Re: [Zaurus-devel] Zaurus CF tests -- ok

2011-05-15 Thread Cyril Hrubis
Hi!
 Backtrace from QEMU ... I think this is what Cyril observed. But heck, it 
 happens in QEMU too ;-)

Yes, that is pretty much it.

It happens randomly, eg. adding printk() line into kernel code (somewhere in
mmc stack). Or sometimes crashes in the pccard initalization when two cards are
inserted at the boot time.

-- 
metan

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Re: [Zaurus-devel] Zaurus CF tests -- ok

2011-05-15 Thread Marek Vasut
 Hi!
  Backtrace from QEMU ... I think this is what Cyril observed. But heck,
  it   happens in QEMU too ;-)
 
 Yes, that is pretty much it.
 
 It happens randomly, eg. adding printk() line into kernel code
 (somewhere in mmc stack). Or sometimes crashes in the pccard
 initalization when two cards are inserted at the boot time.


It happens randomly in qemu too.
 
 -- 
 metan


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Re: [Zaurus-devel] Zaurus CF tests -- ok

2011-04-15 Thread Cyril Hrubis
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...

 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).

 (
 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.

-- 
metan

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