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bpf程序使用probe_kernel_version()特性在低内核版本无法通过bpf校验器：unrecognized bpf_ld_imm64 insn
已挂起
#I8S66J
Bug
algorithmofdish
Opened this issue
2023-12-28 20:12
【环境信息】 OS release版本：EulerOS 2.0 (SP10) 内核版本：4.19.90-vhulk2107.1.0.h699.eulerosv2r10.aarch64 【问题描述】 在高版本使用容器构建gopher后运行在低版本内核（如上）时，stackprobe探针的 stack_bpf/mem_fp.bpf.o 加载失败。  通过排查代码，发现问题出在 probe_kernel_version() 的调用上，注释掉该行代码程序可正常加载。  ```c extern int LINUX_KERNEL_VERSION __kconfig; static inline int probe_kernel_version() { return LINUX_KERNEL_VERSION; } ```
【环境信息】 OS release版本：EulerOS 2.0 (SP10) 内核版本：4.19.90-vhulk2107.1.0.h699.eulerosv2r10.aarch64 【问题描述】 在高版本使用容器构建gopher后运行在低版本内核（如上）时，stackprobe探针的 stack_bpf/mem_fp.bpf.o 加载失败。  通过排查代码，发现问题出在 probe_kernel_version() 的调用上，注释掉该行代码程序可正常加载。  ```c extern int LINUX_KERNEL_VERSION __kconfig; static inline int probe_kernel_version() { return LINUX_KERNEL_VERSION; } ```
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