[Asterisk-Users] Newbie issue. Error in compiling source code for zaptel drivers

[Steven Critchfield]

On Fri, 2003-03-21 at 10:28, Frank Hoonhout wrote:
> Steven:
> 
> Here is the output from depmod -ae
> I do see errors.
> 
> [root at asterisk]# /sbin/depmod -ae
> depmod: *** Unresolved symbols in /lib/modules/2.4.18-27.8.0/misc/wcusb.o
> depmod:         usb_control_msg_Re80c4f9a
> depmod:         usb_submit_urb_R77d0e891
> depmod:         usb_set_configuration_R38118f0c
> depmod:         usb_set_interface_Rfe0b0cf8
> depmod:         usb_deregister_Rb5c0939b
> depmod:         usb_register_Ra6fe0a72
> depmod: *** Unresolved symbols in /lib/modules/2.4.18-27.8.0/misc/zaptel.o
> depmod:         __kfree_skb_R3810042c
> depmod:         create_proc_entry_Ra3afa0f7
> depmod:         register_chrdev_Ref89ab9e
> depmod:         add_wait_queue_R0cbf8a39
> depmod:         remove_wait_queue_Rb65338b9
> depmod:         remove_proc_entry_Rec1fb130
> depmod:         __pollwait_Ra26a5ce8
> depmod:         softnet_data_Rd1ee1ba1
> depmod:         skb_over_panic_R7ac7865f
> depmod:         proc_mkdir_R939a6693
> depmod:         alloc_skb_Rd2becd82
> depmod: *** Unresolved symbols in /lib/modules/2.4.18-27.8.0/misc/ztd-eth.o
> depmod:         __kfree_skb_R3810042c
> depmod:         dev_remove_pack_Rbe8a66d1
> depmod:         dev_queue_xmit_R8ac0fc82
> depmod:         dev_add_pack_R09ed4520
> depmod:         dev_get_by_name_R76e16b06
> depmod:         skb_under_panic_R432fccad
> depmod:         skb_over_panic_R7ac7865f
> depmod:         alloc_skb_Rd2becd82
> 
> But the the files are in /lib/modules/2.4.18-27.8.0/misc.  
> 
> [root at asterisk misc]# ls -l
> total 280
> -rw-r--r--    1 root     root        89788 Mar 20 18:32 tor2.o
> -rw-r--r--    1 root     root        19048 Mar 20 18:32 torisa.o
> -rw-r--r--    1 root     root        10828 Mar 20 18:32 wcfxo.o
> -rw-r--r--    1 root     root        19252 Mar 20 18:32 wcfxs.o
> -rw-r--r--    1 root     root        15620 Mar 20 18:32 wct1xxp.o
> -rw-r--r--    1 root     root        24752 Mar 20 18:32 wcusb.o
> -rw-r--r--    1 root     root        69324 Mar 20 18:32 zaptel.o
> -rw-r--r--    1 root     root         5808 Mar 20 18:32 ztd-eth.o
> -rw-r--r--    1 root     root        10920 Mar 20 18:32 ztdynamic.o
> 
> They match the files in /usr/src/zaptel.
> 
> I am not sure where to go from here.

Okay, time for a little kernel demystification. The unresolved symbols
do not mean it didn't find a file, it means it didn't find the function
that it needs. 

My next few comments are not RH bashing, just ignorance of where they
put files. 

If your kernel was installed properly, somewhere on your system you will
have a System.map-(kernel version) file. In this file is a list of the
symbols in the associated kernel. Take the part of the unresolved symbol
from above that doesn't look like line noise, and search for it in the
System.map file. If you find it and just the line noise looking sections
are different then you need to make sure you had the same modversions.h
file that your kernel was compiled with. This will make sure the line
noise section of your modules will match the with what is in the kernel.

Just a note to those compiling your own kernel, this is why module
versions can suck royally once you move the kernel off of the machine it
was compiled on. If you are compiling on the machine the kernel will run
on, then most problems go away.
-- 
Steven Critchfield  <critch at basesys.com>