[solved] 3.10 linux RelDebug/Release Build - Strange memory corruption

[ohmtal]

In Debug everything works fine - but when I switch to RelWithDebug or Release it get a Segmentation fault:
 

Breakpoint 6, _StringTable::insert (this=0x555557c598b0, _val=_val@entry=0x5555572263ab "TheoraTextureObject", caseSens=caseSens@entry=false) at /opt/OGE3D/Engine/source/core/stringTable.cpp:135
135    walk = &buckets[key % numBuckets];
1: val = 0x5555572263ab "TheoraTextureObject"
2: walk = <optimized out>
3: key = 36662630
4: numBuckets = 459
(gdb) cont
Continuing.

Breakpoint 6, _StringTable::insert (this=0x555557c598b0, _val=<optimized out>, caseSens=caseSens@entry=false) at /opt/OGE3D/Engine/source/core/stringTable.cpp:135
135    walk = &buckets[key % numBuckets];
1: val = 0x555557228c7b "TypeGFXAdapterType"
2: walk = <optimized out>
3: key = 19067645
4: numBuckets = 1819307369

From one step to another the Stringtable itemCount and numBuckets raise abnormal. I also removed Theora from build and it still happen before TypeGFXAdapterType.
I also tried a record/reverse-cont but then the count is bad in reverse too.

With stepping after the last good insert i nailed it down to:

145 in ../csu/libc-start.c
1: itemCount = <error: current stack frame does not contain a variable named `this'>
3: _gStringTable.itemCount = 309
(gdb) next
144 in ../csu/libc-start.c
1: itemCount = <error: current stack frame does not contain a variable named `this'>
3: _gStringTable.itemCount = 1886999653

Not really helps me to get the reason for the segfault / memory corruption. 

Btw. T3D 4.current runs fine.

 

EDIT:  It works fine on FreeBSD 13.1 (not a linux) - on the same machine using ubuntu 22.04LTS it makes the segfault.

 

 

Any hints?

 

Edited March 20, 2023 by ohmtal

[Azaezel]

Nothing particularly jumps out at me in https://github.com/TorqueGameEngines/Torque3D/commits/c999baf7ed0a24dab4d4508af6cc06ceebdb220e/Engine/source/core/stringTable.cpp , but thanks for the precise report. Will review further. 

[Azaezel]

Forwarding the suggestion to try incorporating https://github.com/TorqueGameEngines/Torque3D/pull/812

[ohmtal]

@Azaezelyou saved my day

Amazing - it lives ! I replaced the str.cpp/h with the current version and it works .