segmentation fault before entering main function when using Qt 5.5
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It would help if you would post the complete error message here.
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Hi Everyone,
Iam using QT 5.5 and when iam trying to run my application iam getting segmentation fault before entering main function in ubuntu 14.04. i dont understand what might be reason.
could some one help me in solving this problem
thanks
One reason could be the initialization of global instances. If you have changed your program and it was running before without problem, check in this area.
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Function: _GLOBAL__sub_I_qprinterinfo.cpp(void)
0xb5a8d95f <+0x003f> dec %eax
0xb5a8d960 <+0x0040> add %al,(%eax)
0xb5a8d962 <+0x0042> add %al,(%eax)
0xb5a8d964 <+0x0044> add %al,(%eax)
0xb5a8d966 <+0x0046> movb $0x0,0x4878(%ebx)
0xb5a8d96d <+0x004d> mov %eax,0x487c(%ebx)
0xb5a8d973 <+0x0053> lock incl (%eax)
0xb5a8d976 <+0x0056> setne %dl
0xb5a8d979 <+0x0059> lea 0x1c(%esp),%eax
0xb5a8d97d <+0x005d> mov %eax,(%esp)
0xb5a8d980 <+0x0060> call 0xb5a9bfa0 QString::~QString()
0xb5a8d985 <+0x0065> lea 0x17c0(%ebx),%eax
0xb5a8d98b <+0x006b> mov %eax,0x8(%esp)
0xb5a8d98f <+0x006f> lea 0x486c(%ebx),%eax
0xb5a8d995 <+0x0075> mov %eax,0x4(%esp)
0xb5a8d999 <+0x0079> lea -0x7c0b30(%ebx),%eax
0xb5a8d99f <+0x007f> mov %eax,(%esp)
0xb5a8d9a2 <+0x0082> call 0xb5a8b0a0 __cxa_atexit@plt
0xb5a8d9a7 <+0x0087> add $0x28,%esp
0xb5a8d9aa <+0x008a> pop %ebx
0xb5a8d9ab <+0x008b> ret
0xb5a8d9ac <+0x0000> xchg %ax,%ax
0xb5a8d9ae <+0x0000> xchg %ax,%ax
Function: _GLOBAL__sub_I_qpaintbuffer.cpp(void)
0xb5a8d9b0 <+0x0000> push %esi
0xb5a8d9b1 <+0x0001> push %ebx
0xb5a8d9b2 <+0x0002> call 0xb5a8dd30 <__x86.get_pc_thunk.bx>
0xb5a8d9b7 <+0x0007> add $0x986649,%ebx
0xb5a8d9bd <+0x000d> sub $0x14,%esp
0xb5a8d9c0 <+0x0010> mov 0x4898(%ebx),%eax
0xb5a8d9c6 <+0x0016> lea -0x255ba2(%ebx),%esi
0xb5a8d9cc <+0x001c> test %eax,%eax
0xb5a8d9ce <+0x001e> jne 0xb5a8d9e6 <_GLOBAL__sub_I_qpaintbuffer.cpp(void)+54>
0xb5a8d9d0 <+0x0020> movl $0xffffffff,0x4(%esp)this is the error iam getting
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It looks like your application is already running (so main was called). You should try to run your application through the debugger.
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Can you post your code then I can try it on my Ubuntu 14.04 machine
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It seems you have binary conflict. Are you running app outside of Qt Creator? What happens if you run it in Qt Creator?
