On Fri, Jun 10, 2016 at 1:42 PM, Arnd Bergmann <arnd@xxxxxxxx> wrote:
>
> What I see is that this one exported symbol has a __crc of a different
> type from all the others:
>
> $ nm net/ceph/mon_client.o | grep __crc
> 48c2e16e A __crc_ceph_monc_get_version
> 2360d633 A __crc_ceph_monc_get_version_async
> 0c50a10a A __crc_ceph_monc_got_map
> w __crc_ceph_monc_do_statfs
A lower-case 'w' in a symbol list just means that it's a local weak
symbol (with a upper-case 'A' meaning it's an absolute global).
Afaik, that simply means that it never got resolved, and genksyms
never generated that absolute value for it.
As to _why_ that happens, that's more than I can guess. We've had
problems with genksyms before, and it tends to be hard to debug.
Is it 100% reliable for you? Because the most common problem has been
issues with subtle build races, where just causing a re-build will fix
it.
Your config doesn't work for me, when I do
cp ~/genksyms-config.txt .config
make ARCH=i386 oldconfig
I get something else than what you had. I tried with both current -git
and the commit you pinpointed, so I don't know how you generated that
config file..
Linus
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