Re: Query: Y2038 patch series for 3.18 Kernel

[Pintu Kumar Agarwal]

On Tue, 4 Nov 2025 at 15:18, Arnd Bergmann <arnd at arndb.de> wrote:
>
> On Tue, Nov 4, 2025, at 06:02, Pintu Kumar Agarwal wrote:
> > On Mon, 3 Nov 2025 at 10:35, Siddh Raman Pant <sanganaka at siddh.me> wrote:
> >>
> >> Mon, 03 Nov 2025 09:57:18 +0530 को Pintu Kumar Agarwal ने लिखा :
> >> > We have an arm32 based embedded product which is based on the 3.18
> >> > kernel and a simple busybox.
> >> > We wanted to support the Y2038 issue on this older kernel.
> >> > Is this feasible
> >> > Do we have the Y2038 separate patches available for both kernel and userspace
> >> > ?
> >> > Or upgrading the kernel is the only option ?
> >>
> >> Upgrading is a much much better option.
> >>
> > Yes, I understand, but upgrading the kernel on this older SoC brings
> > more complexities, challenges and time taking.
> > Customers also do not agree for the upgrade at this stage and they are
> > looking for alternatives.
> > So, we are exploring both the options right now.
> >
> > Are there any patchset maintained separately for this Y2038 issue for
> > each kernel version to have a look ?
>
> I used to maintain a 5.4 kernel with backports from the 5.6 patches,
> but I would not recommend using that. Anything earlier than 5.4
> is completely hopeless for 2038 because one would have to essentially
> redo the changes from scratch.
>
OK thanks.

> Which chip exactly are you using?
This request is for one of the legacy QC MDM 9K chipset.