logo
down
shadow

Why does my program occasionally segfault when out of memory rather than throwing std::bad_alloc?


Why does my program occasionally segfault when out of memory rather than throwing std::bad_alloc?

By : rcgneo
Date : November 20 2020, 07:00 PM
may help you . One reason might be that by default Linux overcommits memory. Requesting memory from the kernel appears to work alright, but later on when you actually start using the memory the kernel notices "Oh crap, I'm running out of memory", invokes the out-of-memory (OOM) killer which selects some victim process and kills it.
For a description of this behavior, see http://lwn.net/Articles/104185/
code :


Share : facebook icon twitter icon
C++ program dies with std::bad_alloc, BUT valgrind reports no memory leaks

C++ program dies with std::bad_alloc, BUT valgrind reports no memory leaks


By : Alex Llanos
Date : March 29 2020, 07:55 AM
should help you out Run the program under debugger so that it stops once that exception is thrown and you can observe the call stack.
Three most probable problems are:
terminate called after throwing an instance of 'std::bad_alloc' what(): std::bad_alloc Aborted

terminate called after throwing an instance of 'std::bad_alloc' what(): std::bad_alloc Aborted


By : user284744
Date : March 29 2020, 07:55 AM
help you fix your problem I am getting a bad_alloc exception in my program. , Because what you do here:
code :
  for (size_t i = 0; i < N; i++)
        suffixes[i] = s.substr(i);
Node.js error "terminate called after throwing an instance of 'std::bad_alloc' what(): std::bad_alloc"

Node.js error "terminate called after throwing an instance of 'std::bad_alloc' what(): std::bad_alloc"


By : Pierre-Yves Tinel
Date : March 29 2020, 07:55 AM
I wish this help you It looks like your script is just run out of the available memory.
Most likely you upload or download very large file and you read complete file in memory while receiving or sending.
terminate called after throwing an instance of 'std::bad_alloc' what(): std::bad_alloc"

terminate called after throwing an instance of 'std::bad_alloc' what(): std::bad_alloc"


By : user520009
Date : March 29 2020, 07:55 AM
Does that help What is the reason for this error?Actually I dont want to get affected by the previous testcase result so at beginning of test case,I emptied the queue so that each test case could get fresh start. " , The problem here is in the lines,
code :
swap(first, empty);
swap(second, empty);
first = queue<int> ();
second = queue<int> ();
first = empty;
second = empty;
Why new[-1] generates segfault, while new[-2] throws bad_alloc?

Why new[-1] generates segfault, while new[-2] throws bad_alloc?


By : David Miller
Date : March 29 2020, 07:55 AM
Any of those help Here's my wild guess:
In lot of implementations, the allocator will place some meta-data next to the allocated region.
Related Posts Related Posts :
  • C++ help and questions
  • combinations algorithm
  • undefined reference
  • C++ undefined reference
  • Output unicode strings in Windows console app
  • Memory management in Qt?
  • File with .cpp,v extension
  • Using LZMA SDK in C++
  • C++ arithmetic with pointers
  • How to get values of attributes on a XML file using C++?
  • What is a thread pool in C++ and how it is implemented?
  • pthreads and C++
  • Virtual function
  • Windows/C++: how to use a COM dll which is not registered
  • Hash Table v/s STL map in C++
  • If-else-if versus map
  • C++ cin questions
  • how to do virtualization?
  • C/C++ definitions of functions
  • read access violation error
  • how to find the first word in the sentence having 'w' in it
  • How to allocate more memory for a buffer in C++?
  • Deleting a node in a circular linked list c++?
  • How to run Qt from command line in windows
  • C++ word to bytes
  • What's wrong with these pointer initialization
  • Access Violation Using memcpy or Assignment to an Array in a Struct
  • Wrong operator() overload called
  • Subtractively sweep a solid through another in python (or C++)
  • boost ublas: rotate 2d vector
  • How can a Windows program temporarily change its time zone?
  • small & readable scheme interpreter in C++?
  • Cannot change the height of a combo box in the VS Dialog Editor
  • Access reading error when using class member variable
  • How to tell if two exe's are the same code-wise?
  • Modifying an old Windows program not to call exit after a keypress without source access
  • What is name lookup mechanism?
  • What does the C++ compiler error "looks like a function definition, but there is no parameter list;" mean?
  • Why does this crash with access violation to 0xcccccc...?
  • How to find out how namespace got polluted?
  • What is the _REENTRANT flag?
  • Managing many objects at once
  • How to create ActiveX DLL in Visual C++
  • Generic allocator class without variadic templates?
  • Comparation in JNI
  • Using a function with reference as a function with pointers?
  • How to initialize an unsigned long long type?
  • How to practically customize IE context menu?
  • Trying to Create a ToolBar with an ImageList, not working
  • How does the destructor know when to activate itself? Can it be relied upon?
  • Conway's Game of Life - C++ and Qt
  • Accessing any structs members at run-time
  • Including #includes in header file vs source file
  • How does switch compile in Visual C++ and how optimized and fast is it?
  • How to override nested C++ objects methods?
  • penalty for "inlined" classes
  • C++ Library for implementing a web services api over legacy code?
  • C++-Singleton class
  • Floating point precision in Visual C++
  • Compiler error when overriding virtual methods
  • shadow
    Privacy Policy - Terms - Contact Us © 35dp-dentalpractice.co.uk