Re: Freezing Windows 2008 x64bit guest

[Harri Olin <harri.olin@gmail.com>]

Gleb Natapov wrote:
 > On Wed, Jul 21, 2010 at 04:03:28PM +0300, Harri Olin wrote:
 >> Gleb Natapov wrote:
 >>> On Wed, Jul 21, 2010 at 01:09:06PM +0300, Harri Olin wrote:
 >>>> Gleb Natapov wrote:
 >>>> On both times irq_exits go to 10000 but irq_injections stay at
 >>>> around 4600. On both times qemu process was at 100% cpu load.
 >>> irq_exits are exits due to host interrupt. What "cat /proc/interrupts"
 >>> show? Which counter grows at this rate there (or 1/4 of the rate 
but for
 >>> each host cpu).
 >> System froze again just a moment ago and there are 6100 "local timer
 >> interrupts" and around 3600 "Rescheduling interrupts" every second
 >> happening.
 >>
 >> #cat /proc/interrupts; sleep 1; cat /proc/interrupts; sleep 1; ....
 >> http://mizar.remote.agasha.com/k/kvm/interrupts.txt
 >> http://mizar.remote.agasha.com/k/kvm/interrupts1.txt
 >>
 >> quick calculations
 >>                                              total
 >> RES: 110847929 115251972 108671867 114338799 449110567 	per second:
 >> RES: 110848996 115252094 108673031 114340080 449114201 	3634
 >> RES: 110850059 115252174 108674157 114341446 449117836 	3635
 >> RES: 110851132 115252276 108675332 114342801 449121541 	3705
 >> 						
 >>                                                total		
 >> LOC: 1531251837 618157953 1727791012 522296117 4399496919 per second:
 >> LOC: 1531252861 618161024 1727792036 522297141 4399503062 6143
 >> LOC: 1531253884 618164095 1727793060 522298165 4399509204 6142
 >> LOC: 1531254907 618167166 1727794084 522299189 4399515346 6142
 >
 > Same qemu and command line as before? Without -no-hpet?

Yes those interrupt numbers area still running qemu-kvm-0.11.1 without 
-no-hpet.

I now started the quest with -no-hpet, kvm_stat, everything working:

  efer_reload                  0       0
  exits                283535303   41437
  fpu_reload            94754003   16231
  halt_exits            24716918    4696
  halt_wakeup           24416218    4651
  host_state_reload    112571913   18552
  hypercalls                   0       0
  insn_emulation        75833651   11377
  insn_emulation_fail         83       0
  invlpg                 5327501     124
  io_exits              84146648   13718
  irq_exits             10182390    2295
  irq_injections        31379031    5979
  irq_window              941352     113
  largepages                   0       0
  mmio_exits               29794       0
  mmu_cache_miss          380265      11
  mmu_flooded             167547       2
  mmu_pde_zapped          288251       2
  mmu_pte_updated         586646       2
  mmu_pte_write           505897       3
  mmu_recycled             40892       0
  mmu_shadow_zapped       365079       4
  mmu_unsync               19338      -1
  nmi_injections               0       0
  nmi_window                   0       0
  pf_fixed              20331924    1570
  pf_guest               5332473     214
  remote_tlb_flush       3213779     211
  request_irq                  0       0
  signal_exits                 0       0
  tlb_flush              8205865     335


interrupt count calculations, system working, -no-hpet:

                                                total
LOC: 1537337119 621778834 1732851735 525376978 4417344666 per sec
LOC: 1537339334 621779137 1732851925 525377284 4417347680 3014
LOC: 1537339987 621779260 1732853664 525377824 4417350735 3055
LOC: 1537340126 621779388 1732855889 525378420 4417353823 3088

RES: 112093536 116293086 109808558 115510943 453706123
RES: 112093737 116293164 109808699 115511006 453706606 483
RES: 112093921 116293182 109808731 115511040 453706874 268
RES: 112093976 116293225 109808733 115511061 453706995 121

full /proc/interrupts at: 
http://mizar.remote.agasha.com/k/kvm/interrupts-working-no-hpet.txt

command line:
/usr/local/qemu-kvm-0.11.1/bin/qemu-system-x86_64 -drive 
file=/dev/rigelvg/w2k8system,cache=none,boot=on -drive 
file=/dev/rigelvg/w2k8data,cache=none -m 6144 -vnc :1 -net 
nic,macaddr=C0:FF:12:FB:AA:01 -net tap -smp 4 -localtime -no-hpet

Still couple of hours before I can restart the host to new kernel.

-- 
Harri.