Commit fb193e2d authored Jan 27, 2023 by Keith Packard Committed by Fabio Baltieri Jan 30, 2023

tests/mem_protect: Use minimal libc for kernel.memory_protection

This test has trouble on qemu_x86_tiny and randomly generates a Double
Fault error. I couldn't get it to reliably run with picolibc as a Double
Fault usually occured before the test completed.

I spent a couple of hours attempting to track this down and found that it
happens when code pages for the main thread get unmapped because the
qemu_x86_tiny intentionally offers very few available PTEs.

Work around this by just using the minimal libc for this test.

Signed-off-by: Keith Packard <keithp@keithp.com>

parent 6738e8e9

tests/kernel/mem_protect/mem_protect/testcase.yaml

+1 −1

Original line number	Diff line number	Diff line
		@@ -5,7 +5,7 @@ tests:
		kernel.memory_protection:
		filter: CONFIG_ARCH_HAS_USERSPACE
		platform_exclude: twr_ke18f
		extra_args: CONFIG_TEST_HW_STACK_PROTECTION=n
		extra_args: CONFIG_TEST_HW_STACK_PROTECTION=n CONFIG_MINIMAL_LIBC=y
		kernel.memory_protection.gap_filling.arc:
		filter: CONFIG_ARCH_HAS_USERSPACE and CONFIG_MPU_REQUIRES_NON_OVERLAPPING_REGIONS
		arch_allow: arc

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