Re: drbd 8.0.2/3 doesn't load under kernel 2.6.21

From: Maurice Volaski
Date: Tue Jun 12 2007 - 23:38:52 EST

It turns out I was adding the web100 patch ( 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

./ t cn_fini
./ 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@xxxxxxxxxxxx
Computing Support, Rose F. Kennedy Center
Albert Einstein College of Medicine of Yeshiva University
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