Re: frequent lockups in 3.18rc4

[DÃniel Fraga]

On Tue, 2 Dec 2014 16:40:37 +0800
Lai Jiangshan <laijs@xxxxxxxxxxxxxx> wrote:

> It is needed at lest for testing.
> 
> CONFIG_TREE_PREEMPT_RCU=y with CONFIG_PREEMPT=n is needed for testing too.
> 
> Please enable them (or enable them under CONFIG_RCU_TRACE=y)

	Lai, sorry but I didn't understand. Do you mean both of them
enabled? Because how can CONFIG_TREE_PREEMPT_RCU be enabled without
CONFIG_PREEMPT ?

	If you mean both enabled, I already reported a call trace with
both enabled:

https://bugzilla.kernel.org/show_bug.cgi?id=85941

	Please see my previous answer to Linus and Paul too.

	Regarding CONFIG_RCU_TRACE, do you mean
"CONFIG_TREE_RCU_TRACE"? I couldn't find CONFIG_RCU_TRACE.

	Thanks.

-- 
Linux 3.17.0-dirty: Shuffling Zombie Juror
http://www.youtube.com/DanielFragaBR
http://exchangewar.info
Bitcoin: 12H6661yoLDUZaYPdah6urZS5WiXwTAUgL
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/