How the date or time is implemented in Linux SC58x

Hi ACS,

It works well locally on sc589-ezkit board with Linux add-in 1.3.1 after 18 hours of running:

Welcome to Buildroot
buildroot login: root
Password:

_______________________________________
a8888b. / Welcome to the buildroot distribution \
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8|o||o|88 _____/ | | _ ____ _ _ \ \/ / |
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8`._.' Y8. \ | |__ | | | | | |_| | / \ |
d/ `8b. \ \____||_|_| |_|\____|/_/\_\ |
dP . Y8b. \ For embedded processors including |
d8:' " `::88b \ the Analog Devices ADSP-SC5xx /
d8" 'Y88b \_____________________________________/
:8P ' :888
8a. : _a88P For further information, check out:
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\ YP" `| 8P `.
/ \.___.d| .' - http://buildroot.org/
`--..__)8888P`._.' jgs/a:f - http://www.analog.com/

Have a lot of fun...
# cd /
# date
Thu Jan 1 01:29:51 UTC 1970
# date
Thu Jan 1 01:29:52 UTC 1970
#
# date
Thu Jan 1 03:39:07 UTC 1970
#
#
# date
Thu Jan 1 18:59:51 UTC 1970
# date
Thu Jan 1 19:25:04 UTC 1970
# cat /proc/version
Linux version 4.0.0-ADI-1.3.1 (test@119-test-build) (gcc version 4.8.3 (Analog 9
# date
Thu Jan 1 19:25:36 UTC 1970
# date
Thu Jan 1 19:36:31 UTC 1970
# date
Thu Jan 1 21:32:33 UTC 1970
# date
Thu Jan 1 22:37:46 UTC 1970
# date
Thu Jan 1 22:42:17 UTC 1970
# date

Could you please help to double check it?

"date" command will display or set the Linux system time, and another Linux command "hwclock" will query and set the hardware clock(RTC), normally the Linux RTC subsystem will set the system clock according with the hardware clock(RTC) on startup, you can refer to "linux-kernel/drivers/rtc/hctosys.c" for more information, below is the boot log:

console [netcon0] enabled
netconsole: network logging started
rtc-adi2 310c8000.rtc: setting system clock to 1970-01-01 01:29:15 UTC (5355)
IP-Config: Complete:
device=eth0, hwaddr=02:80:ad:20:31:e8, ipaddr=10.99.24.73, mask=255.255.251
host=sc58x, domain=, nis-domain=(none)
bootserver=10.99.24.66, rootserver=10.99.24.66, rootpath=

Thanks a lot.

Thank you for the info..  This issue only happened under multi-thread stress test.

Hi ACS,

Could you also call "hwclock" to get the RTC when it happened, just to confirm the RTC is working or not.