Displaying 20 results from an estimated 583 matches for "dom0_mem".
2012 Jun 21
7
GRUB boot parameters: dom0_mem
...16 (Mageia 1, i686) and have noticed that Dom0 is consuming 85% of the memory allocated to the VM (1GB) so I''d like to reduce this as much as possible in order to make more room for one or two VM''s.
Is there a minimum amount of vRAM that can/should be allocated to Dom0 (using the dom0_mem boot parameter) considering that I only want to host one or two VM''s?
Eric Pretorious
Truckee, CA
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2012 Nov 27
3
[PATCH] xl: xl.conf(5): correct advice re autoballooning vs. dom0_mem
# HG changeset patch
# User Ian Campbell <ijc@hellion.org.uk>
# Date 1354011148 0
# Node ID 3174dc24e3efb0c5b964c244dbfb0218a03a38cf
# Parent 541b0e1a36c86db5df04988dd4ade5430776a7f2
xl: xl.conf(5): correct advice re autoballooning vs. dom0_mem.
The advice was backwards, you should really disable autoballoon if you
use dom0_mem. Also add a reference to the command-line docs.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
diff -r 541b0e1a36c8 -r 3174dc24e3ef docs/man/xl.conf.pod.5
--- a/docs/man/xl.conf.pod.5 Tue Nov 27 10:...
2013 Sep 06
0
Bug#721946: Bug#721946: xen-hypervisor-4.1-amd64: dom0_mem cannot exceed some value
On Thu, 2013-09-05 at 20:52 +0200, Alessandro Vesely wrote:
> Package: xen-hypervisor-4.1-amd64
> Version: 4.1.4-3+deb7u1
> Severity: normal
>
> I tried GRUB_CMDLINE_XEN="dom0_mem=8192M": that delivers 6964868K total, then
> crashes when used=2837436K free=4127432K.
> By crash I mean the gnome screen was blown away, replaced by a black screen
> with white log lines. That seems to happen every time dom0 uses a large amount
> of memory.
On a modern dom0 ker...
2009 Sep 08
15
Re: Re: Xorg on JF 2.6.31-rc8 with xen 3.5 unstable
I was able to get login prompt ( commit 7c62209cde5b13b81685e79b2f9e3757e293aef1 ) first time via serial console:-
title Xen 3.4.1 Fedora 12 Serial (2.6.31-rc8 ) (/dev/sdb1)
root (hd1,0)
kernel /xen-3.4.1.gz dom0_mem=1024M loglvl=all guest_loglvl=all com1=19200,8n1 console=com1
module /vmlinuz-2.6.31-rc8 ro root=/dev/mapper/vg_fdr12-lv_root console=hvc0 earlyprintk=xen
module /initrd-2.6.31-rc8.img
Then disconnected NUL modem cable and loaded Dom0 via :
title Xen 3.4.1 Fedora 12 Serial (2.6.31-rc8 ) (/de...
2013 Apr 04
3
[PATCH] xl: extend autoballoon xl.conf option with an "auto" option
From: David Vrabel <david.vrabel@citrix.com>
autoballoon=1 is not recommened if dom0_mem was used to reduce the
amount of dom0 memory. Instead of requiring users to change xl.conf
if they do this, extend the autoballoon option with a new choice:
"auto".
With autoballoon="auto", autoballooning will be disabled if dom0_mem
was used on the Xen command line.
For cons...
2007 Feb 01
1
Problem with dom0_mem and tmpfs on SLES10
...0.2_09749-0.7 on SLES10 for
x86, when
the initrd-xen file was loaded. On console, various messages about "No space
left on device"
appears later that the "/dev" was monted on a tmpfs filesystem (for udev).
The only sollution for this problem at that moment, was remove the
"dom0_mem=192M" and the
"mem=1024M of my GRUB configuration file (menu.lst on SuSE).
My dom0 configurations are:
- Intel(R) Xeon(TM) CPU 2.80GHz
- 1 GiB RAM
grub:
title XEN
root (hd0,0)
kernel /xen.gz dom0_mem=192M
module /vmlinuz-xen root=/dev/system/root vga=0x314
resume=/dev/syste...
2007 Nov 19
1
Recommended settings for dom0_mem when using zfs
I have a xVm b75 server and use zfs for storage (zfs root mirror and a
raid-z2 datapool.)
I see everywhere that it is recommended to have a lot of memory on a
zfs file server... but I also need to relinquish a lot of my memory to
be used by the domUs.
What would a good value for dom0_mem on a box with 4 gig of ram?
2007 Nov 19
1
Recommended settings for dom0_mem when using zfs
I have a xVm b75 server and use zfs for storage (zfs root mirror and a
raid-z2 datapool.)
I see everywhere that it is recommended to have a lot of memory on a
zfs file server... but I also need to relinquish a lot of my memory to
be used by the domUs.
What would a good value for dom0_mem on a box with 4 gig of ram?
2013 Sep 06
2
Bug#721946: Bug#721946: xen-hypervisor-4.1-amd64: dom0_mem cannot exceed some value
On Fri 06/Sep/2013 10:12:29 +0200 Ian Campbell wrote:
> On Thu, 2013-09-05 at 20:52 +0200, Alessandro Vesely wrote:
>>
>> I tried GRUB_CMDLINE_XEN="dom0_mem=8192M": that delivers 6964868K total, then
>> crashes when used=2837436K free=4127432K.
>
> On a modern dom0 kernel you need to specify the maximum memory as well,
> i.e. dom0_mem=8192M,max:8192M
Nope, I tried the string you said, and got a crash. I attach the log
file again...
2008 May 26
2
SNV82: Not enough memory is available, and dom0 cannot be shrunk any further
...h domain I get an out of memory exception:
Not enough memory is available, and dom0 cannot be shrunk any further
Each of my domains only uses 256 so I thought there would be sufficient
memory for 4 :-/
I am also using ZFS (maybe this is causing problems?) and have tried
using the kernel flag:
dom0_mem=2048M
Any ideas?
Thanks,
Christian
2008 May 06
7
Disable memory balloon in dom0
Is there any reason why I would not want to set dom0-min-mem to 0 or to
what I set dom0_mem on my kernel line? Setting to 0 or setting to the
same value as dom0_mem disables memory balloon correct? I cant seem to
think of a reason why I would want memory ballooning.
Also setting dom0-min-mem should that be done in xend-config.sxp or on
the kernel command line?
--
Nick Anderson <...
2008 Oct 09
4
Problems at installing Xen 3.3.0
...pmod 2.6.18.8-xen # mkinitrd -v -f --with=aacraid --with=sd_mod --with=scsi_mod --builtin=ata_piix initrd-2.6.18.8-xen.img 2.6.18.8-xen
# cp initrd-2.6.18.8-xen.img /boot/
7. configure grub:
default=0timeout=10splashimage=(hd0,0)/grub/splash.xpm.gzhiddenmenutitle xen-dom0 kernel /xen.gz dom0_mem=2097152 module /vmlinuz-2.6.18.8-xen ro root=LABEL=/ rhgb quiet crashkernel=128M@16M module /initrd-2.6.18.8-xen.imgtitle Red Hat Enterprise Linux Server (2.6.18-53.el5) root (hd0,0) kernel /vmlinuz-2.6.18-53.el5 ro root=LABEL=/ rhgb quiet crashkernel=128M@16M ini...
2009 Sep 16
6
Serial logs for 2.6.31 (commit 12e8537b6b29807cb9e13d728b2e5bab40424df7) under Xen Unstable on top of Ubuntu 9.04 Server
Are you expecting improvement after 09/15/2009 new-swiotlb commits ?
4097,6144, "No_dom0_mem_specified" don''t look to me to have any.
Boris.
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2005 Aug 30
3
CPU0 is toast error message
# grub.conf generated by anaconda
I recently tried installing xen on another machine and I''m getting the
"CPU0 is toast rebooting in 5 seconds" message. Reading through past
postings, I was hopeful setting the dom0_mem=128M would solve the problem.
Unfortunately, it didn''t make a difference.
I haven''t fooled with anything on this system -- just a fresh FC4 install,
updated everything with yum and tried to get xen going. The machine runs
FC4 just fine and has been up for days.
If it matters, th...
2012 Dec 19
9
kernel log flooded with: xen_balloon: reserve_additional_memory: add_memory() failed: -17
...as the Xen command
line is specifies a fixed dom0 memory allocation and noselfballooning is
specified for the kernel and ballooning is also disabled in the
xend-config.sxp / xl.conf (one system using xm, another xl)
xen command line:
placeholder xsave=0 iommu=0 console=vga,com2 com2=115200,8n1
dom0_mem=max:6144m
kernel command line:
root=/dev/loop0 ro console=tty1 console=hvc0 earlyprintk=xen nomodeset
noselfballooning
Examining /proc/iomem does show that the dom0 memory allocation is
actually 64kb short of 6144Mb:
cat /proc/iomem | grep System\ RAM
00010000-0009bfff : System RAM [57344...
2006 Aug 31
0
[PATCH] boot with default on dom0_mem allocation failure.
Hi,
this patch makes Xen boot with the default dom0_mem value when the given
value exceeds available memory, instead Xen panics and reboots.
Administrators have a chance to correct dom0_mem (and other parameters
if necessary) after Xen is up with default, seeing the warning message.
Tested by booting Domain-0.
Signed-off-by: Hiroya INAKOSHI <inako...
2010 Jun 28
0
Crash when setting dom0_mem value
Hello, I have four domU''s that have pci devices pass-true to them (one nic,
two gfx cards, one usb controller and one ide controller) and it works grate
but ballooning down memory on startup takes along time, so i tried using the
dom0_mem command in grub with different memory values but then the host will
crash on boot every time.
Software: Xen 4.0 with the official xenkernel 2.6.18.8
Hardware: Intel
DX48BT2<http://www.intel.com/products/desktop/motherboards/DX48BT2/DX48BT2-overview.htm>,8GB
ram, quad core 2.8Ghz
anyone got...
2004 Dec 28
4
error: (XEN) Not enough memory for DOM0 memory reservation.
...to the same error:
(XEN) Not enough memory for DOM0 memory reservation
Whereafter a poweroff/poweron is the only way ouy. (Machine doesn''t have a
reset button, keyboard ctrl-alt-del does not respond)
The grub entries are:
title Xen 2.0 / XenLinux 2.6.9
kernel (hd0,1)/boot/xen.gz dom0_mem=131072 console=vga
module (hd0,1)/boot/vmlinuz-2.6.9-xen0 root=/dev/hda2 ro console=tty0
title Xen2
kernel (hd0,1)/boot/xen.gz dom0_mem=65536
module (hd0,1)/boot/vmlinuz-2.6.8-24.8-xen root=/dev/hda2 vga=0x314 splash=silent desktop resume=/dev/hda1 showopts
module (...
2005 Oct 06
6
Domain 0 allocation is too small for kernel image
...on is too small for kernel image
That''s the error message I get after installing FC4 and following the
instructions on
http://www.fedoraproject.org/wiki/FedoraXenQuickstart
running kernel - 2.6.13.1. I partitioned Fedora to have 6GB on a 30GB
drive.
I have tried adjusting dom0_mem=256M on a system that has 1GB of RAM and
still no luck
Any thoughts?
-Todd
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2006 Sep 15
1
Xen Installation problems
...der tries to
install Xen but after a while it crashes and starts rebooting
recursively. I have tried both the entries listed below. I am using the
following entries in the grub.conf file:
title Xen-bhatia 3.0 / XenLinux-bhatia 2.6.16
root (hd0,0)
kernel /bhatia/boot/xen-3.0.gz dom0_mem=262144
console=ttyS0,9600n8 console=tty0
module /bhatia/boot/vmlinuz-2.6-xen root=/dev/VolGroup00/LogVol00
rhgb quiet console=ttyS0,9600n8 console=tty0
title Xen 3.0 / XenLinux 2.6.16
root (hd0,0)
kernel /xen.gz dom0_mem=262144 console=ttyS0,9600n8 console=tty0
modul...