bpflist doesn't show attached probes
- Dominant language
- C
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- 5d 13h
- Merged PRs (30d)
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Description
bpflist -vv shows no attached kprobes or uprobes
```
$bpflist -vv
open kprobes:
open uprobes:
PID COMM TYPE COUNT
2718 biolatency map 2
2718 biolatency prog 2
``
I suspect this is because bpflist looks for the probes in debugfs (/sys/kernel/debug/tracing/{k,u}probe_events) and attach_kprobe uses perf_event_open() syscall when available, which is probably always nowadays.
Contributor guide
No contributing guide indexed for this repository
Research direction
Start by inspecting bpflist's probe discovery and the attach_kprobe path, comparing debugfs probe listings with the perf_event_open() behavior described in the report. Done means bpflist -vv correctly reports attached kprobes and uprobes while retaining its existing map and program output.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c, linux
- Domain
- cli, observability, operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100