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robthebob
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Joined: 23 Jan 2006
Posts: 16

PostPosted: Fri Mar 02, 2007 2:26 pm    Post subject: Unable to insert bridge kernel module Reply with quote

Hi,

I'm trying to setup openvpn with bridging (I need IPX to work over the connection). I changed bridge to be built as a module (this is the only change I made to the kernel), and then ran make modules_install. When I try "modprobe bridge", I get the following error:

FATAL: Error inserting bridge (/lib/modules/2.6.17-gentoo-r8/kernel/net/bridge/bridge.ko): Unknown symbol in module, or unknown parameter (see dmesg)

And in dmesg:

bridge: Unknown symbol br_handle_frame_hook
bridge: Unknown symbol br_fdb_put_hook
bridge: Unknown symbol br_fdb_get_hook

I have not rebooted or installed the "new" kernel (although surely it is the same as I only compiled an extra module) because previously I have been able to avoid it by compiling as a module. Is this not always the case. I have not done so because this machine is in use as a router at the moment and I am not the only one depending on it.

Thanks for any help,

Robin
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bugg_tb
Apprentice
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Joined: 19 Nov 2004
Posts: 282
Location: Leeds, UK

PostPosted: Fri Mar 02, 2007 2:34 pm    Post subject: Reply with quote

Adding single modules to the kernel does not always require a reboot but if your adding a new function it has been known to require a new bzImage as it may need to reference other items in the TCP/IP stack(in this case).

HTH

Tom
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dnikola
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Joined: 27 Mar 2007
Posts: 30

PostPosted: Tue Aug 14, 2007 9:50 pm    Post subject: Reply with quote

I have also same problems for two days.

Those are the error messages:

When I try to start bridge:

Quote:
/etc/init.d/net.br0 start
* Starting br0
* Creating bridge br0 ...
* Bridging (802.1d) support is not present in this kernel [ !! ]
* Adding ports to br0
* eth1 ...
bridge br0 does not exist!



When I try to load module:

Quote:
FATAL: Error inserting bridge (/lib/modules/2.6.21-gentoo-r4/kernel/net/bridge/bridge.ko): Unknown symbol in module, or unknown parameter (see dmesg)


dmesg says:

Quote:
bridge: Unknown symbol br_handle_frame_hook
bridge: Unknown symbol br_fdb_put_hook
bridge: Unknown symbol br_fdb_get_hook
bridge: Unknown symbol br_handle_frame_hook
bridge: Unknown symbol br_fdb_put_hook
bridge: Unknown symbol br_fdb_get_hook


Kernel is OK. I load bridge as module. Also I try as yes. In my /usr/src/linux/.config brige option is ok.

Something is interesting:
When I
Quote:
modprobe brigde
I got this with
Quote:
lsmod
:

Quote:
Module Size Used:
llc 9364 0


Any idea?

I done everything by the book.
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