci0 ata0: [ITHREAD] atapci1: <Intel ICH7 SATA300 controller> port 0x30e8-0x30ef,0x30dc-0x30df,0x30e0-0x30e7,0x30d8-0x30db,0x30b0-0x30bf mem 0xe8600400-0xe86007ff irq 19 at device 31.2 on pci0 atapci1: [ITHREAD] ata2: <ATA channel 0> on atapci1 ata2: [ITHREAD] ata3: <ATA channel 1> on atapci1 ata3: [ITHREAD] pci0: <serial bus, SMBus> at device 31.3 (no driver attached) acpi_button0: <Power Button> 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] atkbd0: [ITHREAD] sio0: configured irq 4 not in bitmap of probed irqs 0 sio0: port may not be enabled sio0: configured irq 4 not in bitmap of probed irqs 0 sio0: port may not be enabled sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 sio0: type 16550A sio0: [FILTER] sio1: configured irq 3 not in bitmap of probed irqs 0 sio1: port may not be enabled sio1: configured irq 3 not in bitmap of probed irqs 0 sio1: port may not be enabled sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0 sio1: type 16550A sio1: [FILTER] fdc0: <floppy drive controller> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0 fdc0: does not respond device_attach: fdc0 attach returned 6 ppc0: <Parallel port> port 0x378-0x37f,0x778-0x77f irq 7 drq 3 on acpi0 ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode ppc0: FIFO with 16/16/9 bytes threshold ppbus0: <Parallel port bus> on ppc0 ppbus0: [ITHREAD] plip0: <PLIP network interface> on ppbus0 plip0: WARNING: using obsoleted IFF_NEEDSGIANT flag lpt0: <Printer> on ppbus0 lpt0: Interrupt-driven port ppi0: <Parallel I/O> on ppbus0 ppc0: [GIANT-LOCKED] ppc0: [ITHREAD] cpu0: <ACPI CPU> on acpi0 est0: <Enhanced SpeedStep Frequency Control> on cpu0 est: CPU supports Enhanced Speedstep, but is not recognized. est: cpu_vendor GenuineIntel, msr f2700000f27 device_attach: est0 attach returned 6 p4tcc0: <CPU Frequency Thermal Control> on cpu0 cpu1: <ACPI CPU> on acpi0 est1: <Enhanced SpeedStep Frequency Control> on cpu1 est: CPU supports Enhanced Speedstep, but is not recognized. est: cpu_vendor GenuineIntel, msr f2700000f27 device_attach: est1 attach returned 6 p4tcc1: <CPU Frequency Thermal Control> on cpu1 fdc0: <floppy drive controller> port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0 fdc0: does not respond device_attach: fdc0 attach returned 6 orm0: <ISA Option ROMs> at iomem 0xc0000-0xcafff,0xcb000-0xcbfff,0xcc000-0xccfff on isa0 sc0: <System console> at flags 0x100 on isa0 sc0: VGA <16 virtual consoles, flags=0x300> vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0 Timecounters tick every 1.000 msec acd0: CDROM <CD-224E-N/1.AA> at ata0-slave UDMA33 ad4: 381554MB <Seagate ST3400632NS 5.01> at ata2-master SATA150 ad5: 381554MB <Seagate ST3400632NS 5.01> at ata2-slave SATA150 ad6: 381554MB <Seagate ST3400632NS 5.01> at ata3-master SATA150 ad7: 476940MB <Seagate ST3500630AS 3.AAK> at ata3-slave SATA150 SMP: AP CPU #1 Launched! WARNING: WITNESS option enabled, expect reduced performance. Trying to mount root from ufs:/dev/ad4s1a WARNING: / was not properly dismounted WARNING: /data1 was not properly dismounted WARNING: /data2 was not properly dismounted WARNING: /data3 was not properly dismounted WARNING: /data4 was not properly dismounted WARNING: /tmp was not properly dismounted WARNING: /usr was not properly dismounted /usr: mount pending error: blocks 176 files 26 WARNING: /var was not properly dismounted /var: mount pending error: blocks 44 files 11 em0: link state changed to UP I have vmcore in /var/crash folder. What debug information is needed to debug this problem? -- (\__/) (='.'=) E[: | | | | :]? (")_(") Alexey Tarasov