[BUG] Memory accumulation when using load_image in a loop

まず src/main.rs:6 にある提供されたループを実行し、src/image/mod.rs:317 の load_image ラッパーと、報告されているネイティブな af_load_image パスを調べます。画像の繰り返し読み込みによってデバイスメモリが保持されるかを追跡し、関連するクリーンアップまたは所有権の挙動を特定します。繰り返し読み込み用の回帰テストを追加し、再現手順でメモリ不足エラーが発生するまでメモリが蓄積されなくなれば完了です。

The following program crashed. But why?

use arrayfire::*;

fn main() {
    let mut y =constant!(0 as u8;1);
    for i in 0..1000 {
        let x = load_image::<u8>("2dzs/robot_2dz.png".to_string(), true);
        let z = or(&x, &y, true);
        y = z.copy();
        println!("i={}", i);
    }
    println!("max(y)={:#?}", max_all(&y));
}

i=0
i=1
i=2
i=3
i=4
i=5
i=6
i=7
i=8
i=9
i=10
i=11
i=12
i=13
i=14
i=15
i=16
i=17
i=18
i=19
i=20
i=21
i=22
i=23
i=24
i=25
i=26
i=27
i=28
i=29
i=30
i=31
i=32
i=33
i=34
i=35
i=36
i=37
i=38
i=39
i=40
i=41
i=42
i=43
i=44
i=45
i=46
i=47
i=48
i=49
i=50
i=51
thread 'main' panicked at 'Error message: System or Device ran out of memory
Last error: In function af_load_image
In file src/api/c/imageio.cpp:393


 0# 0x00007F4FC1A299AF in /opt/arrayfire/lib/libafcuda.so.3
 1# 0x0000560F6F590AFF in target/debug/crash
 2# 0x0000560F6F590099 in target/debug/crash
 3# 0x0000560F6F5903AB in target/debug/crash
 4# 0x0000560F6F59031E in target/debug/crash
 5# 0x0000560F6F58FC41 in target/debug/crash
 6# 0x0000560F6F5A707F in target/debug/crash
 7# 0x0000560F6F58FC10 in target/debug/crash
 8# 0x0000560F6F5902EC in target/debug/crash
 9# 0x00007F4FFB823510 in /lib/x86_64-linux-gnu/libc.so.6
10# __libc_start_main in /lib/x86_64-linux-gnu/libc.so.6
11# 0x0000560F6F58FB15 in target/debug/crash
', /home/joe/.cargo/registry/src/mirrors.ustc.edu.cn-12df342d903acd47/arrayfire-3.8.0/src/core/error.rs:37:14
stack backtrace:
   0: rust_begin_unwind
             at /rustc/c07a8b4e09f356c7468b69c50cac7fc5b5000b8a/library/std/src/panicking.rs:584:5
   1: core::panicking::panic_fmt
             at /rustc/c07a8b4e09f356c7468b69c50cac7fc5b5000b8a/library/core/src/panicking.rs:142:14
   2: arrayfire::core::error::handle_error_general
             at /home/joe/.cargo/registry/src/mirrors.ustc.edu.cn-12df342d903acd47/arrayfire-3.8.0/src/core/error.rs:37:14
   3: arrayfire::core::error::Callback::call
             at /home/joe/.cargo/registry/src/mirrors.ustc.edu.cn-12df342d903acd47/arrayfire-3.8.0/src/core/error.rs:29:9
   4: arrayfire::core::error::HANDLE_ERROR
             at /home/joe/.cargo/registry/src/mirrors.ustc.edu.cn-12df342d903acd47/arrayfire-3.8.0/src/core/error.rs:95:5
   5: arrayfire::image::load_image
             at /home/joe/.cargo/registry/src/mirrors.ustc.edu.cn-12df342d903acd47/arrayfire-3.8.0/src/image/mod.rs:317:9
   6: crash::main
             at ./src/main.rs:6:17
   7: core::ops::function::FnOnce::call_once
             at /rustc/c07a8b4e09f356c7468b69c50cac7fc5b5000b8a/library/core/src/ops/function.rs:248:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.