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From: John Clemens <jclemens-X2/pQFfLUrBl57MIdRCFDg@public.gmane.org>
To: Dan Kenigsberg <danken-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Cc: kvm-devel <kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Subject: Re: qemu option parsing error.
Date: Sat, 10 Nov 2007 21:31:30 -0500	[thread overview]
Message-ID: <1194748290.27555.22.camel@beth> (raw)
In-Reply-To: <20071110223054.GB12367-RO/WWmT55CHJJbofclyLPCHBx9XpghdU@public.gmane.org>


Aww..crap.

Please disregard.. I was running under 'vdeq', and it looks like vdeq is
eating the '-m' argument for itself iff it's the first argument on the
qemu command line. 

As you can see, when running under vdeq (and some extra debugging
printf's added):

$ sudo vdeq ./qemu-system-x86_64 -m 512 test.img
ram_size=134217728
phys_ram_size=146812928

$ sudo vdeq ./qemu-system-x86_64 test.img -m 512
ram_size=536870912
phys_ram_size=549466112

Without vdeq, everything runs fine. Sorry for the noise...
john.c

On Sun, 2007-11-11 at 00:30 +0200, Dan Kenigsberg wrote:
> On Sat, Nov 10, 2007 at 01:22:06PM -0500, John Clemens wrote:
> > It appears the qemu in KVM-51 has a weird glitch where it will ignore
> > the '-m' memory parameter if it's the first parameter on the command
> > line (the case 'QEMU_OPTION_m' stanza never gets called in
> > qemu/hw/vl.c:main()).  A quick look at the code doesn't reveal anything
> > obvious to me as to why.  Putting some other parameter first (like
> > '-hda') works just fine.  This doesn't happen with the current qemu
> > cvs. 
> > 
> > i.e.:
> > 
> > qemu-system-x86_64 -m 512 -hda test.img  == 128MB ram in VM.
> > qemu-system-x86_64 -hda test.img -m 512  == 512MB ram in VM.
> > 
> 
> I failed to reproduce this on my system (but I could not try if with the
> exact same params). What's your host? What happens when you pass an
> absurdly large memory size?
> 
> I get
> $ ./qemu-system-x86_64 -m 4000 -hda /images/fc6.img
> kvm_alloc_userspace_memory: Cannot allocate memoryCould not create KVM context
> 
> Dan.


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      parent reply	other threads:[~2007-11-11  2:31 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-10 18:22 qemu option parsing error John Clemens
2007-11-10 22:30 ` Dan Kenigsberg
     [not found]   ` <20071110223054.GB12367-RO/WWmT55CHJJbofclyLPCHBx9XpghdU@public.gmane.org>
2007-11-11  2:31     ` John Clemens [this message]

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