Red Hat Bugzilla – Bug 609383
kvm takes around 6% of CPU after booting with init=/bin/sh and idle
Last modified: 2013-01-09 06:36:15 EST
+++ This bug was initially created as a clone of Bug #609119 +++
Description of problem:
Fedora 13, booting a machine using the following line:
qemu-kvm -enable-kvm -cpu n270,+x2apic -M fedora-13 -m 512 -hda Stick-test.qcow2 -net nic,macaddr=00:11:11:11:11:72 -net tap,script=run.net -boot c -usb -usbdevice tablet -serial pty -vga cirrus
The guest is a Fedora 13 system.
The CPU is at around 6%, the guest is doing nothing.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
6% of CPU used by doing almost nothing in guest.
Almost zero CPU.
Host kernel: 126.96.36.199-95.fc13.i686.PAE
167.00 3.5% _raw_spin_lock_irqsave
149.00 3.1% fget_light
136.00 2.8% _raw_spin_unlock_irqrestore
135.00 2.8% sysenter_past_esp
130.00 2.7% read_tsc
129.00 2.7% system_call
102.00 2.1% mls_compute_sid
100.00 2.1% do_select
97.00 2.0% avc_has_perm_noaudit
efer_reload 0 0
exits 6418449 68
fpu_reload 879175 0
halt_exits 25519 11
halt_wakeup 493 0
host_state_reload 2779033 35
hypercalls 0 0
insn_emulation 4680132 31
insn_emulation_fail 0 0
invlpg 35168 0
io_exits 1405390 24
irq_exits 46850 1
irq_injections 57751 11
irq_window 7900 0
largepages 0 0
mmio_exits 1288700 0
mmu_cache_miss 18159 0
mmu_flooded 7370 0
mmu_pde_zapped 8334 0
mmu_pte_updated 24142 0
mmu_pte_write 1195467 0
mmu_recycled 0 0
mmu_shadow_zapped 21453 0
mmu_unsync 131 0
nmi_injections 0 0
nmi_window 0 0
pf_fixed 172703 0
pf_guest 28199 0
remote_tlb_flush 11 0
request_irq 0 0
signal_exits 1 0
tlb_flush 80336 0
I added a new bug report because I think this is a different issue.
This message is a reminder that Fedora 13 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 13. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as WONTFIX if it remains open with a Fedora
'version' of '13'.
Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version'
to a later Fedora version prior to Fedora 13's end of life.
Bug Reporter: Thank you for reporting this issue and we are sorry that
we may not be able to fix it before Fedora 13 is end of life. If you
would still like to see this bug fixed and are able to reproduce it
against a later version of Fedora please change the 'version' of this
bug to the applicable version. If you are unable to change the version,
please add a comment here and someone will do it for you.
Although we aim to fix as many bugs as possible during every release's
lifetime, sometimes those efforts are overtaken by events. Often a
more recent Fedora release includes newer upstream software that fixes
bugs or makes them obsolete.
The process we are following is described here:
Fedora 13 changed to end-of-life (EOL) status on 2011-06-25. Fedora 13 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.
If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version.
Thank you for reporting this bug and we are sorry it could not be fixed.