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

[Maurice Volaski <mvolaski@xxxxxxxxxxxx>]

Just wondering if you had a chance to check out what's going on.

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

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