From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Tokarev Subject: Re: kvm unhandled exit 4400 Date: Sat, 06 Nov 2010 01:32:20 +0300 Message-ID: <4CD485F4.4020401@msgid.tls.msk.ru> References: <20101102210100.GB13929@wuzzy.fuzzbuzz.org> <4CD12C28.20208@gmail.com> <20101103194410.GA3004@fuzzdora.tablet> <4CD1D116.1080908@msgid.tls.msk.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: haishan , kvm@vger.kernel.org To: Khaled El Mously Return-path: Received: from isrv.corpit.ru ([86.62.121.231]:41901 "EHLO isrv.corpit.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753990Ab0KEWcX (ORCPT ); Fri, 5 Nov 2010 18:32:23 -0400 In-Reply-To: <4CD1D116.1080908@msgid.tls.msk.ru> Sender: kvm-owner@vger.kernel.org List-ID: [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