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<title>AW: [ovirt-users] Problem starting VMs</title>
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<p style="padding: 0; margin: 0;"><span style="font-size: 12pt; font-family: tahoma,arial,helvetica,sans-serif;">Hello<br /></span></p>
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<p style="padding: 0; margin: 0;"><span style="font-size: 12pt; font-family: tahoma,arial,helvetica,sans-serif;">in var log messages i get following :<br /></span></p>
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<p style="padding: 0; margin: 0;"><span style="font-size: 12pt; font-family: tahoma,arial,helvetica,sans-serif;">kernel: XFS: possible memory allocation deadlock in kmem_alloc (<a href="mode:0x250">mode:0x250</a>)<br /></span></p>
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<p style="padding: 0; margin: 0;"><span style="font-size: 12pt; font-family: tahoma,arial,helvetica,sans-serif;">I have this problem on 4 different hosts.<br /></span></p>
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<p style="padding: 0; margin: 0;"><span style="font-size: 12pt; font-family: tahoma,arial,helvetica,sans-serif;">This happens during copying files from network to a thin provisioned disk, no problems with preallocated disks.<br /></span></p>
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<p style="padding: 0; margin: 0;"><span style="font-size: 12pt; font-family: tahoma,arial,helvetica,sans-serif;">Thanks<br /></span></p>
<p style="padding: 0; margin: 0;"><span style="font-size: 12pt; font-family: tahoma,arial,helvetica,sans-serif;">Wolfgang<br /></span></p>
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<blockquote style="border-left: 2px solid #325FBA; padding-left: 5px; margin: 0px 5px;"><span style="font-family: tahoma,arial,helvetica,sans-serif; font-size: 10pt;">-----Ursprüngliche Nachricht-----<br /><span><strong>Von:</strong> Michal Skrivanek <michal.skrivanek@redhat.com></span><br /><span><strong>Gesendet:</strong> Die 23 August 2016 17:11</span><br /><span><strong>An:</strong> Wolfgang 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>Betreff:</strong> Re: [ovirt-users] Problem starting VMs</span><br /><br /></span><!-- begin sanitized html -->
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<div class="">On 23 Aug 2016, at 11:06, Wolfgang Bucher <<a href="mailto:wolfgang.bucher@netland-mn.de" target="_blank" title="Der externe Link wird in einem neuen Fenster geöffnet">wolfgang.bucher@netland-mn.de</a>> wrote:</div>
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<div class="" style="padding: 0px; margin: 0px;"><span class="" style="font-size: 12pt; font-family: tahoma,arial,helvetica,sans-serif;">Thank's<br class="" /></span></div>
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<div class="" style="padding: 0px; margin: 0px;"><span class="" style="font-size: 12pt; font-family: tahoma,arial,helvetica,sans-serif;">but what do you mean with "</span><span class="" style="font-size: 12pt;">initialization is finished”</span></div>
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until it gets from WaitForLaunch to PoweringUp state, effectively until the qemu process properly starts up</div>
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<div class="" style="padding: 0px; margin: 0px;"><span class="" style="font-size: 12pt;">sometimes the vm crashes while copying files!<br class="" /></span></div>
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when exactly? Can you describe exactly what you are doing and what is reported as a reason for crash. When exactly does it crash and how?</div>
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<div>Thanks,</div>
<div>michal</div>
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<div class="" style="padding: 0px; margin: 0px;"><span class="" style="font-size: 12pt;">Wolfgang<br class="" /></span></div>
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<blockquote class="" style="border-left: 2px solid #325FBA; padding-left: 5px; margin: 0px 5px;"><span class="" style="font-family: tahoma,arial,helvetica,sans-serif; font-size: 10pt;">-----Ursprüngliche Nachricht-----<br class="" /><span class=""><strong class="">Von:</strong> Milan Zamazal <<a href="mailto:mzamazal@redhat.com" target="_blank" title="Der externe Link wird in einem neuen Fenster geöffnet">mzamazal@redhat.com</a>></span><br class="" /><span class=""><strong class="">Gesendet:</strong> Die 23 August 2016 16:59</span><br class="" /><span class=""><strong class="">An:</strong> Wolfgang Bucher <<a href="mailto:wolfgang.bucher@netland-mn.de" target="_blank" title="Der externe Link wird in einem neuen Fenster geöffnet">wolfgang.bucher@netland-mn.de</a>></span><br class="" /><span class=""><strong class="">CC:</strong> <a href="mailto:users@ovirt.org" target="_blank" title="Der externe Link wird in einem neuen Fenster geöffnet">users@ovirt.org</a> (<a href="mailto:users@ovirt.org" target="_blank" title="Der externe Link wird in einem neuen Fenster geöffnet">users@ovirt.org</a>) <<a href="mailto:users@ovirt.org" target="_blank" title="Der externe Link wird in einem neuen Fenster geöffnet">users@ovirt.org</a>></span><br class="" /><span class=""><strong class="">Betreff:</strong> Re: AW: Problem starting VMs</span><br class="" /><br class="" /></span>
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<pre class="" style="white-space: pre-wrap; word-wrap: break-word;">Wolfgang Bucher <<a href="mailto:wolfgang.bucher@netland-mn.de" target="_blank" title="Der externe Link wird in einem neuen Fenster geöffnet">wolfgang.bucher@netland-mn.de</a>> writes:<br class="" /><br class="" />> the problem is "waiting for launch" takes up to 20 min.<br class="" />><br class="" />><br class="" />> I did a lot of tests with some vm's and th problem is:<br class="" />><br class="" />><br class="" />> 1. create a win2012 server<br class="" />><br class="" />> 2. attache a new disk (thin provision)<br class="" />><br class="" />> 3. fill the disk from network share with about 100G<br class="" />><br class="" />> 4. shutdown the vm<br class="" />><br class="" />> 5. reboot host and try starting the vm (takes a lot of time until launch)<br class="" />><br class="" />><br class="" />><br class="" />> It's because of a high fragmented filessystem <br class="" /><br class="" />I see, thank you for the explanation. In such a case, it may take a lot<br class="" />of time before all the initialization is finished.<br class="" /><br class="" />Regards,<br class="" />Milan<br class="" /></pre>
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