Re: kvm unhandled exit 4400

Michael Tokarev
2010-11-05T22:32:23Z

[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