ERROR: Removing '***': Device or resource busy

最新推荐文章于 2025-02-27 21:46:58 发布
最新推荐文章于 2025-02-27 21:46:58 发布 · 374 阅读 · 1
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本文记录了解决Linux驱动模块helloworld在卸载时遇到的“设备或资源忙”错误的过程。通过检查发现，该问题是由于系统GCC版本与内核GCC版本不匹配导致的。
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编写实验 《linux驱动设备》 中的第一个例子 helloworld,但是insmod安装成功

dmsg |grep ** 也能找到我的模块安装的打印信息，但是rmmod的时候出错了。

ERROR: Removing 'helloworld': Device or resource busy

rmmod -- force 强制删除也没有用

一些常见的原因就不多说了:

1、没有按规定编写module_exit;

2、还有看stackflow上很多的低级函数名写错的问题。

最后参考了：

http://forum.ubuntu.com.cn/viewtopic.php?f=97&t=364431

才发现原来是自己系统目前的gcc版本与 内核的GCC 版本不符合导致的。

由于之前=编译其他代码 将gcc连接改为4.4的版本的，但是我的ubuntu12.04内核gcc是 4.6的

ls -al /usr/bin/gcc查看 gcc版本

cat /proc/version 查看系统信息，包含内核的GCC版本信息

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This overwrites the previous contents of this list, but does not delete any objects that were originally on the list. <br> Created in NX5.0.0. <br> <br> License requirements : None */ public: void SetContents ( const std::vector<NXOpen::CAM::GeometrySet *> & objects /** The list contents */ ); /** Exchanges the position of two objects inside the list. The first object is placed where the second used to be, and second object where the first used to be. <br> Created in NX5.0.0. <br> <br> License requirements : None */ public: void Swap ( int index1 /** location of the first item */, int index2 /** location of the second item */ ); /** Exchanges the position of two objects inside the list. The first object is placed where the second used to be, and second object where the first used to be. <br> Created in NX5.0.0. <br> <br> License requirements : None */ public: void Swap ( NXOpen::CAM::GeometrySet * object1 /** first item */, NXOpen::CAM::GeometrySet * object2 /** second item */ ); /** Inserts an object at the specified location <br> Created in NX5.0.0. <br> <br> License requirements : None */ public: void Insert ( int location /** location at which to insert the object */, NXOpen::CAM::GeometrySet * object /** object to be inserted */ ); /** Move object at the specified location to the top of the list. <br> Created in NX10.0.0. <br> <br> License requirements : None */ public: void MoveToTop ( int index /** location of the item */ ); /** Move object at the specified location to the bottom of the list. <br> Created in NX10.0.0. <br> <br> License requirements : None */ public: void MoveToBottom ( int index /** location of the item */ ); }; } } #ifdef _MSC_VER #pragma warning(pop) #endif #ifdef __GNUC__ #ifndef NX_NO_GCC_DEPRECATION_WARNINGS #pragma GCC diagnostic warning "-Wdeprecated-declarations" #endif #endif #undef EXPORTLIBRARY #endif ”
最新发布
09-29
2. **头文件关键定义**： ```cpp class NXOPENCPP_CAMEXPORT GeometrySetList : public NXOpen::TaggedObject { public: NXOpen::CAM::GeometrySet* FindItem(int index); // 返回明确类型 }; ``` ### 改进...
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