erl -hybrid segfaults

Ulf Wiger (AL/EAB) <>
Thu Oct 28 10:53:50 CEST 2004


I modified my ring benchmark slightly in order to ramp up on message size
rather than number of processes (scaling up on processes is so boring ---
I get constant cost until my machine starts swapping.)

I thought I'd see if 'erl -hybrid' could do well. It did -- for the first two 
iterations, but then it segfaulted.

I'm running this on my Solaris 8 box. Can it be reproduced on other environments?
(I've enclosed my benchmark program.)

Regards,
Uffe


wsb221> erl 
Erlang (BEAM) emulator version 5.4 [source] [hipe]

Eshell V5.4  (abort with ^G)
1> ring3:ramp("ring3-n1000-0-10000-1.txt", 1000, 0, 10000, 1000).
ok
2> 
BREAK: (a)bort (c)ontinue (p)roc info (i)nfo (l)oaded
       (v)ersion (k)ill (D)b-tables (d)istribution
a
wsb221> m ring3-n1000-0-10000-1.txt 
1000    24.0020 2.88700
1000    29.6320 29.5700
1000    21.4460 49.2600
1000    21.2920 63.5010
1000    22.2270 83.1260
1000    21.9960 72.9990
1000    21.9450 103.925
1000    32.9790 125.519
1000    23.2280 126.375
1000    22.4310 113.114
1000    22.2540 145.607

wsb221> erl -hybrid
Erlang (BEAM) emulator version 5.4 [source] [hipe] [hybrid heap]

Eshell V5.4  (abort with ^G)
1> ring3:ramp("ring3-n1000-0-10000-1-hybrid.txt", 1000, 0, 10000, 1000).
Segmentation fault
wsb221> cat ring3-n1000-0-10000-1-hybrid.txt 
1000    25.8390 3.14900
1000    21.8420 3.02700

wsb221>       erl -shared
Erlang (BEAM) emulator version 5.4 [source] [hipe] [shared heap]

Eshell V5.4  (abort with ^G)
1> ring3:ramp("ring3-n1000-0-10000-1-shared.txt", 1000, 0, 10000, 1000).
ok
2> 
BREAK: (a)bort (c)ontinue (p)roc info (i)nfo (l)oaded
       (v)ersion (k)ill (D)b-tables (d)istribution
a

wsb221> cat ring3-n1000-0-10000-1-shared.txt
1000    21.2830 2.23100
1000    21.7570 2.34600
1000    17.9920 2.07800
1000    14.1350 3.90700
1000    14.5560 2.09600
1000    15.7610 2.10500
1000    16.6510 2.36300
1000    16.6860 2.07400
1000    14.9720 2.10000
1000    17.1110 2.09700
1000    17.7690 2.12800
wsb221>

 <<ring3.erl>> 
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