Re: [PATCH v4] coredump: Add /proc/<pid>/coredump_pre_exit for pre-exit before dumping

[Xin Zhao]

On Thu, 25 Jun 2026 13:48:10 +0100 Lorenzo Stoakes <ljs@xxxxxxxxxx> wrote:

> +cc missing maintainers, lists.
> 
> NAK.
> 
> This is un-upstreamable for numerous reasons.
> 
> The stuff you're doing in mm is broken, wrong and invasive and you've not
> even bothered to cc- mm people. I'm annoyed by this.
> 
> You're also doing incredibly silly mistakes at v4 of something that should have
> been an RFC.
> 
> You don't seem to understand the concept of patch _series_ (break it up into
> smaller patches!!!) and you haven't bothered cc'ing maintainers whose subsystems
> you're radically alterting.
> 
> I'm annoyed as you have a history where you were told not to add insane hacks
> before ([0], my reply at [1]).
> 
> [0]:https://lore.kernel.org/all/20260116042817.3790405-1-jackzxcui1989@xxxxxxx/
> [1]:https://lore.kernel.org/all/14110b70-19e7-474d-b0dd-ba80e8bed9b0@lucifer.local/
> 
> Was I wasting my time there? Am I wasting my time responding now?
> 
> And how hard is it to run a simple perl script?
> 
> Let me run it for you for _just_ the maintainers:

I probably shouldn't reply to this email to waste more of your time, but I
can't help but respond because your comments have been very beneficial to
me, and I enjoy the process.

The v4 version has changed too much compared to the v3 version. I should
have re-executed the "get maintainer" script, but I mistakenly copied the
previous email list and sent it out. I sincerely apologize for that.

There are quite a few issues now, and I haven't come up with a good
overall solution. I actually want to resolve the problems we encountered
in our project with minimal kernel modifications, but I can't think of a
good way to do it. It seems that the v4 version has turned out to be a
complete disaster of a patch, and I sincerely hope that my example won't
be used as a counterexample in the future. Thank you for that.

Suddenly, I have some thoughts about this issue, but I even question
whether I should have these ideas. Let me sit down and sort things out
properly. I hope the v5 version won't be a disaster.

Thanks
Xin Zhao