invalid memory address or nil pointer dereference / too many open files about 3 HOT 8 CLOSED

could you please attach the script file that generates the error?

from 3.

The log starts with the commands, but here it is:

setGridSize(512, 512, 2)
setCellSize(20e-9, 20e-9, 20e-9)

DefRegion(0, Layer(0))
DefRegion(1, Layer(1))

Aex.SetRegion(0, 4E-12)
Msat.SetRegion(0, 1.6E+5)
Aex.SetRegion(1, 1.3E-11)
Msat.SetRegion(1, 8.6E+5)

ext_ScaleExchange(0,1,0)

// hysteresis sweep
Bmax := 20e-3
dB := 0.1e-3
tableadd(B_ext)

// initial mag
m = Uniform(1,0,0)

// sweep down
for B := Bmax; B >= -Bmax; B-=dB{
B_ext = vector(B, 0, 0)
relax()
tableSave()
}

// sweep up
for B := -Bmax; B <= Bmax; B+=dB{
B_ext = vector(B, 0, 0)
relax()
tableSave()
}

from 3.

Thanks. Are you running with web GUI opened?

-Mykola

On Thu, Feb 12, 2015 at 1:23 PM, enpapesz [email protected]
wrote:

The log starts with the commands, but here it is:

setGridSize(512, 512, 2)
setCellSize(20e-9, 20e-9, 20e-9)

DefRegion(0, Layer(0))
DefRegion(1, Layer(1))

Aex.SetRegion(0, 4E-12)
Msat.SetRegion(0, 1.6E+5)
Aex.SetRegion(1, 1.3E-11)
Msat.SetRegion(1, 8.6E+5)

ext_ScaleExchange(0,1,0)

// hysteresis sweep
Bmax := 20e-3
dB := 0.1e-3
tableadd(B_ext)

// initial mag
m = Uniform(1,0,0)

// sweep down
for B := Bmax; B >= -Bmax; B-=dB{
B_ext = vector(B, 0, 0)
relax()
tableSave()
}

// sweep up
for B := -Bmax; B <= Bmax; B+=dB{
B_ext = vector(B, 0, 0)
relax()
tableSave()
}

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from 3.

Yes, actually not on the localhost, but over the internet, using vpn. And I use Gnuplot in the GUI to show the hysteresis curve also.

from 3.

Bug in servePlot? Probably an error on acquiring stdout pipe? Maybe there should be some error checking code there after all.

from 3.

Which mumax version? A while ago a httpfs bug was fixed, which my have indirectly caused this crash. I cannot reproduce the crash with mumax3.7alpha, but of course with a GUI it can be hard to reproduce certain behaviour.

Nevertheless, @syockit : yes, error checking is needed there.

from 3.

The version number is in the first row of the log:
running ~/Desktop/mumax3.6.2_linux_x64/mumax3-cuda6.0
The crash only happened to me after long running (several hours or a day) and running the same again sometimes finished fine.

from 3.

6f888a8 may fix it, but I'm not sure since I have been unable to reproduce your problem.

from 3.