Linux 4.16-rc1 Kernel Released With Many Changes

[phoronix]

Phoronix: Linux 4.16-rc1 Kernel Released With Many Changes

Just like clockwork, the first release candidate of Linux 4.16 is now available...

http://www.phoronix.com/scan.php?page=news_item&px=Linux-4.16-rc1-Kernel

[RealNC]

Apparently Spectre v1 mitigation has landed already in 4.14. Never saw any news about it here. Missed it, Michael?

$ cat /sys/devices/system/cpu/vulnerabilities/spectre_v1  
Mitigation: __user pointer sanitization

[dungeon]

Yeah 4.14.18 have spectre1 mitigated, while 4.9, 4.4 or older not yet... actually older than these have not spectre2 yet, but all have pti.

Short news

> cat /proc/sys/kernel/osrelease
4.14.18
> cat /sys/devices/system/cpu/vulnerabilities/*
Not affected
Mitigation: __user pointer sanitization
Mitigation: Full AMD retpoline

[perpetually high]

If Linus is happy, I'm happy.

[audir8]

4.15.2 seems to have added spectre v1 mitigation too:

> cat /proc/sys/kernel/osrelease
4.15.2
> cat /sys/devices/system/cpu/vulnerabilities/*
Not affected
Mitigation: __user pointer sanitization
Mitigation: Full AMD retpoline

Compiled using GCC 7.3. Now, which programs need to be recompiled using the spectre gcc changes? Everything except games?

[dungeon]

Compiled using GCC 7.3. Now, which programs need to be recompiled using the spectre gcc changes? Everything except games?

Everything and nothing It is just that retopline require this.

Third party kernel modules needs to be built by same to say 'spectre-aware' compiler of course, otherwise kernel will warn you

[czz0]

Just updated, very excited to see MUCH better performance with amdgpu.dc=1 on my RX460 compared to the 4.15 kernels, which was completely broken.

All 4.15 kernels with amdgpu.dc=1 are unusable to me, got terrible performance. Now I'm getting better performance than I did with 4.14, or 4.15 with amdgpu.dc=0

Finally, HDMI audio, and even better performance.

[hax0r]

Should drop x86 support altogether.

[brrrrttttt]

Should drop x86 support altogether.

... riiiiiiiight...

[Azrael5]

will this kernel be available in the next release of linux distros in april? thanks