Top Posting!
I found the culprit. FAST_MBUS breaks it. After 48 hours of runs,
enabling fast_mbus immediately breaks it even after boot.
Jens and Emilio hinted that the 3.4 driver reads the FEX file for the
voltage. So the higher freq. runs at a lower voltage and that may cause it.
So I'll run without fast mbus for now, and it's stable again. Rock Solid
if I may.
Sorry for all the noise :(
Olliver
On 03/30/2014 08:56 PM, Olliver Schinagl wrote:
On 03/30/2014 05:59 PM, Ian Campbell wrote:
On Sun, 2014-03-30 at 14:26 +0200, Olliver Schinagl wrote:
That said the sorts of random crashed you've been posting sound a lot
like either a DRAM issue or overheating. Either of which could be down
to u-boot setting up something wrong or bad hardware I suppose.
Overheating, maybe. It feels hottish to the touch, but can hold a finger
on it without any problem whatsoever. Not close to the pain point. So I
estimate < 50 C? Shouldn't be reason to be concerned imo.
Doesn't sound like it.
Power might be the problem, i see the input voltage under heavy load
drop to 4.65 Volts @ 0.9 amps
Could be that.
Have you checked the checksum of the tarball you are extracting and
tried unpacking it on a known good system?
The sha1sum matches, calculated on the board, so that's good. xz -d
completed successfully!
tar xvf fails however, with a big ass 5 page long oops.
I'd have thought that xz -d would be *far* more CPU intensive and
therefore liable to cause issues than tar xvf. If you were using
spinning rust rather than an SSD then I would be inclined to suspect the
power draw, but with you using an SSD I'm just not sure.
I agree! though even a heavily stressed CPU doesn't change power draw
hugely. Ssvb and I did some power tests a few months ago on the list.
Additionally! I should mention, my CT has a battery backup which should
be near full charge. a 1220 mAh battery, so even if the power supply
should drop to low or something, Wens assured me that the battery would
take over and no problem should be caused by bad power. Unless the
battery has run down of course, which I highly doubt, especially seeing
the constant current draw over USB.
So for now, I just hope it's not user error ...
Olliver
Ian.
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