From: "Richard W.M. Jones" <rjones@redhat.com>
To: richard -rw- weinberger <richard.weinberger@gmail.com>
Cc: "user-mode-linux-devel@lists.sourceforge.net"
<user-mode-linux-devel@lists.sourceforge.net>
Subject: Re: [uml-devel] How to reliably kill all vmlinux processes for a single VM?
Date: Mon, 12 Aug 2013 09:53:00 +0100 [thread overview]
Message-ID: <20130812085300.GV5918@redhat.com> (raw)
In-Reply-To: <CAFLxGvz-PVQvKcs8cKZ8bpEfRj6Hw5h4-qNYrSRSq5Ga1axRvw@mail.gmail.com>
On Mon, Aug 12, 2013 at 10:15:24AM +0200, richard -rw- weinberger wrote:
> Found the root cause, patch is on the way.
I can test patches if you CC me on them.
> > Why do you need to kill UML?
> > Can't you shutdown it?
In the qemu/KVM case it's safe to kill the qemu process, as qemu
catches the signal and shuts down safely (in particular: it properly
flushes any writes in flight). I just copied that same code from the
qemu backend to the UML backend. The libguestfs test suite includes a
test to determine if data is flushed properly on shutdown.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-df lists disk usage of guests without needing to install any
software inside the virtual machine. Supports Linux and Windows.
http://people.redhat.com/~rjones/virt-df/
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next prev parent reply other threads:[~2013-08-12 8:53 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-11 17:48 [uml-devel] How to reliably kill all vmlinux processes for a single VM? Richard W.M. Jones
2013-08-12 7:37 ` richard -rw- weinberger
2013-08-12 8:15 ` richard -rw- weinberger
2013-08-12 8:53 ` Richard W.M. Jones [this message]
2013-08-13 10:36 ` Richard W.M. Jones
2013-08-13 10:49 ` Richard Weinberger
2013-08-13 11:06 ` Richard W.M. Jones
2013-08-13 12:04 ` Richard W.M. Jones
2013-08-13 12:25 ` Richard W.M. Jones
2013-08-15 17:34 ` richard -rw- weinberger
2013-08-15 18:01 ` Richard W.M. Jones
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