On 2024/12/11 04:49, Martin Kelly wrote:
On Tue, 2024-12-10 at 21:01 +0100, Christophe Leroy wrote:
Hi all, what is the status of this patch series? I'd really like to
see
it or some other fix to this issue merged. The underlying bug is a
significant one that can cause ftrace/livepatch/BPF fentry to fail
silently. I've noticed this bug in another context[1] and realized
they're the same issue.
I'm happy to help with this patch series to address any issues as
needed.
As far as I can see there are problems on build with patch 1, see
https://patchwork.kernel.org/project/linux-modules/patch/20240723063258.2240610-2-zhengyejian@xxxxxxxxxxxxxxx/
Yeah, I see those. Additionally, this patch no longer applies cleanly
to current master, though fixing it up to do so is pretty easy. Having
done that, this series appears to resolve the issues I saw in the other
linked thread.
Zheng, do you plan to send a v3? I'd be happy to help out with this
patch series if you'd like, as I'm hoping to get this issue resolved
(though I am not an ftrace expert).
Sorry to rely so late. Thanks for your feedback!
Steve recently started a discussion of the issue in:
https://lore.kernel.org/all/20241014210841.5a4764de@xxxxxxxxxxxxxxxxxx/
but there's no conclusion.
I can rebase this patch series and send a new version first, and
I'm also hoping to get more feedbacks and help to resolve the issue.
--
Thanks,
Zheng Yejian
