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lab1-kalloc_test.c: static RefCount 需要添加 volatile 限定符 #6

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Invisiphantom opened this issue Oct 7, 2024 · 0 comments
Open

lab1-kalloc_test.c: static RefCount 需要添加 volatile 限定符 #6

Invisiphantom opened this issue Oct 7, 2024 · 0 comments

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@Invisiphantom
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启用 -O 优化
其他CPU修改 RefCount 后
当前CPU不会及时从内存更新 x0 的值

SYNC(1):
> 0x1100   ldr x0, [x19]
> 0x1104   cmp x0, #0x3
> 0x1108   b.le 0x1104  # 出现死循环
@Invisiphantom Invisiphantom changed the title lab1 RefCount 需要添加 volatile lab1-kalloc_test.c: static RefCount 需要添加 volatile 限定符 Oct 7, 2024
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@Invisiphantom