Help learning from my mistakes

[Valdis.Kletnieks at vt.edu]

On Sat, 04 Apr 2015 19:00:42 -0400, Nicholas Krause said:
>  are now slower by up to 3 times,

So what debugging did you already do to try to narrow this down?

Did you even run 'top' or 'vmstat' or anything else like that?
Did you check to make sure you didn't replace a stripped down
custom config with a 'make allmodconfig'?  Did you compare the current
.config with the previous one to make sure enabling lock debugging
was the only change?  Did you reboot back into a known-good kernel
and test build a known-good kernel tree with a known-good .config (if
that was still slow, I'd start checking the system hardware to make sure
you haven't lost a 4G memory DIMM or other similar issue).

(Replying mostly for the archives, and the edification of others)
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