<div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-size:small"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, May 12, 2022 at 10:05 PM Eirik Fuller <<a href="mailto:efuller@redhat.com">efuller@redhat.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Sorry to chime in late, but do we care about crossing day, month, or year boundaries? For example, what if we write 23:59:59 and read 00:00:01 ?</div></blockquote><div><br></div><div class="gmail_default" style="font-size:small">Good question Eirik, actually we have avoided that zero clocks.</div><div class="gmail_default" style="font-size:small">It's impossible to get time crossing day/month/year (or 00:00:xx)</div><div class="gmail_default" style="font-size:small">in the clock unless a new bug is happening.</div></div><div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">See:</div><div class="gmail_default" style="font-size:small"><a href="https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/device-drivers/rtc/rtc02.c#L107">https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/device-drivers/rtc/rtc02.c#L107</a><br></div><div class="gmail_default" style="font-size:small"></div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div>Regards,<br></div><div>Li Wang<br></div></div></div></div>