libgc crash
We are getting a core dump on our application. The core stack shows:
(dbx) where -q
current thread: t@1
=>[1] __sigprocmask()
[2] _resetsig()
[3] _sigon()
[4] _thrp_kill()
[5] raise()
[6] abort()
[7] gcDefaultAbort()
[8] gcInternalAbort()
[9] gcGetCleanMemory()
[10] gcExpandHeapInner()
[11] gcCollectOrExpand()
[12] gcAllocobj()
[13] gcGenericMallocInner()
[14] gcGenericMalloc()
[15] malloc()
[16] operator new(unsigned)
............................................
...........................................
The versions are:
version libgc.so
version of "libgc.so":Sun C++ 5.5 2003/03/12
CC -V
CC: Sun C++ 5.5 2003/03/12
uname -a
SunOS cmrdev1 5.8 Generic_117350-27 sun4u sparc SUNW,Sun-Fire-880
There is plenty of memory on the system,and the process had lot of room to grow when it crashed.
The executable was built by adding -lgc to the link line.
What could be the reason?
Thanks.
# 1
The crash might be due to any of the reasons that cause a memory allocator to crash:
- use of an invalid or uninitialized pointer
- deleting an object more than once
- deleting a pointer value that was not obtained from the allocator
- using an object after it has been deleted or gone out of scope
- failure to guard the use of shared data in a multi-threaded program
Does the program crash if you don't link it with libgc? If not, perhaps the problem is a bug in libgc. We would need a test case that demonstrates the problem to determine whether that is the case.
You are using an old, unpatched compiler. Another possible cause is a bug in the compiler or one of its runtime libraries. Try installing all of the latest patches, which you can get here:
http://developers.sun.com/prodtech/cc/downloads/patches/index.jsp
If possible, I suggest upgrading to Sun Studio 11, which is free. You can get it here:
http://developers.sun.com/sunstudio/
