Thread (20 messages) flat view 20 messages, 4 authors, 2013-07-17

BUG: commit "ARM: Remove __ARCH_WANT_INTERRUPTS_ON_CTXSW on pre-ARMv6 CPUs" breaks armv5 with CONFIG_PREEMPT

From: mkl@pengutronix.de (Marc Kleine-Budde)
Date: 2013-07-17 11:48:45

On 07/17/2013 10:51 AM, Russell King - ARM Linux wrote:
On Wed, Jul 17, 2013 at 10:41:19AM +0200, Marc Kleine-Budde wrote:
quoted
What happend to that patch? I cannot find it in v3.10.x nor in linus/master.
Catalin sent it to me, and I didn't apply it because it's still racy.

We have stateful context switches (due to cache clearing) and this does
nothing to solve the problem there.  If we get preempted during the
cache clearing, things will still go wrong.
Thanks for the update.
See:

http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=7771/1

I've no idea what's happening about this.  It looks to me like nothing
happened after Catalin's last comment there.
Catalin, what's next?

Marc

-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |

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