CONFIG_DEBUG_LOCK_ALLOC: Lock debugging: detect incorrect freeing of live locks

General informations

The Linux kernel configuration item CONFIG_DEBUG_LOCK_ALLOC:

• prompt: Lock debugging: detect incorrect freeing of live locks
• type: bool
• depends on: CONFIG_DEBUG_KERNEL && CONFIG_LOCK_DEBUGGING_SUPPORT
• defined in lib/Kconfig.debug
• found in Linux kernels: 2.6.18–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

This feature will check whether any held lock (spinlock, rwlock, mutex or rwsem) is incorrectly freed by the kernel, via any of the memory-freeing routines (kfree(), kmem_cache_free(), free_pages(), vfree(), etc.), whether a live lock is incorrectly reinitialized via spin_lock_init()/mutex_init()/etc., or whether there is any lock held during task exit.

Hardware

LKDDb

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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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