jiaqizho opened a new pull request, #1228:
URL: https://github.com/apache/cloudberry/pull/1228
The core:
- 0 0x00007f7c24dee387 in raise () from /lib64/libc.so.6
- 1 0x00007f7c24defa78 in abort () from /lib64/libc.so.6
- 2 0x00007f7c252238e9 in __gnu_cxx::__verbose_terminate_handler() [clone
.cold] () from /workspace/dist/database/lib/libstdc++.so.6
- 3 0x00007f7c2522f10a in __cxxabiv1::__terminate(void (*)()) () from
/workspace/dist/database/lib/libstdc++.so.6
- 4 0x00007f7c2522f175 in std::terminate() () from
/workspace/dist/database/lib/libstdc++.so.6
- 5 0x00007f7c2522fe93 in __cxa_pure_virtual () from
/workspace/dist/database/lib/libstdc++.so.6
- 6 0x00005577fe3eb0b4 in gpos::CWStringBase::IsValid (this=0x5578034ff1c0
<gpmd::CMDTypeOidGPDB::m_str>) at CWStringBase.cpp:50
- 7 0x00005577fe41c23d in gpmd::CMDName::~CMDName (this=0x5578034ff1e0
<gpmd::CMDTypeOidGPDB::m_mdname>, __in_chrg=<optimized out>) at CMDName.cpp:78
- 8 0x00007f7c24df1ce9 in __run_exit_handlers () from /lib64/libc.so.6
- 9 0x00007f7c24df1d37 in exit () from /lib64/libc.so.6
- 10 0x00005577fe089979 in proc_exit (code=0) at ipc.c:157
- 11 0x00005577fe0d4b2d in PostgresMain (argc=14, argv=0x5578078d8480,
dbname=0x55780793a930 "template1", username=0x5578078dd7b0 "gpadmin") at
postgres.c:6152
- 12 0x00005577fde4eb05 in main (argc=14, argv=0x5578078d8480) at main.c:263
In the #6 the object(`class CWStringConst`) is a static variable in the
`class CMDName`, and the core happend when we try to call the `~CMDName` to
destory the global variable.
```
CWStringConst CMDTypeOidGPDB::m_str = CWStringConst(GPOS_WSZ_LIT("oid"));
CMDName CMDTypeOidGPDB::m_mdname(&m_str);
```
The reason for this core is that `m_name` has been destructed before its own
class CMDName. I added a variable to prove:
```
CWStringConst::~CWStringConst()
{
if (m_owns_memory && m_w_str_buffer != &m_empty_wcstr)
{
GPOS_DELETE_ARRAY(m_w_str_buffer);
}
is_invalid = true; // once ~CWStringConst() call, current is_invalid
will be true, which default is false.
}
```
And gdb the core
```
(gdb) f 6
(gdb) p ((CWStringConst *)this)->is_invalid
$4 = true // m_name is invalid
```
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Fixes #ISSUE_Number
### What does this PR do?
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### Type of Change
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