Messages in this thread | | | Date | Wed, 10 Nov 2010 23:21:57 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH 03/20] x86, mce: Add persistent MCE event |
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* Ben Gamari <bgamari@gmail.com> wrote:
> On Thu, 4 Nov 2010 16:36:39 +0100, Borislav Petkov <bp@amd64.org> wrote: > > From: Borislav Petkov <borislav.petkov@amd.com> > > > > Add the necessary glue to enable the mce_record tracepoint on boot > > turning it into a persistent event. This exports the MCE buffer > > read-only to a userspace daemon which will hook into it through debugfs > > when booting is finished. > > While MCE technically is a diagnostics service, do we want to start adding > dependencies on debugfs in long-running, common-place daemons? I was under the > impression we were to avoid using debugfs for anything other than values for > one-off debugging.
See this current discussion thread on lkml:
[RFC][PATCH] perf: sysfs type id
Events are being added to sysfs as we want to avoid the debugfs dependency.
Thanks,
Ingo
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