From: marek.vasut@gmail.com (Marek Vasut)
To: linux-arm-kernel@lists.infradead.org
Subject: Zaurus CF tests -- ok
Date: Sat, 16 Apr 2011 06:04:42 +0200 [thread overview]
Message-ID: <201104160604.42482.marek.vasut@gmail.com> (raw)
In-Reply-To: <20110415213817.GC4420@atrey.karlin.mff.cuni.cz>
On Friday, April 15, 2011 11:38:17 PM Cyril Hrubis wrote:
> Hi!
>
> > After getting _good_ power supply, I was able to untar and rm ltp tree
> > 100 times so far. 2.6.38, ext3. (So metan no, I do not see any weird
> > ext3 problems).
>
> Hmm, I'm using original adapter, but who knows if it's okay to use...
I can lend you Eric's, but promise you won't break it or do anything weird to it
;-)
>
> > Another strange thing is... I see lots of duplicated keystrokes --
> > like type "pavel" but machine understands "paavel". But it only seems
> > to happen when I'm _not_ trying to debug it?!
>
> That seems to be side effect of machine under load (it has gpio keyboard).
Yea ... it's that polled para-keyboard I guess.
>
> > (
> > So... just because something needs 5V does not mean you should charge
> > it from USB.
> >
> > Yes, I'm talking about zaurus. I noticed that it crashed rather
> > quickly when connected to USB power. (For example in tar/rm test).
> > So I took multimeter, and there was 4.15..4.5V on USB :-(.
> >
> > With power from USB extension cable, it crashes in <5 minutes. It
> > seems to toggle charger a lot, as voltage on the cable is only
> > 4.2..4.5V. I guess it is software problem in the charging code.
> > )
>
> The zaurus actually is AFAIK unable to run from battery when connected to
> the external power, so weak power line may explain some of the strange
> behaviour.
As for the charging code, do we even have anything even remotely resembling that
?
WARNING: multiple messages have this Message-ID (diff)
From: Marek Vasut <marek.vasut@gmail.com>
To: Cyril Hrubis <metan@ucw.cz>
Cc: Pavel Machek <pavel@ucw.cz>,
rpurdie@rpsys.net, lenz@cs.wisc.edu,
kernel list <linux-kernel@vger.kernel.org>,
arminlitzel@web.de, thommycheck@gmail.com,
"linux-arm-kernel" <linux-arm-kernel@lists.infradead.org>,
dbaryshkov@gmail.com, omegamoon@gmail.com, eric.y.miao@gmail.com,
utx@penguin.cz, zaurus-devel@www.linuxtogo.org
Subject: Re: Zaurus CF tests -- ok
Date: Sat, 16 Apr 2011 06:04:42 +0200 [thread overview]
Message-ID: <201104160604.42482.marek.vasut@gmail.com> (raw)
In-Reply-To: <20110415213817.GC4420@atrey.karlin.mff.cuni.cz>
On Friday, April 15, 2011 11:38:17 PM Cyril Hrubis wrote:
> Hi!
>
> > After getting _good_ power supply, I was able to untar and rm ltp tree
> > 100 times so far. 2.6.38, ext3. (So metan no, I do not see any weird
> > ext3 problems).
>
> Hmm, I'm using original adapter, but who knows if it's okay to use...
I can lend you Eric's, but promise you won't break it or do anything weird to it
;-)
>
> > Another strange thing is... I see lots of duplicated keystrokes --
> > like type "pavel" but machine understands "paavel". But it only seems
> > to happen when I'm _not_ trying to debug it?!
>
> That seems to be side effect of machine under load (it has gpio keyboard).
Yea ... it's that polled para-keyboard I guess.
>
> > (
> > So... just because something needs 5V does not mean you should charge
> > it from USB.
> >
> > Yes, I'm talking about zaurus. I noticed that it crashed rather
> > quickly when connected to USB power. (For example in tar/rm test).
> > So I took multimeter, and there was 4.15..4.5V on USB :-(.
> >
> > With power from USB extension cable, it crashes in <5 minutes. It
> > seems to toggle charger a lot, as voltage on the cable is only
> > 4.2..4.5V. I guess it is software problem in the charging code.
> > )
>
> The zaurus actually is AFAIK unable to run from battery when connected to
> the external power, so weak power line may explain some of the strange
> behaviour.
As for the charging code, do we even have anything even remotely resembling that
?
next prev parent reply other threads:[~2011-04-16 4:04 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-15 21:18 Zaurus CF tests -- ok Pavel Machek
2011-04-15 21:18 ` Pavel Machek
2011-04-15 21:38 ` Cyril Hrubis
2011-04-15 21:38 ` Cyril Hrubis
2011-04-16 4:04 ` Marek Vasut [this message]
2011-04-16 4:04 ` Marek Vasut
2011-04-16 7:41 ` Pavel Machek
2011-04-16 7:41 ` Pavel Machek
2011-05-15 12:26 ` Marek Vasut
2011-05-15 12:26 ` Marek Vasut
2011-05-15 14:31 ` Cyril Hrubis
2011-05-15 14:31 ` Cyril Hrubis
2011-05-15 15:51 ` Marek Vasut
2011-05-15 15:51 ` Marek Vasut
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