mvneta: oops in __rcu_read_lock on mirabox

Thomas Petazzoni thomas.petazzoni at free-electrons.com
Wed Sep 18 12:35:49 EDT 2013


Dear Ethan Tuttle,

On Tue, 17 Sep 2013 23:30:56 -0700, Ethan Tuttle wrote:
> On Mon, Sep 16, 2013 at 11:01 PM, Willy Tarreau <w at 1wt.eu> wrote:
> > Next step should be that you test both kernels to be sure.
> 
> Thanks for the kernel images, Willy.  I'm still experimenting but
> initial results are strange: I haven't seen a crash from the -ethan
> image you provided, nor by a kernel with that config that I built
> myself.  The config is only different from my crashing config by a few
> options.  So perhaps some combination of options prevents the crash.
> I'll see if I can narrow it down.

A toolchain generating some crappy code maybe? Ethan, Willy, comparing
your toolchain (compiler version, origin of the toolchain) could be
interesting.

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com



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