Date: Fri, 17 Feb 2023 12:16:12 -0500
On 2/17/23 12:07, Jason McKesson via Std-Proposals wrote:
> You realize that this proves precisely nothing, right? The source of
> the bug could still be in your code. Switching memory allocators means
> switching where the heap tracking stuff is (and a GPU allocator
> probably puts heap tracking in your CPU's memory rather than GPU
> memory of which there is far less). So a wild-write which on one
> allocator hits heap tracking data, would very likely miss heap
> tracking data on a different allocator. It would hit something else,
> something that your program is able to tolerate better.
I admit I'm using OpenCV4, and I did find some non-atomic reference
count issues in their code but I did fix them.
So anyway I'll write down a simple application whenever I find a copy of
Windows at home and I'll compile statistics to prove my point.
Thanks,
> You realize that this proves precisely nothing, right? The source of
> the bug could still be in your code. Switching memory allocators means
> switching where the heap tracking stuff is (and a GPU allocator
> probably puts heap tracking in your CPU's memory rather than GPU
> memory of which there is far less). So a wild-write which on one
> allocator hits heap tracking data, would very likely miss heap
> tracking data on a different allocator. It would hit something else,
> something that your program is able to tolerate better.
I admit I'm using OpenCV4, and I did find some non-atomic reference
count issues in their code but I did fix them.
So anyway I'll write down a simple application whenever I find a copy of
Windows at home and I'll compile statistics to prove my point.
Thanks,
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Received on 2023-02-17 17:16:13