Re: Deadlock on fragmented memory?

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Thu, Oct 19, 2017 at 10:29:47AM +0200, Martin Husemann wrote:
> On Thu, Oct 19, 2017 at 10:18:28AM +0200, Manuel Bouyer wrote:
> > the key factor. From what I've seen it's virtual memory which is fragmented
> > too much, not physical memory. There is plenty of free space in the vmem, but
> > no chunk is big enough (from memory, hung processes are waiting for a 256kb
> > contigous chunk of VM space).
> 
> Yes, of course, virtual continous kernel VA is the issue, sorry, should
> have been more carefull with words. Are that xen guests 32bit?

yes. I've never seen this problem on 64bits guests.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--