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Date: Mon, 13 Apr 2015 12:52:02 +0200
From: =?UTF-8?B?Um9nZXIgUGF1IE1vbm7DqQ==?= <roger.pau@citrix.com>
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To: Hannes Mehnert <hannes@mehnert.org>, <freebsd-xen@freebsd.org>
Subject: Re: [fixed] Re: GELI encrypted root and FreeBSD dom0 ; libxl cannot
 allocate memory
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Hello,

El 13/04/15 a les 12.48, Hannes Mehnert ha escrit:
> On 04/13/2015 11:42, Roger Pau Monné wrote:
>>> 36280 xl       CALL
>>> mmap(0,0x19000,0x3<PROT_READ|PROT_WRITE>,0x1002<MAP_PRIVATE|MAP_ANON>,0xffffffff,0)
>>>
>>>
> 36280 xl       RET   mmap 34366500864/0x800673000
>>> 36280 xl       CALL  mlock(0x800673000,0x19000) 36280 xl
>>> RET   mlock -1 errno 12 Cannot allocate memory
> 
>> mlock is indeed failing to wire the pages, can you try to set:
> 
>> # sysctl -w vm.max_wired=1048576
> 
>> And try again?
> 
> Results in the very same trace (or do I need to set it in sysctl.conf
> and reboot?)..

No, just setting the sysctl should be fine, no need to set it in
sysctl.conf and reboot. Maybe the problem is not with vm.max_wired but
the limit you have on your shell, can you paste the output of:

# ulimit -a

I'm interested in the "locked memory" line.

Roger.