我的应用程序偶尔崩溃并生成coredump。 每次堆叠都不同。但每当它转储时,我发现其中一个指针会被破坏。并且每次指针值的前4个字节将为0X100(256)。通过这个我可以看出这个转储是由于内存损坏。但我不知道如何继续。我在代码上运行了所有静态工具。但我真的不能附加valgrind(我无法访问网站)
#0 0x00002b5775455738 in _STL::_List_base<int, _STL::allocator<int> >::clear (this=0x2b576debd408) at /home/enipcore/core/add-ons/include/stlport/stl/_list.c:72
72 in /home/xxxx/core/add-ons/include/stlport/stl/_list.c
(gdb) info locals
__tmp = 0x10084a957f0
__cur = 0x10084a957f0
(gdb)
我将分享我所拥有的信息,请告诉我如何继续。我真的不知道在这里给出什么信息。如果有人想要我运行任何命令并获得内存打印,我可以分享。
(gdb) p &__tmp
$13 = (_STL::_List_node<int> **) 0x2b577b70e4b8
(gdb)
注册,eax会有这个错误的值
$13 = (_STL::_List_node<int> **) 0x2b577b70e4b8
(gdb) i r
rax 0x10084a957f0 1101737318384
rbx 0x2b5771e1fccb 47654572784843
rcx 0x2b576e1251d0 47654508843472
rdx 0x85 133
rsi 0x2b571729eee8 47653050773224
rdi 0x2b576debd408 47654506320904
rbp 0x2b577b70e4c0 0x2b577b70e4c0
rsp 0x2b577b70e4a0 0x2b577b70e4a0
r8 0x2b576d176480 47654492398720
r9 0x7bbe 31678
r10 0x2b5774f0a5e0 47654624077280
r11 0x2b57165c3f80 47653037293440
r12 0x2b577b716e68 47654733180520
r13 0x0 0
r14 0x2b57188221e0 47653073330656
r15 0x2b577b716e68 47654733180520
rip 0x2b5775455738 0x2b5775455738 <_STL::_List_base<int, _STL::allocator<int> >::clear()+40>
eflags 0x10206 [ PF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
fctrl 0x37f 895
fstat 0x0 0
ftag 0xffff 65535
fiseg 0x0 0
fioff 0x0 0
foseg 0x0 0
fooff 0x0 0
fop 0x0 0
mxcsr 0x1fa0 [ PE IM DM ZM OM UM PM ]
(gdb)
一些内存转储。
(gdb) x/20a 0x2b577b70e4b8 -20
0x2b577b70e4a4: 0x6debd40800002b57 0x84a957f000002b57
0x2b577b70e4b4: 0x84a957f000000100 0x7b70e4e000000100
0x2b577b70e4c4: 0x754557fb00002b57 0x7b70e55000002b57
0x2b577b70e4d4: 0x6debd40800002b57 0x7b70e50000002b57
0x2b577b70e4e4: 0x7545583100002b57 0x7b716e6800002b57
0x2b577b70e4f4: 0x6debd40800002b57 0x7b70e55000002b57
0x2b577b70e504: 0x75451de100002b57 0x6de161a000002b57
0x2b577b70e514: 0x100002b57 0x6debd40800000000
0x2b577b70e524: 0x6debd3c800002b57 0x2b57
0x2b577b70e534: 0x167f860800000000 0x71e1fccb00002b57