Enable CONFIG_NET_DROP_MONITOR
Nobody has claimed this yet.
Assessment
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Newbie friendliness
- 35/100
- Issue type
- Feature
- Clarity
- Clearly specified
- Activity status
- Stale
- Tech stack
- linux
- Domain
- operating-systems
Research direction
Start by locating the Raspberry Pi kernel configuration entries for CONFIG_NET_DROP_MONITOR across the available configurations. Check the relevant kernel configuration documentation or existing config patterns, then verify that the option is enabled as a module and that dwdump can resolve the NET_DM family on the resulting build.
Written by the indexing model from the issue text.
Description
Describe the bug
I'm trying to track down packet drops (possibly expected kernel drops, but I want to be sure) and wanted to capture them on a pcap file for analysis.
So I installed the dropwatch package (provides dwdump) on Debian/Raspbian, but it looks like the kernel needs CONFIG_NET_DROP_MONITOR[=m|y] which is not available, at least in 6.6.
Steps to reproduce the behaviour
menakite@raspy:~ $ sudo apt install dropwatch
...
menakite@raspy:~ $ sudo dwdump -s
Failed to resolve ID of "NET_DM" family
menakite@raspy:~ $ sudo modprobe configs; zgrep DROP /proc/config.gz
# CONFIG_NET_DROP_MONITOR is not set
Device (s)
Raspberry Pi 5
System
Linux raspy 6.6.35-v8-16k+ #1779 SMP PREEMPT Tue Jun 25 11:38:45 BST 2024 aarch64 GNU/Linux
Logs
No response
Additional context
Had to select a device, but it obviously is not device-specific and in case should be enabled on all configs.
I suggest you enable as module (=m) and not built-in.
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