I pulled down the latest CVS this morning (around 1800 UTC on 4 Jan 2010) and built the kernel according to the FAQ, nothing special included, just GENERIC.MP, and I've made no hardware changes to the system. When I boot using a 1 Jan kernel, there are no issues. When I reboot after building the new kernel, the system boots up until you get to "scsibus0 at atapiscsi0: 2 targets", and then hangs. no crash, just stops booting.
I've managed to track it down to my DVD drive. If I remove the drive from the laptop and boot with the new kernel, there are no issues. Here is what the 1 Jan kernel says the DVD is: cd0 at scsibus0 targ 0 lun 0: <TSSTcorp, DVD+-RW TS-L632H, D600> ATAPI 5/cdrom removable cd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 I cannot see a difference in the dmesg from 1 Jan and 4 Jan up to the point where 4 Jan hangs. Even setting "verbose" at the "boot" prompt shows nothing. As this laptop does not have a serial port, I can only give a dmesg from the 1Jan kernel. If you require more information, please reply. Dmesg from 1 Jan is below. Regards, Bryan Brake OpenBSD 4.6-current (build) #0: Fri Jan 1 04:55:44 CST 2010 r...@2-core.my.domain:/usr/build cpu0: Intel(R) Core(TM)2 Duo CPU T5250 @ 1.50GHz ("GenuineIntel" 686-class) 1.50 GHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,EST,TM2,CX16,xTPR real mem = 3747627008 (3574MB) avail mem = 3647549440 (3478MB) mainbus0 at root bios0 at mainbus0: AT/286+ BIOS, date 07/11/08, BIOS32 rev. 0 @ 0xffa10, SMBIOS rev. 2.4 @ 0xf7180 (45 entries) bios0: vendor Dell Inc. version "A09" date 07/11/2008 bios0: Dell Inc. Inspiron 1520 acpi0 at bios0: rev 2 acpi0: tables DSDT FACP HPET APIC MCFG SLIC BOOT SSDT acpi0: wakeup devices PCI0(S3) PCIE(S4) USB1(S0) USB2(S0) USB3(S0) USB4(S0) USB5(S0) EHC2(S0) EHCI(S0) AZAL(S3) RP01(S3) RP02(S3) RP03(S3) RP04(S3) RP05(S3) RP06(S3) LID_(S3) PBTN(S4) MBTN(S5) acpitimer0 at acpi0: 3579545 Hz, 24 bits acpihpet0 at acpi0: 14318179 Hz acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: apic clock running at 166MHz cpu1 at mainbus0: apid 1 (application processor) cpu1: Intel(R) Core(TM)2 Duo CPU T5250 @ 1.50GHz ("GenuineIntel" 686-class) 1.50 GHz cpu1: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,EST,TM2,CX16,xTPR ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins ioapic0: misconfigured as apic 0, remapped to apid 2 acpiprt0 at acpi0: bus 3 (PCIE) acpiprt1 at acpi0: bus -1 (AGP_) acpiprt2 at acpi0: bus 11 (RP01) acpiprt3 at acpi0: bus -1 (RP02) acpiprt4 at acpi0: bus -1 (RP03) acpiprt5 at acpi0: bus 12 (RP04) acpiprt6 at acpi0: bus -1 (RP05) acpiprt7 at acpi0: bus -1 (RP06) acpiprt8 at acpi0: bus 0 (PCI0) acpicpu0 at acpi0: C3, C2, C1, PSS acpicpu1 at acpi0: C3, C2, C1, PSS acpitz0 at acpi0: critical temperature 87 degC acpibtn0 at acpi0: LID_ acpibtn1 at acpi0: PBTN acpibtn2 at acpi0: SBTN acpiac0 at acpi0: AC unit online acpibat0 at acpi0: BAT0 model "DELL UW2807" serial 235 type LION oem "Sanyo" acpivideo0 at acpi0: VID_ acpivout0 at acpivideo0: TV__ acpivout1 at acpivideo0: CRT_ acpivout2 at acpivideo0: LCD_ acpivout3 at acpivideo0: DVI_ acpivideo1 at acpi0: VID_ acpivout4 at acpivideo1: TV__ acpivout5 at acpivideo1: CRT_ acpivout6 at acpivideo1: LCD_ acpivout7 at acpivideo1: DVI_ acpivideo2 at acpi0: VID2 bios0: ROM list: 0xc0000/0xf000! 0xcf000/0x1000 cpu0: Enhanced SpeedStep 1496 MHz: speeds: 1500, 1000 MHz pci0 at mainbus0 bus 0: configuration mode 1 (bios) pchb0 at pci0 dev 0 function 0 "Intel GM965 Host" rev 0x0c vga1 at pci0 dev 2 function 0 "Intel GM965 Video" rev 0x0c wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) intagp0 at vga1 agp0 at intagp0: aperture at 0xe0000000, size 0x10000000 inteldrm0 at vga1: apic 2 int 16 (irq 11) drm0 at inteldrm0 "Intel GM965 Video" rev 0x0c at pci0 dev 2 function 1 not configured uhci0 at pci0 dev 26 function 0 "Intel 82801H USB" rev 0x02: apic 2 int 20 (irq 10) uhci1 at pci0 dev 26 function 1 "Intel 82801H USB" rev 0x02: apic 2 int 21 (irq 9) ehci0 at pci0 dev 26 function 7 "Intel 82801H USB" rev 0x02: apic 2 int 22 (irq 7) usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 azalia0 at pci0 dev 27 function 0 "Intel 82801H HD Audio" rev 0x02: apic 2 int 21 (irq 9) azalia0: codecs: Sigmatel STAC9205X, Conexant/0x2c06, using Sigmatel STAC9205X audio0 at azalia0 ppb0 at pci0 dev 28 function 0 "Intel 82801H PCIE" rev 0x02: apic 2 int 16 (irq 0) pci1 at ppb0 bus 11 ppb1 at pci0 dev 28 function 3 "Intel 82801H PCIE" rev 0x02: apic 2 int 19 (irq 0) pci2 at ppb1 bus 12 uhci2 at pci0 dev 29 function 0 "Intel 82801H USB" rev 0x02: apic 2 int 20 (irq 10) uhci3 at pci0 dev 29 function 1 "Intel 82801H USB" rev 0x02: apic 2 int 21 (irq 9) uhci4 at pci0 dev 29 function 2 "Intel 82801H USB" rev 0x02: apic 2 int 22 (irq 7) ehci1 at pci0 dev 29 function 7 "Intel 82801H USB" rev 0x02: apic 2 int 20 (irq 10) usb1 at ehci1: USB revision 2.0 uhub1 at usb1 "Intel EHCI root hub" rev 2.00/1.00 addr 1 ppb2 at pci0 dev 30 function 0 "Intel 82801BAM Hub-to-PCI" rev 0xf2 pci3 at ppb2 bus 3 bce0 at pci3 dev 0 function 0 "Broadcom BCM4401B1" rev 0x02: apic 2 int 17 (irq 10), address 00:1c:23:aa:63:5d bmtphy0 at bce0 phy 1: BCM4401 10/100baseTX PHY, rev. 0 "Ricoh 5C832 Firewire" rev 0x05 at pci3 dev 1 function 0 not configured sdhc0 at pci3 dev 1 function 1 "Ricoh 5C822 SD/MMC" rev 0x22: apic 2 int 18 (irq 4) sdmmc0 at sdhc0 "Ricoh 5C843 MMC" rev 0x12 at pci3 dev 1 function 2 not configured "Ricoh 5C592 Memory Stick" rev 0x12 at pci3 dev 1 function 3 not configured "Ricoh 5C852 xD" rev 0x12 at pci3 dev 1 function 4 not configured ichpcib0 at pci0 dev 31 function 0 "Intel 82801HBM LPC" rev 0x02: PM disabled pciide0 at pci0 dev 31 function 1 "Intel 82801HBM IDE" rev 0x02: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility atapiscsi0 at pciide0 channel 0 drive 0 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <TSSTcorp, DVD+-RW TS-L632H, D600> ATAPI 5/cdrom removable cd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 pciide0: channel 1 ignored (disabled) pciide1 at pci0 dev 31 function 2 "Intel 82801HBM SATA" rev 0x02: DMA, channel 0 configured to native-PCI, channel 1 configured to native-PCI pciide1: using apic 2 int 17 (irq 10) for native-PCI interrupt wd0 at pciide1 channel 0 drive 0: <SanDisk SDCFX3-016G> wd0: 4-sector PIO, LBA, 15631MB, 32014080 sectors wd0(pciide1:0:0): using PIO mode 4, Ultra-DMA mode 4 ichiic0 at pci0 dev 31 function 3 "Intel 82801H SMBus" rev 0x02: apic 2 int 17 (irq 10) iic0 at ichiic0 spdmem0 at iic0 addr 0x50: 2GB DDR2 SDRAM non-parity PC2-5300CL5 SO-DIMM spdmem1 at iic0 addr 0x52: 2GB DDR2 SDRAM non-parity PC2-5300CL5 SO-DIMM usb2 at uhci0: USB revision 1.0 uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb3 at uhci1: USB revision 1.0 uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb4 at uhci2: USB revision 1.0 uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb5 at uhci3: USB revision 1.0 uhub5 at usb5 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb6 at uhci4: USB revision 1.0 uhub6 at usb6 "Intel UHCI root hub" rev 1.00/1.00 addr 1 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 pms0 at pckbc0 (aux slot) pckbc0: using irq 12 for aux slot wsmouse0 at pms0 mux 0 pcppi0 at isa0 port 0x61 midi0 at pcppi0: <PC speaker> spkr0 at pcppi0 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 mtrr: Pentium Pro MTRR support umass0 at uhub1 port 1 configuration 1 interface 0 "Western Digital External HDD" rev 2.00/2.40 addr 2 umass0: using SCSI over Bulk-Only scsibus1 at umass0: 2 targets, initiator 0 sd0 at scsibus1 targ 1 lun 0: <ST916082, 1A, 0000> SCSI0 0/direct fixed sd0: 152627MB, 512 bytes/sec, 312581808 sec total rum0 at uhub1 port 3 "Ralink 802.11 bg WLAN" rev 2.00/0.01 addr 3 rum0: MAC/BBP RT2573 (rev 0x2573a), RF RT2528, address 00:0e:3b:0a:ca:28 ugen0 at uhub3 port 2 "Novatel Wireless Inc. Novatel Wireless CDMA" rev 1.10/0.00 addr 2 uhidev0 at uhub4 port 2 configuration 1 interface 0 "Logitech USB Receiver" rev 2.00/5.00 addr 2 uhidev0: iclass 3/1 ums0 at uhidev0: 16 buttons, Z dir wsmouse1 at ums0 mux 0 uhidev1 at uhub4 port 2 configuration 1 interface 1 "Logitech USB Receiver" rev 2.00/5.00 addr 2 uhidev1: iclass 3/0, 17 report ids uhid0 at uhidev1 reportid 3: input=4, output=0, feature=0 uhid1 at uhidev1 reportid 16: input=6, output=6, feature=0 uhid2 at uhidev1 reportid 17: input=19, output=19, feature=0 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root root on wd0a swap on wd0b dump on wd0b