En/na Bernd Mueller ha escrit:
with "linux hang hard" you mean the machine is completely frozen?
Yes. I even left it on a text console to see if there was an Oops or
something, but it just froze.
Does
not react on ping and so on?
Nothing, not even to the magic sysreq key.
Could it be a hardware problem?
I doubt it: it happens on four machines (five if counting my test rig).
They're all the same and the problem manifests in all of them since I
installed the new version of the program.
Oh, and I tested on a different machine too (though it's even more
underpowered than the epia, but I have that class of machine working
reliably with a similar, if not quite the same, kind of program, and
with gtk2 and lazarus from around 1 year ago).
Maybe the
BIOS settings are to "aggressive".
I tried many different bios settings. Knowing that there's a problem
with dma on this board, I even updated the bios. Alas, it made no
difference (not that I was expecting one: this system doesn't use
neither the disk nor the network).
Maybe there is a hardware memory
problem, which is only popping up when you use the modern (perhaps more
memory consuming) fpc/lazarus/gtk environment.
Memory and cpu consumption is just about the same.
I used memtest to check for memory errors.
What's more important, is that the memory usage (VSZ/RSS as reported by
ps) of the program is constant once it has reached a plateau value, so
apparently it shouldn't be allocating more memory.
Note that the freeze happens at a random time: it could be 10 minutes,
it could be a week (hence, I'm not sure that reverting the development
environment actually cured the issue, I need to leave it running for at
least a couple of week).
It always seems to happen doing the same thing though: (i.e., I display
various fields on the screen, when reading new data I display dashes in
the fields and "Reading" at the bottom of the page, and the crash always
happens at that time).
Unfortunately I think I covered all my bases :-(
Bye
--
Luca Olivetti
Wetron Automatización S.A. http://www.wetron.es/
Tel. +34 93 5883004 (Ext.133) Fax +34 93 5883007
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