[ kvm-Bugs-1906189 ] All SMP guests often halt

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Bugs item #1906189, was opened at 2008-03-03 11:33
Message generated for change (Comment added) made by sf-robot
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Category: None
Group: None
>Status: Closed
Resolution: None
Priority: 5
Private: No
Submitted By: Technologov (technologov)
Assigned to: Nobody/Anonymous (nobody)
Summary: All SMP guests often halt

Initial Comment:
All SMP configurations are very unstable - both on Intel and AMD. KVM-62.

Symptons: guests often soft-lock ups, or more precisely, they slow down to unacceptable speeds.
Guests may hard-lockup totally, or even BSOD in some cases.

I have tried:
 Windows 2000
 Windows XP
 Windows Server 2003
 Windows Server 2008

The KVM acts, but it looks like a loop.

=====================================================
[alexeye@pink-intel win2000-Pro]$ dmesg | tail -n40
Ignoring de-assert INIT to vcpu 0
Ignoring de-assert INIT to vcpu 1
Ignoring de-assert INIT to vcpu 0
Ignoring de-assert INIT to vcpu 1
SIPI to vcpu 1 vector 0x10
apic write: bad size=1 fee00030
Ignoring de-assert INIT to vcpu 0
Ignoring de-assert INIT to vcpu 1
Ignoring de-assert INIT to vcpu 0
Ignoring de-assert INIT to vcpu 1
SIPI to vcpu 1 vector 0x10
apic write: bad size=1 fee00030
Ignoring de-assert INIT to vcpu 0
Ignoring de-assert INIT to vcpu 1
Ignoring de-assert INIT to vcpu 0
Ignoring de-assert INIT to vcpu 1
Ignoring de-assert INIT to vcpu 1
SIPI to vcpu 1 vector 0x21
SIPI to vcpu 1 vector 0x21
SIPI to vcpu 1 vector 0x21
Ignoring de-assert INIT to vcpu 0
Ignoring de-assert INIT to vcpu 1
SIPI to vcpu 1 vector 0x21
Ignoring de-assert INIT to vcpu 0
Ignoring de-assert INIT to vcpu 1
SIPI to vcpu 1 vector 0x10
apic write: bad size=1 fee00030
Ignoring de-assert INIT to vcpu 0
Ignoring de-assert INIT to vcpu 1
Ignoring de-assert INIT to vcpu 0
Ignoring de-assert INIT to vcpu 1
Ignoring de-assert INIT to vcpu 1
SIPI to vcpu 1 vector 0x21
SIPI to vcpu 1 vector 0x21
SIPI to vcpu 1 vector 0x21
Ignoring de-assert INIT to vcpu 0
Ignoring de-assert INIT to vcpu 1
SIPI to vcpu 1 vector 0x21
Ignoring de-assert INIT to vcpu 0
Ignoring de-assert INIT to vcpu 1

=====================================================
(gdb) bt
#0  0x0000003a016c9aa7 in ioctl () from /lib64/libc.so.6
#1  0x000000000051bb29 in kvm_run (kvm=0x2a9b040, vcpu=0) at libkvm.c:850
#2  0x00000000004fda86 in kvm_cpu_exec (env=<value optimized out>)
    at /root/Linstall/kvm-62rc2/qemu/qemu-kvm.c:127
#3  0x00000000004fe5d5 in kvm_main_loop_cpu (env=0x2b56490)
    at /root/Linstall/kvm-62rc2/qemu/qemu-kvm.c:307
#4  0x00000000004110fd in main (argc=44675488, argv=<value optimized out>)
    at /root/Linstall/kvm-62rc2/qemu/vl.c:7862
=====================================================

kvm statistics

 efer_reload             103701       0
 exits                512480997   20642
 fpu_reload            24781662     799
 halt_exits             1824249     170
 halt_wakeup             828699      68
 host_state_reload     49593245    1617
 hypercalls                   0       0
 insn_emulation       389188282   14239
 insn_emulation_fail       1110       0
 invlpg                       0       0
 io_exits              28855411     928
 irq_exits             19131361    3248
 irq_window                   0       0
 largepages                   0       0
 mmio_exits            16078802       0
 mmu_cache_miss         4219404     415
 mmu_flooded            4110773     410
 mmu_pde_zapped          499335       6
 mmu_pte_updated       10381639    1327
 mmu_pte_write         14567944    1737
 mmu_recycled             17419       0
 mmu_shadow_zapped      4372079     410                                  

=====================================================

-Alexey, 03.03.2008.

----------------------------------------------------------------------

>Comment By: SourceForge Robot (sf-robot)
Date: 2009-08-25 02:20

Message:
This Tracker item was closed automatically by the system. It was
previously set to a Pending status, and the original submitter
did not respond within 14 days (the time period specified by
the administrator of this Tracker).

----------------------------------------------------------------------

Comment By: Avi Kivity (avik)
Date: 2009-08-10 12:29

Message:
Does this still happen?

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=893831&aid=1906189&group_id=180599