Re: Hardware Error Kernel Mini-Summit

[Ingo Molnar <mingo@elte.hu>]

* Mauro Carvalho Chehab <mchehab@redhat.com> wrote:

> Ingo Molnar wrote:
>
> > Regarding dmesg, there's a WIP patch on lkml that 
> > integrates printks into this framework as well - makes 
> > each printk also available as a special string event.
> > 
> > That way a tool can have both programmatic access to 
> > printk output (without having to interact with the 
> > syslog buffer itself) - together with all the other 
> > structured log sources, while humans can also see what 
> > is happening.
> 
> Some system admins prefer to have everything on dmesg, 
> as they can enable a serial console, and catch the logs 
> remotely, even when the machine crashes for example due 
> to a hardware failure.
> 
> So, IMHO, one feature that the perf event needs is the 
> capability to report errors via a serial console also, 
> or a mechanism where some events are sent via dmesg.

Yeah. That can be an aspect of the callback - or might 
even be integrated into the core code.

Thanks,

	Ingo