[error] received signal SIGSEGV, Segmentation fault

[Yona-TYT]

I got an error while porting the tutorial scenario to pak64.

To replicate just build the stretch of road.
Script -> https://www.mediafire.com/file/h26k8u91c7uiys7/tutorial_pak64.zip/file
Savegame -> https://www.mediafire.com/file/gq64hv5hg6kau5x/tutorial_pak64-1.sve/file
It doesn't seem to be a script error, but if it is I am going to need your help to find it since simutrans stops working without displaying an error window.


This is what gdb shows:

Code Select Expand

Thread 1 "sim" received signal SIGSEGV, Segmentation fault.
script_api::param<signed char>::push (vm=vm@entry=0x55555b19b460,
    v=<error reading variable>) at script/api_param.cc:139
139            sq_pushinteger(vm, v);
(gdb) where
#0  script_api::param<signed char>::push (vm=vm@entry=0x55555b19b460,
    v=<error reading variable>) at script/api_param.cc:139
#1  0x0000555555835ab6 in script_api::set_slot<signed char> (index=1,
    value=<optimized out>, name=0x555555993223 "z", vm=0x55555b19b460)
    at script/api/../api_param.h:132
#2  exp_obj_pos_constructor (vm=0x55555b19b460)
    at script/api/api_map_objects.cc:131
#3  0x00005555559624bd in SQVM::CallNative (this=this@entry=0x55555b19b460,
    nclosure=0x55555b03f3d0, nargs=<optimized out>, newbase=newbase@entry=15,
    retval=..., suspend=@0x7fffffffae8f: false)
    at squirrel/squirrel/sqvm.cc:1216
#4  0x0000555555963e4f in SQVM::Execute (this=0x55555b19b460, closure=...,
    nargs=<optimized out>, stackbase=<optimized out>, outres=...,
    raiseerror=<optimized out>, et=<optimized out>,
    can_suspend=<optimized out>) at squirrel/squirrel/sqvm.cc:811
#5  0x00005555559669e2 in SQVM::Call (this=this@entry=0x55555b19b460,
    closure=..., nparams=nparams@entry=2, stackbase=stackbase@entry=2,
    outres=..., raiseerror=raiseerror@entry=1, can_suspend=1)
    at squirrel/squirrel/sqvm.cc:1585
#6  0x0000555555936b76 in sq_call (v=v@entry=0x55555b19b460,
    params=params@entry=2, retval=retval@entry=1,
    raiseerror=raiseerror@entry=1) at squirrel/squirrel/sqapi.cc:1179
#7  0x000055555592bbb7 in sq_call_restricted (v=v@entry=0x55555b19b460,

[Andarix]

please test r9135

for linux found here

[Yona-TYT]

please test r9135 for linux found here

I have compiled the latest revision from the trunk, but the problem is still there.

Code Select Expand


Thread 1 "sim" received signal SIGSEGV, Segmentation fault.
script_api::param<signed char>::push (vm=vm@entry=0x5555599bc8e0,
    v=<error reading variable>) at script/api_param.cc:139
139            sq_pushinteger(vm, v);
(gdb) where
#0  script_api::param<signed char>::push (vm=vm@entry=0x5555599bc8e0,
    v=<error reading variable>) at script/api_param.cc:139
#1  0x000055555588034a in script_api::set_slot<signed char> (index=1,
    value=<optimized out>, name=0x555555a15563 "z", vm=0x5555599bc8e0)
    at script/api/../api_param.h:132
#2  exp_obj_pos_constructor (vm=0x5555599bc8e0)
    at script/api/api_map_objects.cc:131
#3  0x00005555559dddcb in SQVM::CallNative (this=0x5555599bc8e0,
    nclosure=0x55555b9385e0, nargs=<optimized out>, newbase=<optimized out>,
    retval=..., suspend=@0x7fffffffad9f: false)
    at squirrel/squirrel/sqvm.cc:1216
#4  0x00005555559e0e61 in SQVM::Execute (this=0x5555599bc8e0, closure=...,
    nargs=<optimized out>, stackbase=<optimized out>, outres=...,
    raiseerror=1, et=SQVM::ET_CALL, can_suspend=<optimized out>)
    at squirrel/squirrel/sqvm.cc:811
#5  0x00005555559e1d22 in SQVM::Call (this=this@entry=0x5555599bc8e0,
    closure=..., nparams=nparams@entry=2, stackbase=stackbase@entry=2,
    outres=..., raiseerror=raiseerror@entry=1, can_suspend=1)
    at squirrel/squirrel/sqvm.cc:1585
#6  0x00005555559ad6d0 in sq_call (v=v@entry=0x5555599bc8e0, params=2,
    retval=1, raiseerror=raiseerror@entry=1) at squirrel/squirrel/sqapi.cc:1179
#7  0x000055555599cfb8 in sq_call_restricted (v=v@entry=0x5555599bc8e0,
    params=<optimized out>, retval=<optimized out>,
---Type <return> to continue, or q <return> to quit---


[Dwachs]

should be fixed in r9136. Thank you for the report.

[Yona-TYT]

It works fine now. :p