Re: [PATCH] kmsg_dump: Don't run on non-error paths by default

From: Matthew Garrett
Date: Wed Feb 08 2012 - 11:37:24 EST


On Wed, Feb 08, 2012 at 11:30:07AM -0500, Vivek Goyal wrote:

> > + if (reason > KMSG_DUMP_PANIC && !always_kmsg_dump)
> > + return;
>
> Did you mean reason > KMSG_DUMP_OOPS to enable oops logging by default?

Bah. Yes, I think my test system was set to panic on oops so I didn't
catch that.

> Given the fact that not everybody likes kmsg_dump() and it is not known
> how stable it with various backends, will it make sense to keep it disabled
> by default and provide a knob to enable it (instead of always_kmsg_dump).

I think logging panics and oopses by default is a useful feature. It may
be desirable to have a mechanism to disable it if some other way of
handling that (serial console, kdump) is available.

--
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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