The Latest Kernel Release.

cwizardone · 08-09-2022, 02:04 PM

Year 2022, Round 48.

Another batch of updates has been scheduled for release on Thursday, 11 August 2022, at approximately 18:00 GMT. If no problems are found while testing the release candidates, they might be available sometime on Wednesday (depending on your time zone).

The details:

5.19.1-rc1, with 21 patches, https://lkml.iu.edu/hypermail/linux/...8.1/01883.html

5.18.17-rc1, with 35 patches, https://lkml.iu.edu/hypermail/linux/...8.1/01863.html

5.15.60-rc1, with 30 patches, https://lkml.iu.edu/hypermail/linux/...8.1/01797.html

5.10.136-rc1, with 23 patches, https://lkml.iu.edu/hypermail/linux/...8.1/01806.html

5.4.210-rc1, with 15 patches, https://lkml.iu.edu/hypermail/linux/...8.1/01772.html

4.19.255-rc1, with 32 patches, https://lkml.iu.edu/hypermail/linux/...8.1/01750.html

Chuck56 · 08-09-2022, 02:36 PM

Quote:

Originally Posted by cwizardone

Year 2022, Round 48.5.19.1-rc1, with 21 patches, https://lkml.iu.edu/hypermail/linux/...8.1/01883.html

I don't see any patches that address the efi boot stub issue we ran accross with 5.19.0. Maybe all the devs use grub or haven't run into the issue yet?

Didier Spaier · 08-09-2022, 02:49 PM

Quote:

Originally Posted by Chuck56

Maybe all the devs use grub or haven't run into the issue yet?

Maybe nobody reported it upstream?

cwizardone · 08-11-2022, 06:47 AM

Kernel updates 5.19.1, 5.18.17, 5.15.60, 5.10.136, 5.4.210 and 4.19.255 are now available at, https://www.kernel.org

The change logs,

https://cdn.kernel.org/pub/linux/ker...angeLog-5.19.1

https://cdn.kernel.org/pub/linux/ker...ngeLog-5.18.17

https://cdn.kernel.org/pub/linux/ker...ngeLog-5.15.60

https://cdn.kernel.org/pub/linux/ker...geLog-5.10.136

https://cdn.kernel.org/pub/linux/ker...ngeLog-5.4.210

https://cdn.kernel.org/pub/linux/ker...geLog-4.19.255

cwizardone · 08-11-2022, 11:09 AM

Quote:

Linux 5.19.1 Released With LTS Kernels Back To 4.19 For The "PBRSB" CPU Issue
Michael Larabel. 11 August 2022
.......Most notable with these new Linux kernel releases are eIBRS-PBRSB after finding Intel eIBRS CPUs to provide insufficient protections.........

The full story can be found at, https://www.phoronix.com/news/Linux-...-And-Older-LTS

LuckyCyborg · 08-11-2022, 11:16 AM

Quote:

Originally Posted by Chuck56

I don't see any patches that address the efi boot stub issue we ran accross with 5.19.0. Maybe all the devs use grub or haven't run into the issue yet?

Maybe nobody else still uses ELILO after 8 years since its EOL?

However, I guess that you guessed right, and everybody uses GRUB2 or systemd-boot(x64) - after all, those are the bootloaders maintained today.

Didier Spaier · 08-11-2022, 02:05 PM

Please find attached a config file for 5.19.1, FWIW.

After building and installation, I typed:

Code:

dracut --kver 5.19.1 --zstd
update-grub

Now cat /proc/cmdline :

Code:

BOOT_IMAGE=/@/boot/vmlinuz-generic-5.19.1 root=UUID=fbc0dc14-cc56-4885-ad4b-0bc54af036eb ro rootflags=subvol=@ rootdelay=10

kjhambrick · 08-12-2022, 04:23 AM

all --

Generic Kernel Version 5.15.60.kjh is running fine on my Slackware64 15.0 + Multilib LapTop.

As noted by Michael Larabel via cwizardone's post #4685 above, there is a new CPU Bug ( eibrs_pbrsb ) and a new spectre_v2 mitigation ( PBRSB-eIBRS: SW sequence ) for the 5.15.60 Kernel.

-- kjh

Code:

uname -msrpn: Linux kjhlt7.kjh.home 5.15.60.kjh x86_64 11th Gen Intel(R) Core(TM) i9-11900K @ 3.50GHz
firmware ...: kernel-firmware-20220810_ad5ae82-noarch-1
NVidia Blob : NVIDIA-Linux-x86_64-515.65.01.run
VMWare Blob : VMware-Workstation-Full-16.2.3-19376536.x86_64.bundle

CPU Vulnerabilities:

Code:

Fri Aug 12 04:11:30 CDT 2022

  Linux kjhlt7.kjh.home 5.15.60.kjh #1 SMP PREEMPT Fri Aug 12 03:25:08 CDT 2022 x86_64 11th Gen Intel(R) Core(TM) i9-11900K @ 3.50GHz GenuineIntel GNU/Linux

  dmesg
    microcode: microcode updated early to revision 0x53, date = 2022-03-09
    Linux version 5.15.60.kjh (root@kjhlt7.kjh.home) (gcc (GCC) 11.2.0, GNU ld version 2.37-slack15) #1 SMP PREEMPT Fri Aug 12 03:25:08 CDT 2022
    Command line: BOOT_IMAGE=/boot/vmlinuz-generic-5.15.60.kjh root=UUID=6c71cd77-2463-408e-a992-ad6064b0651b ro nvidia-drm.modeset=1
    DMI: Notebook X170KM-G/X170KM-G, BIOS 1.07.06LS1 01/11/2020

  cpuinfo
    CPU Name:   11th Gen Intel(R) Core(TM) i9-11900K @ 3.50GHz
    Microcode:  0x53
    CPU FMS:    06-a7-01
    UCode Pkg:  intel-microcode-20220510-noarch-1_SBo_kjh  ( updated May 18 13:20 )
    UCode File: /lib/firmware/intel-ucode/06-a7-01         ( updated May 18 13:19 )
    UCode Info: 001/001: sig 0x000a0671, pf_mask 0x02, 2022-03-09, rev 0x0053, size 103424
    CPU bugs:   spectre_v1, spectre_v2, spec_store_bypass, swapgs, mmio_stale_data, retbleed, eibrs_pbrsb

  vulnerability and mitigation files in /sys/devices/system/cpu/vulnerabilities/
    itlb_multihit:       Not affected
    l1tf:                Not affected
    mds:                 Not affected
    meltdown:            Not affected
    mmio_stale_data:     Mitigation: Clear CPU buffers; SMT vulnerable
    retbleed:            Mitigation: Enhanced IBRS
    spec_store_bypass:   Mitigation: Speculative Store Bypass disabled via prctl and seccomp
    spectre_v1:          Mitigation: usercopy/swapgs barriers and __user pointer sanitization
    spectre_v2:          Mitigation: Enhanced IBRS, IBPB: conditional, RSB filling, PBRSB-eIBRS: SW sequence
    srbds:               Not affected
    tsx_async_abort:     Not affected

Chuck56 · 08-12-2022, 07:56 AM

5.19.1 boots on GRUB, ELILO & the EFI boot stub on my -current desktop!

Code:

bash-5.1$ inxi -b
System:
  Host: desktop Kernel: 5.19.1 arch: x86_64 bits: 64 Desktop: KDE Plasma
    v: 5.25.4 Distro: Slackware 15.0
Machine:
  Type: Desktop System: ASUS product: N/A v: N/A serial: <superuser required>
  Mobo: ASUSTeK model: PRIME B450M-A II v: Rev X.0x
    serial: <superuser required> UEFI: American Megatrends v: 2807
    date: 02/01/2021
CPU:
  Info: 6-core AMD Ryzen 5 5600G with Radeon Graphics [MT MCP] speed (MHz):
    avg: 1608 min/max: 1400/3900
Graphics:
  Device-1: AMD Cezanne driver: amdgpu v: kernel
  Display: server: X.Org v: 21.1.4 with: Xwayland v: 22.1.3 driver: X:
    loaded: amdgpu unloaded: modesetting,vesa gpu: amdgpu
    resolution: 2560x1440~60Hz
  OpenGL: renderer: AMD RENOIR (LLVM 14.0.6 DRM 3.47 5.19.1) v: 4.6 Mesa
    22.1.6
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    driver: r8169
Drives:
  Local Storage: total: 1.93 TiB used: 538.95 GiB (27.3%)
Info:
  Processes: 325 Uptime: 4m Memory: 15.01 GiB used: 1.7 GiB (11.3%)
  Shell: Bash inxi: 3.3.20

Happy camper here!

cwizardone · 08-12-2022, 10:56 AM

The 5.19.1 kernel has been added to -current/testing.

Quote:

Fri Aug 12 01:47:02 UTC 2022
..........
testing/packages/linux-5.19.x/kernel-generic-5.19.1-x86_64-1.txz: Added.
testing/packages/linux-5.19.x/kernel-headers-5.19.1-x86-1.txz: Added.
testing/packages/linux-5.19.x/kernel-huge-5.19.1-x86_64-1.txz: Added.
testing/packages/linux-5.19.x/kernel-modules-5.19.1-x86_64-1.txz: Added.
testing/packages/linux-5.19.x/kernel-source-5.19.1-noarch-1.txz: Added.
..........
+--------------------------+

garpu · 08-12-2022, 11:38 AM

Quote:

Originally Posted by Chuck56

5.19.1 boots on GRUB, ELILO & the EFI boot stub on my -current desktop!
Happy camper here!

Interesting. Does that mean that upstream fixed the efi boot stub, if the boot stub works for booting?

LuckyCyborg · 08-12-2022, 11:56 AM

Quote:

Originally Posted by garpu

Interesting. Does that mean that upstream fixed the efi boot stub, if the boot stub works for booting?

I do not think that there was any issue with the kernel itself.

The fact that someone does not managed to boot directly the EFI stub is not a proof, considering that there are tons of buggy BIOS and UEFI firmwares.

I for one, I had not issues with 5.19.0 while booting this way and I tested in 5 different computers. Yes, I have a garage full of junkware.

GazL · 08-12-2022, 07:53 PM

Quote:

Originally Posted by LuckyCyborg

I do not think that there was any issue with the kernel itself.

The fact that someone does not managed to boot directly the EFI stub is not a proof, considering that there are tons of buggy BIOS and UEFI firmwares.

Dodgy firmware could certainly be a factor, but why would Chuck's 5.19.0 fail to boot, yet 5.18.x and 5.19.1 are fine? 5.19.1 has very few changelog entries and a lot of them don't look like they would have any relevance. So, what's changed for him?

The whole situation seems very unclear to me now. I'm just glad things seem to be working again.

Chuck56 · 08-12-2022, 08:05 PM

Quote:

Originally Posted by GazL

Dodgy firmware could certainly be a factor, but why would Chuck's 5.19.0 fail to boot, yet 5.18.x and 5.19.1 are fine? 5.19.1 has very few changelog entries and a lot of them don't look like they would have any relevance. So, what's changed for him?

The whole situation seems very unclear to me now. I'm just glad things seem to be working again.

Who knows why at this point. Of note, I'm running -current only on my daily driver, an AMD desktop. The 5.19 kernel series introduced a number of new features:

https://www.phoronix.com/news/Linux-5.19-Features

Maybe the new AMD features like SEV-SNP caused an unrelated issue in 5.19.0 for me?

https://www.phoronix.com/news/AMD-SE...ves-Linux-5.19

Intel had some big feature adds too:

https://www.phoronix.com/news/Intel-TDX-For-Linux-5.19

In any case, Pat pushed the 5.19 kernel into testing & 5.19.1 is working on my desktop. I think we can move on for now.

cwizardone · 08-13-2022, 10:49 AM