Re: 2.6

Re: 2.6

[Björn Sessler]

Am Donnerstag, 5. August 2004 06:18 schrieb 
> Subject: [Xen-devel] 2.6
> From: James Harper <JamesH@bendigoit.com.au>
> To: Ian Pratt <Ian.Pratt@cl.cam.ac.uk>
> Cc: "xen-devel@lists.sourceforge.net" <xen-devel@lists.sourceforge.net>,
> 	<Ian.Pratt@cl.cam.ac.uk>, <mike.wray@hpl.hp.com>
> Date: Thu, 5 Aug 2004 13:29:16 +1000
>
> --_799077A3-F54B-4EA3-8322-39B78FD12470_
> Content-Type: text/plain;
> 	charset="iso-8859-1"
> Content-Transfer-Encoding: quoted-printable
>
> what's involved in building 2.6? From the looks of the makefile, 'make
> worl= d' followed by 'make linux26' then 'make install' should do it. Does
> that s= ound right?

i think you'll need to add this line
	$(shell cp -a install/boot/*$(LINUX26_VER)* /boot/)
to makefile target "make install" to copy the kernel automatically.

> thanks
>
> James
>
>
>
> From: Ian Pratt
> Sent: Thu 5/08/2004 1:15 PM
> To: James Harper
> Cc: xen-devel@lists.sourceforge.net; Ian.Pratt@cl.cam.ac.uk;
> mike.wray@hpl.= hp.com
> Subject: Re: [Xen-devel] auto startup and shutdown of domains
>
>
> BTW: For those of you that have been following the Linux 2.6.7
> port, it's actually quite stable now as both a dom0 and
> unprivileged kernel -- I've been running LTP (Linux Test Project)
> and a bunch of other tests for sometime now without
> problems. There are a number of optimizations we need to turn on,
> but performance isn't too bad. Expect 2.0-rc1 RSN...

i noticed that when 2.6-xenU is running the cpu-time in xm list is steadily 
rising, while the 2.4-xenU is nearly keeping the time when it's started and 
not used. but checkin' the 2.6 with top it shows idle = 100% like expected??? 
tell me if you need some logs or further information

one question to new io-world: 
using my avm fritz card (isdn-device) works really great in dom0 (gentoo). but 
i have problems using alsa with my onboard via-82xx in dom0 with kernel 
2.4-xen0. i'm getting an oops when trying modprobe. i will send u the log and 
displayed messages later, i want to try out how it works with an umodified 
2.4 kernel first. i decided that i have to contribute more to this really 
great project, since i noticed that the gentoo-xen0 is my only working linux 
system at the moment, it's really stable ;-) good work!!!

and one question to xensv
would it not be easier to build the xensv as a webmin-module? so u can use 
ssl, login, templates etc... from there. i know thats perl and i can't 
contribute too, but i think this is worth to think about, not?

best regards,
Björn


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Re: 2.6 / XenSV

[Tom Wilkie]

On 5 Aug 2004, at 11:52, Björn Sessler wrote:

> and one question to xensv
> would it not be easier to build the xensv as a webmin-module? so u can 
> use
> ssl, login, templates etc... from there. i know thats perl and i can't
> contribute too, but i think this is worth to think about, not?
>
> best regards,
> Björn
>

Hi

The main reason we chose to use the twisted framework to implement 
XenSV was that XenD also used twisted, and we were trying to keep our 
dependancies down.  The current version of XenSV is a bit of a toy, and 
eventually I would like to make the transport used (twisted, apache, 
etc) irrelevant and up to the end user, and add many more functions.  I 
think with twisted it would be possible to use ssl, logins etc, and we 
chose the python language as half the work was already done in 
interfacing to XenD (with xm and XendClient).

One day I will get round to adding lots more to XenSV, but hold for 
error-checking, I have no more plans before the 2.0 release, as I've 
moved on to the XenoSever software now.

Cheers

Tom



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Re: 2.6

[Christian Limpach]

On Thu, Aug 05, 2004 at 10:52:17AM +0000, Björn Sessler wrote:
> i noticed that when 2.6-xenU is running the cpu-time in xm list is steadily 
> rising, while the 2.4-xenU is nearly keeping the time when it's started and 
> not used. but checkin' the 2.6 with top it shows idle = 100% like expected??? 
> tell me if you need some logs or further information

This should be fixed since changes I made on 2004-07-20 (use 
HYERVISOR_block in the idle loop).  Are you using a recent 2.6.7-xenU
kernel?

    christian



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Re: 2.6

[Björn Sessler]

Am Donnerstag, 5. August 2004 10:03 schrieb Christian Limpach:
> On Thu, Aug 05, 2004 at 10:52:17AM +0000, Björn Sessler wrote:
> > i noticed that when 2.6-xenU is running the cpu-time in xm list is
> > steadily rising, while the 2.4-xenU is nearly keeping the time when it's
> > started and not used. but checkin' the 2.6 with top it shows idle = 100%
> > like expected??? tell me if you need some logs or further information
>
> This should be fixed since changes I made on 2004-07-20 (use
> HYERVISOR_block in the idle loop).  Are you using a recent 2.6.7-xenU
> kernel?
>
>     christian

happened with checkouts from the last days (one week i think), i nearly 
checkout every day, last was this morning about 10:00 i think. but i don't 
think i'm using previous build components because i downloaded linux-2.6.7 
source not before 25th of June... Tested on gentoo with same nfs-root as for 
the 2.4xenU system (cloned from my xen0-system). i noticed the 
XM_MODULES-Error now, but modules seem to be ok in /lib/modules/

Boot-sequence follows.

björn



root@vm0 vm # xm create -c vmid=vm110
Using config file /etc/xen/xmdefaults
Started domain vm110, console on port 9603
************ REMOTE CONSOLE: CTRL-] TO QUIT ********
Linux version 2.6.7-xenU (root@vm0) (gcc version 3.3.3 20040412 (Gentoo Linux 
3.3.3-r6, ssp-3.3.2-2, pie-8.7.6)) #1 Thu Aug 5 10:35:38 GMT 2004
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000003d00000 (usable)
61MB LOWMEM available.
On node 0 totalpages: 15616
  DMA zone: 0 pages, LIFO batch:1
  Normal zone: 15616 pages, LIFO batch:3
  HighMem zone: 0 pages, LIFO batch:1
DMI not present.
Built 1 zonelists
Kernel command line:  ip=192.168.1.110:192.168.1.100::255.255.255.0::eth0:off 
root=/dev/nfs nfsroot=192.168.1.100:/grid/vm/vm110/root gentoo=nodevfs
Initializing CPU#0
PID hash table entries: 256 (order 8: 2048 bytes)
Xen reported: 1804.161 MHz processor.
Using tsc for high-res timesource
Memory: 59916k/62464k available (1265k kernel code, 2484k reserved, 361k data, 
88k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay loop... 3552.05 BogoMIPS
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 256K (64 bytes/line)
CPU: AMD Athlon(tm) XP 2200+ stepping 00
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... disabled
NET: Registered protocol family 16
Initialising Xen virtual block device
Using anticipatory io scheduler
Xen virtual console successfully installed as tty
Event-channel device installed.
Initialising Xen virtual ethernet frontend driver<6>NET: Registered protocol 
family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 8192)
NET: Registered protocol family 1
NET: Registered protocol family 17
IP-Config: Complete:
      device=eth0, addr=192.168.1.110, mask=255.255.255.0, gw=255.255.255.255,
     host=192.168.1.110, domain=, nis-domain=(none),
     bootserver=192.168.1.100, rootserver=192.168.1.100, rootpath=
Looking up port of RPC 100003/2 on 192.168.1.100
Looking up port of RPC 100005/1 on 192.168.1.100
VFS: Mounted root (nfs filesystem).
Freeing unused kernel memory: 88k freed
INIT: version 2.84 booting

Gentoo Linux; http://www.gentoo.org/
 Copyright 2001-2004 Gentoo Technologies, Inc.; Distributed under the GPL

 * Mounting proc at /proc...  [ ok ]
 * Mounting sysfs at /sys...  [ ok ]
 * Mounting devpts at /dev/pts...  [ ok ]
 * Activating (possible) swap...Adding 2048248k swap on /dev/hdb5.  
Priority:-1 extents:1
  [ ok ]
 * Remounting root filesystem read/write...  [ ok ]
 * Setting hostname to vm110...  [ ok ]
 * Calculating module dependencies... * Failed to calculate dependencies
  [ !! ]

modprobe: QM_MODULES: Function not implemented

 * Failed to start /etc/init.d/modules
 * Mounting local filesystems...  [ ok ]
 * Activating (possibly) more swap...  [ ok ]
 * Caching service dependencies... * Configuring kernel parameters...  [ ok ]
 * Updating environment...  [ ok ]
 * Cleaning /var/lock, /var/run...  [ ok ]
 * Cleaning /tmp directory...  [ ok ]
 * Bringing lo up...  [ ok ]
 * Initializing random number generator...  [ ok ]
INIT: Entering runlevel: 5
 * Starting portmap...  [ ok ]
 * Mounting network filesystems...  [ ok ]
 * Starting syslog-ng...  [ ok ]
 * Setting DNS domainname to g.int.bjs.vernetzte-welt.de...  [ ok ]
 * Starting sshd...  [ ok ]
 * Starting local...  [ ok ]


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Re: 2.6

[Tom Wilkie]

You need to install new version of mod-utils for 2.6

Its well documented on the web some where.

Tom

On 5 Aug 2004, at 13:43, Björn Sessler wrote:

> Am Donnerstag, 5. August 2004 10:03 schrieb Christian Limpach:
>> On Thu, Aug 05, 2004 at 10:52:17AM +0000, Björn Sessler wrote:
>>> i noticed that when 2.6-xenU is running the cpu-time in xm list is
>>> steadily rising, while the 2.4-xenU is nearly keeping the time when 
>>> it's
>>> started and not used. but checkin' the 2.6 with top it shows idle = 
>>> 100%
>>> like expected??? tell me if you need some logs or further information
>>
>> This should be fixed since changes I made on 2004-07-20 (use
>> HYERVISOR_block in the idle loop).  Are you using a recent 2.6.7-xenU
>> kernel?
>>
>>     christian
>
> happened with checkouts from the last days (one week i think), i nearly
> checkout every day, last was this morning about 10:00 i think. but i 
> don't
> think i'm using previous build components because i downloaded 
> linux-2.6.7
> source not before 25th of June... Tested on gentoo with same nfs-root 
> as for
> the 2.4xenU system (cloned from my xen0-system). i noticed the
> XM_MODULES-Error now, but modules seem to be ok in /lib/modules/
>
> Boot-sequence follows.
>
> björn
>
>
>
> root@vm0 vm # xm create -c vmid=vm110
> Using config file /etc/xen/xmdefaults
> Started domain vm110, console on port 9603
> ************ REMOTE CONSOLE: CTRL-] TO QUIT ********
> Linux version 2.6.7-xenU (root@vm0) (gcc version 3.3.3 20040412 
> (Gentoo Linux
> 3.3.3-r6, ssp-3.3.2-2, pie-8.7.6)) #1 Thu Aug 5 10:35:38 GMT 2004
> BIOS-provided physical RAM map:
>  Xen: 0000000000000000 - 0000000003d00000 (usable)
> 61MB LOWMEM available.
> On node 0 totalpages: 15616
>   DMA zone: 0 pages, LIFO batch:1
>   Normal zone: 15616 pages, LIFO batch:3
>   HighMem zone: 0 pages, LIFO batch:1
> DMI not present.
> Built 1 zonelists
> Kernel command line:  
> ip=192.168.1.110:192.168.1.100::255.255.255.0::eth0:off
> root=/dev/nfs nfsroot=192.168.1.100:/grid/vm/vm110/root gentoo=nodevfs
> Initializing CPU#0
> PID hash table entries: 256 (order 8: 2048 bytes)
> Xen reported: 1804.161 MHz processor.
> Using tsc for high-res timesource
> Memory: 59916k/62464k available (1265k kernel code, 2484k reserved, 
> 361k data,
> 88k init, 0k highmem)
> Checking if this processor honours the WP bit even in supervisor 
> mode... Ok.
> Calibrating delay loop... 3552.05 BogoMIPS
> Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
> Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
> Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
> CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
> CPU: L2 Cache: 256K (64 bytes/line)
> CPU: AMD Athlon(tm) XP 2200+ stepping 00
> Enabling fast FPU save and restore... done.
> Enabling unmasked SIMD FPU exception support... done.
> Checking 'hlt' instruction... disabled
> NET: Registered protocol family 16
> Initialising Xen virtual block device
> Using anticipatory io scheduler
> Xen virtual console successfully installed as tty
> Event-channel device installed.
> Initialising Xen virtual ethernet frontend driver<6>NET: Registered 
> protocol
> family 2
> IP: routing cache hash table of 512 buckets, 4Kbytes
> TCP: Hash tables configured (established 4096 bind 8192)
> NET: Registered protocol family 1
> NET: Registered protocol family 17
> IP-Config: Complete:
>       device=eth0, addr=192.168.1.110, mask=255.255.255.0, 
> gw=255.255.255.255,
>      host=192.168.1.110, domain=, nis-domain=(none),
>      bootserver=192.168.1.100, rootserver=192.168.1.100, rootpath=
> Looking up port of RPC 100003/2 on 192.168.1.100
> Looking up port of RPC 100005/1 on 192.168.1.100
> VFS: Mounted root (nfs filesystem).
> Freeing unused kernel memory: 88k freed
> INIT: version 2.84 booting
>
> Gentoo Linux; http://www.gentoo.org/
>  Copyright 2001-2004 Gentoo Technologies, Inc.; Distributed under the 
> GPL
>
>  * Mounting proc at /proc...  [ ok ]
>  * Mounting sysfs at /sys...  [ ok ]
>  * Mounting devpts at /dev/pts...  [ ok ]
>  * Activating (possible) swap...Adding 2048248k swap on /dev/hdb5.
> Priority:-1 extents:1
>   [ ok ]
>  * Remounting root filesystem read/write...  [ ok ]
>  * Setting hostname to vm110...  [ ok ]
>  * Calculating module dependencies... * Failed to calculate 
> dependencies
>   [ !! ]
>
> modprobe: QM_MODULES: Function not implemented
>
>  * Failed to start /etc/init.d/modules
>  * Mounting local filesystems...  [ ok ]
>  * Activating (possibly) more swap...  [ ok ]
>  * Caching service dependencies... * Configuring kernel parameters...  
> [ ok ]
>  * Updating environment...  [ ok ]
>  * Cleaning /var/lock, /var/run...  [ ok ]
>  * Cleaning /tmp directory...  [ ok ]
>  * Bringing lo up...  [ ok ]
>  * Initializing random number generator...  [ ok ]
> INIT: Entering runlevel: 5
>  * Starting portmap...  [ ok ]
>  * Mounting network filesystems...  [ ok ]
>  * Starting syslog-ng...  [ ok ]
>  * Setting DNS domainname to g.int.bjs.vernetzte-welt.de...  [ ok ]
>  * Starting sshd...  [ ok ]
>  * Starting local...  [ ok ]
>
>
> -------------------------------------------------------
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> Linux.com, ITManagersJournal and NewsForge in the past few weeks? Now,
> one more big change to announce. We are now OSTG- Open Source 
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> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/xen-devel
>



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Re: 2.6

[Björn Sessler]

Am Donnerstag, 5. August 2004 11:00 schrieb Tom Wilkie:
> You need to install new version of mod-utils for 2.6
>
> Its well documented on the web some where.
>
> Tom

thanks, modutils 2.4.25 were installed before, but installing the 
module-init-tools removed the error with depmod, but the cpu-time is still 
rising very fast... 

björn

>
> On 5 Aug 2004, at 13:43, Björn Sessler wrote:
> > Am Donnerstag, 5. August 2004 10:03 schrieb Christian Limpach:
> >> On Thu, Aug 05, 2004 at 10:52:17AM +0000, Björn Sessler wrote:
> >>> i noticed that when 2.6-xenU is running the cpu-time in xm list is
> >>> steadily rising, while the 2.4-xenU is nearly keeping the time when
> >>> it's
> >>> started and not used. but checkin' the 2.6 with top it shows idle =
> >>> 100%
> >>> like expected??? tell me if you need some logs or further information
> >>
> >> This should be fixed since changes I made on 2004-07-20 (use
> >> HYERVISOR_block in the idle loop).  Are you using a recent 2.6.7-xenU
> >> kernel?
> >>
> >>     christian
> >
> > happened with checkouts from the last days (one week i think), i nearly
> > checkout every day, last was this morning about 10:00 i think. but i
> > don't
> > think i'm using previous build components because i downloaded
> > linux-2.6.7
> > source not before 25th of June... Tested on gentoo with same nfs-root
> > as for
> > the 2.4xenU system (cloned from my xen0-system). i noticed the
> > XM_MODULES-Error now, but modules seem to be ok in /lib/modules/
> >
> > Boot-sequence follows.
> >
> > björn
> >
> >
> >
> > root@vm0 vm # xm create -c vmid=vm110
> > Using config file /etc/xen/xmdefaults
> > Started domain vm110, console on port 9603
> > ************ REMOTE CONSOLE: CTRL-] TO QUIT ********
> > Linux version 2.6.7-xenU (root@vm0) (gcc version 3.3.3 20040412
> > (Gentoo Linux
> > 3.3.3-r6, ssp-3.3.2-2, pie-8.7.6)) #1 Thu Aug 5 10:35:38 GMT 2004
> > BIOS-provided physical RAM map:
> >  Xen: 0000000000000000 - 0000000003d00000 (usable)
> > 61MB LOWMEM available.
> > On node 0 totalpages: 15616
> >   DMA zone: 0 pages, LIFO batch:1
> >   Normal zone: 15616 pages, LIFO batch:3
> >   HighMem zone: 0 pages, LIFO batch:1
> > DMI not present.
> > Built 1 zonelists
> > Kernel command line:
> > ip=192.168.1.110:192.168.1.100::255.255.255.0::eth0:off
> > root=/dev/nfs nfsroot=192.168.1.100:/grid/vm/vm110/root gentoo=nodevfs
> > Initializing CPU#0
> > PID hash table entries: 256 (order 8: 2048 bytes)
> > Xen reported: 1804.161 MHz processor.
> > Using tsc for high-res timesource
> > Memory: 59916k/62464k available (1265k kernel code, 2484k reserved,
> > 361k data,
> > 88k init, 0k highmem)
> > Checking if this processor honours the WP bit even in supervisor
> > mode... Ok.
> > Calibrating delay loop... 3552.05 BogoMIPS
> > Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
> > Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
> > Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
> > CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
> > CPU: L2 Cache: 256K (64 bytes/line)
> > CPU: AMD Athlon(tm) XP 2200+ stepping 00
> > Enabling fast FPU save and restore... done.
> > Enabling unmasked SIMD FPU exception support... done.
> > Checking 'hlt' instruction... disabled
> > NET: Registered protocol family 16
> > Initialising Xen virtual block device
> > Using anticipatory io scheduler
> > Xen virtual console successfully installed as tty
> > Event-channel device installed.
> > Initialising Xen virtual ethernet frontend driver<6>NET: Registered
> > protocol
> > family 2
> > IP: routing cache hash table of 512 buckets, 4Kbytes
> > TCP: Hash tables configured (established 4096 bind 8192)
> > NET: Registered protocol family 1
> > NET: Registered protocol family 17
> > IP-Config: Complete:
> >       device=eth0, addr=192.168.1.110, mask=255.255.255.0,
> > gw=255.255.255.255,
> >      host=192.168.1.110, domain=, nis-domain=(none),
> >      bootserver=192.168.1.100, rootserver=192.168.1.100, rootpath=
> > Looking up port of RPC 100003/2 on 192.168.1.100
> > Looking up port of RPC 100005/1 on 192.168.1.100
> > VFS: Mounted root (nfs filesystem).
> > Freeing unused kernel memory: 88k freed
> > INIT: version 2.84 booting
> >
> > Gentoo Linux; http://www.gentoo.org/
> >  Copyright 2001-2004 Gentoo Technologies, Inc.; Distributed under the
> > GPL
> >
> >  * Mounting proc at /proc...  [ ok ]
> >  * Mounting sysfs at /sys...  [ ok ]
> >  * Mounting devpts at /dev/pts...  [ ok ]
> >  * Activating (possible) swap...Adding 2048248k swap on /dev/hdb5.
> > Priority:-1 extents:1
> >   [ ok ]
> >  * Remounting root filesystem read/write...  [ ok ]
> >  * Setting hostname to vm110...  [ ok ]
> >  * Calculating module dependencies... * Failed to calculate
> > dependencies
> >   [ !! ]
> >
> > modprobe: QM_MODULES: Function not implemented
> >
> >  * Failed to start /etc/init.d/modules
> >  * Mounting local filesystems...  [ ok ]
> >  * Activating (possibly) more swap...  [ ok ]
> >  * Caching service dependencies... * Configuring kernel parameters...
> > [ ok ]
> >  * Updating environment...  [ ok ]
> >  * Cleaning /var/lock, /var/run...  [ ok ]
> >  * Cleaning /tmp directory...  [ ok ]
> >  * Bringing lo up...  [ ok ]
> >  * Initializing random number generator...  [ ok ]
> > INIT: Entering runlevel: 5
> >  * Starting portmap...  [ ok ]
> >  * Mounting network filesystems...  [ ok ]
> >  * Starting syslog-ng...  [ ok ]
> >  * Setting DNS domainname to g.int.bjs.vernetzte-welt.de...  [ ok ]
> >  * Starting sshd...  [ ok ]
> >  * Starting local...  [ ok ]
> >
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by OSTG. Have you noticed the changes on
> > Linux.com, ITManagersJournal and NewsForge in the past few weeks? Now,
> > one more big change to announce. We are now OSTG- Open Source
> > Technology
> > Group. Come see the changes on the new OSTG site. www.ostg.com
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/xen-devel


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Re: 2.6

[Ian Pratt]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 1645 bytes --]

> Am Donnerstag, 5. August 2004 10:03 schrieb Christian Limpach:
> > On Thu, Aug 05, 2004 at 10:52:17AM +0000, Björn Sessler wrote:
> > > i noticed that when 2.6-xenU is running the cpu-time in xm list is
> > > steadily rising, while the 2.4-xenU is nearly keeping the time when it's
> > > started and not used. but checkin' the 2.6 with top it shows idle = 100%
> > > like expected??? tell me if you need some logs or further information
> >
> > This should be fixed since changes I made on 2004-07-20 (use
> > HYERVISOR_block in the idle loop).  Are you using a recent 2.6.7-xenU
> > kernel?
> 
> happened with checkouts from the last days (one week i think), i nearly 
> checkout every day, last was this morning about 10:00 i think. but i don't 
> think i'm using previous build components because i downloaded linux-2.6.7 
> source not before 25th of June... Tested on gentoo with same nfs-root as for 
> the 2.4xenU system (cloned from my xen0-system). i noticed the 
> XM_MODULES-Error now, but modules seem to be ok in /lib/modules/

Christian and I have been looking in to this.

We believe it's a bizarre 'feature' of the network Bridge code in
2.6.

Please try removing the 'brctl sethello ${bridge} 0' line
in /etc/xen/network and you should find your system runs
considerably faster!

Best,
Ian


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Device-Drivers in dom0

[Björn Sessler]

Am Donnerstag, 5. August 2004 06:18 schrieb

> one question to new io-world:
> using my avm fritz card (isdn-device) works really great in dom0 (gentoo).
> but i have problems using alsa with my onboard via-82xx in dom0 with kernel
> 2.4-xen0. i'm getting an oops when trying modprobe. i will send u the log
> and displayed messages later, i want to try out how it works with an
> umodified 2.4 kernel first. i decided that i have to contribute more to
> this really great project, since i noticed that the gentoo-xen0 is my only
> working linux system at the moment, it's really stable ;-) good work!!!

hi again,

now i've checked with an unmodified 2.4 kernel and sound was ok. with the 2.4 
xen0 kernel following happens when trying to start alsa after the alsa-driver 
was installed (with same xen0 kernel, sound-module was compiled in before and 
doesn't make problems without the alsa-drivers installed). after the oops 
i've to delete all xen0 modules in /lib/modules and install new to avoid 
crashes when logging in as non-root (don't know why, alsa is not started 
automatically and shouldn't be initialised when logging in as normal user). 
once crashed, theres no chance to use other pci-devices like the described 
isdn-card. the system will freeze when i'm trying to start a connection.

regards,
björn

/var/log/messages after /etc/init.d/alsasound start (shown on console when 
logging in as normal, non-root user):

Aug  5 13:11:09 vm0 modprobe: modprobe: Can't locate module snd-seq-client-62
Aug  5 13:11:09 vm0 PCI: Obtained IRQ 11 for device 00:11.5
Aug  5 13:11:09 vm0 PCI: Setting latency timer of device 00:11.5 to 64
Aug  5 13:11:09 vm0 Unable to handle kernel NULL pointer dereference at 
virtual address 0000001b
Aug  5 13:11:09 vm0 printing eip:
Aug  5 13:11:09 vm0 d063effa
Aug  5 13:11:09 vm0 *pde=00000000(55555000)
Aug  5 13:11:09 vm0 Oops: 0000
Aug  5 13:11:09 vm0 CPU:    0
Aug  5 13:11:09 vm0 EIP:    0819:[<d063effa>]    Tainted: P
Aug  5 13:11:09 vm0 EFLAGS: 00213246
Aug  5 13:11:09 vm0 eax: 00000000   ebx: 00000000   ecx: 000009a0   edx: 
01366000
Aug  5 13:11:09 vm0 esi: 00000000   edi: d0668000   ebp: c3714280   esp: 
c1fe9db0
Aug  5 13:11:09 vm0 ds: 0821   es: 0821   ss: 0821
Aug  5 13:11:09 vm0 Process modprobe (pid: 6260, stackpage=c1fe9000)<1>
Aug  5 13:11:09 vm0 Stack: d0668000 00010000 00000000 c3714280 00010000 
ccfd9ee4 00000010 d063f2e6
Aug  5 13:11:09 vm0 c3714280 d0668000 00000010 c71c2d20 00000020 00000080 
ccfd9ee4 00010000
Aug  5 13:11:09 vm0 ccfd9ed8 00020000 d063e54f ccfd9ed8 00010000 ccfd9ee4 
00000000 00010000
Aug  5 13:11:09 vm0 Call Trace: [<d063f2e6>] [<d063e54f>] [<d064d7b0>] 
[<d064db17>] [<d064dc04>]
Aug  5 13:11:09 vm0 [<d0662320>] [<d0663845>] [<d066423c>] [<d0664680>] 
[<c027bfb5>] [<d066423c>]
Aug  5 13:11:09 vm0 [<d0664680>] [<c027c05c>] [<d0664680>] [<d0663a63>] 
[<d0664680>] [<c010a500>]
Aug  5 13:11:09 vm0 [<d0664160>] [<d0661060>] [<c01f5963>]
Aug  5 13:11:09 vm0
Aug  5 13:11:11 vm0 rc-scripts: No mixer config in /etc/asound.state, you have 
to unmute your card!


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Re: auto startup and shutdown of domains

[Ian Pratt]

> How do I get domains to automatically start up at boot time (or when xend start) and shutdown when xend is killed? There used to be a xendomains script which I never tried but it appears to be gone now, and there is a /etc/xen/auto folder, but that doesn't seem to do anything either.

I'm not sure what the intended use of 'auto' is, but it would
seem to make sense to have xend check that all the VM configs specified
in /etc/xen/auto are running whenever it starts. Of course, these
configs would have to not have any input parameters (e.g. vmid).

I think I'd prefer to add another level of directory hierachy
below /etc/xen to separate the domain configs from the other
config files and scripts, perhaps an /etc/xen/xmconfigs

I'm then inclined to change the default config name from
/etc/xen/xmdefaults to /etc/xen/xmconfigs/defconfig since
'defaults' no longer really makes sense for the way 99% of people
use 'xm'. Rather than shipping a defconfig in the repo (which
always needs tailoring), we'll supply an example1 and
example2. The former will be a very simple config without any
input variables, and the 2nd will show a more complex example.

Any objections?

BTW: For those of you that have been following the Linux 2.6.7
port, it's actually quite stable now as both a dom0 and
unprivileged kernel -- I've been running LTP (Linux Test Project)
and a bunch of other tests for sometime now without
problems. There are a number of optimizations we need to turn on,
but performance isn't too bad. Expect 2.0-rc1 RSN...

Best,
Ian

\x1f -=- MIME -=- \x1f\f

--_D631781F-9CAF-4E16-A6A9-F59D7CE3605F_
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

How do I get domains to automatically start up at boot time (or when xend s=
tart) and shutdown when xend is killed? There used to be a xendomains scrip=
t which I never tried but it appears to be gone now, and there is a /etc/xe=
n/auto folder, but that doesn't seem to do anything either.

any ideas?

thanks

James

--_D631781F-9CAF-4E16-A6A9-F59D7CE3605F_
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<HTML dir=3Dltr><HEAD></HEAD>
<BODY>
<DIV><FONT face=3DArial color=3D#000000 size=3D2>How do I get domains to au=
tomatically start up at boot time (or when xend start) and shutdown when xe=
nd is killed? There used to be a xendomains script which I never tried but =
it appears to be gone now, and there is a /etc/xen/auto folder, but that do=
esn't seem to do anything either.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>any ideas?</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>thanks</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>James</FONT></DIV></BODY></HTML>

--_D631781F-9CAF-4E16-A6A9-F59D7CE3605F_--


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2.6

[James Harper]

[-- Attachment #1: Type: text/plain, Size: 764 bytes --]

what's involved in building 2.6? From the looks of the makefile, 'make world' followed by 'make linux26' then 'make install' should do it. Does that sound right?

thanks

James



From: Ian Pratt
Sent: Thu 5/08/2004 1:15 PM
To: James Harper
Cc: xen-devel@lists.sourceforge.net; Ian.Pratt@cl.cam.ac.uk; mike.wray@hpl.hp.com
Subject: Re: [Xen-devel] auto startup and shutdown of domains


BTW: For those of you that have been following the Linux 2.6.7
port, it's actually quite stable now as both a dom0 and
unprivileged kernel -- I've been running LTP (Linux Test Project)
and a bunch of other tests for sometime now without
problems. There are a number of optimizations we need to turn on,
but performance isn't too bad. Expect 2.0-rc1 RSN...

[-- Attachment #2: Type: text/html, Size: 1304 bytes --]

Re: 2.6

[Ian Pratt]

> what's involved in building 2.6? From the looks of the makefile, 'make world' followed by 'make linux26' then 'make install' should do it. Does that sound right?

Yep, that should work. We haven't added it to 'make world' yet
as it's still in testing. We've been holding off releasing 2.0
until we're totally happy with it.

I know of at least one remaining bug whereby in systems with
complex PCI bus layouts it may miss some devices. I haven't seen
any crashes since a crucial fix went in yesterday.

Ian


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