Re: 3.10.5: rcu_sched detected stalls on CPUs/tasks

From: Jochen Striepe
Date: Wed Sep 11 2013 - 06:45:19 EST


Hello,

On Tue, Sep 10, 2013 at 10:54:53AM -0700, Paul E. McKenney wrote:
> Their stall was due to old-style creation of sysfs entries for memory.
> Yours might be having a similar issue with the creation of /dev entries,
> so it would be worth trying it.

OK, compiling 3.10.11 with your patch right now.

> One thing to try would be to insert delays into the code involved in
> creating the /dev entries. These delays will need to be busy-waits
> rather than sleeps.

Uh, I will have a look. But I'm no kernel developer. :)


Best greetings,
Jochen.
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