From: Michael Tokarev <mjt@tls.msk.ru>
To: Khaled El Mously <khaled@fuzzbuzz.org>
Cc: haishan <haishan.bai@gmail.com>, kvm@vger.kernel.org
Subject: Re: kvm unhandled exit 4400
Date: Thu, 04 Nov 2010 00:16:06 +0300 [thread overview]
Message-ID: <4CD1D116.1080908@msgid.tls.msk.ru> (raw)
In-Reply-To: <20101103194410.GA3004@fuzzdora.tablet>
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.
qemu opens /dev/kvm in O_RDWR mode. It does not
execute that file, execute bit is not needed.
/mjt
next prev parent reply other threads:[~2010-11-03 21:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-02 21:01 kvm unhandled exit 4400 Khaled El Mously
2010-11-03 9:14 ` haishan
2010-11-03 9:32 ` haishan
2010-11-03 19:44 ` Khaled El Mously
2010-11-03 21:16 ` Michael Tokarev [this message]
2010-11-05 22:32 ` Michael Tokarev
2010-11-06 4:38 ` Khaled El Mously
2010-11-06 17:35 ` Avi Kivity
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