Re: [PATCH] bpf: use kvzmalloc to allocate BPF verifier environment
From: patchwork-bot+netdevbpf
Date: Wed Oct 09 2024 - 21:20:47 EST
Hello:
This patch was applied to bpf/bpf.git (master)
by Alexei Starovoitov <ast@xxxxxxxxxx>:
On Tue, 8 Oct 2024 17:07:35 -0400 you wrote:
> The kzmalloc call in bpf_check can fail when memory is very fragmented,
> which in turn can lead to an OOM kill.
>
> Use kvzmalloc to fall back to vmalloc when memory is too fragmented to
> allocate an order 3 sized bpf verifier environment.
>
> Admittedly this is not a very common case, and only happens on systems
> where memory has already been squeezed close to the limit, but this does
> not seem like much of a hot path, and it's a simple enough fix.
>
> [...]
Here is the summary with links:
- bpf: use kvzmalloc to allocate BPF verifier environment
https://git.kernel.org/bpf/bpf/c/434247637c66
You are awesome, thank you!
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