[NEWS] Linux 7.2

[tle]

So what's new?

* initial HDMI 2.1 FRL support to the AMDGPU driver -- so far no regression found yet, amdgpu works as expected
* support for devres-based management of ACPI notify handlers
* initial CRI platform support for the Intel Xe driver
* Rust support for the IBM System/390 (S/390) architecture
* Fair(er) GPU scheduler
* improves the new NTFS filesystem introduced in Linux kernel 7.1
and many more changes

Not much changes related to ppc64

[Corvidae]

I suggest not updating to the 7.2 kernels right now - I ran into an issue on 7.2.0 and 7.2.2 where I got random segfaults in ld64.so.2 while compiling things. It looks like there is some kind of issue with syscalls that causes userspace crashes: https://www.mail-archive.com/linuxppc-dev@lists.ozlabs.org/msg258968.html.

There is a suggested patch on that mailing list post, but I'm not sure if anything has been submitted yet. I haven't personally tried 7.2.3, but I didn't spot anything in the changelog that looked like it might have fixed it.

[MPC7500]

Thanks. And I was already thinking that maybe there was a hardware issue.

[ClassicHasClass]

7.2.5 isn't working on mine either. However, I also got bit by the issue with some SATA cards causing a kernel panic in earlier kernels, so I need to debug this further. I'm still booting 6.14 on a current Fedora userland, which is not ideal.

[MauryG5]

And yet, it works for me on all three distros I currently have installed. This is version 7.2.2 on Ubuntu; I have the same 7.2.2 on Debian—both compiled by me. On Fedora, I'm currently running version 7.2.7, which I installed recently.

[Corvidae]

It looks like 7.2.7 backported a fix for the issue (ade9f5464ff78316ae6789771f173b3b22ab50fb, "powerpc: Don't drop _TIF_RESTOREALL on syscall restart"). My distro had 7.2.8 by the time I got around to testing, but that survived my overnight compile session with no segfaulting, so I'd say it's safe to use the 7.2 series now.

And yet, it works for me on all three distros I currently have installed. This is version 7.2.2 on Ubuntu; I have the same 7.2.2 on Debian—both compiled by me. On Fedora, I'm currently running version 7.2.7, which I installed recently.

I still suggest updating your Ubuntu and Debian kernels. From when I was on those kernels, normal computer usage was fine, but whenever I tried compiling anything (which took 100% of the CPU because I was using all cores) I started getting random processes in the compile jobs start crashing. I don't know enough about how interrupts work to say whether it's possible to trigger the issue when you have any cores idle.

[tle]

No issue with 7.2.9 (shipped with Fedora 45) so far

Everything works as expected

[ClassicHasClass]

7.2.9 is finally booting properly on my Talos II. Whew.