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SubjectRe: drbd 8.0.2/3 doesn't load under kernel 2.6.21
I'm making an assumption that depmod is somehow to blame and have 
logged this as a kernel bug,
http://bugzilla.kernel.org/show_bug.cgi?id=8829

>
>>It turns out I was adding the web100 patch (http://www.web100.org) to
>>the 2.6.21 kernel and that's what causes the symbol resolving problem
>>below. Adding the corresponding version of the web100 patch to the
>>2.6.20 kernel makes this problem appear there as well. On fresh
>>versions of the kernel, this problem does not occur. At the moment,
>>it's not possible to have a current kernel that contains both drbd
>>and web100.
>>
>>>On a 64-bit Gentoo system with Gentoo's 2.6.21 kernel, drbd 8.0.2/3
>>>complains when I try to load the module:
>>>
>>>[ 134.141363] drbd: Unknown symbol cn_fini
>>>[ 134.141399] drbd: Unknown symbol cn_init
>>>
>>>It works fine when I compile it and load in the previous kernel
>>>version, 2.6.20 and the symbols are present in the map file
>>>
>>>./System.map-genkernel-x86_64-2.6.21-gentoo-r2:ffffffff802935aa t cn_fini
>>>./System.map-genkernel-x86_64-2.6.21-gentoo-r2:ffffffff8029362a t cn_init
>>>
>>>I am c'cing the kernel mailing list because this appears to be a
>>>problem with how any module accesses symbols in the kernel, not just
>> >drbd. Source was compiled with Gentoo gcc-4.1.2, glibc-2.5-r3

--

Maurice Volaski, mvolaski@aecom.yu.edu
Computing Support, Rose F. Kennedy Center
Albert Einstein College of Medicine of Yeshiva University
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