[DRBD-user] 0.7.22 does not unload kernel module

[Todd Denniston]

Achim Stumpf wrote:
> Lars Ellenberg wrote:
>>
>> so if you get this to reproduce easily, let me know.
>> you may have hit a bug that shows up in your particular setup...
>>
>>   
> 
> Actually I have set that up on two servers. On both of them i got the 
> same issue with fedora core 5 and one of the original kernels.
> 
> Now I have taken the 2.6.18.6 Kernel of kernel.org. With that one it 
> works without any problems until now.
> 
> It is always a bit of a strange behaviour with those original 
> fedora/redhat kernels i experienced, but if you are interested in a 
> reproduction i can look next week if i find some time for that. But give 
> me some advice what you will need then of mine...
> 
> Thanks a lot,
> 
> Achim
> 

<self horn tooting>
take a look at the thread here:
http://lists.linbit.com/pipermail/drbd-user/2006-January/004339.html
http://lists.linbit.com/pipermail/drbd-user/2006-January/004346.html
http://lists.linbit.com/pipermail/drbd-user/2006-January/004351.html
http://lists.linbit.com/pipermail/drbd-user/2006-January/004357.html
</self horn tooting>

what I ended up doing was installing the source RPM (srpm) for the first 
version that failed, and the srpm for the last version before that, and 
compareing the diff between the trees.  I later found that it might have been 
quicker to look at {%_topdir}/SPECS/kernel-2.6.spec [Note you need to rename 
the first one installed before installing the second or they overwrite each 
other] and diff just the spec file and look at [for FC4] the lines that start 
with "Patch#:" if they are based on the same Linus kernel then this will tell 
you what changed between them and you can look at the individual patches for 
ideas as to it being the problem.  once you have a good idea which one is the 
problem you can just comment out the appropriate line in the spec [for the 
broken kernel] and build the kernel from that to test with.  If the problem 
goes away with the change then you know what Lars and Philipp should look at 
to decide if it is a drbd or Fedora problem.


good hunting.
-- 
Todd Denniston
Crane Division, Naval Surface Warfare Center (NSWC Crane)
Harnessing the Power of Technology for the Warfighter