CONFIG_DRM_DEBUG_MODESET_LOCK: Enable backtrace history for lock contention

General informations

The Linux kernel configuration item CONFIG_DRM_DEBUG_MODESET_LOCK:

• prompt: Enable backtrace history for lock contention
• type: bool
• depends on: ( CONFIG_STACKTRACE_SUPPORT ) && ( CONFIG_DEBUG_KERNEL ) && ( CONFIG_EXPERT ) && ( CONFIG_DEBUG_WW_MUTEX_SLOWPATH )
• defined in drivers/gpu/drm/Kconfig
• found in Linux kernels: 5.16–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

Enable debug tracing of failures to gracefully handle drm modeset lock contention. A history of each drm modeset lock path hitting -EDEADLK will be saved until gracefully handled, and the backtrace will be printed when attempting to lock a contended lock.

If in doubt, say "N".

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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