CONFIG_PRINTK_INDEX: Printk indexing debugfs interface

General informations

The Linux kernel configuration item CONFIG_PRINTK_INDEX:

• prompt: Printk indexing debugfs interface
• type: bool
• depends on: CONFIG_PRINTK && CONFIG_DEBUG_FS
• defined in init/Kconfig
• found in Linux kernels: 5.15–5.19, 6.0–6.12

Help text

Add support for indexing of all printk formats known at compile time at <debugfs>/printk/index/<module>.

This can be used as part of maintaining daemons which monitor /dev/kmsg, as it permits auditing the printk formats present in a kernel, allowing detection of cases where monitored printks are changed or no longer present.

There is no additional runtime cost to printk with this enabled.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

Automatic links from Google (and ads)

Custom Search

Popular queries: