Bug 1774322
Summary: | [RHEL 8] Do not update SKL-SP/W/X (CPUID 0x50654, 06-55-04) to revision 0x2000065 by default | |||
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Product: | Red Hat Enterprise Linux 8 | Reporter: | Eugene Syromiatnikov <esyr> | |
Component: | microcode_ctl | Assignee: | Eugene Syromiatnikov <esyr> | |
Status: | CLOSED ERRATA | QA Contact: | Jeff Bastian <jbastian> | |
Severity: | unspecified | Docs Contact: | ||
Priority: | unspecified | |||
Version: | 8.2 | CC: | efuller, laurent.rineau__fedora, skozina | |
Target Milestone: | rc | |||
Target Release: | 8.0 | |||
Hardware: | Unspecified | |||
OS: | Unspecified | |||
Whiteboard: | ||||
Fixed In Version: | microcode_ctl-20191115-2.el8 | Doc Type: | If docs needed, set a value | |
Doc Text: | Story Points: | --- | ||
Clone Of: | ||||
: | 1774329 (view as bug list) | Environment: | ||
Last Closed: | 2020-04-28 16:06:21 UTC | Type: | Bug | |
Regression: | --- | Mount Type: | --- | |
Documentation: | --- | CRM: | ||
Verified Versions: | Category: | --- | ||
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
Cloudforms Team: | --- | Target Upstream Version: | ||
Embargoed: | ||||
Bug Depends On: | ||||
Bug Blocks: | 1710951, 1774329, 1774635 |
Description
Eugene Syromiatnikov
2019-11-20 02:45:55 UTC
Verified with microcode_ctl-20191115-4.el8 Reinstalling the rpm leaves a note in the dmesg logs, and the microcode update is restricted to the previous version 0x2000064. The "force" file to override the blacklist still works. [root@lenovo-sr650-01 ~]# yum -y reinstall microcode_ctl-20191115-4.el8 ... [root@lenovo-sr650-01 ~]# dmesg [ 3839.859747] Microcode revision 0x2000065 for Intel Skylake-SP/X/W (family 6, model 85, stepping 4; CPUID 0x50654) CPUs that has been included into microcode-20191112 release is disabled as it may cause system instability and the previous revision 0x2000064 is used instead. Please refer to /usr/share/doc/microcode_ctl/caveats/06-55-04_readme and /usr/share/doc/microcode_ctl/README.caveats for details. [root@lenovo-sr650-01 ~]# journalctl -b0 --no-hostname -o short-monotonic | grep -i microcode.update [ 0.000000] kernel: microcode: microcode updated early to revision 0x2000064, date = 2019-07-31 [ 7.517347] kernel: microcode: Microcode Update Driver: v2.2. [ 15.481153] systemd[1]: Starting Load CPU microcode update... [ 15.574369] systemd[1]: Started Load CPU microcode update. [root@lenovo-sr650-01 ~]# cat /sys/devices/system/cpu/cpu0/microcode/version 0x2000064 ### Force the microcode update ### [root@lenovo-sr650-01 ~]# install -D /dev/null /etc/microcode_ctl/ucode_with_caveats/force-intel-06-55-04 [root@lenovo-sr650-01 ~]# /usr/libexec/microcode_ctl/update_ucode [root@lenovo-sr650-01 ~]# dracut --verbose --force --early-microcode [root@lenovo-sr650-01 ~]# lsinitrd /boot/initramfs-4.18.0-184.el8.x86_64.img | head Image: /boot/initramfs-4.18.0-184.el8.x86_64.img: 27M ======================================================================== Early CPIO image ======================================================================== drwxr-xr-x 3 root root 0 Feb 11 10:30 . -rw-r--r-- 1 root root 2 Feb 11 10:30 early_cpio drwxr-xr-x 3 root root 0 Feb 11 10:30 kernel drwxr-xr-x 3 root root 0 Feb 11 10:30 kernel/x86 drwxr-xr-x 2 root root 0 Feb 11 10:30 kernel/x86/microcode -rw-r--r-- 1 root root 34816 Feb 11 10:30 kernel/x86/microcode/GenuineIntel.bin [root@lenovo-sr650-01 ~]# reboot ... [root@lenovo-sr650-01 ~]# journalctl -b0 --no-hostname -o short-monotonic | grep -i microcode.update [ 0.000000] kernel: microcode: microcode updated early to revision 0x2000065, date = 2019-09-05 [ 7.540957] kernel: microcode: Microcode Update Driver: v2.2. [ 15.848569] systemd[1]: Starting Load CPU microcode update... [ 15.962939] systemd[1]: Started Load CPU microcode update. [root@lenovo-sr650-01 ~]# cat /sys/devices/system/cpu/cpu0/microcode/version 0x2000065 Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHEA-2020:1761 |