FS#70792 - missing /dev/rtc

Attached to Project: Arch Linux
Opened by fsdsfd (BCD889) - Tuesday, 11 May 2021, 06:48 GMT
Last edited by Toolybird (Toolybird) - Tuesday, 06 June 2023, 03:18 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To Jan Alexander Steffens (heftig)
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Hi

In my device, i can't use hwclock, all /dev/rtc* file are missing

upstream linux-zen and util-linux



sudo hwclock --show --verbose

hwclock da util-linux 2.37-rc2
System Time: 1620715013.784981
Trying to open: /dev/rtc0
Trying to open: /dev/rtc
Trying to open: /dev/misc/rtc
Impossibile trovare un'interfaccia clock utilizzabile.
hwclock: Cannot access the Hardware Clock via any known method.


sudo dmesg | grep rtc
[ 0.248107] WARNING: CPU: 0 PID: 1 at drivers/rtc/rtc-mc146818-lib.c:25 mc146818_get_time+0x1c8/0x220
[ 1.614539] rtc_cmos 00:02: RTC can wake from S4
[ 1.614562] rtc_cmos 00:02: not accessible


sudo timedatectl
Local time: mar 2021-05-11 08:41:16 CEST
Universal time: mar 2021-05-11 06:41:16 UTC
RTC time: n/a
Time zone: Europe/Rome (CEST, +0200)
System clock synchronized: yes
NTP service: active
RTC in local TZ: no
This task depends upon

Closed by  Toolybird (Toolybird)
Tuesday, 06 June 2023, 03:18 GMT
Reason for closing:  Not a bug
Additional comments about closing:  Old and stale. It might have been a transient problem but certainly is not a issue these days. If still happening, please report upstream and/or visit the support channels.
Comment by fsdsfd (BCD889) - Tuesday, 11 May 2021, 16:08 GMT
rtc works fine in linux-lts

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