ora-07445: exception encountered: core dump [access_violation] [addr:0x0] [unable_to_read] []

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It turns out the core dump exception was caused by the core. There was a huge amount of code that I had to remove from the stack so that the core would start again, but I had to take ownership of the stack pointer.

It turns out that when I took ownership of the stack pointer, I was somehow able to overwrite some of the stack-allocated memory, which messed up the state of the stack, and thus the core, so that instead of starting over again, the core died.

It’s not a pretty story. And even though I can’t look it up, I’m pretty sure it has to do with a memory corruption, and it’s something that Core-maintained code and/or a memory leak can’t fix.

We have a few people who can fix it, in the form of a memory leak, but that is not going to fix it. Its actually possible to fix the core after the core dies. By doing this, we can undo any of our program’s memory corruption by reclaiming the stack memory, freeing the stack pointer, and then starting over.

By doing this, we can undo any of our programs memory corruption by reclaiming the stack memory, freeing the stack pointer, and then starting over. This is not a bad thing because when Core-maintained code dies, it releases its memory. If we can free the memory that Core-maintained code is using, that memory can be reclaimed and we can start over.

You can see it in the exception we’re getting here. It says that our main program’s stack pointer is in an invalid location. Usually, this is because the program attempted to access or write to a memory location that it wasn’t supposed to. This allows us to reallocate the stack pointer to get it back and then free the memory that our main program is using.

This is where our tooling breaks down a little bit. In order for this exception to be the exception we want, the stack-pointer needs to be in the same memory address as our main program. We can do this by putting the stack pointer in the same memory address as our main program. This is what ORA-07445 is referring to since our stack pointer is in the same memory address as our main program.

In our case, our stack pointer is in the same memory address as our main program. So we need to reallocate our stack pointer to get it back and then free the memory that our main program is using. This is where our tooling breaks down a little bit. In order for this exception to be the exception we want, the stack-pointer needs to be in the same memory address as our main program.

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