Hello guys. I'm migrating to 4.0 now and I have problem with panic on couple of my servers on 4.0. Servers crashes irregulary with page fault (6) - (/src/sys says that's an arthmetic fault). All servers crashes with the same EIP d02ce554, so I think it cannot be RAM. Machines have Pentium D with 1 GB ECC RAM, kernel GENERIC.MP. Dmesg and panic are below, moreover I will send you trace and ps from ddb if I catch them. ### BEGIN DMESG OpenBSD 4.0 (GENERIC.MP) #936: Sat Sep 16 19:27:28 MDT 2006 [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC.MP cpu0: Intel(R) Pentium(R) D CPU 3.00GHz ("GenuineIntel" 686-class) 3.01 GHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CF LUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,EST,CNXT-ID,CX16 real mem = 1073053696 (1047904K) avail mem = 970772480 (948020K) using 4256 buffers containing 53755904 bytes (52496K) of memory mainbus0 (root) bios0 at mainbus0: AT/286+(00) BIOS, date 08/22/06, BIOS32 rev. 0 @ 0xffe90, SMB IOS rev. 2.3 @ 0xfa3d0 (48 entries) bios0: Dell Computer Corporation PowerEdge 850 pcibios0 at bios0: rev 2.1 @ 0xf0000/0x10000 pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfb840/176 (9 entries) pcibios0: PCI Interrupt Router at 000:31:0 ("Intel 82801GB LPC" rev 0x00) pcibios0: PCI bus #7 is the last bus bios0: ROM list: 0xc0000/0xb000 0xcb000/0x1000 0xcc000/0x3c00 0xd0000/0x1600 0xd 1800/0x600 0xec000/0x4000! ipmi0 at mainbus0: version 1.5 interface KCS iobase 0xca8/8 spacing 4 mainbus0: Intel MP Specification (Version 1.4) (DELL PE 01B6 ) cpu0 at mainbus0: apid 0 (boot processor) cpu0: apic clock running at 200 MHz cpu1 at mainbus0: apid 1 (application processor) cpu1: Intel(R) Pentium(R) D CPU 3.00GHz ("GenuineIntel" 686-class) 3.01 GHz cpu1: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CF LUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,EST,CNXT-ID,CX16 mainbus0: bus 0 is type PCI mainbus0: bus 1 is type PCI mainbus0: bus 2 is type PCI mainbus0: bus 3 is type PCI mainbus0: bus 4 is type PCI mainbus0: bus 5 is type PCI mainbus0: bus 6 is type PCI mainbus0: bus 7 is type PCI mainbus0: bus 8 is type ISA ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins ioapic0: misconfigured as apic 0, remapped to apid 2 ioapic1 at mainbus0: apid 3 pa 0xfec10000, version 20, 24 pins ioapic1: misconfigured as apic 0, remapped to apid 3 pci0 at mainbus0 bus 0: configuration mode 1 (no bios) pchb0 at pci0 dev 0 function 0 "Intel E7230 MCH" rev 0x00 ppb0 at pci0 dev 1 function 0 "Intel E7230 PCIE" rev 0x00 pci1 at ppb0 bus 1 em0 at pci1 dev 0 function 0 "Intel PRO/1000 PT (82572EI)" rev 0x06: apic 2 int 16 (irq 5), address 00:15:17:15:9c:54 ppb1 at pci0 dev 28 function 0 "Intel 82801GB PCIE" rev 0x01 pci2 at ppb1 bus 2 ppb2 at pci2 dev 0 function 0 "Intel PCIE-PCIE" rev 0x09 pci3 at ppb2 bus 3 ppb3 at pci3 dev 2 function 0 vendor "Hint", unknown product 0x0022 rev 0x04 pci4 at ppb3 bus 4 vga1 at pci4 dev 2 function 0 "ATI Radeon VE QY" rev 0x00 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) vendor "Dell", unknown product 0x0010 (class undefined unknown subclass 0x00, re v 0x00) at pci4 dev 4 function 0 not configured "Dell DRAC 4 Virtual UART" rev 0x00 at pci4 dev 4 function 1 not configured "Dell DRAC 4 SMIC" rev 0x00 at pci4 dev 4 function 2 not configured pciide0 at pci4 dev 7 function 0 "CMD Technology PCI0680" rev 0x02 pciide0: bus-master DMA support present pciide0: channel 0 wired to native-PCI mode pciide0: using apic 3 int 0 (irq 5) for native-PCI interrupt atapiscsi0 at pciide0 channel 0 drive 0 scsibus0 at atapiscsi0: 2 targets sd0 at scsibus0 targ 0 lun 0: <DELL, VSF, 0123> SCSI0 0/direct removable sd0: drive offline atapiscsi1 at pciide0 channel 0 drive 1 scsibus1 at atapiscsi1: 2 targets cd0 at scsibus1 targ 0 lun 0: <DELL, VCD, 0133> SCSI0 5/cdrom removable sd0(pciide0:0:0): using PIO mode 3 cd0(pciide0:0:1): using PIO mode 3 pciide0: channel 1 wired to native-PCI mode ppb4 at pci0 dev 28 function 4 "Intel 82801G PCIE" rev 0x01 pci5 at ppb4 bus 5 bge0 at pci5 dev 0 function 0 "Broadcom BCM5721" rev 0x11, BCM5750 B1 (0x4101): apic 2 int 16 (irq 5), address 00:15:c5:fa:47:d2 brgphy0 at bge0 phy 1: BCM5750 10/100/1000baseT PHY, rev. 0 ppb5 at pci0 dev 28 function 5 "Intel 82801G PCIE" rev 0x01 pci6 at ppb5 bus 6 bge1 at pci6 dev 0 function 0 "Broadcom BCM5721" rev 0x11, BCM5750 B1 (0x4101): apic 2 int 17 (irq 3), address 00:15:c5:fa:47:d3 brgphy1 at bge1 phy 1: BCM5750 10/100/1000baseT PHY, rev. 0 uhci0 at pci0 dev 29 function 0 "Intel 82801GB USB" rev 0x01: apic 2 int 20 (irq 11) usb0 at uhci0: USB revision 1.0 uhub0 at usb0 uhub0: Intel UHCI root hub, rev 1.00/1.00, addr 1 uhub0: 2 ports with 2 removable, self powered uhci1 at pci0 dev 29 function 1 "Intel 82801GB USB" rev 0x01: apic 2 int 21 (irq 10) usb1 at uhci1: USB revision 1.0 uhub1 at usb1 uhub1: Intel UHCI root hub, rev 1.00/1.00, addr 1 uhub1: 2 ports with 2 removable, self powered uhci2 at pci0 dev 29 function 2 "Intel 82801GB USB" rev 0x01: apic 2 int 22 (irq 6) usb2 at uhci2: USB revision 1.0 uhub2 at usb2 uhub2: Intel UHCI root hub, rev 1.00/1.00, addr 1 uhub2: 2 ports with 2 removable, self powered ehci0 at pci0 dev 29 function 7 "Intel 82801GB USB" rev 0x01: apic 2 int 20 (irq 11) usb3 at ehci0: USB revision 2.0 uhub3 at usb3 uhub3: Intel EHCI root hub, rev 2.00/1.00, addr 1 uhub3: 6 ports with 6 removable, self powered ppb6 at pci0 dev 30 function 0 "Intel 82801BA AGP" rev 0xe1 pci7 at ppb6 bus 7 ichpcib0 at pci0 dev 31 function 0 "Intel 82801GB LPC" rev 0x01: PM disabled pciide1 at pci0 dev 31 function 1 "Intel 82801GB IDE" rev 0x01: DMA, channel 0 c onfigured to compatibility, channel 1 configured to compatibility atapiscsi2 at pciide1 channel 0 drive 0 scsibus2 at atapiscsi2: 2 targets cd1 at scsibus2 targ 0 lun 0: <TEAC, CD-ROM CD-224E-N, 3.AB> SCSI0 5/cdrom remov able cd1(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 2 pciide1: channel 1 ignored (disabled) pciide2 at pci0 dev 31 function 2 "Intel 82801GB SATA" rev 0x01: DMA, channel 0 configured to native-PCI, channel 1 configured to native-PCI pciide2: using apic 2 int 20 (irq 11) for native-PCI interrupt wd0 at pciide2 channel 0 drive 0: <WDC WD800JD-75MSA3> wd0: 16-sector PIO, LBA48, 76293MB, 156250000 sectors wd0(pciide2:0:0): using PIO mode 4, Ultra-DMA mode 5 ichiic0 at pci0 dev 31 function 3 "Intel 82801GB SMBus" rev 0x01pci_intr_map: bu s 0 dev 31 func 3 pin 2; line 10 pci_intr_map: no MP mapping found : irq 10 iic0 at ichiic0: disabled to avoid ipmi0 interactions isa0 at ichpcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pcppi0 at isa0 port 0x61 midi0 at pcppi0: <PC speaker> spkr0 at pcppi0 npx0 at isa0 port 0xf0/16: using exception 16 pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo biomask 0 netmask 0 ttymask 0 pctr: user-level cycle counter enabled uhidev0 at uhub2 port 2 configuration 1 interface 0 uhidev0: Avocent Dell 03R874, rev 1.10/1.00, addr 2, iclass 3/1 ukbd0 at uhidev0: 8 modifier keys, 6 key codes, country code 33 uhidev1 at uhub0 port 1 configuration 1 interface 0 uhidev1: Dell DRAC4, rev 1.10/0.00, addr 2, iclass 3/1 ukbd1 at uhidev1: 8 modifier keys, 6 key codes wskbd1 at ukbd0 mux 1 wskbd1: connecting to wsdisplay0 uhidev2 at uhub2 port 2 configuration 1 interface 1 uhidev2: Avocent Dell 03R874, rev 1.10/1.00, addr 2, iclass 3/1 uhidev2: 3 report ids ums0 at uhidev2 reportid 1: 5 buttons and Z dir. wsmouse0 at ums0 mux 0 uhid0 at uhidev2 reportid 2: input=2, output=0, feature=0 uhid1 at uhidev2 reportid 3: input=1, output=0, feature=0 wskbd2 at ukbd1 mux 1 wskbd2: connecting to wsdisplay0 uhidev3 at uhub0 port 1 configuration 1 interface 1 uhidev3: Dell DRAC4, rev 1.10/0.00, addr 2, iclass 3/1 ums1 at uhidev3 uhid1 at uhidev2 reportid 3: input=1, output=0, feature=0 wskbd2 at ukbd1 mux 1 wskbd2: connecting to wsdisplay0 uhidev3 at uhub0 port 1 configuration 1 interface 1 uhidev3: Dell DRAC4, rev 1.10/0.00, addr 2, iclass 3/1 ums1 at uhidev3 ums1: X report 0x0002 not supported dkcsum: wd0 matches BIOS drive 0x80 root on wd0a rootdev=0x0 rrootdev=0x300 rawdev=0x302 ### END DMESG
### BEGIN PANIC fatal page fault (6) in supervisor mode trap type 6 code 2 eip d02ce554 cs 8 eflags 10282 cr2 3a cpl 20 panic: trap type 6, code = 2 ,pc=d02ce554 Starting stack trace... panic (20,0,e9184ea0,20) at panic+0x71 panic(d068ba47,6,2,d02ce554,d73ee028) at panic+0x71 trap() at trap+0x13d ---trap (number 6) --- bmc_io_wait(d1affa00,d1b21e80,0,e9183000,0) at _bmc_io_wait+0x1c softclock(e9180058,e9180010,10,e9183000) at softclock+0x22c bad frame pointer: 0xe9184f20 end of stack trace syncing disks... ### END PANIC