CONFIG_SOFTLOCKUP_DETECTOR_INTR_STORM: Detect Interrupt Storm in Soft Lockups

General informations

The Linux kernel configuration item CONFIG_SOFTLOCKUP_DETECTOR_INTR_STORM:

• prompt: Detect Interrupt Storm in Soft Lockups
• type: bool
• depends on: ( CONFIG_SOFTLOCKUP_DETECTOR && CONFIG_IRQ_TIME_ACCOUNTING ) && ( CONFIG_NR_CPUS <= CONFIG_128 )
• defined in lib/Kconfig.debug
• found in Linux kernels: 6.10–6.13, 6.14-rc+HEAD

Help text

Say Y here to enable the kernel to detect interrupt storm during "soft lockups".

"soft lockups" can be caused by a variety of reasons. If one is caused by an interrupt storm, then the storming interrupts will not be on the callstack. To detect this case, it is necessary to report the CPU stats and the interrupt counts during the "soft lockups".

Hardware

LKDDb

Raw data from 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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