On Tue, 2009-10-13 at 08:50 +0200, Avi Kivity wrote: > On 10/12/2009 08:42 PM, Andrew Theurer wrote: > > On Sun, 2009-10-11 at 07:19 +0200, Avi Kivity wrote: > > > >> On 10/09/2009 10:04 PM, Andrew Theurer wrote: > >> > >>> This is on latest master branch on kvm.git and qemu-kvm.git, running > >>> 12 Windows Server2008 VMs, and using oprofile. I ran again without > >>> oprofile and did not get the BUG. I am wondering if anyone else is > >>> seeing this. > >>> > >>> Thanks, > >>> > >>> -Andrew > >>> > >>> > >>>> Oct 9 11:55:13 virtvictory-eth0 kernel: BUG: unable to handle kernel > >>>> paging request at ffffffff9fe9a2b4 > >>>> Oct 9 11:55:13 virtvictory-eth0 kernel: IP: [<ffffffffa02e1af1>] > >>>> vmx_vcpu_run+0x26d/0x64f [kvm_intel] > >>>> > >> Can you run this through objdump or gdb to see what source this > >> corresponds to? > >> > >> > > Somewhere here I think (?) > > > > objdump -d > > > > > Look at the address where vmx_vcpu_run starts, add 0x26d, and show the > surrounding code. > > Thinking about it, it probably _is_ what you showed, due to module page > alignment. But please verify this; I can't reconcile the fault address > (ffffffff9fe9a2b) with %rsp at the time of the fault. Here is the start of the function: > 0000000000003884 <vmx_vcpu_run>: > 3884: 55 push %rbp > 3885: 48 89 e5 mov %rsp,%rbp and 0x26d later is 0x3af1: > 3ad2: 4c 8b b1 88 01 00 00 mov 0x188(%rcx),%r14 > 3ad9: 4c 8b b9 90 01 00 00 mov 0x190(%rcx),%r15 > 3ae0: 48 8b 89 20 01 00 00 mov 0x120(%rcx),%rcx > 3ae7: 75 05 jne 3aee <vmx_vcpu_run+0x26a> > 3ae9: 0f 01 c2 vmlaunch > 3aec: eb 03 jmp 3af1 <vmx_vcpu_run+0x26d> > 3aee: 0f 01 c3 vmresume > 3af1: 48 87 0c 24 xchg %rcx,(%rsp) > 3af5: 48 89 81 18 01 00 00 mov %rax,0x118(%rcx) > 3afc: 48 89 99 30 01 00 00 mov %rbx,0x130(%rcx) > 3b03: ff 34 24 pushq (%rsp) > 3b06: 8f 81 20 01 00 00 popq 0x120(%rcx) -Andrew -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
