[Qemu-devel] -kernel-kqemu option causes kernel-panic

[Qemu-devel] -kernel-kqemu option causes kernel-panic

[Halim Sahin]

Hello list,

I experienced several problems with qemu under linux using kernel 
2.6.18.
The guest system is a debian testing, the host a debian unstable.
kqemu is the newest version from www.qemu.org.
The guest can not start if I give -kernel-kqemu.
The last message is kernel panic.

Another problem is the performance of the guest harddisk.
There is no ide dma aktivated and hdparm fails to aktivate it.

If I try to shutdown the guest, I am only getting system halted but the 
qemu did not shutdown.

What can I do to solve this?
Thanks
a  lot.
Halim

Re: [Qemu-devel] -kernel-kqemu option causes kernel-panic

[Brad Campbell]

Halim Sahin wrote:
> Hello list,
> 
> I experienced several problems with qemu under linux using kernel 
> 2.6.18.
> The guest system is a debian testing, the host a debian unstable.
> kqemu is the newest version from www.qemu.org.
> The guest can not start if I give -kernel-kqemu.
> The last message is kernel panic.
> 
> Another problem is the performance of the guest harddisk.
> There is no ide dma aktivated and hdparm fails to aktivate it.
> 
> If I try to shutdown the guest, I am only getting system halted but the 
> qemu did not shutdown.

What version of qemu are you using ?

Brad
-- 
"Human beings, who are almost unique in having the ability
to learn from the experience of others, are also remarkable
for their apparent disinclination to do so." -- Douglas Adams

Re: [Qemu-devel] -kernel-kqemu option causes kernel-panic

[Halim Sahin]

On Do, Mär 15, 2007 at 11:12:41 +0400, Brad Campbell wrote:
> Halim Sahin wrote:
> >Hello list,
> >
> >I experienced several problems with qemu under linux using kernel 
> >2.6.18.
> >The guest system is a debian testing, the host a debian unstable.
> >kqemu is the newest version from www.qemu.org.
> >The guest can not start if I give -kernel-kqemu.
> >The last message is kernel panic.
> >
> >Another problem is the performance of the guest harddisk.
> >There is no ide dma aktivated and hdparm fails to aktivate it.
> >
> >If I try to shutdown the guest, I am only getting system halted but the 
> >qemu did not shutdown.
> 
> What version of qemu are you using ?
I am using qemu 0.9.0 but this problem happends with 0.8.2 too.

Halim

Re: [Qemu-devel] -kernel-kqemu option causes kernel-panic

[Christian MICHON]

is it on a freshly created qemu image, or one created with qemu
<= 0.8.2 ?

what is the format of the qemu image ? raw, qcow, qcow2 ?

right now (and I'm on windows hosts), latest qemu and 0.9.0
work well. Most of the pb I see with kernel-kqemu are
time out on hdc (cdrom) if I boot on hda with linux guests.

what happens if you use a slax bootable iso, booting on
it and accessing your data on hda ? this works for me
and is very stable now since qemu 0.8.2.

On 3/15/07, Halim Sahin <halim.sahin@t-online.de> wrote:
> On Do, Mär 15, 2007 at 11:12:41 +0400, Brad Campbell wrote:
> > Halim Sahin wrote:
> > >Hello list,
> > >
> > >I experienced several problems with qemu under linux using kernel
> > >2.6.18.
> > >The guest system is a debian testing, the host a debian unstable.
> > >kqemu is the newest version from www.qemu.org.
> > >The guest can not start if I give -kernel-kqemu.
> > >The last message is kernel panic.
> > >
> > >Another problem is the performance of the guest harddisk.
> > >There is no ide dma aktivated and hdparm fails to aktivate it.
> > >
> > >If I try to shutdown the guest, I am only getting system halted but the
> > >qemu did not shutdown.
> >
> > What version of qemu are you using ?
> I am using qemu 0.9.0 but this problem happends with 0.8.2 too.
>
> Halim
>
>
>
>
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://lists.nongnu.org/mailman/listinfo/qemu-devel
>


-- 
Christian

Re: [Qemu-devel] -kernel-kqemu option causes kernel-panic

[Halim Sahin]

Hello,
On Thu, Mar 15, 2007 at 09:14:46AM +0100, Christian MICHON wrote:
> is it on a freshly created qemu image, or one created with qemu
> <= 0.8.2 ?
0.8.2 was used to create the image

> 
> what is the format of the qemu image ? raw, qcow, qcow2 ?

Raw
> 
> right now (and I'm on windows hosts), latest qemu and 0.9.0
> work well. Most of the pb I see with kernel-kqemu are
> time out on hdc (cdrom) if I boot on hda with linux guests.
> 
> what happens if you use a slax bootable iso, booting on
> it and accessing your data on hda ? this works for me
> and is very stable now since qemu 0.8.2.
> 
Hmm I tested it now on my other host system.
There is a kernel 2.6.15 running under debian sarge.
All works fine. the described errors are not visible.

There runs a qemu 0.8.2 too but the kqemu module is an older version.

Perhaps the kqemu module causes these problems??
Thanks
Halim

Re: [Qemu-devel] -kernel-kqemu option causes kernel-panic

[Christian MICHON]

On 3/15/07, Halim Sahin <halim.sahin@t-online.de> wrote:
> Hello,
> On Thu, Mar 15, 2007 at 09:14:46AM +0100, Christian MICHON wrote:
> > is it on a freshly created qemu image, or one created with qemu
> > <= 0.8.2 ?
> 0.8.2 was used to create the image
>
> >
> > what is the format of the qemu image ? raw, qcow, qcow2 ?
>
> Raw

I wanted to discard any change of behaviour between formats
and releases of qemu-img. You could have had a compressed
encrypted qcow(2) for example...


> >
> > right now (and I'm on windows hosts), latest qemu and 0.9.0
> > work well. Most of the pb I see with kernel-kqemu are
> > time out on hdc (cdrom) if I boot on hda with linux guests.
> >
> > what happens if you use a slax bootable iso, booting on
> > it and accessing your data on hda ? this works for me
> > and is very stable now since qemu 0.8.2.
> >
> Hmm I tested it now on my other host system.
> There is a kernel 2.6.15 running under debian sarge.
> All works fine. the described errors are not visible.
>
> There runs a qemu 0.8.2 too but the kqemu module is an older version.
>
> Perhaps the kqemu module causes these problems??
> Thanks
> Halim
>

I'm using the latest kqemu each time, and it works...

-- 
Christian

Re: [Qemu-devel] -kernel-kqemu option causes kernel-panic

[Halim Sahin]

Hello,
Now i tried the newest kqemu module under sarge with kernel 2.6.15 as 
host and all works fine.
The big question is now why does the same vm not work under the
qemu host with kernel 2.6.18 under debian testing?????????
Now I.ll try qemu 0.9.0 under my stable sarge system.
Any Ideas what to do to get this work under kernel 2.6.18?
Thanks
Halim

Re: [Qemu-devel] -kernel-kqemu option causes kernel-panic

[Aurelien Jarno]

Halim Sahin a écrit :
> On Do, Mär 15, 2007 at 11:12:41 +0400, Brad Campbell wrote:
>> Halim Sahin wrote:
>>> Hello list,
>>>
>>> I experienced several problems with qemu under linux using kernel 
>>> 2.6.18.
>>> The guest system is a debian testing, the host a debian unstable.
>>> kqemu is the newest version from www.qemu.org.
>>> The guest can not start if I give -kernel-kqemu.
>>> The last message is kernel panic.
>>>
>>> Another problem is the performance of the guest harddisk.
>>> There is no ide dma aktivated and hdparm fails to aktivate it.
>>>
>>> If I try to shutdown the guest, I am only getting system halted but the 
>>> qemu did not shutdown.
>> What version of qemu are you using ?
> I am using qemu 0.9.0 but this problem happends with 0.8.2 too.
> 

You mean the Debian one from testing/unstable or experimental? In that
case, it is a know problem, see http://bugs.debian.org/402289

In short, don't use kqemu if you use the Debian qemu package, or install
qemu from sources.

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net

Re: [Qemu-devel] -kernel-kqemu option causes kernel-panic

[Halim Sahin]

Hello,

On Do, Mär 15, 2007 at 10:21:14 +0100, Aurelien Jarno wrote:
> Halim Sahin a écrit :
> > On Do, Mär 15, 2007 at 11:12:41 +0400, Brad Campbell wrote:
> >> Halim Sahin wrote:
> >>> Hello list,
> >>>
> >>> I experienced several problems with qemu under linux using kernel 
> >>> 2.6.18.
> >>> The guest system is a debian testing, the host a debian unstable.
> >>> kqemu is the newest version from www.qemu.org.
> >>> The guest can not start if I give -kernel-kqemu.
> >>> The last message is kernel panic.
> >>>
> >>> Another problem is the performance of the guest harddisk.
> >>> There is no ide dma aktivated and hdparm fails to aktivate it.
> >>>
> >>> If I try to shutdown the guest, I am only getting system halted but the 
> >>> qemu did not shutdown.
> >> What version of qemu are you using ?
> > I am using qemu 0.9.0 but this problem happends with 0.8.2 too.
> > 
> 
> You mean the Debian one from testing/unstable or experimental? In that
> case, it is a know problem, see http://bugs.debian.org/402289
> 
> In short, don't use kqemu if you use the Debian qemu package, or install
> qemu from sources.
> 
kI tried to build qemu from sources but that did not help.
I.ll try it again.

Now I build qemu 0.9.0 under my sarge system and the dma-problem is 
back and the hardisk performance is very bad.
That seems to be a qemu 0.9.0 problem because under 0.8.2 works fine.
Thanks
Halim

Re: [Qemu-devel] -kernel-kqemu option causes kernel-panic

[Halim Sahin]

Hi,

Small addition to my previous mail:
The shutdown doesn't work too.
Last message is system halted but qemu does not shut down.

Best regards
Halim

-- 
Halim Sahin
E-Mail:				
halim.sahin (at) t-online.de

Re: [Qemu-devel] -kernel-kqemu option causes kernel-panic

[Halim Sahin]

Hello,
Is the cvs-repo of qemu down?
cvs -z3 -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/qemu co 
qemu
gives me a timeout after a few minutes.

The qemu release 0.9.0 does not work for me.
1. DMA not activable in guest
2. kernel-kqemu causes kernel panic (not the debian package)
3. The shutdown does not work  

so I want to try a cvs version of qemu.

Halim

Re: [Qemu-devel] -kernel-kqemu option causes kernel-panic

[Brad Campbell]

Halim Sahin wrote:
> Hello,
> Is the cvs-repo of qemu down?
> cvs -z3 -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/qemu co 
> qemu
> gives me a timeout after a few minutes.
> 
> The qemu release 0.9.0 does not work for me.
> 1. DMA not activable in guest
> 2. kernel-kqemu causes kernel panic (not the debian package)
> 3. The shutdown does not work  

That sounds exactly like what happens when your bios is not the same bios that qemu is using. Are 
you properly installing your bios files?? Make sure you update them every time you update qemu.

brad@bklaptop2:~$ ls /usr/local/share/qemu/ -l
total 732
-rw-r--r-- 1 root root 131072 2007-02-12 09:20 bios.bin
drwxr-xr-x 2 root root   4096 2006-05-23 16:24 keymaps
-rw-r--r-- 1 root root    512 2006-09-28 19:24 linux_boot.bin
-rw-r--r-- 1 root root 524288 2006-09-28 19:24 ppc_rom.bin
-rw-r--r-- 1 root root  37888 2006-09-28 19:24 vgabios.bin
-rw-r--r-- 1 root root  35328 2006-09-28 19:24 vgabios-cirrus.bin

Brad
-- 
"Human beings, who are almost unique in having the ability
to learn from the experience of others, are also remarkable
for their apparent disinclination to do so." -- Douglas Adams

Re: [Qemu-devel] -kernel-kqemu option causes kernel-panic

[Halim Sahin]

Hello,

I came to the same solution  after testing qemu on several machines.
The debian packages seem to have this Problem too.
Thanks 

On Do, Mär 15, 2007 at 03:58:52 +0400, Brad Campbell wrote:
> Halim Sahin wrote:
> >Hello,
> >Is the cvs-repo of qemu down?
> >cvs -z3 -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/qemu co 
> >qemu
> >gives me a timeout after a few minutes.
> >
> >The qemu release 0.9.0 does not work for me.
> >1. DMA not activable in guest
> >2. kernel-kqemu causes kernel panic (not the debian package)
> >3. The shutdown does not work  
> 
> That sounds exactly like what happens when your bios is not the same bios 
> that qemu is using. Are you properly installing your bios files?? Make sure 
> you update them every time you update qemu.
> 
> brad@bklaptop2:~$ ls /usr/local/share/qemu/ -l
> total 732
> -rw-r--r-- 1 root root 131072 2007-02-12 09:20 bios.bin
> drwxr-xr-x 2 root root   4096 2006-05-23 16:24 keymaps
> -rw-r--r-- 1 root root    512 2006-09-28 19:24 linux_boot.bin
> -rw-r--r-- 1 root root 524288 2006-09-28 19:24 ppc_rom.bin
> -rw-r--r-- 1 root root  37888 2006-09-28 19:24 vgabios.bin
> -rw-r--r-- 1 root root  35328 2006-09-28 19:24 vgabios-cirrus.bin
> 
> Brad
> -- 
> "Human beings, who are almost unique in having the ability
> to learn from the experience of others, are also remarkable
> for their apparent disinclination to do so." -- Douglas Adams
> 
> 
> _______________________________________________
> Qemu-devel mailing list
> Qemu-devel@nongnu.org
> http://lists.nongnu.org/mailman/listinfo/qemu-devel

-- 
Halim Sahin
E-Mail:				
halim.sahin (at) t-online.de