Messages in this thread | | | Subject | Re: [PATCH] x86,mm: print likely CPU at segfault time | From | Rik van Riel <> | Date | Mon, 19 Jul 2021 15:34:38 -0400 |
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On Mon, 2021-07-19 at 12:20 -0700, Dave Hansen wrote:
> If it's as trivial as: > > printk(KERN_CONT " on cpu/core %d/%d", > raw_smp_processor_id(), > topology_core_id(raw_smp_processor_id())); > > it would be handy. But, it's also not hard to look at 10 segfaults, > see > that they happened only on 2 CPUs and realize that hyperthreading is > enabled.
One problem with topology_core_id() is that that, on a multi-socket system, the core number may not be unique.
That is why I ended up going with just the CPU number. It's pretty easy to put one and one together afterwards.
Thanks for your quick patch review.
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