rts.org/sysutils/rtty/>
for this. with a restricted shell, i can offer console access to guests
via ssh. "cu" also works, but lacks rtty's background logging.
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Paul Vixie
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d[619]: time reset +0.166066 s
> Jan 26 12:31:11 guests ntpd[619]: time reset +0.142994 s
> ...
(that's much worse with the default kern.timecounter.hardware value, but
still rather absurd.)
i use bhyve in production and seems altogether ready.
--
Paul Vixie
3 / ufs rw 1 1 mm1:/zroot1/guesthomes
> /zroot1/guesthomes nfs rw,noinet4 0 0
and:
> root@mm1:/home/vixie # cat /etc/zfs/exports # !!! DO NOT EDIT THIS
> FILE MANUALLY !!! /zroot1/guesthomes guests.redbarn.org /zroot1/home
> family.redbarn.org
--
Paul Vixie
Neel Natu wrote:
> Hi Paul,
>
> On Fri, Apr 10, 2015 at 10:35 AM, Paul Vixie wrote:
>> ...
>>
>> can we make TSC-low the default?
>>
>
> The choice of using the TSC is not without issues:
>
> - As rstone@ points out the TSCs need to be synchronized a
(void)fprintf(stderr,
"WARNING: some process(es) wouldn't die\n");
break;
}
(void)sleep(2 * i);
}
--
Paul Vixie
___
freebsd-
cleanly) bhyve's to get more time. the current poweroff/halt/reboot
command only looks for evidence of paging as a reason to extend the time
between SIGTERM and SIGKILL. i'd like to give it some bhyve-relevant
additional reason to delay that SIGKILL.
--
Paul Vixie
___
ould be great. i would code these and submit them if these changes were
welcomed.
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let me ask a related question: i'm using FFS in the guest, zvol on the
host. should i be telling my guest kernel to not bother with an FFS
buffer cache at all, or to use a smaller one, or what?
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On Wednesday, November 04, 2015 09:56:53 PM Andreas Nilsson wrote:
> Well,
>
> in all honesty, getting vm managers to kvm equivalents ( ie virt-manager )
> should not be a goal. virt-manager and friends are terrible. Please
> envision something better!
>
> Where it is hosted and what language it
Rainer Duffner wrote:
Hi,
is it possible to increase the size of these images (after creation,
and while the guest OS is running)?
there is no driver-layer signal to tell the guest OS that a drive just
got larger, so the guest OS would have to poll, or be told to sense.
with freebsd 10 as
Pavel Odintsov wrote:
Hello, Dear Community!
I would like to ask about plans for this storage engine approach. I like
ZFS so much and we are storing about half petabyte of data here.
But when we are speaking about vm's we should use zvols or even raw file
based images and they are discarding
Сергей Мамонов wrote:
Hello!
Yes - zvols looks awesome. But what driver you use for it?
virtio-blk.
And what
about disk usage overhead in guest?
ufs on zvol is faster, either in the parent or a bhyve using virtio-blk,
than zfs. at least for writing, which is my dominant work load. i exp
Russell L. Carter wrote:
...
So I am wondering if UFS in the -current guest might be better
overall. I can certainly do a multiple hour experiment, installing
a new guest with UFS root, but since I am new to this, perhaps there is
conventional wisdom about ZFS vs. UFS in the guest? Maybe UFS in
Russell L. Carter wrote:
... I have two bhyve VMs configured
identically, both running r297047, each configured with 15G of RAM and
3 cpus, verified by examining 'sysctl hw' from within the running
guest. One has the default ZFS install, the other UFS. However,
# cd /usr/src && make buildworld
Russell L. Carter wrote:
On 03/19/16 20:13, Paul Vixie wrote:
root@vm1:~ # ahcich0: Timeout on slot 29 port 0
ahcich0: is 0008 cs ss rs bfff tfd 50 serr
cmd 0001dd17
(ada0:ahcich0:0:0:0): WRITE_FPDMA_QUEUED. ACB: 61 40 70 dc 3a 40 00 00
00 00 00 00
fwiw, bhyve's existing console support is working fine for me. i use
rtty (from ports). my configuration looks like this:
[mm1.redbarn:amd64] ls -l /usr/local/rtty/dev
total 3
lrwxr-xr-x 1 root wheel 11 May 18 2014 family@ -> /dev/nmdm2A
lrwxr-xr-x 1 root wheel 11 May 17 2014 guests@ ->
Jakub Klama wrote:
The purpose of virtio-console is to create arbitrary bidirectional,
host-to-guest communication
channels that bypass guest's network stack (don't require working networking in
the guest).
thanks. i had no idea that the existing console support required a
networking stack
Jakub Klama wrote:
... What I meant is that virtio-console can be used as a
replacement for TCP/IP communication between host and guest (at least in
some applications). For example, it can be used by the "guest additions"
code to talk to the host.
so, kermit? :-)
nmdm could theoretically (
Jakub Klama wrote:
nmdm(4) emulates a serial port. how could one pass ioctls and signals via
serial port?
i think if bhyve arranged for its virtio_console device to be its
control terminal, it would receive SIGWINCH from the host kernel, which
it could propagate to the guest's /dev/console
Jakub Klama wrote:
It doesn't speak any protocol. virtio-console is a pipe. it pushes
bytes back and forth. Name is indeed unfortunate, it should have
been called virtio-pipe, but virtio-console is how the virtio
specification calls it.
if it's never going to appear as /dev/console or any ot
Jakub Klama wrote:
if it's never going to appear as /dev/console or any other
tty-like device to the guest, then i won't care what it looks like
on the host. however, you said it could carry resize events, which
leads me to believe that the name (vertio-console) is not wrong,
and it is a tty to
The Doctor wrote:
How do I "bridge" these "Taps"?
here's rc.conf from my second bhyve milking machine:
hostname="mm2.redbarn.org"
defaultrouter="149.20.59.1"
ipv6_defaultrouter="2001:4f8:3:1006::1"
ifconfig_igb0="inet 149.20.56.188/29"
ifconfig_igb0_ipv6="inet6 2001:4f8:3:1007::4/64"
autob
Allan Jude wrote:
You might also find the sysctl:
net.link.tap.up_on_open=1
useful, as it will re-up the tap devices when bhyve opens them. Else
rebooting a bhyve might end up with the tap interface in a down state.
can do. but, that's never happened. can you tell me what "might" means?
--
i would love to see a vclock driver so that the guest could reach up and
grab the host's clock. running ntp on every guest feels silly.
however, there's a problem with this, which i expect is the reason why
it hasn't happened yet.
ntp tries hard not to jump the clock, since when you do, there
Victor Sudakov wrote:
> Colleagues,
>
> When I must run several FreeBSD guests in bhyve, should I prefer i386
> or amd64 guests provided a guest will never need more than 2-3 GB of
> RAM?
if you're running bind9, the sizeof(void *) will dominate your heap
size, and a 32-bit guest will be bette
Victor Sudakov wrote:
> Paul Vixie wrote:
>> for everything else, the larger register set on amd64 will matter more,
>> and you should probably use a 64-bit guest.
>
> There is an opinion that 64-bit systems use up more resources than
> 32-bit ones for the same tasks,
C. L. Martinez wrote:
> Hi all,
>
> How can I use more than one serial console for several bhyve guests?
`pkg install rtty`
> According to nmdm(4) man page only two nullmodem devices can be
> created: nmdm0A and nmdm0B (and only nmdm0A can be assigned to one
> bhyve guest). Then, how can I acc
C. L. Martinez wrote:
>
>> `pkg install rtty`
>>
> Thanks Paul. But, do I need to start some daemon?
the rtty documentation explains how to start it up.
> And what options do
> I need in bhyve command line?? Something like: "bhyve -A -H -P -W -c
> 1 -u -l com1,/dev/rtty0..."??
you'll connec
OS/2 can install on MDA, CGA, or VGA. not VNC and not serial.
if the bios offers serial console and can convert MDA, that works.
vixie
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the surprising fact that came up in recent threads is that some of you
run zfs in your guests. that's quite a bit of unnec'y redundancy and
other overheads. i am using UFS in my guests.
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Dustin Wenz wrote:
I'm not using ZFS in my VMs for data integrity (the host already
provides that); it's mainly for the easy creation and management of
filesystems, and the ability to do snapshots for rollback and
replication.
snapshot and replication works fine on the host, acting on the zvo
Patrick M. Hausen wrote:
I'm not an FS developer but from experience as an admin that
feature - nullfs mounts into a hypervisor - while greatly desired,
looks quite nontrivial to implement.
i think what's called for is a vdd of some kind, similar to the virtual
ethernet and virtual disk driv
Adam Vande More wrote:
...
Like this?
https://www.freebsd.org/doc/handbook/geom-ggate.html
yes, that'd be fine. if i used NFS i'd have to run lockd.
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i've used zfs for this, but i have to shut the guest down to do it. i'm
using zvols for my guest system disks, so it's
shut the guest down (maybe just to single-user mode)
make a zfs checkpoint
start the guest back up
zfs send the checkpoint
this also assumes that the sync-destination is a cold
Tommi Pernila wrote:
Hi,
been happy with sysutils/iohyve
https://github.com/pr1ntf/iohyve/blob/master/README.md
is there a way to integrate it with sysutils/rtty, so that there is a
console log, and so multiple people can attach to the same console?
right now i do my bhyving with a small
Rodney W. Grimes wrote:
I believe that sysutils/vm-bhyve supports tmux as a console option,
that might get you close to what you want.
i'll check it out. i should have popularized rtty more than i have. i
don't believe that tmux has logging.
--
P Vixie
Harry Schmalzbauer wrote:
Bezüglich Ruben's Nachricht vom 26.02.2018 11:34 (localtime):
On 26/02/2018 10:56, Harry Schmalzbauer wrote:
…
Another, personally very significant, reason is that you'll get a
superfluous host interface for each if_bridge(4), which makes the output
of plain ifconfi
i use nfs for this but i don't like it.
we have vtnet and vtbd. where is vtfs?
as in, a vm-independent (virtualbox, vmware, bhyve, kvm, xen, etc)
standard that would let sysadmins export file systems through something
that might look to the guest a lot like vfs, but would be implemented in
th
On Saturday, August 25, 2018 8:55:05 AM UTC Paul Webster via freebsd-
virtualization wrote:
> ... I personally have:
>
> Windows Server 2012
> CentOS 6
> Debian
> FreeBSD
> OpenBSD
> and a few other more strange linuxs I believe (got a zpool full of the
> zvols (not named very well ;))) ...
i hav
On Sunday, August 26, 2018 2:46:42 AM UTC Allan Jude wrote:
> On 2018-08-25 13:45, Paul Vixie wrote:
> > ... i remain
> > mystified by the behaviour of grub-bhyve, which usually fails (no
> > meaningful error message) and seems like won't run from /etc/rc.local
> >
On Sunday, August 26, 2018 5:54:47 AM UTC Paul Vixie wrote:
> On Sunday, August 26, 2018 2:46:42 AM UTC Allan Jude wrote:
> > On 2018-08-25 13:45, Paul Vixie wrote:
> > > ... i remain
> > > mystified by the behaviour of grub-bhyve, which usually fails (no
> > >
On Sunday, August 26, 2018 5:57:22 AM UTC Paul Vixie wrote:
> On Sunday, August 26, 2018 5:54:47 AM UTC Paul Vixie wrote:
> > On Sunday, August 26, 2018 2:46:42 AM UTC Allan Jude wrote:
> > > What does the invocation look like?
>
> trying again:
>
> ...
On Sunday, August 26, 2018 4:25:13 PM UTC Paul Webster wrote:
> howto start stuff auto:
> https://www.youtube.com/watch?v=MidLqBs4_B8&feature=youtu.be
very entertaining. some notes:
note that rc.local is executed by the "." command from the /bin/sh instance
that runs /etc/rc.d/local, and so, #!
On Sunday, August 26, 2018 7:56:04 PM UTC Paul Webster via freebsd-
virtualization wrote:
> indeed I did polish it a bit and upload: https://youtu.be/w0WuoKVWAgI ;)
"Your browser does not currently recognize any of the video formats available.
Click here to visit our FAQ about HTML5 video."
--
On Sunday, August 26, 2018 8:20:14 PM UTC Shawn Webb wrote:
> ...
>
> I've found that the big distros (CentOS, Debian, Ubuntu) work very
> well with bhyve's UEFI support. It has been years since I used either
> bhyveload or grub-bhyve.
i am trying alan jude's recommendation for UEFI bios now.
>
tech-lists wrote on 2019-01-26 16:17:
Is it possible to migrate a byve freebsd instance/image to Azure? Or
does one have to have the instance initially provisioned via their
marketplace?
bhyve does not participate in the virtualbox/vmware/etc ecosystem where
"appliances" in the form of "op
Victor Sudakov wrote on 2019-02-11 17:46:
...
I've preferred disk0_dev="zvol" VMs for aesthetical reasons since
vm-bhyve started supporting them. Those file-based VMs get in the way
while backing up $vm_dir, and their disks are not visible in
"zfs list -t volume"
+1.
--
P Vixie
___
Dustin Marquess wrote on 2019-04-21 12:12:
Using a sparse zvol and either the ahci-hd or nvme drivers should support TRIM.
is someone working on virtio-blk support?
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Victor Sudakov wrote on 2019-04-22 19:43:
...
And the implementation is pretty brutal:
# 'vm stopall'
# stop all bhyve instances
# note this will also stop instances not started by vm-bhyve
#
core::stopall(){
local _pids=$(pgrep -f 'bhyve:')
echo "Shutting down all bhyve virtual mac
Victor Sudakov wrote on 2019-04-22 21:13:
...
sleep 1
...
i think this is worse than brutal, it's wrong. consider freebsd's own
work flow when trying to comply with the first soft shutdown it got:
https://github.com/freebsd/freebsd/blob/master/sbin/reboot/reboot.c#L220
this has bitte
i use rtty for this. it's in ports.
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On 3 Jul 2019, 12:46, at 12:46, Eric van Gyzen wrote:
>I would like to expose bhyve serial consoles over TCP sockets, like
>many
>terminal servers do for hardware serial ports. Is there any
>open-source
>software to do this?
>
>I f
On Wednesday, 3 July 2019 19:45:45 UTC Eric van Gyzen wrote:
> I would like to expose bhyve serial consoles over TCP sockets, like many
> terminal servers do for hardware serial ports. Is there any open-source
> software to do this?
as i said, "pkg install rtty" was created for this purpose and i
On Monday, 30 December 2019 18:06:11 UTC Willem Jan Withagen wrote:
> Something like:
>bhyve -s 1,virtio-blk,rbd:poolname/imagename[@snapshotname] \
> [:option1=value1[:option2=value2...]]
this is approximately how i'd hope to do object-store level ZFS integration,
s
Willem Jan Withagen wrote on 2020-01-07 01:53:>
Looking for reviewers of:
https://reviews.freebsd.org/D23010
this general approach seems legit to me. i don't know how to tell that
to the "reviews" web site shown above, but i hope someone else here
knows that answer and will take a look at
On Tuesday, 5 May 2020 23:55:01 UTC Brandon helsley wrote:
> Well how do i add a tap to the bridge the VM is on as well as my physical
> nic
my rc.conf has evolved as follows:
autobridge_interfaces="bridge0"
autobridge_bridge0="tap* igb1"
ifconfig_igb1="up media 1000baseTX fib 1"
cloned_interface
D'Arcy Cain wrote on 2020-10-22 07:03:
> On 10/21/20 11:16 PM, Jason Tubnor wrote:
>> public: flags=8843 metric
>> 0 mtu 1500
>> ...
>> groups: bridge
>> nd6 options=9
>> tap0: flags=8843 metric 0
>> mtu 1500
>> ...
>> groups: tap vm-port
>>
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