[ scummvm-Bugs-2609755 ] GUI: Crash on exit

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Bugs item #2609755, was opened at 2009-02-17 19:07
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Category: GUI
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Johannes Schickel (lordhoto)
Assigned to: Vicent Marti (tanoku)
Summary: GUI: Crash on exit

Initial Comment:
Hi,

I had an (sadly not reproduce able) problem with our GUI code. When I exited (from within kyra, but I tried to check valgrind, no invalid memory writes when I played through the same part of the game again) I got an segmentation fault. Here is the backtrace:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fb0a11426f0 (LWP 9744)]
0x00007fb09f060055 in free () from /lib/libc.so.6
(gdb) bt
#0  0x00007fb09f060055 in free () from /lib/libc.so.6
#1  0x0000000000ad951b in Common::String::decRefCount (this=0x2371ca8, oldRefCount=0x1fbf810) at common/str.cpp:217
#2  0x0000000000ad95db in ~String (this=0x2371ca8) at common/str.cpp:119
#3  0x00000000005553c2 in ~Node (this=0x2371ca8) at ./common/hashmap.h:72
#4  0x0000000000555745 in Common::ObjectPool<Common::HashMap<Common::String, int, Common::Hash<Common::String>, Common::EqualTo<Common::String> >::Node, 10ul>::deleteChunk (this=0x2371b30, ptr=0x2371ca8) at ./common/memorypool.h:94
#5  0x0000000000555771 in Common::HashMap<Common::String, int, Common::Hash<Common::String>, Common::EqualTo<Common::String> >::freeNode (
    this=0x2371b30, node=0x2371ca8) at ./common/hashmap.h:101
#6  0x0000000000a1fe2f in Common::HashMap<Common::String, int, Common::Hash<Common::String>, Common::EqualTo<Common::String> >::clear (
    this=0x2371b30, shrinkArray=false) at ./common/hashmap.h:339
#7  0x0000000000a1e890 in GUI::ThemeEval::reset (this=0x2371b30) at gui/ThemeEval.cpp:44
#8  0x0000000000a198eb in GUI::ThemeEngine::unloadTheme (this=0x20728d0) at gui/ThemeEngine.cpp:654
#9  0x0000000000a1a604 in ~ThemeEngine (this=0x20728d0) at gui/ThemeEngine.cpp:296
#10 0x00000000009f78ff in ~GuiManager (this=0x2072030) at gui/GuiManager.cpp:79
#11 0x000000000040e9c0 in Common::Singleton<GUI::GuiManager>::destroyInstance () at ./common/singleton.h:61
#12 0x000000000040e9d6 in Common::Singleton<GUI::GuiManager>::destroy () at ./common/singleton.h:81
#13 0x000000000040e7f1 in scummvm_main (argc=4, argv=0x7fffa9168038) at base/main.cpp:354
#14 0x000000000040b1f7 in main (argc=4, argv=0x7fffa9168038) at backends/platform/sdl/main.cpp:108

I sadly have the fear that it might be related to somehow corrupted memory. As a side note I was also able to crash the GUI when exiting the debugger today, but sadly I don't have any backtrace for that one.

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