Hi I'm trying to run an OpenBSD virtual machine in Xen 4.4. The install procedure worked fine, but when I boot the VM I get a kernel crash. Linux VMs on this host work perfectly fine, and as I said the installer runs ok too, so I'm not sure what's causing this.
Following is the dmesg output : OpenBSD 5.6 (GENERIC.MP) #333: Fri Aug 8 00:20:21 MDT 2014 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 109047808 (103MB) avail mem = 97517568 (93 MB) mpath0 at root scsibus0 at mpath0: 256 targets mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xfc001000 (12 entries) bios0: vendor Xen version "4.4.1" date 12/11/2014 bios0: Xen HVM domU acpi at bios0 not configured mpbios0 at bios0: Intel MP Specification 1.4 cpu0 at mainbus0: apid 0 (boot processor) cpu0: Intel(R) Celeron(R) CPU G1610 @ 2.60GHz, 2594.52 MHz cpu0: FPU,VMC,DE,PSE,TSC,MSR,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CFLUSH,MMX, FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,SSSE3,CX16,PCID,SSE4.1,SSE3.2,x2APIC,POPCNT,DEADL INE,XSAVE,FSGSBASE,SMEP,ERMS cpu0: 256KB 64b/line 8-way L2 cache cpu0: smt 0, core 0, package 0 mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges cpu0: apic clock running at 100MHz cpu1 at mainbus0: apid 2 (application processor) cpu1: Intel(R) Celeron(R) CPU G1610 @ 2.60GHz, 2594.36 MHz cpu1: FPU,VMC,DE,PSE,TSC,MSR,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,CFLUSH,MMX, FXSR,SSE,SSE2,HTT,SSE3,PCLMUL,SSSE3,CX16,PCID,SSE4.1,SSE3.2,x2APIC,POPCNT,DEADL INE,XSAVE,FSGSBASE,SMEP,ERMS cpu1: 256KB 64b/line 8-way L2 cache cpu1: smt 0, core 1, package 0 mpbios0: bus 0 is type ISA ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 11, 48 pins ioapic0: misconfigured as apic0, remapped to apid 1 pci0 at mainbus bus 0 pchb0 at pci0 dev 0 function 0 "Intel 82441FX" rev 0x02 pcib0 at pci0 dev 1 function 0 "Intel 82371SB ISA" rev 0x00 pciide0 at pci0 dev 1 function 1 "Intel 82371SB IDE" rev 0x00: DMA, channel 0 w ired to compatibility, channel 1 wired to compatibility wd0 at pciide0 channel 0 drive 0: <QEMU HARDDISK> wd0: 16-sector PIO, LBA48, 51200MB, 104857600 sectors wdi1 at pciide0 channel 0 drive 1: <QEMU HARDDISK> wd1: 16-sector PIO, LBA48, 128MB, 262144 sectors wd0(pciide0:0:0): using PIO mode 4, DMA mode 2 wd1(pciide0:0:1): using PIO mode 4, DMA mode 2 atapiscsi0 at pciide0 channel 1 drive 0 scsibus1 at atapiscsi0: 2 targets cd0 at scsibus1 targ 0 lun 0: <QEMU, QEMU DVD-ROM, 2.1.> ATAPI 5/cdrom removabl e cd0(pciide0:1:0): using PIO mode 4, DMA mode 2 "XenSource Platform Device" rev 0x01 at pci0 dev 2 function 0 not configured vga1 at pci0 dev 3 function 0 "Cirrus Logic CL-GD5446" rev 0x00 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) re0 at pci0 dev 4 function 0 "Realtek 8139" rev 0x20: RTL8139C+ (0x7480), apic 1 int 5, address 00:16:3e:b4:5a:29 rlphy0 at re0 phy 0: RTL internal PHY isa0 at pcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo com0: 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 fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 fd0 at fdc0 drive 1: density unknown nvram: invalid checksum vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets root on wd0a (dbd5aff2bf9a7bb0.a), swap on wd0b dump on wd0b clock: unknown CMOS layout kernel: double fault trap, code=0 Stopped at 0: kernel: page fault trap, code=0 Stopped at db_read_bytes+0x22: movzbl 0(%rdi,%rcx,1),%eax Following is the trace: ddb{1}> trace db_read_bytes() at db_read_bytes+0x22 db_get_value() at db_get_value+0x34 db_disasm() at db_disasm+0x42 db_trap() at db_trap+0x90 kdb_trap() at kdb_trap+0xf0 trap() at trap+0x15d --- trap (number 13) --- mpidle() at 0 cpu_spinup_trampoline_end() at cpu_spinup_trampoline_end+0x67 end trace frame: 0x0, count = -8 I don't know if I should provide anything else, if you need something please tell me. Thank you for any help