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修复kmemleak 误报内存泄露
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林郁钧
Opened this issue
2025-04-02 16:01
<!-- #请根据issue的类型在标题左侧下拉框中选择对应的选项(需求、缺陷或CVE等)--> <!-- #请根据issue相关的版本在里程碑中选择对应的节点,若是与版本无关,请选择“不关联里程碑”--> 问题出现的原因是kmemleak检测到32KB未释放内存(efi_rt_stack_top),分配路径为: arm64_efi_rt_init() -> __vmalloc_node_range() 该内存属于initcall阶段分配的内核初始化内存,需长期保留供EFI运行时服务使用 因此在initcall阶段分配的内核初始化内存的时候,增加kmemleak_not_leak()屏蔽此误报。
<!-- #请根据issue的类型在标题左侧下拉框中选择对应的选项(需求、缺陷或CVE等)--> <!-- #请根据issue相关的版本在里程碑中选择对应的节点,若是与版本无关,请选择“不关联里程碑”--> 问题出现的原因是kmemleak检测到32KB未释放内存(efi_rt_stack_top),分配路径为: arm64_efi_rt_init() -> __vmalloc_node_range() 该内存属于initcall阶段分配的内核初始化内存,需长期保留供EFI运行时服务使用 因此在initcall阶段分配的内核初始化内存的时候,增加kmemleak_not_leak()屏蔽此误报。
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