[M3devel] more crashers

[Jay K]

Don't worry because of this. This was changing folks from M3Config to MxConfig plus that my config doesn't go out of its way to be compatible with code that doesn't predefine stuff -- ie: mxconfig clients other than cm3.
The "normal" config files have been adapted to be compatible.
 
 
 - Jay


----------------------------------------
> From: hosking at cs.purdue.edu
> To: jay.krell at cornell.edu
> Date: Sun, 16 Aug 2009 19:10:15 -0400
> CC: m3devel at elegosoft.com
> Subject: Re: [M3devel] more crashers
>
> So now I am worried about the recent changes to Text...
>
> On 16 Aug 2009, at 15:33, Jay K wrote:
>
>>
>> Could be. I've also seen it on PPC_DARWIN a while ago. I only recall
>> seeing it on sparc and ppc.
>> It doesn't always occur.
>>
>>
>> Here is the m3browser crash on a system that can be debugged.
>> See why I want the full paths in the debug info?
>>
>>
>> C:\Users\jay\Desktop>\cygwin\bin\ssh xobsd.
>> $ cd /cm3
>> $ cd bin
>> $ export DISPLAY=192.168.1.120:0.0
>> $ gdb ./m3browser
>> GNU gdb 6.3
>> This GDB was configured as "i386-unknown-openbsd4.5"...
>> (gdb) r
>> Starting program: /home/jay/cm3/bin/m3browser
>> Program received signal SIGSEGV, Segmentation fault.
>> [Switching to process 31063, thread 0x7eafe800]
>> 0x01592fd4 in Text__Length (M3_Bd56fi_t=0x0) at ../src/text/Text.m3:16
>> 16 t.get_info (i);
>> (gdb) bt
>> #0 0x01592fd4 in Text__Length (M3_Bd56fi_t=0x0) at ../src/text/
>> Text.m3:16
>> #1 0x09fd9464 in ID__Add (M3_Bd56fi_x=0x0) at ../src/ID.m3:48
>> #2 0x1c01e644 in Main_M3 (M3_AcxOUs_mode=1) at ../src/Main.m3:37
>> #3 0x0156f1bc in RTLinker__RunMainBody (M3_DjPxE3_m=0x3c003ec0)
>> at ../src/runtime/common/RTLinker.m3:399
>> #4 0x0156e576 in RTLinker__AddUnitI (M3_DjPxE3_m=0x3c003ec0)
>> at ../src/runtime/common/RTLinker.m3:113
>> #5 0x0156e604 in RTLinker__AddUnit (M3_DjPxE5_b=0x1c01e54d)
>> at ../src/runtime/common/RTLinker.m3:122
>> #6 0x1c004676 in main (argc=1, argv=0xcfbf6a3c, envp=0xcfbf6a44)
>> at _m3main.mc:4
>>
>>
>> - Jay
>>
>>
>> ________________________________
>>> From: hosking at cs.purdue.edu
>>> To: jay.krell at cornell.edu
>>> Date: Sun, 16 Aug 2009 15:26:49 -0400
>>> CC: m3devel at elegosoft.com
>>> Subject: Re: [M3devel] more crashers
>>>
>>> Could this be endianness-related?
>>>
>>> On 16 Aug 2009, at 15:21, Jay K wrote:
>>>
>>>
>>> I see the assertion failure on PPC_LINUX too.
>>> I tried VAR defaultStackSize := 1024 * 1024; (not sure why there
>>> was any suspicion of stack size).
>>>
>>>
>>> Debugging doesn't work PPC_LINUX.
>>>
>>>
>>> jay at plin:/cm3/bin$ gdb ./cm3
>>> GNU gdb 6.8-debian
>>> Copyright (C) 2008 Free Software Foundation, Inc.
>>> License GPLv3+: GNU GPL version 3 or later
>>> This is free software: you are free to change and redistribute it.
>>> There is NO WARRANTY, to the extent permitted by law. Type "show
>>> copying"
>>> and "show warranty" for details.
>>> This GDB was configured as "powerpc-linux-gnu"...
>>> break ma(gdb) break main
>>> Breakpoint 1 at 0x86fc4: file _m3main.mc, line 2.
>>> (gdb) r
>>> Starting program: /home/jay/cm3/bin/cm3
>>> Warning:
>>> Cannot insert breakpoint 1.
>>> Error accessing memory address 0x86fc4: Input/output error.
>>>
>>>
>>> No problem with C:
>>>
>>>
>>> jay at plin:/cm3/bin$ echo "main(){}"> 1.c
>>> jay at plin:/cm3/bin$ gcc -g 1.c
>>> jay at plin:/cm3/bin$ gdb ./a.out
>>> GNU gdb 6.8-debian
>>> Copyright (C) 2008 Free Software Foundation, Inc.
>>> License GPLv3+: GNU GPL version 3 or later
>>> This is free software: you are free to change and redistribute it.
>>> There is NO WARRANTY, to the extent permitted by law. Type "show
>>> copying"
>>> and "show warranty" for details.
>>> This GDB was configured as "powerpc-linux-gnu"...
>>> (gdb) break main
>>> Breakpoint 1 at 0x10000448: file 1.c, line 1.
>>> (gdb) r
>>> Starting program: /home/jay/cm3/bin/a.out
>>> Breakpoint 1, main () at 1.c:1
>>> 1 main(){}
>>> (gdb)
>>>
>>>
>>> jay at plin:/cm3/bin$ gcc -gstabs+ 1.c
>>> jay at plin:/cm3/bin$ gdb ./a.out
>>> GNU gdb 6.8-debian
>>> Copyright (C) 2008 Free Software Foundation, Inc.
>>> License GPLv3+: GNU GPL version 3 or later
>>> This is free software: you are free to change and redistribute it.
>>> There is NO WARRANTY, to the extent permitted by law. Type "show
>>> copying"
>>> and "show warranty" for details.
>>> This GDB was configured as "powerpc-linux-gnu"...
>>> (gdb) break main
>>> Breakpoint 1 at 0x10000448: file 1.c, line 1.
>>> (gdb) r
>>> Starting program: /home/jay/cm3/bin/a.out
>>> Breakpoint 1, main () at 1.c:1
>>> 1 main(){}
>>>
>>>
>>> jay at plin:/cm3/bin$ gcc -gstabs 1.c
>>> jay at plin:/cm3/bin$ gdb ./a.out
>>> GNU gdb 6.8-debian
>>> Copyright (C) 2008 Free Software Foundation, Inc.
>>> License GPLv3+: GNU GPL version 3 or later
>>> This is free software: you are free to change and redistribute it.
>>> There is NO WARRANTY, to the extent permitted by law. Type "show
>>> copying"
>>> and "show warranty" for details.
>>> This GDB was configured as "powerpc-linux-gnu"...
>>> (gdb) break main
>>> Breakpoint 1 at 0x10000448: file 1.c, line 1.
>>> (gdb) r
>>> Starting program: /home/jay/cm3/bin/a.out
>>> Breakpoint 1, main () at 1.c:1
>>> 1 main(){}
>>> (gdb)
>>>
>>>
>>> - Jay
>>>
>>>
>>> ----------------------------------------
>>> From: jay.krell at cornell.edu
>>> To: m3devel at elegosoft.com
>>> Subject: more crashers
>>> Date: Sun, 16 Aug 2009 10:06:15 +0000
>>>
>>>
>>> This is head on SOLgnu:
>>> I'll try another and debug and see if fix is easy.
>>>
>>> -bash-3.00$ ./m3browser
>>>
>>> ***
>>> *** runtime error:
>>> *** Segmentation violation - possible attempt to dereference NIL
>>> *** pc = 0xfe484f04 = String16_M3 + 0xe0 in ../src/text/String16.m3
>>> ***
>>>
>>> -bash-3.00$ ./visobliq
>>> Internal Obliq interpreter installed...
>>> Establishing 'templates'
>>> (Created frame 'templates')
>>> let
>>> Templates =
>>> {boolean=> ... ,
>>> browser=> ... ,
>>> button=> ... ,
>>> choice=> ... ,
>>> filebrowser=> ... ,
>>> form=> ... ,
>>> frame=> ... ,
>>> hscroll=> ... ,
>>> menu=> ... ,
>>> numeric=> ... ,
>>> text=> ... ,
>>> textedit=> ... ,
>>> typein=> ... ,
>>> video=> ... ,
>>> vscroll=> ... }
>>> Establishing 'vowidgets'
>>> (Created frame 'vowidgets')
>>> ok
>>> Establishing 'vocheckpt'
>>> (Created frame 'vocheckpt')
>>> ok
>>> Establishing 'volib'
>>> (Created frame 'volib')
>>> Segmentation Fault (core dumped)
>>> -bash-3.00$
>>>
>>>
>