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Bug#419943: marked as done (linux-2.6: CONFIG_PARAVIRT breaks some external modules)



Your message dated Sat, 28 Jul 2007 11:51:57 +0100
with message-id <[🔎] 1185619918.6974.47.camel@xerces>
and subject line paravirt_ops symbol is no longer GPL-only
has caused the attached Bug report to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what I am
talking about this indicates a serious mail system misconfiguration
somewhere.  Please contact me immediately.)

Debian bug tracking system administrator
(administrator, Debian Bugs database)

--- Begin Message ---
Package: linux-2.6
Version: 2.6.20-2
Severity: important

The 2.6.20 kernels in unstable for 686 and k7 have CONFIG_PARAVIRT enabled.
This apparently redefines various operations widely used by kernel modules
(or included via inlined functions) to redirect through a paravirts_ops
table, but the paravirts_ops table is marked GPL-only.  This produces
errors like:

FATAL: modpost: GPL-incompatible module nvidia.ko uses GPL-only 
    symbol 'paravirt_ops'

I've seen this problem with both nvidia (non-free) and openafs (free, but
under a non-GPL license -- its code predates the existence of Linux).  Note
that these modules are not intentionally using anything related to paravirt
themselves; it looks like the paravirt.h header file is selectively
overriding functions that are pulled into the modules and which those
modules were previously using without problems.

This problem does not occur on AMD64.

According to:

http://www.mail-archive.com/git-commits-head@vger.kernel.org/msg03856.html

this was done because the code is experimental and in flux and the API
will change.  Given that and its effect on out-of-tree modules, could
you disable this option for the time being until the interfaces stabilize?

Thanks!

-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 2.6.18-4-686 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash


--- End Message ---
--- Begin Message ---
Version: 2.6.22-2

paravirt_ops is no longer GPL-only in 2.6.22.

-- 
Sam Morris
http://robots.org.uk/

PGP key id 1024D/5EA01078
3412 EA18 1277 354B 991B  C869 B219 7FDB 5EA0 1078

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