linux-kernel - Re: lock-up with module: Optimize __module

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Message-ID: <20150706081210.GS18673@twins.programming.kicks-ass.net>
Date:	Mon, 6 Jul 2015 10:12:10 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Arthur Marsh <arthur.marsh@...ernode.on.net>
Cc:	linux-kernel@...r.kernel.org,
	Rusty Russell <rusty@...tcorp.com.au>,
	Steven Rostedt <rostedt@...dmis.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Oleg Nesterov <oleg@...hat.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: Re: lock-up with module: Optimize __module_address() using a latched
 RB-tree

On Mon, Jul 06, 2015 at 09:19:11AM +0200, Peter Zijlstra wrote:
> On Mon, Jul 06, 2015 at 04:03:45AM +0930, Arthur Marsh wrote:
> > I am happy to supply further details and run further tests.
> 
> A .config and gcc version might be a good start. I'll see if 32bit
> userspace in KVM can reproduce.

If you can, can you also provide your bzImage and initrd, that would get
me closer to your setup. Feel free to provide those offlist if that's
better for you.

For the kernel that goes *Boom* obviously ;-)
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