01-10-2018 09:41 AM
Posted to allow cross-reference and verification with other users. If Lenovo staff have specific knowledge of this issue kindly let us know.
Confirmed that after updating a Thinkpad W541 to Lenovo Bios 188.8.131.52 on 2/January/2018 I have the following errors in the Windows Event Log (Windows 7):
A corrected hardware error has occurred.
Reported by component: Processor Core
Error Source: Corrected Machine Check
Error Type: Internal parity error
Processor ID: 0
The details view of this entry contains further information.
01-10-2018 09:51 AM
Note: Lenovo Bios 184.108.40.206 contains an update for CVE 2017-5715 "Branch target injection".
01-11-2018 07:12 AM
Also note similar issue in this thread for the T440s (for which latest BIOS is 2.46). Seems that several of Lenovo's latest BIOS releases do not work with KB4056892.
Lenovo: Please provide guidance!
01-12-2018 09:50 AM
I'm seeing this issue on 2 systems as well, a W541 and a X240 - we have a lot of Lenovo in our inventory, and it seems to be the 40 series machines with this specific issue. If I uninstall the patch for the processor vulnerabilities the issue goes away, but we don't want to leave that vulnerability open now that it's public domain - so we're dealing with blue screen errors and degraded performance at the moment.
When I called support they were going to send a new CPU, which seems a little excessive
01-14-2018 05:52 PM
I see the same thing on a ThinkCentre M93P 10A6 after BIOS was updated to Rev Level 12/13/2017 (FBKTCPAUS)
"WHEA-Logger Event 19 / Processor Core / Corrected Machine Check / Internal Parity Error "
Repeating at various times every few minutes.
Prior to this, no such error seen.
01-15-2018 04:23 AM
I am experiencing the same problem on a Thinkpad W541 after a Bios update 2.33 and the Windows updates to address the spectre/meltdown vulnerabilities. The system becomes unresponsive without a blue screen displayed and requires a reboot to recover. This happens at intermittent times, but the WHEA-logger event features prominently since the update.
Would appreciate if Lenovo could resolve this issue.
01-19-2018 05:54 AM - edited 01-19-2018 06:02 AM
Same issue with a W540 (core i7 4900mq) and the current bios version (2.32) in Windows 10 1709.
We see the same Error with Bluescreens on HP EliteDesk Clients. It seems not related only to Lenovo HW.
01-19-2018 06:20 AM
Just made the test with uninstalling the KB4056892 and after reboot, the EventID 19 didn't happen anymore and the Performance on the system is OK again.
01-20-2018 01:50 PM
same Problem on my L440 with Core i3-4000m. Latest Bios 1.90 from Lenovo. Since the KB4056892 on my eventviewer thousends WHEA-Logger Event 19. The solution i found here:
BTW how can i remove the KB4056892 ? On my W10 it is not removable.