Re: kvm unhandled exit 4400

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On Sat, Nov 06, 2010 at 01:32:20AM +0300, Michael Tokarev wrote:
> [Replying to my own email]
> 04.11.2010 00:16, Michael Tokarev wrote:
> > 03.11.2010 22:44, Khaled El Mously wrote:
> >> The host kernel is on Ubuntu: 2.6.32-25-generic
> >>
> >> The guest kernel is 2.6.34-something.
> >>
> >> I have figured out what the problem is. When I first attempted to run kvm, it said access to /dev/kvm was denied. So I did "chmod o+rw /dev/kvm" and reloaded. It stopped complaining about permissions, but apparently it won't work unless you have the +x as well (i.e. need to do "chmod o+rwx /dev/kvm" ). Perhaps that should be documented somewhere. Or maybe kvm should specifically check for that and complain early.
> > 
> > Um.  Please excuse me but this is a complete bullshit.
> 
> As others pointed out, this is too harsh.  It wasn't
> intentional to be extra harsh here, it was just me
> not realizing how harsh such a statement is, as
> English is not my native language and I dont use it
> much.  Far more appropriate word for this context
> is "nonsense".  I apologize for using inappropriate
> words.
> 
> > qemu opens /dev/kvm in O_RDWR mode.  It does not
> > execute that file, execute bit is not needed.
> 
> /mjt

Don't worry about it - it WAS complete bullshit. I later got the error again even with /dev/kdm at +rwx.
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