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Date: Sun, 06 Dec 2009 20:16:02 +0200
From: Avi Kivity <avi@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH] Permit zero-sized qemu_malloc() & friends
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To: malc <av1474@comtv.ru>
Cc: Blue Swirl <blauwirbel@gmail.com>, qemu-devel@nongnu.org, Ian Molton <ian.molton@collabora.co.uk>, Paul Brook <paul@codesourcery.com>, Markus Armbruster <armbru@redhat.com>

On 12/06/2009 08:09 PM, malc wrote:
>
> Well, i don't have a swap...
>
> ~$ cat /proc/meminfo
> MemTotal:       515708 kB
> MemFree:          3932 kB
> Buffers:         10120 kB
> Cached:         365320 kB
> SwapCached:          0 kB
> Active:         238120 kB
> Inactive:       222396 kB
> SwapTotal:           0 kB
> SwapFree:            0 kB
> ...
> CommitLimit:    464136 kB
> Committed_AS:   178920 kB
> ...
>    

Out of curiosity, what desktop and apps are you running?  Here firefox 
takes 1.3GB virt size and 377MB RSS, that alone could overwhelm your system.

[avi@firebolt qemu-kvm (master)]$ cat /proc/2698/status
Name:    firefox
State:    S (sleeping)
Tgid:    2698
Pid:    2698
PPid:    2686
TracerPid:    0
Uid:    500    500    500    500
Gid:    500    500    500    500
Utrace:    0
FDSize:    256
Groups:    500 502 512
VmPeak:     1478804 kB
VmSize:     1288100 kB
VmLck:           0 kB
VmHWM:      434788 kB
VmRSS:      386296 kB
VmData:      676384 kB
VmStk:         248 kB
VmExe:          88 kB
VmLib:       62504 kB
VmPTE:        2312 kB


-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.