RE: [PATCH 2/2] x86/MCE: Add command line option to extend MCE Records pool

Luck, Tony
2024-02-12T18:58:45Z

> I need to look more at the genpool code, but I thought I'd ask too.

Yazen,

gen_pool_add_owner() is the code that adds an extra chunk to an existing genpool.

This bit doesn't look obviously safe against a #MC at the wrong moment in the middle of
the list_add_rcu()

spin_lock(&pool->lock);
list_add_rcu(&chunk->next_chunk, &pool->chunks);
spin_unlock(&pool->lock);

-Tony