similar to: QEMU dies on any attempt to load a Linux kernel module when using a 9P rootfs

On Wed, Aug 27, 2014 at 10:34 AM, Christopher Covington <cov at codeaurora.org> wrote: > On 08/27/2014 12:19 PM, Andy Lutomirski wrote: >> On Wed, Aug 27, 2014 at 9:13 AM, Christopher Covington >> <cov at codeaurora.org> wrote: > > Virtme looks interesting. If it's any use, here is my modest QEMU command line > collection. > >

On Wed, Aug 27, 2014 at 10:34 AM, Christopher Covington <cov at codeaurora.org> wrote: > On 08/27/2014 12:19 PM, Andy Lutomirski wrote: >> On Wed, Aug 27, 2014 at 9:13 AM, Christopher Covington >> <cov at codeaurora.org> wrote: > > Virtme looks interesting. If it's any use, here is my modest QEMU command line > collection. > >

On Tue, Feb 24, 2015 at 11:56:50PM +0100, Olivier Mauras wrote: > > > On Tue, 2015-02-24 at 16:05 -0500, Laine Stump wrote: > > On 02/24/2015 03:37 PM, Olivier Mauras wrote: > > >> Hello, > > >> > > >> I've been trying to boot a VM with the rootfs being a 9P share from > > >> the host. The VM OS is centos 7. > > >>

On Wed, Aug 27, 2014 at 9:13 AM, Christopher Covington <cov at codeaurora.org> wrote: > On 08/27/2014 11:50 AM, Andy Lutomirski wrote: >> On Wed, Aug 27, 2014 at 8:45 AM, Michael S. Tsirkin <mst at redhat.com> wrote: >>> On Wed, Aug 27, 2014 at 08:11:15AM -0700, Andy Lutomirski wrote: >>>> On Aug 26, 2014 11:46 PM, "Stefan Hajnoczi" <stefanha

On Wed, Aug 27, 2014 at 9:13 AM, Christopher Covington <cov at codeaurora.org> wrote: > On 08/27/2014 11:50 AM, Andy Lutomirski wrote: >> On Wed, Aug 27, 2014 at 8:45 AM, Michael S. Tsirkin <mst at redhat.com> wrote: >>> On Wed, Aug 27, 2014 at 08:11:15AM -0700, Andy Lutomirski wrote: >>>> On Aug 26, 2014 11:46 PM, "Stefan Hajnoczi" <stefanha

On 02/24/2015 03:37 PM, Olivier Mauras wrote: >> Hello, >> >> I've been trying to boot a VM with the rootfs being a 9P share from >> the host. The VM OS is centos 7. >> The OS boots but no services can work and it appears that the >> authentication system is broken. >> >> Now the funny thing is that booting the same OS on the same 9P share

Hello, I've been trying to boot a VM with the rootfs being a 9P share from the host. The VM OS is centos 7. The OS boots but no services can work and it appears that the authentication system is broken. Now the funny thing is that booting the same OS on the same 9P share manually with Qemu works as expected with a fully functionnal OS... So I'm wondering what could libvirt do that render

I figured out the problem. There is zerocopy IO is being done via DMA to a buffer allocated with valloc(). Right now, I am running a hack-fix locally so I can get some other stuff done first. I will propose a proper fix to the list in a few days. On 11/25/2013 10:49 AM, Richard Yao wrote: > I booted a Gentoo Linux installation in QEMU with a 9P rootfs as follows: > > sudo qemu-kvm -cpu

- run bindtests.opt only if available - use ocamlc -custom - Don't try to install native code if it hasn't been built (Thanks to Olaf Hering) --- mllib/Makefile.am | 2 +- ocaml/Makefile.am | 7 ++++++- ocaml/examples/Makefile.am | 11 ++++------- ocaml/run-bindtests | 2 ++ 4 files changed, 13 insertions(+), 9 deletions(-) diff --git a/mllib/Makefile.am

Hi Dominique, On 08/22/2014 08:49 AM, Dominique Martinet wrote: > Hi, > > Christopher Covington wrote on Fri, Aug 22, 2014 at 08:37:52AM -0400: >> Thanks for the pointer to this patch. I think I started this kernel half way >> through the 3.16 merge window. The last non-cherry-picked patch I have is: >> >> commit 6d87c225f5d82d29243dc124f1ffcbb0e14ec358 >>

Hi Richard, On 11/25/2013 10:49 AM, Richard Yao wrote: > I booted a Gentoo Linux installation in QEMU with a 9P rootfs as follows: > > sudo qemu-kvm -cpu host -m 1024 -kernel > /mnt/test/usr/src/linux-3.13-rc1/arch/x86/boot/bzImage -append > 'root=/dev/root rootfstype=9p rootflags=trans=virtio,version=9p2000.L ro > console=ttyS0' -serial stdio -fsdev >

On 2015-02-26 17:05, Kashyap Chamarthy wrote: > On Tue, Feb 24, 2015 at 11:56:50PM +0100, Olivier Mauras wrote: > >> On Tue, 2015-02-24 at 16:05 -0500, Laine Stump wrote: >> >>> On 02/24/2015 03:37 PM, Olivier Mauras wrote: >>> >>>>> Hello, I've been trying to boot a VM with the rootfs being a 9P share from the host. The VM OS is centos

On 08/27/2014 12:19 PM, Andy Lutomirski wrote: > On Wed, Aug 27, 2014 at 9:13 AM, Christopher Covington > <cov at codeaurora.org> wrote: >> On 08/27/2014 11:50 AM, Andy Lutomirski wrote: >>> On Wed, Aug 27, 2014 at 8:45 AM, Michael S. Tsirkin <mst at redhat.com> wrote: >>>> On Wed, Aug 27, 2014 at 08:11:15AM -0700, Andy Lutomirski wrote:

On Tue, 2015-02-24 at 16:05 -0500, Laine Stump wrote: > On 02/24/2015 03:37 PM, Olivier Mauras wrote: > >> Hello, > >> > >> I've been trying to boot a VM with the rootfs being a 9P share from > >> the host. The VM OS is centos 7. > >> The OS boots but no services can work and it appears that the > >> authentication system is broken. >

Hello, I've been trying to boot a VM with the rootfs being a 9P share from the host. The VM OS is centos 7. The OS boots but no services can work and it appears that the authentication system is broken. Now the funny thing is that booting the same OS on the same 9P share manually with Qemu works as expected with a fully functionnal OS... So I'm wondering what could libvirt do that render

Linux 4.6, also tried 4.7, qemu 2.6, using this C program: #include <fcntl.h> #include <stdlib.h> #include <syscall.h> #include <unistd.h> int main(int argc, char *argv[]) { char buf[16]; int fd; if (argc != 2) return 1; for (int i = 0; i < atoi(argv[1]); i++) { sleep(1); if ((fd = open("/dev/random", O_RDONLY)) ==

Linux 4.6, also tried 4.7, qemu 2.6, using this C program: #include <fcntl.h> #include <stdlib.h> #include <syscall.h> #include <unistd.h> int main(int argc, char *argv[]) { char buf[16]; int fd; if (argc != 2) return 1; for (int i = 0; i < atoi(argv[1]); i++) { sleep(1); if ((fd = open("/dev/random", O_RDONLY)) ==

> > Hello, > > I've been trying to boot a VM with the rootfs being a 9P share from > the host. The VM OS is centos 7. > The OS boots but no services can work and it appears that the > authentication system is broken. > > Now the funny thing is that booting the same OS on the same 9P share > manually with Qemu works as expected with a fully functionnal OS... So

Please be aware that I HAVE NOT TESTED THIS PROGRAM... please try it in a "safe" environment since for all I know it could nuke your "real root" by mistake. -hpa

[Please keep me Cc:ed since I'm not subscribed to the list!] Hi list, The tl;dr; is: with Libvirt/QEMU, should it be possible to mount a filesystem share (of type='mount') after restoring from a snapshot that was taken when the filesystem share wasn't mounted? It's pretty clear that Libvirt/QEMU (currently, at least) doesn't support taking snapshots of a live guest which