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CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE: Turn off hwtrace in CPLB handlers

General informations

The Linux kernel configuration item CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE has multiple definitions:

Trace user apps (turn off hwtrace in kernel) found in arch/blackfin/Kconfig.debug

The configuration item CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE:

Help text

Some pieces of the kernel contain a lot of flow changes which can quickly fill up the hardware trace buffer. When debugging crashes, the hardware trace may indicate that the problem lies in kernel space when in reality an application is buggy.

Say Y here to disable hardware tracing in some known "jumpy" pieces of code so that the trace buffer will extend further back.

Trace user apps (turn off hwtrace in kernel) found in arch/blackfin/Kconfig

The configuration item CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE:

Help text

Some pieces of the kernel contain a lot of flow changes which can quickly fill up the hardware trace buffer. When debugging crashes, the hardware trace may indicate that the problem lies in kernel space when in reality an application is buggy.

Say Y here to disable hardware tracing in some known "jumpy" pieces of code so that the trace buffer will extend further back.

Turn off hwtrace in CPLB handlers found in arch/blackfin/Kconfig.debug

The configuration item CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE:

Help text

The CPLB error handler contains a lot of flow changes which can quickly fill up the hardware trace buffer. When debugging crashes, the hardware trace may indicate that the problem lies in kernel space when in reality an application is buggy.

Say Y here to disable hardware tracing in some known "jumpy" pieces of code so that the trace buffer will extend further back.

Hardware

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