* Martin J. Bligh <[email protected]> wrote:
> >>Grrr. Humpf. I can't see the option being turned on for lockdep ...
> >>what was the config option, and is it enabled by default?
>
> In the -mm1 patch:
>
> config DEBUG_MUTEXES
> - bool "Mutex debugging, deadlock detection"
> - default n
> + bool "Mutex debugging, basic checks"
> + default y
>
> Please don't do thatas a default.
but ... i fixed the performance problem that caused the previous
DEBUG_MUTEXES scalability problems. (there's no global mutex list
anymore) We also default to e.g. DEBUG_SLAB which is alot more costly.
> It fucks up all the performance checking ;-(
i'm wondering, why doesnt your config have DEBUG_MUTEXES disabled? Then
'make oldconfig' would pick it up automatically.
Ingo
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