如果你只是需要快速使用工具来进行问题排查,包括但不限于函数调用栈跟踪、函数调用子函数流程、函数返回结果,那么推荐你直接使用 BCC trace[1] 或 Brendan Gregg[2] 封装的 perf-tools[3] 工具即可,本文尝试从手工操作 Ftrace 跟踪工具的方式展示在底层是如何通过 tracefs 实现这些能力的。如果你对
如果输出中没有包含/sys/kernel/debug/tracing,那么可能是tracefs文件系统没有正确挂载。你可以尝试手动挂载它: bash sudo mount -t tracefs none /sys/kernel/debug/tracing 检查当前用户是否有权限访问/sys/kernel/debug/tracing路径下的文件: 通常,/sys/kernel/debug目录下的文件需要超级用户权限才能访问。你可以...
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libtracefs: Have nonblock tracefs_cpu reads set errno EAGAIN 2b5bb09 libtracefs: Have tracefs_mmap_read() include subbuf meta data dee0448 libtracefs: Have mapping work with the other tracefs_cpu* functions 28eebc1 libtracefs: Have tracefs_cpu_flush(_buf)() use mapping 065d914 libtracefs:...
lsof: WARNING: can't stat() tracefs file system /sys/kernel/debug/tracing Output information may be incomplete. Environment Red Hat Enterprise Linux 8. Red Hat Enterprise Linux 9. Subscriber exclusive content A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much ...
deb http://noble main 請使用最終確定的鏡像站替換。 您可以從以下任意站台的pool/main/libt/libtracefs/子目錄中下載所需的文件: 注意: 某些瀏覽器需要您明確告訴它們,您僅僅是想保存這些文件,並非檢視或執行它們。對於 Firefox 或者 Mozilla ,您可能需要在按住 Shift 鍵的同時點擊上面的 URL 超連結。
libtracefs-dev_1.2.5-1_amd64.deb 18.8 KiB 2021-Oct-19 13:49 libtracefs-doc_1.2.5-1_all.deb 57.7 KiB 2021-Oct-19 13:49 libtracefs1_1.2.5-1_amd64.deb 18.5 KiB 2021-Oct-19 13:49 libtracefs_1.2.5-1.debian.tar.xz 3.0 KiB 2021-Oct-18 20:42 libtracefs_1.2.5-1.dsc 2.0 KiB...
qhw/libtracefs 2个月 前 renbo02/libtracefs 11个月 前 Ming/libtracefs 接近2年 前 北京奥思研工智能科技有限公司版权所有 技术交流QQ群 微信服务号 client@oschina.cn 企业版在线使用:400-606-0201 专业版私有部署: 13670252304 13352947997 五月2025 ...
In tracefs' start_creating(), we pin the file system to safely access its root. When we failed to create a file, we unpin the file system via failed_creating() to release the mount count and eventually the reference of the singleton vfsmount. However, when we run into an error during...
linux fs tracefs tracefs Find file Code Actions Change inode_operations.mkdir to return struct dentry * NeilBrown authored 2 months ago Verified 88d5baf6 History Code owners Assign users and groups as approvers for specific file changes. Learn more.Name Last commit Last update .. ...