tests/kernel/context failed on multiple platforms.

[chen-png]

Describe the bug
This test tests/kernel/context failed on reel_board, frdm_k64f, sam_e70_xplained, mec15xxevb_assy6853 and up_squared.

To Reproduce
Steps to reproduce the behavior:

1. west build -b reel_board -p auto tests/kernel/context
2. west flash
3. See error

Screenshots or console output

*** Booting Zephyr OS build zephyr-v2.2.0-2667-g57671d97165f  ***
Running test suite context

starting test - test_kernel_interrupts
PASS - test_kernel_interrupts

starting test - test_kernel_timer_interrupts
SKIP - test_kernel_timer_interrupts

starting test - test_kernel_ctx_thread
Testing k_current_get() from an ISR and thread
Testing k_is_in_isr() from an ISR
Testing k_is_in_isr() from a preemptible thread
PASS - test_kernel_ctx_thread

starting test - test_busy_wait
Thread busy waiting for 20000 usecs
Thread busy waiting completed
Thread busy waiting for 20000 usecs (irqs locked)
Thread busy waiting completed (irqs locked)
**Assertion failed at WEST_TOPDIR/zephyr/tests/kernel/context/src/main.c:786: test_busy_wait: (rv is true)
*** thread timed out waiting for k_busy_wait()
FAIL - test_busy_wait**

starting test - test_k_sleep
**Testing k_thread_create() without cancellation
thread (q order: 0, t/o: 1000) is running
E: ***** BUS FAULT *****
E:   Precise data bus error**
E:   BFAR Address: 0xfffffff5
E: r0/a1:  0xfffffff5  r1/a2:  0xe000ed00  r2/a3:  0x20000c18
E: r3/a4:  0x20000558 r12/ip:  0x00000000 r14/lr:  0x000074fb
E:  xpsr:  0x61000000
E: Faulting instruction address (r15/pc): 0x000074fa
E: >>> ZEPHYR FATAL ERROR 0: CPU exception on CPU 0
E: Current thread: 0x20000558 (unknown)
E: Halting system

Environment (please complete the following information):

• OS: fedora28
• Toolchain: zephyr-sdk-0.11.2
• Commit ID: 57671d9

[erwango]

Seen on stm32 boards as well (disco_l475_iot1, nucleo_f429zi, nucleo_f746zg, nucleo_l152re, nucleo_wb55rg, stm32f3_disco, ...)

[stephanosio]

This seems to be happening on all Cortex-M platforms (also happens on Cortex-M4 atsame54_xpro and Cortex-M0 atsamd21_xpro).

[stephanosio]

atsame54_xpro (Cortex-M4):

*** Booting Zephyr OS build v2.3.0-rc1  ***
Running test suite context
===================================================================
starting test - test_kernel_interrupts
PASS - test_kernel_interrupts
===================================================================
starting test - test_kernel_timer_interrupts
SKIP - test_kernel_timer_interrupts
===================================================================
starting test - test_kernel_ctx_thread
Testing k_current_get() from an ISR and thread
Testing k_is_in_isr() from an ISR
Testing k_is_in_isr() from a preemptible thread
PASS - test_kernel_ctx_thread
===================================================================
starting test - test_busy_wait
Thread busy waiting for 20000 usecs
Thread busy waiting completed
Thread busy waiting for 20000 usecs (irqs locked)
Thread busy waiting completed (irqs locked)

    Assertion failed at ../src/main.c:786: test_busy_wait: (rv is true)
 *** thread timed out waiting for k_busy_wait()
FAIL - test_busy_wait
===================================================================
starting test - test_k_sleep
Testing k_thread_create() without cancellation
 thread (q order: 0, t/o: 1000) is running
E: ***** BUS FAULT *****
E:   Precise data bus error
E:   BFAR Address: 0xfffffff5
E: r0/a1:  0xfffffff5  r1/a2:  0xe000ed00  r2/a3:  0x20000b10
E: r3/a4:  0x20000498 r12/ip:  0x00000000 r14/lr:  0x0000597b
E:  xpsr:  0x61000000
E: Faulting instruction address (r15/pc): 0x0000597a
E: >>> ZEPHYR FATAL ERROR 0: CPU exception on CPU 0
E: Current thread: 0x20000498 (unknown)
E: Halting system

atsamd21_xpro (Cortex-M0):

*** Booting Zephyr OS build v2.3.0-rc1  ***
Running test suite context
===================================================================
starting test - test_kernel_interrupts
PASS - test_kernel_interrupts
===================================================================
starting test - test_kernel_timer_interrupts
SKIP - test_kernel_timer_interrupts
===================================================================
starting test - test_kernel_ctx_thread
Testing k_current_get() from an ISR and thread
Testing k_is_in_isr() from an ISR
Testing k_is_in_isr() from a preemptible thread
PASS - test_kernel_ctx_thread
===================================================================
starting test - test_busy_wait
Thread busy waiting for 20000 usecs
Thread busy waiting completed
Thread busy waiting for 20000 usecs (irqs locked)
Thread busy waiting completed (irqs locked)

    Assertion failed at ../src/main.c:786: test_busy_wait: (rv is true)
 *** thread timed out waiting for k_busy_wait()
FAIL - test_busy_wait
===================================================================
starting test - test_k_sleep
Testing k_thread_create() without cancellation
 thread (q order: 0, t/o: 1000) is running
E: ***** HARD FAULT *****
E: r0/a1:  0xfffffff5  r1/a2:  0xe000ed00  r2/a3:  0x20000ad0
E: r3/a4:  0x20000540 r12/ip:  0x00000000 r14/lr:  0x000060f5
E:  xpsr:  0x01000000
E: Faulting instruction address (r15/pc): 0x000057e4
E: >>> ZEPHYR FATAL ERROR 0: CPU exception on CPU 0
E: Current thread: 0x200004b8 (unknown)
E: Halting system

[stephanosio]

This is the culprit: b7e3636

cc @andrewboie

[stephanosio]

Fixed by #25203

[andrewboie]

This is the culprit: b7e3636

cc @andrewboie

argh, this is another really old PR that got merged