Messages in this thread | | | Date | Fri, 29 Jun 2012 14:58:45 +0200 | From | Ingo Molnar <> | Subject | Re: cosmetic printk() issue with lockdep warning in arch/x86/kernel/alternative.c |
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* Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:
> On Wed, 2012-06-27 at 12:49 +0200, Kay Sievers wrote: > > All we want is a reliable printk > > We too, but we define reliable differently. I want printk() to > dump data ASAP so that it has better chance to get out of the > system and onto my console in case of a crash. I don't give a > rats arse about interleaved text, any text is better than no > text.
I actually *fixed* bugs in the past when I saw interleaved text printed from multiple CPUs, it told me how narrow and SMP dependent a particular race/crash was.
So even interleaving, although annoying most of the time, can be useful in some other places.
Thanks,
Ingo
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