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From: Stefan Roese <sr@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] Sleep doesn't work in NetConsole mode?
Date: Sat, 22 Oct 2005 11:05:50 +0200	[thread overview]
Message-ID: <200510221105.52084.sr@denx.de> (raw)
In-Reply-To: <518B77BB6246D54D9E88FC49AFB0389D2F1C2B@seskoptronicmsx.optronic.local>

Andre,

On Monday 17 October 2005 17:02, Andr? Berggren wrote:

> I started using NetConsole today and it's working almost as expected.
>
> When I run sleep 2 in u-boot with serial connected u-boot sleeps for 2 s,
> but when I do the same when connected with NetConsole sleep never returns.
> I have to abort it with Ctrl + C. Why?

The sleep 2 with NetConsole does return, but much later. On my test system 
(bubinga, 405EP), a sleep 1 returns after approx. 13 seconds! This is related 
to the current implementation of "do_sleep()", just doing 1000 times 
udelay(1000). This should work of course, but the test in this loop for 
ctrlc() now introduces a lot of delay (timeouts, delays in the ethernet 
driver etc...).

As you my have noticed, I changed "do_sleep()" to use "get_timer()". This way 
it works without any problems. Please give the latest cvs/git version a try, 
and let me know if you still experience any problems.

Best regards,
Stefan

      parent reply	other threads:[~2005-10-22  9:05 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-10-17 15:02 [U-Boot-Users] Sleep doesn't work in NetConsole mode? André Berggren
2005-10-17 15:14 ` Wolfgang Denk
2005-10-22  9:05 ` Stefan Roese [this message]

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