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SubjectRe: unwind_init() takes 100 ms
On Mon, Oct 08, 2018 at 12:34:17PM -0500, Josh Poimboeuf wrote:
> > 4. Would a command line parameter be reasonable `disable_unwind`, so people
> > could decrease their boot time with distribution kernels, and easily turn it
> > back on, when they need a stacktrace without having to rebuild the Linux
> > kernel?
>
> I think a boot cmdline option to disable ORC would be ok. However,
> disabling ORC would need to fall back to the "guess" unwinder.
> Otherwise it would make debugging impossible. That shouldn't be too
> hard, but it would require restructuring the code a bit.

But I should also clarify that this option wouldn't be worth it.
Sorting at build time is the way to go.

--
Josh

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