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Created attachment 1432398 [details] Output of journalctl -b | grep Hardware +++ This bug was initially created as a clone of Bug #1469488 +++ Hardware Error I have added an attachment with the complete output of journalctl -b | grep Hardware. As has been reported since Fedora 25, systems with the Intel J4205 and (in my case) the Intel J3455 processor come up with a Hardware Error early in boot. Is this a real error, or something to be ignored? In any event, it would be good to go away. Notice that my microcode number is different from bug 1469488, but the PROCESSOR 0:506c9 is the same. I don't know if that matters. [ 0.026335] mce: [Hardware Error]: Machine check events logged [ 0.026339] mce: [Hardware Error]: CPU 0: Machine Check: 0 Bank 4: a600000000020408 [ 0.026349] mce: [Hardware Error]: TSC 0 ADDR fef13b80 [ 0.026356] mce: [Hardware Error]: PROCESSOR 0:506c9 TIME 1525535033 SOCKET 0 APIC 0 microcode 2c $ journalctl -b | grep Hardware Jul 11 08:28:17 kiki kernel: mce: [Hardware Error]: CPU 0: Machine Check: 0 Bank 4: a600000000020408 Jul 11 08:28:17 kiki kernel: mce: [Hardware Error]: TSC 0 ADDR fef13580 Jul 11 08:28:17 kiki kernel: mce: [Hardware Error]: PROCESSOR 0:506c9 TIME 1499754494 SOCKET 0 APIC 0 microcode 1c Jul 11 08:28:31 kiki systemd[1]: Started Hardware RNG Entropy Gatherer Daemon. Jul 11 08:28:31 kiki mcelog[684]: Hardware event. This is not a software error. Jul 11 08:28:32 kiki systemd[1]: Starting Hardware Monitoring Sensors... Jul 11 08:28:32 kiki systemd[1]: Started Hardware Monitoring Sensors. Jul 11 08:33:47 kiki kernel: mce: [Hardware Error]: Machine check events logged $ mcelog mcelog: Family 6 Model 5c CPU: only decoding architectural errors mcelog: warning: 24 bytes ignored in each record mcelog: consider an update --- Additional comment from Christian Groove on 2017-07-11 07:33:58 EDT --- see also Bug 1467040 on FC25
My machine is quite new, btw. I built it yesterday. It's been up for 23 hours 24 minutes and I've been rsync'ing 742G of data to it. Plus I've watched about 1/2 hour of Lord of the Rings in Google Play Movies on Chrome. Which is to say, it certainly seems to be stable as far as I can tell. The error does not seem to be fatal... yet.
In the initial description, the lines containing "kiki" are from included from bug #1469488. Sorry for the confusion.
Please be so kind and tell us which mainboard you are using!
board_name: J3455-ITX board_vendor: ASRock bios_vendor: American Megatrends Inc. bios_version: P1.40
Someone reported it regarding the J4205 here: https://ask.fedoraproject.org/en/question/113119/mce-hardware-error-on-asrock-j4205-itx/
I upgraded my BIOS yesterday with the latest version that I could find @ ASRock's support site.
microcode_ctl-2.1-24.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2018-2005870f6f
microcode_ctl-2.1-24.fc28 has been pushed to the Fedora 28 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2018-2005870f6f
microcode_ctl-2.1-24.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.