Bugs item #1906189, was opened at 2008-03-03 13:33
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Category: None
Group: None
Status: Open
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.
=====================================================
[EMAIL PROTECTED] 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.
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