[DragonFlyBSD - Bug #2089] Fatal trap 9: GPF in kernel mode

Antonio M. Huete Jimenez via Redmine bugtracker-admin at leaf.dragonflybsd.org
Fri Aug 17 05:47:13 PDT 2012

Issue #2089 has been updated by Antonio M. Huete Jimenez.

Assignee deleted (0)


Is your KVM host an Intel Processor? Which one?

I'm unable to boot DFly x64 using KVM on Intel CPUs.

       DMA space used: 144k, remaining available: 16384k

       Fatal trap 9: general protection fault while in kernel mode
       cpuid = 0; lapic->id = 00000000
       instruction pointer     = 0x8:0xffffffff80797aa2
       stack pointer           = 0x10:0xffffffe00e4bbc00
       frame pointer           = 0x10:0xffffffe021c6fbd0
       code segment            = base 0x0, limit 0xfffff, type 0x1b
                               = DPL 0, pres 1, long 0, def32 0, gran 1
       processor eflags        = interrupt enabled, IOPL = 0
       current process         = 1
       current thread          = pri 10 (CRIT)
       kernel: type 9 trap, code=0

       CPU0 stopping CPUs: 0x00000000
       Stopped at      cpu_heavy_restore+0x72: movl    %ecx,%cr3

       db> trace
       cpu_heavy_restore() at cpu_heavy_restore+0x72 0xffffffff80797aa2
       tsleep() at tsleep+0x54e 0xffffffff804f2f2b
       constty_daemon() at constty_daemon+0xb5 0xffffffff80505978

Antonio Huete
Bug #2089: Fatal trap 9: GPF in kernel mode

Author: Tobias Weingartner
Status: New
Priority: Normal
Target version: 

Running on proxmox 1.8 (linux kvm style VM)

tryroot cd0
cd9660: RockRidge Extension

Fatal trap 9: general protection fault while in kernel mode
instruction pointer = 0x8:0xfff...80701772
stack pointer       = 0x10:0xfff...e001716bf0
frame pointer       = 0x10:0xfff...e00c39eaf0
Stopped at  cpu_heavy_restore+0x32: movq  0x320(%rdx),%rdi

Trace shows:
vm_pageout_thread() at vm_pageout_thread+0x221

Registers show:
can't get rdx... scrolls off screen, and cant seem to get backscroll

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