From: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
To: Jinke Fan <fanjinke@hygon.cn>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>,
J William Piggott <elseifthen@gmx.com>,
Karel Zak <kzak@redhat.com>,
"util-linux@vger.kernel.org" <util-linux@vger.kernel.org>,
Linux List Kernel Mailing <linux-kernel@vger.kernel.org>,
"linux-rtc@vger.kernel.org" <linux-rtc@vger.kernel.org>
Subject: Re: [bugreport] "hwclock -w" reset time instead of setting the right time
Date: Sat, 4 Jan 2020 13:25:23 +0500 [thread overview]
Message-ID: <CABXGCsNpS+nCMZ9C89UQVEu_u+hJVtdxCvdnj2QNqQf-j7+DrA@mail.gmail.com> (raw)
In-Reply-To: <7c015680-01b7-9c3e-c4c7-5d0b6e964781@hygon.cn>
On Sat, 4 Jan 2020 at 10:46, Jinke Fan <fanjinke@hygon.cn> wrote:
>
> Hi Mike,
> The root cause of the bug you encountered is unclear.
>
=== cutted ===
>
> There is no date reset found in the bios after reboot.
> The first time during OS startup get date from rtc_cmos is:
> [ 1.589157] rtc_cmos 00:03: setting system clock to
> 2020-01-04T04:07:01 UTC (1578110821)
> I watched the video on youtube. The date is reseted when startup into
> bios at Mike's platform.
> As we know that the bios will check the validity of rtc time, if not,
> bios will reset the rtc time. RTC time reset may be done by the BIOS.
Did you disable automatic time synchronization?
By default Fedora GNOME doing automatic time synchronization.
For this reason, it’s more correct to immediately go into the BIOS
after a reboot and there check the time value or turn off automatic
time synchronization
--
Best Regards,
Mike Gavrilov.
next prev parent reply other threads:[~2020-01-04 8:25 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CABXGCsODr3tMpQxJ_nhWQQg5WGakFt4Yu5B8ev6ErOkc+zv9kA@mail.gmail.com>
[not found] ` <20200101141748.GA191637@mit.edu>
[not found] ` <CABXGCsOv26W6aqB5WPMe-mEynmwy55DTfTeL5Dg9vRq6+Y6WvA@mail.gmail.com>
[not found] ` <CABXGCsNkzPrjqMRaWpssorxzhMLWBvLeSw9BpKYr_DW4LJQECQ@mail.gmail.com>
[not found] ` <20200102110817.ahqaqidw3ztw3kax@10.255.255.10>
[not found] ` <CABXGCsNkm3VuzO60WBCi4VJmDnO=DmprQ1P=dd0FcW2-+dGc0w@mail.gmail.com>
2020-01-02 13:14 ` [bugreport] "hwclock -w" reset time instead of setting the right time Karel Zak
2020-01-02 15:00 ` Mikhail Gavrilov
2020-01-02 16:58 ` J William Piggott
2020-01-02 17:17 ` Mikhail Gavrilov
2020-01-03 10:02 ` Alexandre Belloni
2020-01-03 10:11 ` Mikhail Gavrilov
2020-01-03 10:19 ` Alexandre Belloni
2020-01-03 14:22 ` Mikhail Gavrilov
2020-01-04 5:44 ` Jinke Fan
2020-01-04 8:25 ` Mikhail Gavrilov [this message]
2020-01-04 11:35 ` Jinke Fan
2020-01-04 12:23 ` Mikhail Gavrilov
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CABXGCsNpS+nCMZ9C89UQVEu_u+hJVtdxCvdnj2QNqQf-j7+DrA@mail.gmail.com \
--to=mikhail.v.gavrilov@gmail.com \
--cc=alexandre.belloni@bootlin.com \
--cc=elseifthen@gmx.com \
--cc=fanjinke@hygon.cn \
--cc=kzak@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-rtc@vger.kernel.org \
--cc=util-linux@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).