What is Kprobes? It is one of the Linux kernel debugging functions. There are also many other debugging functions such as kgdb (remote debugging) and kernel function tracer. This function returns 0 to indicate success, and a negative error number to indicate failure. unregister_kprobe() , unregister_jprobe() , unregister_kretprobe() Remove the specified probe. These release notes provide an overview of improvements and additional features implemented in Red Hat Enterprise Linux 8.10, as well as known issues with this release. Also includes important bug fixes and tech updates.
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If either the erecp or erec field of the probe record structure is 0, no error logging records are passed and one of the default templates for the symptom string.
First, after reading bpf_text, we use a function called attach_kprobe. As the name suggests, it is attached using kprobe. Specify the location to attach to the event argument.
After configuring struct kprobes, just register it with register_kprobe () and unregister it with unregister_kprobe (). By registering as many as you need in the module's probe function, you can divide it into multiple locations.
