On 11/18/22 11:01 AM, Namhyung Kim wrote:
It caused some troubles when a lock inside kmalloc is contended because task local storage would allocate memory using kmalloc. It'd create a recusion and even crash in my system. There could be a couple of workarounds but I think the simplest one is to use a pre-allocated hash map.
Acked-by: Martin KaFai Lau <martin.lau@xxxxxxxxxx>
We could fix the task local storage to use the safe BPF allocator, but it takes time so let's change this until it happens actually.
I also got another report on the kfree_rcu path. I am also looking into this direction on using the BPF allocator.
