On Sun, Nov 30, 2014 at 11:02:43PM -0200, Dâniel Fraga wrote:
> On Sun, 30 Nov 2014 16:21:19 -0800
> Linus Torvalds <torva...@linux-foundation.org> wrote:
>
> > Maybe you'll have to turn off RCU_CPU_STALL_VERBOSE first.
> >
> > Although I think you should be able to just edit the .config file,
> > delete the like that says
> >
> > CONFIG_TREE_PREEMPT_RCU=y
> >
> > and then just do a "make oldconfig", and then verify that
> > TREE_PREEMPT_RCU hasn't been re-enabled by some dependency. But it
> > shouldn't have, and that "make oldconfig" should get rid of anything
> > that depends on TREE_PREEMPT_RCU.
>
> Ok, I did exactly that, but CONFIG_TREE_PREEMPT_RCU is
> re-enabled. I talked with Pranith Kumar and he suggested I could just
> disable preemption (No Forced Preemption (Server)) and that's the only
> way to disable CONFIG_TREE_PREEMPT_RCU.
If it would help to have !CONFIG_TREE_PREEMPT_RCU with CONFIG_PREEMPT=y,
please let me know and I will create a patch that forces this.
(Not mainline material, but if it helps with debug...)
Thanx, Paul
> Now I'll try to make the system freeze, then I'll send
> you the Call trace.
>
> Thanks.
>
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