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

[Maurice Volaski]

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