CONFIG_UML_MAX_USERSPACE_ITERATIONS: Maximum number of unscheduled userspace iterations

General informations

The Linux kernel configuration item CONFIG_UML_MAX_USERSPACE_ITERATIONS:

• prompt: Maximum number of unscheduled userspace iterations
• type: int
• depends on: CONFIG_UML_TIME_TRAVEL_SUPPORT
• defined in arch/um/Kconfig
• found in Linux kernels: 6.13-rc+HEAD

Help text

In UML inf-cpu and ext time-travel mode userspace can run without being interrupted. This will eventually overwhelm the kernel and create OOM situations (mainly RCU not running). This setting specifies the number of kernel/userspace switches (minor/major page fault, signal or syscall) for the same userspace thread before the sched_clock is advanced by a jiffie to trigger scheduling.

Setting it to zero disables the feature.

Hardware

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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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