Re: [PATCH v3 0/2] arm64: livepatch: Enable livepatch without sframe

Mark Rutland <[email protected]> Mon, 19 May 2025 17:40:33 +0100
Newsgroups org.kernel.vger.linux-toolchains,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-kernel,org.kernel.vger.live-patching
Message-ID <aCtfAcg32kbczs-g@J2N7QTR9R3>
On Fri, May 16, 2025 at 09:53:36AM -0700, Song Liu wrote:
> ARM folks, please share your thoughts on this work. To fully support
> livepatching of kernel modules, we also need [1]. We hope we can
> land this in the 6.16 kernel.
> 
> Thanks,
> Song
> 
> [1] https://lore.kernel.org/linux-arm-kernel/[email protected]/

I've had a quick look at [1], and IIUC that's a hard prerequisite for
livepatching, as without it the kernel *will* crash if it attempts a
late module relocation.

Given that, I don't think that we can take patch 2 until Will's comments
on [1] have been addressed, but I think that we could take patch 1 (with
fixups) as per my other reply.

Mark.