Messages in this thread | | | Date | Wed, 26 Aug 2009 20:39:54 +0200 | From | Ingo Molnar <> | Subject | Re: [tip:core/rcu] rcu: Remove lockdep annotations from RCU's _notrace() API members |
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* Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:
> On Wed, Aug 26, 2009 at 10:49:38AM +0200, Ingo Molnar wrote: > > > > * tip-bot for Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote: > > > > > Commit-ID: 06e799764eb7c2e4640888d438c3524d756613e1 > > > Gitweb: http://git.kernel.org/tip/06e799764eb7c2e4640888d438c3524d756613e1 > > > Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com> > > > AuthorDate: Tue, 25 Aug 2009 18:53:37 -0700 > > > Committer: Ingo Molnar <mingo@elte.hu> > > > CommitDate: Wed, 26 Aug 2009 09:45:41 +0200 > > > > > > rcu: Remove lockdep annotations from RCU's _notrace() API members > > > > I'm afraid this does not solve the problem either - the attached > > config crashes too. Does it boot for you? It should boot fine on > > most 64-bit x86 systems. > > OK, got my hands on a 64-bit x86 system, building. When I did > "make oldconfig" on the attached config file, I ended up with the > following diffs. If there is some other command I should use, > please let me know. Otherwise, will let you know how this goes.
Have you tried it on tip/master + tip/core/rcu? make oldconfig works fine with that here.
But ... here's something you wont like: just to make sure i sent you the right config [i made mistakes there in the past] i picked a 64-bit system (a different one from the one that triggered the crash), built the config with latest tip/master (80c161b, using gcc 4.3.2) plus tip/core/rcu (06e7997) git-merged in:
git checkout -b tmp tip/master git merge tip/core/rcu
and booted it - and that did not produce any lockups. So you might not be able to reproduce it :-/ I've re-merged core/rcu into tip/master, maybe my tests can find another config that reproduces the crash better. Please disregard this bugreport until i've found that one.
Ingo
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