[MLton-user] MLton-20051202 crashes on Cygwin

Ville Laurikari ville@laurikari.net
Sat, 13 May 2006 17:20:45 +0300


Hi,

For me, any attempt to run MLton on Cygwin (latest stable) ends up in
a crash with "Illegal instruction".  

It would seem that the crash happens at some early stage, probably
during some initialization phase.   The actual crash seems to be
happening in GMP code.

Has anyone else seen this?

Here's what I can think of showing about the crash:

$ gdb /usr/lib/mlton/mlton-compile 
GNU gdb 6.3.50_2004-12-28-cvs (cygwin-special)
Copyright 2004 Free Software Foundation, Inc.
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you are
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Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for
details.
This GDB was configured as "i686-pc-cygwin"...
(gdb) run
Starting program: /usr/lib/mlton/mlton-compile 

Program received signal SIGILL, Illegal instruction.
__gmpn_mul_1 () at tmp-mul_1.s:88
88      tmp-mul_1.s: No such file or directory.
        in tmp-mul_1.s
Current language:  auto; currently asm
(gdb) bt
#0  __gmpn_mul_1 () at tmp-mul_1.s:88
#1  0x00d35d64 in __gmpn_set_str (rp=0xa, str=0xffffffff <Address 0xffffffff out of bounds>, 
    str_len=2089917163, base=2089917344) at set_str.c:177
#2  0x00000006 in ?? ()
#3  0x19870000 in ?? ()
#4  0x00f1a1d0 in localInt64 ()
#5  0x00d356c0 in mmapAnon ()
#6  0x00000000 in ?? () from 
(gdb) info locals
No locals.
(gdb) up 1
#1  0x00d35d64 in __gmpn_set_str (rp=0xa, str=0xffffffff <Address 0xffffffff out of bounds>, 
    str_len=2089917163, base=2089917344) at set_str.c:177
177     set_str.c: No such file or directory.
        in set_str.c
Current language:  auto; currently c
(gdb) info locals
i = 10
j = 1
cy_limb = 426704916
size = 15835600
big_base = 10
chars_per_limb = 9
res_digit = 426704912
str = (const unsigned char *) 0x196f0022 ""
base = 10
(gdb) quit
The program is running.  Exit anyway? (y or n) y

ville@redundant ~
$ cat /proc/cpuinfo 
processor       : 0
vendor_id       : AuthenticAMD
type            : primary processor
cpu family      : 6
model           : 8
model name      : AMD Athlon(tm) XP 2700+
stepping        : 1
brand id        : 0
cpu count       : 0
apic id         : 0
cpu MHz         : 2171
fpu             : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow


-- 
http://www.iki.fi/vl/