unhandled vm exit: 0x31

[Oliver Siegmar]

Binary package hint: kvm

One of my virtual machines crashed after weeks of normal operation. I got this in my /var/log/libvirt/qemu/[virtmachine].log file:

unhandled vm exit: 0x31 vcpu_id 1
rax ffff88001deebfd8 rbx 0000000000000000 rcx 00000000ffffffff rdx 0000000000000000
rsi 0000000000000001 rdi ffffffff80a9d008 rsp ffff88001deebf18 rbp ffff88001deebf18
r8 0000000000000000 r9 00000001045e5dc0 r10 0000000000000000 r11 00000000ffffffff
r12 0000000000000000 r13 0000000000000000 r14 0000000000000000 r15 0000000000000000
rip ffffffff8022e856 rflags 00000246
cs 0010 (00000000/ffffffff p 1 dpl 0 db 0 s 1 type b l 1 g 1 avl 0)
ds 0018 (00000000/ffffffff p 1 dpl 0 db 1 s 1 type 3 l 0 g 1 avl 0)
es 0018 (00000000/ffffffff p 1 dpl 0 db 1 s 1 type 3 l 0 g 1 avl 0)
ss 0018 (00000000/ffffffff p 1 dpl 0 db 1 s 1 type 3 l 0 g 1 avl 0)
fs 0000 (00000000/ffffffff p 0 dpl 0 db 0 s 0 type 0 l 0 g 0 avl 0)
gs 0000 (ffff88001f41aa00/ffffffff p 0 dpl 0 db 0 s 0 type 0 l 0 g 0 avl 0)
tr 0040 (ffff880001024480/00002087 p 1 dpl 0 db 0 s 0 type b l 0 g 0 avl 0)
ldt 0000 (00000000/ffffffff p 0 dpl 0 db 0 s 0 type 0 l 0 g 0 avl 0)
gdt ffff88000101d000/7f
idt ffffffff80a99000/fff
cr0 8005003b cr2 7f54fdbae000 cr3 1b52b000 cr4 6a0 cr8 0 efer 501

Versions:

Ubuntu 9.04

Linux version 2.6.28-15-server (buildd@yellow) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #48-Ubuntu SMP Wed Jul 29 09:38:22 UTC 2009

kvm:
  Installed: 1:84+dfsg-0ubuntu12.3
  Candidate: 1:84+dfsg-0ubuntu12.3
  Version table:
 *** 1:84+dfsg-0ubuntu12.3 0
        500 http://de.archive.ubuntu.com jaunty-updates/main Packages
        100 /var/lib/dpkg/status
     1:84+dfsg-0ubuntu11 0
        500 http://de.archive.ubuntu.com jaunty/main Packages

libvirt-bin:
  Installed: 0.6.1-0ubuntu5.1
  Candidate: 0.6.1-0ubuntu5.1
  Version table:
 *** 0.6.1-0ubuntu5.1 0
        500 http://de.archive.ubuntu.com jaunty-updates/main Packages
        100 /var/lib/dpkg/status
     0.6.1-0ubuntu5 0
        500 http://de.archive.ubuntu.com jaunty/main Packages

[Dustin Kirkland  (kirkland)]

Moving to the kernel package.

:-Dustin

[Dustin Kirkland  (kirkland)]

This should be fixed in a recent Linux kernel.

Fix should be in the kvm code.

Can one of the kernel guys check and make sure that Karmic's kernel has a git commit from Avi Kivity related to EPT?

If not, we need to pull that ASAP.

:-Dustin

[Oliver Siegmar (osiegmar)]

This happened one more time - now with 2.6.28-17.58-server

[Brad Figg (brad-figg)]

This bug was filed against a series that is no longer supported and so is being marked as Won't Fix. If this issue still exists in a supported series, please file a new bug.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.