New subject: Problem starting VMs

23 Aug 2016


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=0D=0ABetreff: Re: [ovirt-users] Problem starting VMs=0D=0A=0D=0A=0D=0AO=
n 23 Aug 2016, at 11:06, Wolfgang Bucher <wolfgang.bucher@netland-mn.de <=
mailto:wolfgang.bucher@netland-mn.de> > wrote:=0D=0A=0D=0AThank's=0D=0A=0D=
=0Abut what do you mean with "initialization is finished=E2=80=9D=0D=0A=0D=
=0Auntil it gets from WaitForLaunch to PoweringUp state, effectively unti=
l the qemu process properly starts up=0D=0A=0D=0A=0D=0Asometimes the vm c=
rashes while copying files!=0D=0A=0D=0Awhen exactly=3F Can you describe e=
xactly what you are doing and what is reported as a reason for crash. Whe=
n exactly does it crash and how=3F=0D=0A=0D=0AThanks,=0D=0Amichal=0D=0A=0D=
=0A=0D=0A=0D=0A=0D=0AWolfgang=0D=0A=0D=0A=0D=0A-----Urspr=C3=BCngliche Na=
chricht-----=0D=0AVon: Milan Zamazal=C2=A0<mzamazal@redhat.com <mailto:mz=
amazal@redhat.com> >=0D=0AGesendet: Die 23 August 2016 16:59=0D=0AAn: Wol=
fgang Bucher <wolfgang.bucher@netland-mn.de <mailto:wolfgang.bucher@netla=
nd-mn.de> >=0D=0ACC: users@ovirt.org <mailto:users@ovirt.org> (users@ovir=
t.org <mailto:users@ovirt.org> ) <users@ovirt.org <mailto:users@ovirt.org=
...
=0D=0ABetreff: Re: AW: Problem starting VMs=0D=0A=0D=0A=0D=0AWolfgang =
Bucher <wolfgang.bucher@netland-mn.de <mailto:wolfgang.bucher@netland-mn.=
de> > writes:=0D=0A=0D=0A> the problem is "waiting for launch" takes up t=
o 20 min.=0D=0A>=0D=0A>=0D=0A> I did a lot of tests with some vm's and th=
...
<br /></span></p>=0A<blockquote style=3D"border-left: 2px solid #325FBA;=
...
Die 23 August 2016 17:11</span><br /><span><strong>An:</strong> Wolfgan=
g Bucher <wolfgang.bucher@netland-mn.de></span><br /><span><strong>=
CC:</strong> Milan Zamazal <mzamazal@redhat.com>; users@ovirt.org (=
users@ovirt.org) <users@ovirt.org></span><br /><span><strong>Betref=
f:</strong> Re: [ovirt-users] Problem starting VMs</span><br /><br /></sp=
an><!-- begin sanitized html -->=0A<div class=3D"bodyclass"><br class=3D"=
" />=0A<div>=0A<blockquote class=3D"">=0A<div class=3D"">On 23 Aug 2016, =
at 11:06, Wolfgang Bucher <<a href=3D"mailto:wolfgang.bucher@netland-m=
n.de" target=3D"_blank" title=3D"Der externe Link wird in einem neuen Fen=
ster geöffnet">wolfgang.bucher@netland-mn.de</a>> wrote:</div>=0A=
<br class=3D"Apple-interchange-newline" />=0A<div class=3D"">=0A<div clas=
s=3D"">=0A<div class=3D"" style=3D"padding: 0px; margin: 0px;"><span clas=
s=3D"" style=3D"font-size: 12pt; font-family: tahoma,arial,helvetica,sans=
-serif;">Thank's<br class=3D"" /></span></div>=0A<div class=3D"" style=3D=
"padding: 0px; margin: 0px;"><span class=3D"" style=3D"font-size: 12pt; f=
ont-family: tahoma,arial,helvetica,sans-serif;"><br class=3D"" /></span><=
/div>=0A<div class=3D"" style=3D"padding: 0px; margin: 0px;"><span class=3D=
"" style=3D"font-size: 12pt; font-family: tahoma,arial,helvetica,sans-ser=
if;">but what do you mean with "</span><span class=3D"" style=3D"font-siz=
e: 12pt;">initialization is finished”</span></div>=0A</div>=0A</div=
=0A</blockquote>=0A<div><br class=3D"" /></div>=0Auntil it gets from Wai=
tForLaunch to PoweringUp state, effectively until the qemu process proper=
ly starts up</div>=0A<div><br class=3D"" />=0A<blockquote class=3D"">=0A<=
...
<span class=3D"" style=3D"font-size: 12pt;">sometimes the vm crashes whi=
le copying files!<br class=3D"" /></span></div>=0A</div>=0A</div>=0A</blo=
ckquote>=0A<div><br class=3D"" /></div>=0Awhen exactly=3F Can you describ=
e exactly what you are doing and what is reported as a reason for crash. =
When exactly does it crash and how=3F</div>=0A<div><br class=3D"" /></div=
=0A<div>Thanks,</div>=0A<div>michal</div>=0A<div><br class=3D"" />=0A<bl=
ockquote class=3D"">=0A<div class=3D"">=0A<div class=3D"">=0A<div class=3D=
"" style=3D"padding: 0px; margin: 0px;"><span class=3D"" style=3D"font-si=
ze: 12pt;"><br class=3D"" /></span></div>=0A<div class=3D"" style=3D"padd=
ing: 0px; margin: 0px;"><span class=3D"" style=3D"font-size: 12pt;"><br c=
lass=3D"" /></span></div>=0A<div class=3D"" style=3D"padding: 0px; margin=
: 0px;"><span class=3D"" style=3D"font-size: 12pt;"><br class=3D"" /></sp=
an></div>=0A<div class=3D"" style=3D"padding: 0px; margin: 0px;"><span cl=
ass=3D"" style=3D"font-size: 12pt;">Wolfgang<br class=3D"" /></span></div=
=0A<div class=3D"" style=3D"padding: 0px; margin: 0px;"><span class=3D""=
This is a multi-part message in MIME format. Your mail reader does not
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Hello=0D=0A=0D=0A=0D=0A=0D=0Ain var log messages i get following :=0D=0A=0D=
=0A=0D=0A=0D=0Akernel: XFS: possible memory allocation deadlock in kmem_a=
lloc (mode:0x250)=0D=0A=0D=0A=0D=0A=0D=0AI have this problem on 4 differe=
nt hosts.=0D=0A=0D=0A=0D=0A=0D=0AThis happens during copying files from n=
etwork to a thin provisioned disk, no problems with preallocated disks.=0D=
=0A=0D=0A=0D=0A=0D=0AThanks=0D=0A=0D=0AWolfgang=0D=0A=0D=0A=0D=0A=0D=0A--=
---Urspr=C3=BCngliche Nachricht-----=0D=0AVon: Michal Skrivanek=C2=A0<mic=
hal.skrivanek@redhat.com>=0D=0AGesendet: Die 23 August 2016 17:11=0D=0AAn=
: Wolfgang Bucher <wolfgang.bucher@netland-mn.de>=0D=0ACC: Milan Zamazal =
<mzamazal@redhat.com>; users@ovirt.org (users@ovirt.org) <users@ovirt.org=
 problem is:=0D=0A>=0D=0A>=0D=0A> 1.=C2=A0 create a win2012 server=0D=0A>=
=0D=0A> 2. attache a new disk (thin provision)=0D=0A>=0D=0A> 3. fill the =
disk from network share with about 100G=0D=0A>=0D=0A> 4. shutdown the vm=0D=
=0A>=0D=0A> 5. reboot host and try starting the vm (takes a lot of time u=
ntil launch)=0D=0A>=0D=0A>=0D=0A>=0D=0A> It's because of a high fragmente=
d filessystem=20=0D=0A=0D=0AI see, thank you for the explanation.  In suc=
h a case, it may take a lot=0D=0Aof time before all the initialization is=
 finished.=0D=0A=0D=0ARegards,=0D=0AMilan=0D=0A=0D=0A____________________=
___________________________=0D=0AUsers mailing list=0D=0AUsers@ovirt.org =
<mailto:Users@ovirt.org>=20=0D=0Ahttp://lists.ovirt.org/mailman/listinfo/=
users=0D=0A=0D=0A
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://ww=
w.w3.org/TR/html4/loose.dtd"><html>=0A<head>=0A  <meta name=3D"Generator"=
 content=3D"Zarafa WebApp v7.2.4-28">=0A  <meta http-equiv=3D"Content-Typ=
e" content=3D"text/html; charset=3Dutf-8">=0A  <title>AW: [ovirt-users] P=
roblem starting VMs</title>=0A</head>=0A<body>=0A<p style=3D"padding: 0; =
margin: 0;"><span style=3D"font-size: 12pt; font-family: tahoma,arial,hel=
vetica,sans-serif;">Hello<br /></span></p>=0A<p style=3D"padding: 0; marg=
in: 0;"><span style=3D"font-size: 12pt; font-family: tahoma,arial,helveti=
ca,sans-serif;"><br /></span></p>=0A<p style=3D"padding: 0; margin: 0;"><=
span style=3D"font-size: 12pt; font-family: tahoma,arial,helvetica,sans-s=
erif;">in var log messages i get following :<br /></span></p>=0A<p style=3D=
"padding: 0; margin: 0;"><span style=3D"font-size: 12pt; font-family: tah=
oma,arial,helvetica,sans-serif;"><br /></span></p>=0A<p style=3D"padding:=
 0; margin: 0;"><span style=3D"font-size: 12pt; font-family: tahoma,arial=
,helvetica,sans-serif;">kernel: XFS: possible memory allocation deadlock =
in kmem_alloc (<a href=3D"mode:0x250">mode:0x250</a>)<br /></span></p>=0A=
<p style=3D"padding: 0; margin: 0;"><span style=3D"font-size: 12pt; font-=
family: tahoma,arial,helvetica,sans-serif;"><br /></span></p>=0A<p style=3D=
"padding: 0; margin: 0;"><span style=3D"font-size: 12pt; font-family: tah=
oma,arial,helvetica,sans-serif;">I have this problem on 4 different hosts=
=2E<br /></span></p>=0A<p style=3D"padding: 0; margin: 0;"><span style=3D=
"font-size: 12pt; font-family: tahoma,arial,helvetica,sans-serif;"><br />=
</span></p>=0A<p style=3D"padding: 0; margin: 0;"><span style=3D"font-siz=
e: 12pt; font-family: tahoma,arial,helvetica,sans-serif;">This happens du=
ring copying files from network to a thin provisioned disk, no problems w=
ith preallocated disks.<br /></span></p>=0A<p style=3D"padding: 0; margin=
: 0;"><span style=3D"font-size: 12pt; font-family: tahoma,arial,helvetica=
,sans-serif;"><br /></span></p>=0A<p style=3D"padding: 0; margin: 0;"><sp=
an style=3D"font-size: 12pt; font-family: tahoma,arial,helvetica,sans-ser=
if;">Thanks<br /></span></p>=0A<p style=3D"padding: 0; margin: 0;"><span =
style=3D"font-size: 12pt; font-family: tahoma,arial,helvetica,sans-serif;=
">Wolfgang<br /></span></p>=0A<p style=3D"padding: 0; margin: 0;"><span s=
tyle=3D"font-size: 12pt; font-family: tahoma,arial,helvetica,sans-serif;"=
 padding-left: 5px; margin: 0px 5px;"><span style=3D"font-family: tahoma,=
arial,helvetica,sans-serif; font-size: 10pt;">-----Ursprüngliche Nac=
hricht-----<br /><span><strong>Von:</strong> Michal Skrivanek <mi=
chal.skrivanek@redhat.com></span><br /><span><strong>Gesendet:</strong=
div class=3D"">=0A<div class=3D"">=0A<div class=3D"" style=3D"padding: 0p=
x; margin: 0px;"><span class=3D"" style=3D"font-size: 12pt;"><br class=3D=
"" /></span></div>=0A<div class=3D"" style=3D"padding: 0px; margin: 0px;"=
 style=3D"font-size: 12pt; font-family: tahoma,arial,helvetica,sans-serif=
;"><br class=3D"" /></span></div>=0A<div class=3D"" style=3D"padding: 0px=
; margin: 0px;"><span class=3D"" style=3D"font-size: 12pt; font-family: t=
ahoma,arial,helvetica,sans-serif;"><br class=3D"" /></span></div>=0A<bloc=
kquote class=3D"" style=3D"border-left: 2px solid #325FBA; padding-left: =
5px; margin: 0px 5px;"><span class=3D"" style=3D"font-family: tahoma,aria=
l,helvetica,sans-serif; font-size: 10pt;">-----Ursprüngliche Nachric=
ht-----<br class=3D"" /><span class=3D""><strong class=3D"">Von:</strong>=
 Milan Zamazal <<a href=3D"mailto:mzamazal@redhat.com" target=3D"=
_blank" title=3D"Der externe Link wird in einem neuen Fenster geöffn=
et">mzamazal@redhat.com</a>></span><br class=3D"" /><span class=3D""><=
strong class=3D"">Gesendet:</strong> Die 23 August 2016 16:59</span><br c=
lass=3D"" /><span class=3D""><strong class=3D"">An:</strong> Wolfgang Buc=
her <<a href=3D"mailto:wolfgang.bucher@netland-mn.de" target=3D"_blank=
" title=3D"Der externe Link wird in einem neuen Fenster geöffnet">wo=
lfgang.bucher@netland-mn.de</a>></span><br class=3D"" /><span class=3D=
""><strong class=3D"">CC:</strong> <a href=3D"mailto:users@ovirt.org" tar=
get=3D"_blank" title=3D"Der externe Link wird in einem neuen Fenster ge&o=
uml;ffnet">users@ovirt.org</a> (<a href=3D"mailto:users@ovirt.org" target=
=3D"_blank" title=3D"Der externe Link wird in einem neuen Fenster geö=
;ffnet">users@ovirt.org</a>) <<a href=3D"mailto:users@ovirt.org" targe=
t=3D"_blank" title=3D"Der externe Link wird in einem neuen Fenster ge&oum=
l;ffnet">users@ovirt.org</a>></span><br class=3D"" /><span class=3D"">=
<strong class=3D"">Betreff:</strong> Re: AW: Problem starting VMs</span><=
br class=3D"" /><br class=3D"" /></span>=0A<div class=3D"">=0A<pre class=3D=
"" style=3D"white-space: pre-wrap; word-wrap: break-word;">Wolfgang Buche=
r <<a href=3D"mailto:wolfgang.bucher@netland-mn.de" target=3D"_blank" =
title=3D"Der externe Link wird in einem neuen Fenster geöffnet">wolf=
gang.bucher@netland-mn.de</a>> writes:<br class=3D"" /><br class=3D"" =
/>> the problem is "waiting for launch" takes up to 20 min.<br class=3D=
"" />><br class=3D"" />><br class=3D"" />> I did a lot of tests =
with some vm's and th problem is:<br class=3D"" />><br class=3D"" />&g=
t;<br class=3D"" />> 1.  create a win2012 server<br class=3D"" />=
><br class=3D"" />> 2. attache a new disk (thin provision)<br class=
=3D"" />><br class=3D"" />> 3. fill the disk from network share wit=
h about 100G<br class=3D"" />><br class=3D"" />> 4. shutdown the vm=
<br class=3D"" />><br class=3D"" />> 5. reboot host and try startin=
g the vm (takes a lot of time until launch)<br class=3D"" />><br class=
=3D"" />><br class=3D"" />><br class=3D"" />> It's because of a =
high fragmented filessystem <br class=3D"" /><br class=3D"" />I see, than=
k you for the explanation.  In such a case, it may take a lot<br class=3D=
"" />of time before all the initialization is finished.<br class=3D"" /><=
br class=3D"" />Regards,<br class=3D"" />Milan<br class=3D"" /></pre>=0A<=
/div>=0A</blockquote>=0A</div>=0A________________________________________=
_______<br class=3D"" />Users mailing list<br class=3D"" /><a href=3D"mai=
lto:Users@ovirt.org" target=3D"_blank" title=3D"Der externe Link wird in =
einem neuen Fenster geöffnet">Users@ovirt.org</a><br class=3D"" />ht=
tp://lists.ovirt.org/mailman/listinfo/users<br class=3D"" /></div>=0A</bl=
ockquote>=0A</div>=0A<br class=3D"" /></div>=0A<!-- end sanitized html --=
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Re: [ovirt-users] Problem starting VMs

Wolfgang Bucher

Yaniv Kaul

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