Messages in this thread | | | Subject | Re: [PATCH] powerpc/irq: Run softirqs off the top of the irq stack | From | Benjamin Herrenschmidt <> | Date | Tue, 24 Sep 2013 06:51:07 +1000 |
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On Mon, 2013-09-23 at 09:47 -0700, Linus Torvalds wrote: > On Sun, Sep 22, 2013 at 9:35 PM, Benjamin Herrenschmidt > <benh@kernel.crashing.org> wrote: > > > > This is the "band aid" discussed so far for the stack overflow > > problem for powerpc. > > I don't think it's a "band-aid" in any way, except perhaps in the > sense that there are certainly other things we can also do in this > series (ie I liked Frederic's cleanups etc).
Ah yes, I thought of it as a band-aid in the sense that a better approach would be to switch to the irq stack earlier like x86_64 does but that would be a lot more invasive. Definitely something I would look into if I was to tackle changing how we do per-cpu and the PACA though.
Cheers, Ben.
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