CONFIG_TEST_KMOD: kmod stress tester

General informations

The Linux kernel configuration item CONFIG_TEST_KMOD:

• prompt: kmod stress tester
• type: tristate
• depends on: ( CONFIG_m ) && ( CONFIG_NETDEVICES && CONFIG_NET_CORE && CONFIG_INET ) && ( CONFIG_BLOCK ) && ( CONFIG_PAGE_SIZE_LESS_THAN_256KB )
• defined in lib/Kconfig.debug
• found in Linux kernels: 4.13–4.20, 5.0–5.19, 6.0–6.12
• modules built: test_kmod

Help text

Test the kernel's module loading mechanism: kmod. kmod implements support to load modules using the Linux kernel's usermode helper. This test provides a series of tests against kmod.

Although technically you can either build test_kmod as a module or into the kernel we disallow building it into the kernel since it stress tests request_module() and this will very likely cause some issues by taking over precious threads available from other module load requests, ultimately this could be fatal.

To run tests run:

tools/testing/selftests/kmod/kmod.sh --help

If unsure, say N.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module test_kmod CONFIG_TEST_KMOD : lib/Kconfig.debug : "kmod stress tester" # in 4.13–4.20, 5.0–5.19, 6.0–6.12

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)

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