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Top Forums UNIX for Dummies Questions & Answers insmod: Invalid module format error Post 302595185 by rupeshkp728 on Friday 3rd of February 2012 02:33:59 AM
Old 02-03-2012
I have linux installed in vmware which is not connected to net and so I have to manually download the source.

---------- Post updated 02-03-12 at 01:03 PM ---------- Previous update was 02-02-12 at 08:56 PM ----------

Now I have open suse kernel kernel 3.1.0-1.2-desktop and its kernel source.

Again the module gets built.
While loading a kernel module I am getting Invalid module format error with description "first_driver: no symbol version for module_layout"

The following are the logs:
Code:
linux-k2kj:/home/rkpsuse/Emertxe/CourseTemplates/FirstDriver # insmod first_driver.ko 
insmod: error inserting 'first_driver.ko': -1 Invalid module format

linux-k2kj:/home/rkpsuse/Emertxe/CourseTemplates/FirstDriver # modinfo first_driver.ko 
filename:       first_driver.ko
description:    My First Driver
author:         Emertxe Info. Tech
license:        GPL
srcversion:     C4CCFC5DA59927FA4A479E6
depends:        
vermagic:       3.1.0-1.2-desktop SMP preempt mod_unload modversions 686 

linux-k2kj:/home/rkpsuse/Emertxe/CourseTemplates/FirstDriver # dmesg | tail
[ 8797.391736] first_driver: no symbol version for module_layout

linux-k2kj:/home/rkpsuse/Emertxe/CourseTemplates/FirstDriver # uname -r
3.1.0-1.2-desktop

FYI I have compiled the kernel as follows:
Make mrprpoper
make menuconfig
Make
Make modules
Make modules_install
Make install

Am I missing something?
How to resolve this issue?
 

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simple_lock_terminate(9r)												 simple_lock_terminate(9r)

NAME
simple_lock_terminate - General: Terminates, using a simple lock SYNOPSIS
#include <kern/lock.h> void simple_lock_terminate( simple_lock_t slock_ptr ); ARGUMENTS
Specifies a pointer to a simple lock structure. You can declare this simple lock structure by using the decl_simple_lock_data routine. DESCRIPTION
The simple_lock_terminate routine determines that the kernel module is done using the simple lock permanently. The kernel module must free the simple lock (that is, the kernel module does not hold the lock) before calling simple_lock_terminate. The kernel module must not refer- ence the specified simple lock after calling simple_lock_terminate. NOTES
You must call simple_lock_init (once only) prior to calling simple_lock_terminate to initialize the simple lock structure for the resource. A resource, from the kernel module's standpoint, is data that more than one kernel thread can manipulate. You can store the resource in global variables and in data structure members. RETURN VALUES
None FILES
SEE ALSO
Routines: decl_simple_lock_data(9r), simple_lock_init(9r), simple_lock_try(9r), simple_unlock(9r) Data Structures: slock(9s) simple_lock_terminate(9r)
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