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...to .config and .config_complete rather than passing in an empty pipe (but those are the only two callbacks where it makes sense, and even then, only when we did not use script=- or when -s is in effect). [1] ./nbdkit eval config='ls -l /proc/$$/fd >/dev/tty' a=b total 0 lr-x------. 1 eblake eblake 64 Apr 15 13:03 0 -> 'pipe:[1669308]' l-wx------. 1 eblake eblake 64 Apr 15 13:03 1 -> 'pipe:[1669309]' l-wx------. 1 eblake eblake 64 Apr 15 13:03 2 -> 'pipe:[1669310]' lr-x------. 1 eblake eblake 64 Apr 15 13:03 255 -> /tmp/nbdkitevalVUNZ1F/config &gt...

12:39 < eblake> rwmjones: 'nbdkit -s sh -' won't work, neither will 'nbdkit -s curl password=-' 12:40 < eblake> should we have an easier way for plugins to detect whether they can safely consume stdin and/or write to stdout during .config? 12:40 < eblake> and in turn, have nbdk...

...d work if the tarfile itself includes a file named 'exportname' in the top directory of the tarfile. A quick test confirms my worry: $ cd /tmp $ touch exportname $ tar cf f.tar exportname $ tar tf f.tar exportname $ LANG=C tar --no-auto-compress -tRvf f.tar exportname block 0: -rw-rw-r-- eblake/eblake 0 2020-07-06 13:37 exportname block 1: ** Block of NULs ** $ LANG=C tar --no-auto-compress -tRvf f.tar ./exportname block 1: ** Block of NULs ** tar: ./exportname: Not found in archive tar: Exiting with failure status due to previous errors so if we like the idea, we'd have to allo...

...rather than passing in > an empty pipe (but those are the only two callbacks where it makes > sense, and even then, only when we did not use script=- or when -s > is in effect). > > [1] ./nbdkit eval config='ls -l /proc/$$/fd >/dev/tty' a=b > total 0 > lr-x------. 1 eblake eblake 64 Apr 15 13:03 0 -> 'pipe:[1669308]' > l-wx------. 1 eblake eblake 64 Apr 15 13:03 1 -> 'pipe:[1669309]' > l-wx------. 1 eblake eblake 64 Apr 15 13:03 2 -> 'pipe:[1669310]' > lr-x------. 1 eblake eblake 64 Apr 15 13:03 255 -> > /tmp/nbdkiteva...

Right on the top of http://www.centos.org/docs/5/html/5.2/Virtualization/chap-Virtualization-Managing_guests_with_virsh.html, it seems to imply you can load/send scripts to the vm guest using virsh. Is that possible? How and what are the limitations? Can you query the vm guest?

...fer to the nodename of the disk source image as the source argument for the blockdev-mirror operation while still keeping the old job name. With blockdev we must also persist the job in qemu. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> commit 3e35156bd18badf9757cad0904493e7eda530320 Author: Peter Krempa <pkrempa@redhat.com> Date: Fri Dec 6 18:44:22 2019 +0100 qemu: migration: Mention disk target rather than the drive name in debug msg Signed-off-by: Peter Krempa <pkrempa@redhat.com>...

...> an empty pipe (but those are the only two callbacks where it makes >> sense, and even then, only when we did not use script=- or when -s >> is in effect). >> >> [1] ./nbdkit eval config='ls -l /proc/$$/fd >/dev/tty' a=b >> total 0 >> lr-x------. 1 eblake eblake 64 Apr 15 13:03 0 -> 'pipe:[1669308]' >> l-wx------. 1 eblake eblake 64 Apr 15 13:03 1 -> 'pipe:[1669309]' >> l-wx------. 1 eblake eblake 64 Apr 15 13:03 2 -> 'pipe:[1669310]' >> lr-x------. 1 eblake eblake 64 Apr 15 13:03 255 -> >&gt...

...st/003887.html I've seen this hook here : http://www.wogri.at/en/linux/ceph-libvirt-locking/ But it's a hook... Yes, I may try to write a patch. My coding skills are surely not as good as yours but I 'd be glad to make a try :) -----Message d'origine----- De : Eric Blake [mailto:eblake@redhat.com] Envoyé : jeudi 7 novembre 2013 16:40 À : NEVEU Stephane; libvirt-users@redhat.com Objet : Re: [libvirt-users] RBD images locking On 11/07/2013 07:56 AM, NEVEU Stephane wrote: > Hi, > > One short question : Is there any chance to see locks on rbd/images in the next release ?...

Thank you Eric. Yes, it looks like AppArmor caused the problem. I will google on how to disable it. On 8/5/14 8:27 PM, "Eric Blake" <eblake@redhat.com> wrote: >On 08/05/2014 05:23 PM, Jianfeng Tang wrote: > >> >> However, if I moved my image file (not base image) to default location >> /var/lib/libvirt/images. It works. >> >> It seems something related to selinux. However, my box seems not hav...

Thanks very much Eric! This is exactly what I guessed, I just wondering where I could find this piece of code and control the the pause time of guest, while the snapshot being taken? thanks ! Best, Yuanzhen On Tue, Aug 5, 2014 at 6:30 PM, Eric Blake <eblake@redhat.com> wrote: > On 08/05/2014 03:54 PM, Yuanzhen Gu wrote: > > Hello folks, > > > > If I give command to take external disk-only live snapshot, such as > > # virsh snapshot-create-as vm1 snapshot_vm1 --disk-only > > > > will the guest OS be paused or...

...able emulator for x86_64 However I have installed Qemu from source. For example $ /usr/local/bin/qemu-x86_64 -version qemu-x86_64 version 1.6.90, Copyright (c) 2003-2008 Fabrice Bellard So what is the problem here?   Regards, Mahmood On Wednesday, November 20, 2013 8:14 PM, Eric Blake <eblake@redhat.com> wrote: On 11/20/2013 09:26 AM, Mahmood Naderan wrote: > Hi, > I have successfully installed libvirt-.0.10.0 from source > > ./configure > make > make install > > How can I check that if libvirt-python is installed? Search the folders, it seems there is no...

...s blindly usable as the data to serve? We've used the same technique on thousands of OVA files without hitting any problem so far, so I guess that ... > $ truncate --size=1M large > $ echo 'hi' >> large > $ tar cSf f.tar large > $ ls -l large f.tar > -rw-rw-r--. 1 eblake eblake 10240 Jul 6 13:57 f.tar > -rw-rw-r--. 1 eblake eblake 1048579 Jul 6 13:48 large > $ LANG=C tar --no-auto-compress -tRvf f.tar large > block 0: -rw-rw-r-- eblake/eblake 1048579 2020-07-06 13:48 large > block 2: ** Block of NULs ** > > Yep, we need to special-case spars...

...ctory `/home/peeyush/Downloads/libvirt-1.1.1/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/peeyush/Downloads/libvirt-1.1.1' make: *** [all] Error 2 Any idea why am I getting this? Thanks. ~Peeyush Gupta ________________________________ From: Eric Blake <eblake@redhat.com> To: Peeyush Gupta <gpeeyush@ymail.com> Cc: "libvirt-users@redhat.com" <libvirt-users@redhat.com> Sent: Wednesday, 31 July 2013 6:19 PM Subject: Re: [libvirt-users] Installing libvirt On 07/30/2013 11:30 PM, Peeyush Gupta wrote: > Hi, [can you convince...

...make clean', but not if you rely on incremental builds. Git likes to update files by creating new inodes, which strands hard links. We could either use symlinks, or as done here, add a dependency to force the hard links to be rebuilt as needed. Fixes: 45b4877fde Signed-off-by: Eric Blake <eblake@redhat.com> --- plugins/eval/Makefile.am | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/plugins/eval/Makefile.am b/plugins/eval/Makefile.am index abbe17a0..19de6c0d 100644 --- a/plugins/eval/Makefile.am +++ b/plugins/eval/Makefile.am @@ -1,5 +1,5 @@ # nbdkit -# Copyri...

Thanks, i will try out the links RJ > Date: Thu, 6 Feb 2014 13:46:17 -0700 > From: eblake@redhat.com > To: rajeshdavid@hotmail.com; libvirt-users@redhat.com > Subject: Re: [libvirt-users] Automate Windows 7 installation via Answer file > > On 02/06/2014 10:57 AM, RAJESH David John wrote: > > Hello, > > Is there a means to automate windows 7 installation after R...

On Mon, Aug 13, 2018 at 11:58 PM Nir Soffer <nsoffer@redhat.com> wrote: > On Mon, Aug 13, 2018 at 8:44 PM Eric Blake <eblake@redhat.com> wrote: > >> > #ifdef FALLOC_FL_ZERO_RANGE >> > - r = do_fallocate (h->fd, FALLOC_FL_ZERO_RANGE, offset, count); >> > - if (r == -1 && errno != EOPNOTSUPP) { >> > - nbdkit_error ("zero: %m"); >> > + if (h-&g...

On Wed, Aug 6, 2014 at 12:27 PM, Eric Blake <eblake@redhat.com> wrote: > On 08/06/2014 10:06 AM, Yuanzhen Gu wrote: > > yes, I got your point, thanks very much Eric. > > not entirely, because you still top-posted. > > got it entirely this time, not top-posted. > > > > If I want to take a distributed snapsh...

Hi everybody, I'm using libvirt java api bindings for my thesis. I would like to know if there is a way to obtain live information about cpu and mem usage of a domain. Regards, Enrico De Maio Skype: enrico.de.maio Mobile: +39 338 205 3397

On 8/3/19 11:01 AM, Eric Blake wrote: > There are a couple of problems with filters trying to sleep. First, > when it is time to shut down nbdkit, we wait until all pending > transactions have had a chance to wind down. But consider what > happens if one or more of those pending transactions are blocked in a > sleep. POSIX says nanosleep is interrupted with EINTR if that thread