Messages in this thread |  | | Date | Tue, 17 Feb 2015 14:01:18 +0100 (CET) | From | Jiri Kosina <> | Subject | Re: scsi: Implement per-cpu logging buffer |
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On Fri, 13 Feb 2015, Hannes Reinecke wrote:
> Thing is, if we were to use per-CPU buffers for printk() out of > necessity we have to queue these buffers for writing out. So there is a > time window during which the message already is in the per-CPU buffer > but still not printed out as printk() is currently writing out one of > the other per-CPU buffers.
Please also take a look at per-CPU printk() function redirection mechanism that got added because of printk()-from-NMI madness ('printk_func' pointer). It might be useful for your purposes as well.
-- Jiri Kosina SUSE Labs
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