<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Wed, Nov 19, 2014 at 11:25 AM, Dietmar Maurer <span dir="ltr"><<a href="mailto:dietmar@proxmox.com" target="_blank">dietmar@proxmox.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">> Swap space is inititialized on startup using 'swapon', and AFAIK there is no<br>
> complex format which gets damaged if data is not synced? At least I never<br>
> observed problems with swap after server crash<br>
><br>
> I can think about two cases at least when this is critical:<br>
> 1) Live migration - if swap is corrupted live migration will fail.<br>
<br>
</span>AFAIK kvm live migration issues a disk flush, so that should not be a problem?<br>
</blockquote></div><br></div><div class="gmail_extra">Out if sync blogs do not appear during migration, they appear under normal work load. And then we get corruption of data in 'memory' on migration.<br><br></div><div class="gmail_extra">Stanislav<br></div></div>