[Unionfs] RE: Unable to load aacraid when kernel is compiled with unionfs

[Ngo, Andrew]

Hi,
 
I am still having problem of loading certain kernel modules when unionfs
is compiled into the kernel.
 
My system is RHEL5.0, kernel is 2.6.18-8.el5.  When patched with unionfs
2.3.3 (source
:http://www.fsl.cs.sunysb.edu/pipermail/unionfs/attachments/20080611/12d
89889/unionfs-2.3.3_for_2.6.18.8.centos5.diff-0003.bin
<http://www.fsl.cs.sunysb.edu/pipermail/unionfs/attachments/20080611/12d
89889/unionfs-2.3.3_for_2.6.18.8.centos5.diff-0003.bin> ), certain
modules such as iscsi_initiator_mod, ics625, wrifx modules can not be
loaded into kernel.  
 
For example: when attempting loading the iscsi_initiator_mod with the
"modprobe iscsi_initiator_mod" command,  Error "FATAL: Error inserting
iscsi_initiator_mod
(/lib/modules/2.6.18-8.el5/kernel/drivers/scsi/iscsi_initiator_mod.ko):
Invalid module format" occurred.
 
The /var/log/messages added a new entry:"kernel: iscsi_initiator_mod
disagrees about version of symbol struct_mod"
 
When I compile the kernel without patching with the above unionfs patch,
all the modules can be successfully loaded into kernel.
 
Does the above unionfs patch really mean to be used by the kernel
2.6.18-8.el5 (RHEL5.0)? or is it designed to be used with  a slightly
different version of 2.6.18-8?  Please confirm.
 
Also, if anyone out there know how to resolve my kernel loading problem,
please advise.  Your help is greatly appreciated.  Thanks...
 
Andy Ngo
 
 

________________________________

From: Ngo, Andrew 
Sent: Thursday, June 12, 2008 10:53 PM
To: 'unionfs at mail.fsl.cs.sunysb.edu'
Cc: Ngo, Andrew; Johnson, Je
Subject: Unable to load aacraid when kernel is compiled with unionfs


Hi,
 
My sytem (RHEL5, kernel 2.6.18-8.el5) used to be able to install the
aacraid.ko module, but has failed to do so ever since I  compiled
unionfs (2.3.3) as module in the kernel.
 
The "modprobe aacraid" command generated error: "FATAL: Error inserting
aacraid (/lib/modules/2.6.18-8.el5/updates/aacraid.ko): Invalid module
format".
 
The /var/log/message generated error: "aacraid: disagree about version
of symbol struct_module"
 
Has anyone seen this before?  Any help/suggestion is greatly
appreciated.
 
Andy Ngo
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