Hi, upgrading GENERIC kernel from snapshot 24-Mar-2011 to -current results in system freezes after some minutes (up to some hours) without any error message, here:
OpenBSD 4.9-current (GENERIC) #1: Fri Apr 8 02:20:49 CEST 2011 root@[...]:/usr/src/sys/arch/i386/compile/GENERIC cpu0: Intel(R) Xeon(TM) 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,CFLU SH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,SSE3,MWAIT,DS-CPL,CNXT-ID,CX16,xT PR real mem = 1073258496 (1023MB) avail mem = 1045561344 (997MB) mainbus0 at root bios0 at mainbus0: AT/286+ BIOS, date 12/31/99, BIOS32 rev. 0 @ 0xf0000, SMBIOS rev. 2.3 @ 0xec000 (77 entries) bios0: vendor HP version "P51" date 04/26/2006 bios0: HP ProLiant DL380 G4 acpi0 at bios0: rev 2 acpi0: sleep states S0 S4 S5 acpi0: tables DSDT FACP SPCR MCFG APIC acpi0: wakeup devices acpitimer0 at acpi0: 3579545 Hz, 24 bits acpimcfg0 at acpi0 addr 0xe0000000, bus 0-255 acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: apic clock running at 200MHz cpu at mainbus0: not configured ioapic0 at mainbus0: apid 8 pa 0xfec00000, version 20, 24 pins ioapic1 at mainbus0: apid 9 pa 0xfec80000, version 20, 24 pins ioapic2 at mainbus0: apid 10 pa 0xfec80400, version 20, 24 pins ioapic3 at mainbus0: apid 11 pa 0xfec84000, version 20, 24 pins ioapic4 at mainbus0: apid 12 pa 0xfec84400, version 20, 24 pins acpiprt0 at acpi0: bus 1 (IP2P) acpiprt1 at acpi0: bus 3 (PCXA) acpiprt2 at acpi0: bus 4 (PCXB) acpiprt3 at acpi0: bus 2 (PTA0) acpiprt4 at acpi0: bus 6 (PCXC) acpiprt5 at acpi0: bus 10 (PCXD) acpiprt6 at acpi0: bus 5 (PTC0) acpiprt7 at acpi0: bus 0 (PCI0) acpicpu0 at acpi0 acpitz0 at acpi0: critical temperature 31 degC bios0: ROM list: 0xc0000/0x8000 0xc8000/0x4000! 0xcc000/0x1600 0xee000/0x2000! pci0 at mainbus0 bus 0: configuration mode 1 (bios) bridge io address conflict 0x1000/0x3000 pchb0 at pci0 dev 0 function 0 "Intel E7520 Host" rev 0x0c ppb0 at pci0 dev 2 function 0 "Intel E7520 PCIE" rev 0x0c pci1 at ppb0 bus 2 ppb1 at pci1 dev 0 function 0 "Intel PCIE-PCIE" rev 0x09 pci2 at ppb1 bus 3 bge0 at pci2 dev 1 function 0 "Broadcom BCM5704C" rev 0x10, BCM5704 B0 (0x2100): apic 9 int 1 (irq 5), address 00:18:fe:72:82:73 brgphy0 at bge0 phy 1: BCM5704 10/100/1000baseT PHY, rev. 0 bge1 at pci2 dev 1 function 1 "Broadcom BCM5704C" rev 0x10, BCM5704 B0 (0x2100): apic 9 int 2 (irq 5), address 00:18:fe:72:82:72 brgphy1 at bge1 phy 1: BCM5704 10/100/1000baseT PHY, rev. 0 ppb2 at pci1 dev 0 function 2 "Intel PCIE-PCIE" rev 0x09 pci3 at ppb2 bus 4 ciss0 at pci3 dev 3 function 0 "Compaq Smart Array 64xx" rev 0x01: apic 10 int 3 (irq 5) ciss0: 1 LD, HW rev 1, FW 2.76/2.76, 64bit fifo scsibus0 at ciss0: 1 targets sd0 at scsibus0 targ 0 lun 0: <HP, LOGICAL VOLUME, 2.76> SCSI3 0/direct fixed sd0: 69459MB, 512 bytes/sec, 142253280 sec total ppb3 at pci0 dev 6 function 0 "Intel E7520 PCIE" rev 0x0c: apic 8 int 16 (irq 255) pci4 at ppb3 bus 5 ppb4 at pci4 dev 0 function 0 "Intel PCIE-PCIE" rev 0x09 pci5 at ppb4 bus 6 em0 at pci5 dev 1 function 0 "Intel PRO/1000MT (82546GB)" rev 0x03: apic 11 int 2 (irq 5), address 00:04:23:d6:cc:40 em1 at pci5 dev 1 function 1 "Intel PRO/1000MT (82546GB)" rev 0x03: apic 11 int 1 (irq 5), address 00:04:23:d6:cc:41 ppb5 at pci4 dev 0 function 2 "Intel PCIE-PCIE" rev 0x09 pci6 at ppb5 bus 10 em2 at pci6 dev 1 function 0 "Intel PRO/1000MT (82546GB)" rev 0x03: apic 12 int 1 (irq 5), address 00:04:23:ce:cb:74 em3 at pci6 dev 1 function 1 "Intel PRO/1000MT (82546GB)" rev 0x03: apic 12 int 2 (irq 5), address 00:04:23:ce:cb:75 uhci0 at pci0 dev 29 function 0 "Intel 82801EB/ER USB" rev 0x02: apic 8 int 16 (irq 5) uhci1 at pci0 dev 29 function 1 "Intel 82801EB/ER USB" rev 0x02: apic 8 int 19 (irq 5) uhci2 at pci0 dev 29 function 2 "Intel 82801EB/ER USB" rev 0x02: apic 8 int 18 (irq 5) uhci3 at pci0 dev 29 function 3 "Intel 82801EB/ER USB" rev 0x02: apic 8 int 16 (irq 5) ehci0 at pci0 dev 29 function 7 "Intel 82801EB/ER USB2" rev 0x02: apic 8 int 23 (irq 5) usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 ppb6 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0xc2 pci7 at ppb6 bus 1 vga1 at pci7 dev 3 function 0 "ATI Rage XL" rev 0x27 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) "Compaq iLO" rev 0x01 at pci7 dev 4 function 0 not configured "Compaq iLO" rev 0x01 at pci7 dev 4 function 2 not configured ichpcib0 at pci0 dev 31 function 0 "Intel 82801EB/ER LPC" rev 0x02 pciide0 at pci0 dev 31 function 1 "Intel 82801EB/ER IDE" rev 0x02: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility atapiscsi0 at pciide0 channel 0 drive 0 scsibus1 at atapiscsi0: 2 targets cd0 at scsibus1 targ 0 lun 0: <TSSTcorp, CD-ROM TS-L162C, N204> ATAPI 5/cdrom removable cd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 pciide0: channel 1 disabled (no drives) usb1 at uhci0: USB revision 1.0 uhub1 at usb1 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb2 at uhci1: USB revision 1.0 uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb3 at uhci2: USB revision 1.0 uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb4 at uhci3: USB revision 1.0 uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1 isa0 at ichpcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo com1: probed fifo depth: 0 bytes 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 spkr0 at pcppi0 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 mtrr: Pentium Pro MTRR support umass0 at uhub0 port 7 configuration 1 interface 0 "JetFlash Mass Storage Device" rev 2.00/11.00 addr 2 umass0: using SCSI over Bulk-Only scsibus2 at umass0: 2 targets, initiator 0 sd1 at scsibus2 targ 1 lun 0: <JetFlash, Transcend 8GB, 1100> SCSI0 0/direct removable sd1: 7740MB, 512 bytes/sec, 15851520 sec total vscsi0 at root scsibus3 at vscsi0: 256 targets softraid0 at root root on sd0a swap on sd0b dump on sd0b root@[...]:~ # Hardware is a HP ProLiant DL380 G4. -Florian