Got rt_cmos errors with the latest kernel-4.17 versions. Remember to have no issues with the first versions (rc0.git1.1.fc29 ..) dmesg | grep nvmem [ 0.709024] rtc_cmos 00:05: nvmem registration failed Msi z370 pc pro motherboard.
This also happened to my machine using the latest rawhide kernel. Asked on the linux-rtc mailing list, this is already solved upstream. Discussion: https://marc.info/?t=152724036300005&r=1&w=2 The solution is to just use this patch: https://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux.git/commit/?h=rtc-next&id=c59b3715ac16544f8f68ab7af03f108e339b36aa
Thanks for your reply.
Has that fixed it into latest rawhide kernel? I am still getting the error with the latest rawhide kernel (no-debug repo on Fedora 28). rtc_cmos 00:02: nvmem registration failed +pnp:00:02 and the system fails to boot kernel version 4.17.0-0.rc7.git2.2.fc29
(In reply to You from comment #3) > Has that fixed it into latest rawhide kernel? > > I am still getting the error with the latest rawhide kernel (no-debug repo > on Fedora 28). > > rtc_cmos 00:02: nvmem registration failed > +pnp:00:02 > > and the system fails to boot > > kernel version 4.17.0-0.rc7.git2.2.fc29 Same issue : 4.17.0-0.rc7.git1.2.fc29.x86_64 [ 0.652128] rtc_cmos 00:05: nvmem registration failed But no boot problem ,system run smooth.
Same issue on my laptop and my server.
Still occurs on kernel-4.17.2-200.fc28
Root cause is found: You have to enable CONFIG_RTC_NVMEM in kernel. More details: https://cateee.net/lkddb/web-lkddb/RTC_NVMEM.html
(In reply to nanericwang from comment #7) > Root cause is found: > You have to enable CONFIG_RTC_NVMEM in kernel. > > More details: > https://cateee.net/lkddb/web-lkddb/RTC_NVMEM.html You would only enable it if you had the necessary hardware to support it. The correct resolution is to have the patch applied (and hopefully it will be soon) that is mentioned in comment #1. This is now the forth instance I've encountered where spurious messages are being generated because optional (or hardware related to a specific processor such as Intel) isn't present (i.e. you are using AMD). This is just causing people to waste time searching for error messages that aren't errors. It needs to stop.
I experience the same issue on a SCHENKER XMG, CLEVO barebone based notebook. Message rtc_cmos 00:02: nvmem registration failed | Kernel Device +pnp:00:02
Getting this message on my Lenovo 520s with 4.17.2-200.fc28.x86_64.
Have the same message in my old notebook asus x71sl, kernel 4.17.2-200.fc28.x86_64 Can't boot since last kernel update.
Lenovo T420 with 4.17.2-200.fc28.x86_64. rtc_cmos 00:05: nvmem registration failed but the system boots and appears to operate accordingly.
Product B350M MORTAR ARCTIC (MS-7A37) motherboard CPU: AMD Ryzen 7 1700 Eight-Core Processor 4.17.2-200.fc28.x86_64 System boots OK and appears to work normally.
Happens to me on 4.17.2-200.fc28.x86_64 and Schenker XMG p501.
Same here, 4.17.2-200.fc28.x86_64, Thinkpad x230 Apart from the message, everything works fine
Same here, 4.17.2-200.fc28.x86_64, HP Spectre x360 (Skylake) Apart from the message, everything works.
rtc_cmos 00:01: nvmem registration failed on 4.17.2-200.fc28.x86_64, old HP 635 with AMD E-450 APU (Bobcat) Apart from the message, no problems spotted.
Hi folks. The fix for this should be included in the v4.17.3 builds, which should be up for testing tomorrow or Wednesday.
*** Bug 1594551 has been marked as a duplicate of this bug. ***
Thanks Jeremy for the update! FYI: Lenovo T430 rtc_cmos 00:02: nvmem registration failed kernel-4.17.2-200.fc28 sudo dmidecode -t bios -q BIOS Version: G1ETB6WW (2.76 ) Release Date: 03/22/2018 BIOS Revision: 2.76 Firmware Revision: 1.13 No other issues observed. Waiting on the fix for v4.17.3 (Comment 1 & 18)
That's great news ... thank you for the information, Jeremy ! :) Besides this minor issue kernel 4.17.2 works as expected so far.
Thank you. Hope it will fix the problem because I have the problem in my dell desktop optiplex.....
(In reply to Jeremy Cline from comment #18) > Hi folks. The fix for this should be included in the v4.17.3 builds, which > should be up for testing tomorrow or Wednesday. Which commit? I didn't see it in https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.17.3
kernel-4.17.3-100.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2018-2a0f8b2c9d
kernel-4.17.3-200.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2018-d92fde52d7
kernel-4.17.3-100.fc27 has been pushed to the Fedora 27 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-2018-2a0f8b2c9d
kernel-4.17.3-200.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-d92fde52d7
kernel-4.17.3-100.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.
kernel-4.17.3-200.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.
kernel-4.17.3-200.fc28 has fixed this problem on B350M MORTAR ARCTIC (MS-7A37) motherboard CPU: AMD Ryzen 7 1700 Eight-Core Processor Thank you.
I'm still having problem to boot fedora , have updated kernel to 4.17.3-200.fc28 on my desktop pc optiplex 780 the error message has disappeared but it's blocking at logo "f" fedora, and in my asus x71sl it's ok, I can boot now.
Confirmed Fixed with kernel-4.17.3-200.fc28 Also confirmed fix still works with the new Spectre, Meltdown, TLBleed BIOS/FW updates for T430 & W530 Lenovo ThinkPad T430 BIOS G1ETB7WW (2.77 ) 06/05/2018 Lenovo ThinkPad W430 BIOS G5ETB2WW (2.72 ) 06/11/2018