On Thu, Mar 18 2021 at 08:58, Vitaly Kuznetsov wrote:
> Thomas Gleixner <[email protected]> writes:
>> There is a way more useful way to handle this. In such a case the bit is
>> NOT set in the alloc map. So:
>>
>> if (!WARN_ON_ONCE(test_and_clear_bit(bit, cm->alloc_map)))
>> return;
>>
>> would have caught the problem at hand nicely and let the machine survive
>> while just throwing warns and continuing is broken to begin with.
>
> Thanks, I like the idea. I didn't do that probably because the problem
> which triggered me to write these patches wasn't fatal, it was just
> causing CPU0 offlining to fail.
Can you whip up a patch for that?
Thanks,
tglx
