netdev - Re: Bad TCP timestamps on non-PC platforms

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Message-Id: <20110106.084433.193708782.davem@davemloft.net>
Date:	Thu, 06 Jan 2011 08:44:33 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	oakad@...oo.com
Cc:	netdev@...r.kernel.org
Subject: Re: Bad TCP timestamps on non-PC platforms

From: Alex Dubov <oakad@...oo.com>
Date: Wed, 5 Jan 2011 22:55:43 -0800 (PST)

> On embedded platforms, where real time clock is initialized lately or
> absent outright, this causes TSval field of outgoing TCP packets to be
> set to some garbage value, in my case in the vicinity of 0xffffffff.

The TCP timestamp is set from "jiffies", not from the RTC clock.
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