Re: [PATCH v2] mm/vma: keep the unlinked VMA off the file across unmap on mmap hook failure

From: Ihor Solodrai

Date: Fri Oct 09 2026 - 12:42:08 EST


On 2026-10-09 4:31 a.m., Lorenzo Stoakes (ARM) wrote:
-cc slopper

On Thu, Oct 08, 2026 at 02:48:07PM -0700, Ihor Solodrai wrote:
BPF CI caught this bug on linux-next as well:
https://github.com/kernel-patches/bpf/actions/runs/37736351874

Nice that it caught it!

Is there a way to automatically notify patch author that when it happens? Does
it bisect, etc. or just green/red?

For linux-next it's just green/red now.

We've added it to have an "upstream merge will break bpf" signal,
because it happened regularly.

For bpf list we run on every incoming patch, so regressions are detected
quickly. Not feasible to do that for *every* upstream patch, we'd need
much more compute.

An auto-bisection is something I thought about, but never got to it.
These days with LLMs this may be easier to set up though.


--
Cheers, Lorenzo