Unhandled Exception while disposing ExtFileStream about sharpext4 HOT 7 OPEN

Compile as release mode and try again.

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Same result in release mode:

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Then it could be heap corruption.

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Do you have any idea how to check if the heap is corrupted and/or how to fix it? I‘m not familar with problems like this.

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Just a quick glimpse the screen shot you attached, it seems you are using x64 release, as you can see ext4_write takes uint64 as input, however extfilestream passes int32.

You said you were copying large file (2gb). This may be the reason.

Try x86 mode, or use smaller file

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Thank you for your tips.

I found out the error only occurs when ExtFileStream.Close() is called shortly before disposing.

If I skip closing the stream before disposing, it works.
But on the other hand I get a memory leak, the RAM is not released properly.

Is disposing not closing the stream at all? I think this would be the expected behavior.

Maybe we can improve the whole thing, Dispose should better not throw an error exception if the stream is closed.

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ExtFileStream inherits . Net Stream class and override close.
https://github.com/nickdu088/SharpExt4/blob/main/SharpExt4/ExtFileStream.h#L37

It should be all handled by Stream base class.

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