[PATCH v2 0/5] kallsyms: Emit symbol for holes in text and fix weak function issue

[Zheng Yejian]

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@huaweicloud.com/
>>   
>>
>>
> 
> 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@gandalf.local.home/
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