Re: deadlock caused by printk

[Peter Zijlstra]

On Fri, 2011-03-25 at 22:30 +0800, Ming Lei wrote:
> 
> But seems ftrace can't dump out the messages if system hangs,

True.

>  so could
> we introduce a smart and simple "printk" which can be used in any
> contexts? 

I think you could use early_printk() for that, it doesn't bother with
all the syslog muck.

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