kernel name confusion and no config.h in 2.6.18-1.2741 ?

[Paul Wouters]

# ls -l /usr/src/kernels/
total 4
drwxr-xr-x 19 root root 4096 Oct  6 12:06 2.6.18-1.2741.fc6-xen-i686
lrwxrwxrwx  1 root root   26 Oct  6 12:06 2.6.18-1.2741.fc6xen-i686 ->
2.6.18-1.2741.fc6-xen-i686

# uname -a
Linux dnssigner.xelerance.com 2.6.18-1.2741.fc6xen #1 SMP Wed Oct 4 21:01:55 EDT 2006 i686
i686 i386 GNU/Linux

# rpm -ql kernel-headers |grep config.h

And trying to compile a module against this tree fails:

# export KERNELSRC=/lib/modules/2.6.18-1.2741fc6xen/build

[root@dnssigner openswan-2.4.7dr1]# make module

[...]

/usr/src/openswan-2.4.7dr1/modobj26/ipsec_init.c:23:26: error: linux/config.h: No such
file or directory

This worked with kernel 2.6.18-1.2726 (2.6.18-1.2726.fc6xen)

Though of course, yum deleted the old kernel (I would REALLY like it to keep the older
kernel) and
it is no longer at the development/ repos.

Paul

[itamar]

the same problem when compiling vmware on 2741 non-xen kernel.

--------------------

Itamar Reis Peixoto

e-mail: itamar(a)ispbrasil.com.br
msn: itamarjp(a)starmedia.com
skype: itamarjp
icq: 81053601
[phone]
[phone]

>  # ls -l /usr/src/kernels/
>  total 4
>  drwxr-xr-x 19 root root 4096 Oct  6 12:06 2.6.18-1.2741.fc6-xen-i686
>  lrwxrwxrwx  1 root root   26 Oct  6 12:06 2.6.18-1.2741.fc6xen-i686 -> 
>  2.6.18-1.2741.fc6-xen-i686
>
>  # uname -a
>  Linux dnssigner.xelerance.com 2.6.18-1.2741.fc6xen #1 SMP Wed Oct 4 
>  21:01:55 EDT 2006 i686 i686 i386 GNU/Linux
>
>  # rpm -ql kernel-headers |grep config.h
>
>  And trying to compile a module against this tree fails:
>
>  # export KERNELSRC=/lib/modules/2.6.18-1.2741fc6xen/build
>
>  [root@dnssigner openswan-2.4.7dr1]# make module
>
>  [...]
>
>  /usr/src/openswan-2.4.7dr1/modobj26/ipsec_init.c:23:26: error: 
>  linux/config.h: No such file or directory
>
>  This worked with kernel 2.6.18-1.2726 (2.6.18-1.2726.fc6xen)
>
>  Though of course, yum deleted the old kernel (I would REALLY like it to 
>  keep the older kernel) and
>  it is no longer at the development/ repos.
>
>  Paul
>
>

[Chris Lalancette]

Paul Wouters wrote:
>  # ls -l /usr/src/kernels/
>  total 4
>  drwxr-xr-x 19 root root 4096 Oct  6 12:06 2.6.18-1.2741.fc6-xen-i686
>  lrwxrwxrwx  1 root root   26 Oct  6 12:06 2.6.18-1.2741.fc6xen-i686 ->
> 2.6.18-1.2741.fc6-xen-i686
>  
>  # uname -a
>  Linux dnssigner.xelerance.com 2.6.18-1.2741.fc6xen #1 SMP Wed Oct 4 21:01:55 EDT 2006
> i686 i686 i386 GNU/Linux
>  
>  # rpm -ql kernel-headers |grep config.h
>  
>  And trying to compile a module against this tree fails:
>  
>  # export KERNELSRC=/lib/modules/2.6.18-1.2741fc6xen/build
>  
>  [root@dnssigner openswan-2.4.7dr1]# make module
>  
>  [...]
>  
>  /usr/src/openswan-2.4.7dr1/modobj26/ipsec_init.c:23:26: error: linux/config.h: No such
> file or directory
>  
>  This worked with kernel 2.6.18-1.2726 (2.6.18-1.2726.fc6xen)
>  
>  Though of course, yum deleted the old kernel (I would REALLY like it to keep the older
> kernel) and
>  it is no longer at the development/ repos.
>  
>  Paul
>  
>  --
>  Fedora-xen mailing list
>  Fedora-xen(a)redhat.com
>  https://www.redhat.com/mailman/listinfo/fedora-xen 
Two things:

1)  I believe include'ing linux/config.h was deprecated in 2.6.18, so the out-of-tree
packages are going to have to catch up.  That's just the danger of being out of tree. 
My guess is that it would be a relatively simple fix, but I can't say for certain.

2)  If you want yum to keep your old kernels, edit /etc/yum/pluginconf.d/installonlyn.conf
and either set "enabled" to 0 (which means it never deletes old packages), or
set "tokeep" to a larger number.  I usually set tokeep to around 9 or so, which
ensures that I have plenty of time to go back to an older packages.

Chris Lalancette

[Paul Wouters]

On Fri, 6 Oct 2006, Chris Lalancette wrote:

>  Two things:
>
>  1)  I believe include'ing linux/config.h was deprecated in 2.6.18, so the out-of-tree
> packages are going to have to catch up.  That's just the danger of being out of tree. 
> My guess is that it would be a relatively simple fix, but I can't say for certain.
Ok. a quick replae of linux/config.h for linux/autoconf.h worked and fixed the problem.
Now, to do this properly without adding ugly large #ifdef's to a bunch of
files.......
Why didn't they put the logic in config.h itself :(

>  2)  If you want yum to keep your old kernels, edit
> /etc/yum/pluginconf.d/installonlyn.conf and either set "enabled" to 0 (which
> means it never deletes old packages), or set "tokeep" to a larger number.  I
> usually set tokeep to around 9 or so, which ensures that I have plenty of time to go back
> to an older packages. 
It used to install kernels, not update them. So you had a fallback. I think that is
pretty
important, so sysadmins can fall back on their older kernel if the new one does not boot.
It should be the default. I'll do another xenguest install and then an upgrade and
confirm
this is really what happened before opening a bugzilla on this.

Paul
-- 
Building and integrating Virtual Private Networks with Openswan:
http://www.amazon.com/gp/product/1904811256/104-3099591-2946327?n=283155

[Paul Wouters]

On Fri, 6 Oct 2006, Paul Wouters wrote:

>  Ok. a quick replae of linux/config.h for linux/autoconf.h worked and
> fixed the problem.
>  Now, to do this properly without adding ugly large #ifdef's to a bunch of
> files.......
>  Why didn't they put the logic in config.h itself :( 
Oh. autconf.h gets included via macro's. so the logic that needs to be added isn't
too bad:

#ifndef AUTOCONF_INCLUDED
#include <linux/config.h>
#endif

And you don't need to manually include autoconf.h

Paul

[Dave Jones]

On Fri, Oct 06, 2006 at 11:14:53PM +0200, Paul Wouters wrote:
>  On Fri, 6 Oct 2006, Paul Wouters wrote:
>  
>  > Ok. a quick replae of linux/config.h for linux/autoconf.h worked and fixed the
> problem.
>  > Now, to do this properly without adding ugly large #ifdef's to a bunch of
> files.......
>  > Why didn't they put the logic in config.h itself :(
>  
>  Oh. autconf.h gets included via macro's. so the logic that needs to be added
> isn't too bad:
>  
>  #ifndef AUTOCONF_INCLUDED
>  #include <linux/config.h>
>  #endif
>  
>  And you don't need to manually include autoconf.h 
You don't need to do those three lines at all if you're using kernels
from at least the last year and half or so.

	Dave

-- 
http://www.codemonkey.org.uk

[Paul Wouters]

On Fri, 6 Oct 2006, Dave Jones wrote:

>   > Oh. autconf.h gets included via macro's. so the logic that
> needs to be added isn't too bad:
>   >
>   > #ifndef AUTOCONF_INCLUDED
>   > #include <linux/config.h>
>   > #endif
>   >
>   > And you don't need to manually include autoconf.h
>
>  You don't need to do those three lines at all if you're using kernels
>  from at least the last year and half or so. 
We need to support 2.4 and 2.6 kernels.

Paul