g++ _int_free () from /lib/tls/libc.so.6: segmentation fault

[kalyan.abbaraju]

Hi,

Can anybody identify a cause or suggest a solution for this
segmentation fault.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1218629504 (LWP 4935)]
0x051b2071 in _int_free () from /lib/tls/libc.so.6
(gdb) bt
#0 0x051b2071 in _int_free () from /lib/tls/libc.so.6
#1 0x051b1018 in free () from /lib/tls/libc.so.6
#2 0x009a91f3 in operator delete () from /usr/lib/libstdc++.so.5
#3 0x001831da in mytest_c::CloseDBInterface (this=0xbffeb6b0) at
mytestmx.cc:1985
#4 0x0017d44c in ~mytest_c (this=0xbffeb6b0) at mytestmx.cc:159
#5 0x080553fa in case001 () at mytestmx.cc:151
#6 0x080556b4 in main () at mytestmx.cc:128

Thanks in advance

Regards
Kalyan

 

[Torsten Mueller]

[Switching to Thread -1218629504 (LWP 4935)]
0x051b2071 in _int_free () from /lib/tls/libc.so.6
(gdb) bt
#0 0x051b2071 in _int_free () from /lib/tls/libc.so.6
#1 0x051b1018 in free () from /lib/tls/libc.so.6
#2 0x009a91f3 in operator delete () from /usr/lib/libstdc++.so.5
#3 0x001831da in mytest_c::CloseDBInterface (this=0xbffeb6b0) at
mytestmx.cc:1985
#4 0x0017d44c in ~mytest_c (this=0xbffeb6b0) at mytestmx.cc:159
#5 0x080553fa in case001 () at mytestmx.cc:151
#6 0x080556b4 in main () at mytestmx.cc:128

Could you plese show the code of your mytest_c::CloseDBInterface
method called by the descructor of mytest_c? Especially the line with
"delete"?

T.M.

 

[Jacek Dziedzic]

Hi,

Can anybody identify a cause or suggest a solution for this
segmentation fault.

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1218629504 (LWP 4935)]
0x051b2071 in _int_free () from /lib/tls/libc.so.6
(gdb) bt
#0 0x051b2071 in _int_free () from /lib/tls/libc.so.6
#1 0x051b1018 in free () from /lib/tls/libc.so.6
#2 0x009a91f3 in operator delete () from /usr/lib/libstdc++.so.5
#3 0x001831da in mytest_c::CloseDBInterface (this=0xbffeb6b0) at
mytestmx.cc:1985
#4 0x0017d44c in ~mytest_c (this=0xbffeb6b0) at mytestmx.cc:159
#5 0x080553fa in case001 () at mytestmx.cc:151
#6 0x080556b4 in main () at mytestmx.cc:128

90% to "you delete the same memory twice".
5% to "you 'delete' instead of 'delete[]' or the other way round".
5% to other options.

Without seeing the actual code I had to resort to me glass ball,
it may not be accurate!

HTH,
- J.