I've seen a few people encounter this issue with the heap size, which seems to be the issue in my case:
2> Could not reserve enough space for 1048576KB object heap (TaskId:336)
I tried manually setting it to 1G:
Got the same error, realised the space required is actually greater than 1G (it's about 1.04GB), so I set it to 2G. But this just escalated the error:
1> Could not reserve enough space for 2097152KB object heap (TaskId:305)
I thought I'd go nuclear and just set it to 10G, but then I got a different error saying it failed to create the Java VM.
In all honesty, I don't actually know what these mean, I'm just following along based on research of other SO and Xamarin Forums posts. Can anyone explain to me why I'm seeing these errors and how I can fix them?
Notes based on other questions: It's on debug, not release, and I don't have ProGuard ticked.
Steps to fix:
Select 64-bit Java SDK (as per instructions)
Set heap size to 5G (as per screenshot in question)
Built and ran successfully after this.
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I'm on MacOs 10.13.4 (High Sierra)
Using IntelliJ 2020.3.1 (Community Edition)
I've tried increasing the heap size but failed. I've tried these two things:
Changing through the dialog box Help->Change Memory Settings. But I get stuck with the spinning cursor and have to force quit IntelliJ. However when I restart IntelliJ the memory is increased. But when I run something that requires a lot of heap size I get "OutOfMemoryError: Java heap space".
Changing directly in the idea.vmoptions file. Changing "-Xmx750m" to e.g. "-Xmx8096m". But after restart of IntelliJ I still get: "OutOfMemoryError: Java heap space".
IntelliJ->Help->Edit Custom VM Options...
I have run the exact same files in Eclipse after increasing the heap size there to 4096 mb. Therefore I know the problem isn't that the program I run need more heap space than that. To me it seems like there's no effect from the increase.
Hope you guys can help me!
You can try the following:
File->Settings->Build,Execution,Deployment->Compiler->Shared build process heap size (Mbytes)
I’m trying to build my Swift app and, as the title states, it never finishes building and eventually I get a warning for critically low system memory. I have about 23GB free on my computer but as soon as I hit build and watch the memory usage on Activity Monitor the Swift process gradually increases in size, reaching tens of gigabytes in size until my computer dies. This only recently started happening but I don’t know how to solve it. It also seems to happen whilst Xcode indexes my project. It gets stuck at the "Compiling Swift sources" stage. Does anyone have a solution?
I solved it! The problem was I had a function that was a bit complex and it was returning a value, but I had set the function as void. I tracked this down by removing files that I'd recently changed from the target and then compiling to see if it would give an error or just compile forever. Then I commented out bits of code.
I solve it by cleaning the code first (shift+command+K)...
Then keep it free for indexing...
After that rebuild (command+B)...
And it works fine...
I'm after a bit of info on how JWrapper uses memory on the client. We've got a 3rd party app that we're running through JWrapper. Before moving to JWrapper we had issues with memory leaks so we previously set the runtime memory parameter to Xmx256m in the deployment file. Can I specify how much memory to use in JWrapper?
I genuinely have tried to find this out myself but I can't find anything on the web. I didn't have any choice about getting JWrapper; it just happened to me one day hence I haven't really got much of an idea about it.
Thanks, :)
You can set the jvm options in your jwrapper XML config file including -Xmx256m etc, the following sample XML file has an example -Xmx option:
http://www.jwrapper.com/sample-app-xml.html
I have been struggling to detect a memory corruption error in our product. The memory detection tools like valgrind only tell the problem at the time of the crash, not when the corruption actually occurs. I have seen while using debug builds that it will check the memory area before and after the block being freed, and show a debug assertion failure saying a heap corruption has occured. So can I rebuild my product in debug mode to capture the error right when it occurs? Will it also catch buffer overruns etc? I could not find any information on the internet about debug builds being targetted towards memory error detection.
You can use as well the 'Page Heap' available on every version of Windows.
You can use gflags that comes along to Debugging Tools for Windows to configure Full Page Heap for your application.
You can then run your application, even in retail mode, under the debugger. The debugger will stop once you encounter a buffer overrun or access to freed memory.
I like very much this tool, because it is built in the OS, an can even be activated on a customer site (gflags only sets registry keys and you can simply send these keys to your customer).
Some people are afraid when we mention (Debugging Tools for Windows). You can use Visual Studio to diagnose the problem. The only thing you need are the PDBs corresponding to your binaries (you can generate them even for release builds).
I am not sure about the debug builds, but for a nice overview of memory corruption tools you might look at http://code.google.com/p/address-sanitizer/wiki/ComparisonOfMemoryTools. It list Valgrind and what it should be able to check for you.
"C++" is not a compiler; vendors make their own according (more or less) to the standard specs.
I only have experience with Microsoft's, and I can tell you that it checks heap corruption by allocating "sentries" around each new or malloc block (in debug mode only, of course) and filling them with a special pattern (was 0xCD when I last used it), and then it checks the guards for every write around that location. If they changed, you'll get a run-time error saying the heap got corrupted.
By the way, buffer overflows are heap corruption.
Edit to add a reference: http://msdn.microsoft.com/en-us/library/8wtf2dfz.aspx
When I'm running a program which is used to read an video I'm getting an error referring to Heapsize which is shown below:
EAP[videodemo34.exe]: Invalid address specified to RtlSizeHeap( 04EC0000, 00254CE8 )
Windows has triggered a breakpoint in videodemo34.exe.
This may be due to a corruption of the heap, and indicates a bug in videodemo34.exe or any of the DLLs it has loaded.
The output window may have more diagnostic information
can anyone say about it?
It would be helpful if you posted some code with your questions Prashanth (refer to one of your other threads).
Anyway it is doubtful that this is a bug as it clearly states that a breakpoint has been triggered in your code.
This will most likely be because you are running a debug executable with embedded breakpoints.