[Ksummit-discuss] Self nomination

Dave Jones davej at codemonkey.org.uk
Fri Jul 31 18:17:58 UTC 2015


On Fri, Jul 31, 2015 at 11:12:45AM -0700, Greg Kroah-Hartman wrote:
 > On Fri, Jul 31, 2015 at 12:51:53PM -0500, Bjorn Helgaas wrote:
 > > I prefer that a dmesg collected in the simplest possible way, with no
 > > special config or boot flags, be as useful as possible.  So converting
 > > to dynamic debug requires much more thought about which messages
 > > should be always printed and which should become dynamic.
 > 
 > Why would a debugging message ever not be dynamic?  They are there for
 > you to use, and turn off when you are done.  If you want a user to
 > report the output of them, then of course they should be dynamic so they
 > can just write a line to a debugfs file and then start seeing them

This implies a user knows ahead of time what bugs they are going to hit,
and which messages they need to enable.  For hard-to-reproduce bugs,
or bugs that exhibit non-obvious symptoms, this isn't workable.

	Dave



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