From: Linus Walleij <linus.ml.walleij@gmail.com>
To: 林建安 <colin@realtek.com.tw>
Cc: linux-kernel@vger.kernel.org
Subject: Re: jiffies got lost because of printk
Date: Tue, 14 Jul 2009 17:23:47 +0200 [thread overview]
Message-ID: <63386a3d0907140823s62140f85t7947a8ebe02382e9@mail.gmail.com> (raw)
In-Reply-To: <48F90369174947C98F6AE82888FA60C5@realtek.com.tw>
2009/7/14 林建安 <colin@realtek.com.tw>:
> We found that system time is not synced with RTC time on our embedded
> system. (...)
> interrupt will be disabled for more than 1 HZ and timer interrupt will be
> lost.
This sounds like you're using some kind of old timekeeping code.
Make sure you migrate to using a proper time source and clock
events. It will compensate for lost jiffies in situations like this.
Linus Walleij
prev parent reply other threads:[~2009-07-14 15:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-14 11:39 林建安
2009-07-14 15:23 ` Linus Walleij [this message]
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