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sanitycheck --coverage: stack overflows on qemu_x86, mps2_an385 and qemu_x86_nommu #15206

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cinlyooi-intel opened this issue Apr 5, 2019 · 0 comments · Fixed by #15277
Closed

sanitycheck --coverage: stack overflows on qemu_x86, mps2_an385 and qemu_x86_nommu #15206

cinlyooi-intel opened this issue Apr 5, 2019 · 0 comments · Fixed by #15277
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@wentongwu
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bug The issue is a bug, or the PR is fixing a bug priority: low Low impact/importance bug

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@cinlyooi-intel
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Describe the bug
Closure of bug #14500 via pull request #15005 remove the majority of coverage error. (Thank you for the effort. I appreciate it a lot)

I am trying not to look a gift horse in the mouth, but here are the remaining errors after merging #15005.

To Reproduce

$./scripts/sanitycheck -v    --coverage
   --coverage-platform mps2_an385            -p mps2_an385 \
   --coverage-platform qemu_x86               -p qemu_x86 \
   --coverage-platform qemu_x86_nommu -p qemu_x86_nommu \
   --gcov-tool /opt/zephyr-sdk-0.9.5/sysroots/x86_64-pokysdk-linux/usr/bin/i586-zephyr-elf/i586-zephyr-elf-gcov -T tests/kernel/ -T tests/subsys/logging

It is confirmed that, if I am not running code coverage, i.e.

$./scripts/sanitycheck -v    --coverage
   -p mps2_an385 \
   -p qemu_x86 \
   -p qemu_x86_nommu \
   --gcov-tool /opt/zephyr-sdk-0.9.5/sysroots/x86_64-pokysdk-linux/usr/bin/i586-zephyr-elf/i586-zephyr-elf-gcov -T tests/kernel/ -T tests/subsys/logging

all the test that failed in coverage tests, passed here.

Environment (please complete the following information):

  • OS: fedora29
  • Toolchain: zephyr
  • Commit SHA or Version used: 0c59471

** Failures **
For:

  • 1/214 mps2_an385 tests/kernel/fatal/kernel.common.stack_sentinel FAILED: handler_crash
    see: sanity-out/mps2_an385/tests/kernel/fatal/kernel.common.stack_sentinel/run.log
  • 22/214 mps2_an385 tests/kernel/mem_protect/mem_protect/kernel.memory_protection FAILED: handler_crash
    see: sanity-out/mps2_an385/tests/kernel/mem_protect/mem_protect/kernel.memory_protection/run.log
[100%] [QEMU] CPU: cortex-m3
QEMU 3.1.0 monitor - type 'help' for more information
(qemu) qemu-system-arm: warning: nic lan9118.0 has no peer
qemu: fatal: Lockup: can't escalate 3 to HardFault (current priority -1)

R00=00000005 R01=00000025 R02=00000000 R03=20001298
R04=00000000 R05=00000007 R06=00000000 R07=2000d8b0
R08=00000002 R09=00000000 R10=00000002 R11=00000000
R12=00000000 R13=2000d8b0 R14=000084a7 R15=00003b42
XPSR=41000003 -Z-- T handler
FPSCR: 00000000
  • 14/214 mps2_an385 tests/kernel/arm_irq_vector_table/arch.interrupt FAILED: timeout
    see: sanity-out/mps2_an385/tests/kernel/arm_irq_vector_table/arch.interrupt/handler.log
***** MPU FAULT *****
  Data Access Violation
  MMFAR Address: 0x2001a81c
***** Hardware exception *****
Current thread ID = 0x20014348
Faulting instruction address = 0x5
Fatal fault in essential thread! Spinning...
  • 22/214 mps2_an385 tests/kernel/mem_protect/mem_protect/kernel.memory_protection FAILED: handler_crash
    see: sanity-out/mps2_an385/tests/kernel/mem_protect/mem_protect/kernel.memory_protection/run.log
[100%] [QEMU] CPU: cortex-m3
QEMU 3.1.0 monitor - type 'help' for more information
(qemu) qemu-system-arm: warning: nic lan9118.0 has no peer
qemu: fatal: Lockup: can't escalate 3 to HardFault (current priority -1)

R00=00000005 R01=0000004e R02=00000000 R03=20002780
R04=00000000 R05=00000026 R06=00000000 R07=2002c270
R08=00000002 R09=00000000 R10=00000026 R11=00000000
R12=00000000 R13=2002c270 R14=00027d01 R15=0000b8d2
XPSR=41000003 -Z-- T handler
FPSCR: 00000000
  • 26/214 mps2_an385 tests/kernel/lifo/lifo_usage/kernel.lifo.usage FAILED: timeout
    see: sanity-out/mps2_an385/tests/kernel/lifo/lifo_usage/kernel.lifo.usage/handler.log
===================================================================
starting test - test_timeout_lifo_thread

    Assertion failed at /home/cinlyooi/tests/zephyrproject/zephyr/tests/kernel/lifo/lifo_usage/src/main.c:328: test_timeout_lifo_thread: packet != NULL is false

FAIL - test_timeout_lifo_thread
===================================================================
starting test - test_timeout_threads_pend_on_lifo
 thread (q order: 2, t/o: 0, lifo 0x2001027c)
***** MPU FAULT *****
  Data Access Violation
  MMFAR Address: 0x0
***** Hardware exception *****
Current thread ID = 0x20014b74
Faulting instruction address = 0x25550
Fatal fault in ISR! Spinning...
  • 27/214 mps2_an385 tests/kernel/mem_pool/mem_pool_api/kernel.memory_pool FAILED: timeout
    see: sanity-out/mps2_an385/tests/kernel/mem_pool/mem_pool_api/kernel.memory_pool/handler.log
===================================================================
starting test - test_mpool_alloc_timeout
***** USAGE FAULT *****
  Illegal use of the EPSR
***** Hardware exception *****
Current thread ID = 0x200148a0
Faulting instruction address = 0x2001c11c
Fatal fault in essential thread! Spinning...
  • 36/214 mps2_an385 tests/kernel/mem_protect/stackprot/kernel.memory_protection FAILED: timeout
    see: sanity-out/mps2_an385/tests/kernel/mem_protect/stackprot/kernel.memory_protection/handler.log
***** Booting Zephyr OS v1.14.0-rc3-113-g0c59471436e2 *****
***** MPU FAULT *****
  Stacking error (context area might be not valid)
  Data Access Violation
  MMFAR Address: 0x2001c81c
***** Stack Check Fail! *****
Current thread ID = 0x200143c0
Faulting instruction address = 0x0
Fatal fault in essential thread! Spinning...
  • 39/214 mps2_an385 tests/kernel/mem_protect/userspace/kernel.memory_protection.userspace FAILED: timeout
    see: sanity-out/mps2_an385/tests/kernel/mem_protect/userspace/kernel.memory_protection.userspace/handler.log

No output in handler.log

  • 40/214 mps2_an385 tests/kernel/mutex/sys_mutex/kernel.mutex FAILED: failed
    see: sanity-out/mps2_an385/tests/kernel/mutex/sys_mutex/kernel.mutex/handler.log
starting test - Test kernel Mutex API
===================================================================
***** MPU FAULT *****
  Stacking error (context area might be not valid)
  Data Access Violation
  MMFAR Address: 0x2001cdc0
***** Stack Check Fail! *****
Current thread ID = 0x20010214
Faulting instruction address = 0x0
Fatal fault in thread 0x20010214! Aborting.

    Assertion failed at /home/cinlyooi/tests/zephyrproject/zephyr/tests/kernel/mutex/sys_mutex/src/main.c:284: test_mutex: tc_rc not equal to TC_PASS

This one has GCOV data.

  • 42/214 mps2_an385 tests/kernel/pipe/pipe/kernel.pipe FAILED: failed
    see: sanity-out/mps2_an385/tests/kernel/pipe/pipe/kernel.pipe/handler.log
***** Booting Zephyr OS v1.14.0-rc3-113-g0c59471436e2 *****
Running test suite test_pipe
===================================================================
starting test - test_pipe_on_single_elements
***** MPU FAULT *****
  Data Access Violation
  MMFAR Address: 0x2001ecc8
***** Hardware exception *****
Current thread ID = 0x200145ac
Faulting instruction address = 0x1508
Caught system error -- reason 0
FAIL - test_pipe_on_single_elements
===================================================================
starting test - test_pipe_on_multiple_elements
0x20010408 k_thread in use
syscall z_hdlr_k_thread_create failed check: access denied
***** Hardware exception *****
Current thread ID = 0x200145ac
Faulting instruction address = 0x20010408
Caught system error -- reason 0
FAIL - test_pipe_on_multiple_elements
===================================================================
starting test - test_pipe_forever_wait
0x20010408 k_thread in use
syscall z_hdlr_k_thread_create failed check: access denied
***** Hardware exception *****
Current thread ID = 0x200145ac
Faulting instruction address = 0x20010408
Caught system error -- reason 0
FAIL - test_pipe_forever_wait
===================================================================
starting test - test_pipe_timeout
0x20010408 k_thread in use
syscall z_hdlr_k_thread_create failed check: access denied
***** Hardware exception *****
Current thread ID = 0x200145ac
Faulting instruction address = 0x20010408
Caught system error -- reason 0
FAIL - test_pipe_timeout
===================================================================
starting test - test_pipe_get_on_empty_pipe
PASS - test_pipe_get_on_empty_pipe
===================================================================
starting test - test_pipe_forever_timeout
0x20010408 k_thread in use
syscall z_hdlr_k_thread_create failed check: access denied
***** Hardware exception *****
Current thread ID = 0x200145ac
Faulting instruction address = 0x20010408
Caught system error -- reason 0
FAIL - test_pipe_forever_timeout
===================================================================
starting test - test_pipe_get_timeout
***** MPU FAULT *****
  Data Access Violation
  MMFAR Address: 0x2001eef8
***** Hardware exception *****
Current thread ID = 0x200145ac
Faulting instruction address = 0x329c
Caught system error -- reason 0
FAIL - test_pipe_get_timeout
===================================================================
starting test - test_pipe_get_invalid_size
syscall z_hdlr_k_pipe_get failed check: min_xfer <= bytes_to_read
***** Hardware exception *****
Current thread ID = 0x200145ac
Faulting instruction address = 0x20028080
Caught system error -- reason 0
PASS - test_pipe_get_invalid_size
===================================================================
Test suite test_pipe failed.
===================================================================
PROJECT EXECUTION FAILED

This one has GCOV data

  • 55/214 mps2_an385 tests/kernel/profiling/profiling_api/kernel.profiling FAILED: timeout
    see: sanity-out/mps2_an385/tests/kernel/profiling/profiling_api/kernel.profiling/handler.log
***** BUS FAULT *****
  Precise data bus error
  BFAR Address: 0xaaaaaaaa
***** Hardware exception *****
Current thread ID = 0x20019ef8
Faulting instruction address = 0xe8e6
Fatal fault in thread 0x20019ef8! Aborting.
***** USAGE FAULT *****
  Illegal load of EXC_RETURN into PC
***** Hardware exception *****
Current thread ID = 0x2001439c
Faulting instruction address = 0xa149
Fatal fault in thread 0x2001439c! Aborting.
***** MPU FAULT *****
  Data Access Violation
  MMFAR Address: 0x88
***** Hardware exception *****
Current thread ID = 0x00000000
Faulting instruction address = 0xa846
Fatal fault in ISR! Spinning...
  • 61/214 mps2_an385 tests/kernel/timer/timer_api/kernel.timer FAILED: failed
    see: sanity-out/mps2_an385/tests/kernel/timer/timer_api/kernel.timer/handler.log
===================================================================
starting test - test_timer_duration_period

    Assertion failed at /home/cinlyooi/tests/zephyrproject/zephyr/tests/kernel/timer/timer_api/src/main.c:51: duration_expire: k_uptime_delta(&tdata.timestamp) >= 100 is false

FAIL - test_timer_duration_period
===================================================================

This one has GCOV data

  • 67/214 mps2_an385 tests/kernel/threads/thread_apis/kernel.threads FAILED: timeout
    see: sanity-out/mps2_an385/tests/kernel/threads/thread_apis/kernel.threads/handler.log
    68/214 mps2_an385 tests/subsys/logging/log_core/logging.log_core PASSED
***** Booting Zephyr OS v1.14.0-rc3-113-g0c59471436e2 *****
Running test suite threads_lifecycle
===================================================================
starting test - test_threads_spawn_params
PASS - test_threads_spawn_params
===================================================================
starting test - test_threads_spawn_priority
***** MPU FAULT *****
  Data Access Violation
  MMFAR Address: 0x2001464c
***** Hardware exception *****
Current thread ID = 0x20010208
Faulting instruction address = 0xf166
Fatal fault in thread 0x20010208! Aborting.
***** MPU FAULT *****
  Data Access Violation
  MMFAR Address: 0x2001464c
***** Hardware exception *****
Current thread ID = 0x20010208
Faulting instruction address = 0xf166
Fatal fault in thread 0x20010208! Aborting.
  • 94/214 qemu_x86 tests/kernel/mem_pool/mem_pool_api/kernel.memory_pool FAILED: handler_crash
    see: sanity-out/qemu_x86/tests/kernel/mem_pool/mem_pool_api/kernel.memory_pool/run.log
[100%] [QEMU] CPU: qemu32,+nx,+pae
QEMU 3.1.0 monitor - type 'help' for more information
(qemu) make[4]: *** [zephyr/CMakeFiles/run.dir/build.make:58: zephyr/CMakeFiles/run] Error 1
  • 98/214 qemu_x86 tests/kernel/mem_protect/stackprot/kernel.memory_protection FAILED: handler_crash
    see: sanity-out/qemu_x86/tests/kernel/mem_protect/stackprot/kernel.memory_protection/run.log
[100%] [QEMU] CPU: qemu32,+nx,+pae
QEMU 3.1.0 monitor - type 'help' for more information
(qemu) make[4]: *** [zephyr/CMakeFiles/run.dir/build.make:58: zephyr/CMakeFiles/run] Error 1
  • 114/214 qemu_x86 tests/kernel/pipe/pipe/kernel.pipe FAILED: failed
    see: sanity-out/qemu_x86/tests/kernel/pipe/pipe/kernel.pipe/handler.log
SeaBIOS (version rel-1.12.0-0-ga698c8995f-prebuilt.qemu.org)
Booting from ROM..***** Booting Zephyr OS v1.14.0-rc3-113-g0c59471436e2 *****
Running test suite test_pipe
===================================================================
starting test - test_pipe_on_single_elements
***** CPU Page Fault (error code 0x00000004)
User thread read address 0x00423004
PDE: 0x027 Present, Writable, User, Execute Enabled
PTE: 0x800000002 Non-present, Writable, Supervisor, Execute Disable
Current thread ID = 0x0040a0a0
eax: 0x00423004, ebx: 0x00410033, ecx: 0x00000000, edx: 0x00000000
esi: 0x00000000, edi: 0x00418fe8, ebp: 0x00418f64, esp: 0x00418f4c
eflags: 0x00000202 cs: 0x002b
call trace:
eip: 0x000027e1
     0x00004a94 (0x0)
     0x00012548 (0x0)
     0x000127a9 (0x409000)
     0x00008cf0 (0x409000)
Caught system error -- reason 6
FAIL - test_pipe_on_single_elements
===================================================================
starting test - test_pipe_on_multiple_elements
0x0040a000 k_thread in use
syscall z_hdlr_k_thread_create failed check: access denied
***** Kernel OOPS! *****
Current thread ID = 0x0040a0a0
eax: 0x00000000, ebx: 0x00000000, ecx: 0x00000000, edx: 0x00000000
esi: 0x00000000, edi: 0x00000000, ebp: 0x00000000, esp: 0x00418e78
eflags: 0x00000246 cs: 0x002b
call trace:
eip: 0x00001bb6
NULL base ptr
Caught system error -- reason 7
FAIL - test_pipe_on_multiple_elements
===================================================================
starting test - test_pipe_forever_wait
0x0040a000 k_thread in use
syscall z_hdlr_k_thread_create failed check: access denied
***** Kernel OOPS! *****
Current thread ID = 0x0040a0a0
eax: 0x00000000, ebx: 0x00000000, ecx: 0x00000000, edx: 0x00000000
esi: 0x00000000, edi: 0x00000000, ebp: 0x00000000, esp: 0x00418e78
eflags: 0x00000246 cs: 0x002b
call trace:
eip: 0x00001bb6
NULL base ptr
Caught system error -- reason 7
FAIL - test_pipe_forever_wait
===================================================================
starting test - test_pipe_timeout
0x0040a000 k_thread in use
syscall z_hdlr_k_thread_create failed check: access denied
***** Kernel OOPS! *****
Current thread ID = 0x0040a0a0
eax: 0x00000000, ebx: 0x00000000, ecx: 0x00000000, edx: 0x00000000
esi: 0x00000000, edi: 0x00000000, ebp: 0x00000000, esp: 0x00418e78
eflags: 0x00000246 cs: 0x002b
call trace:
eip: 0x00001bb6
NULL base ptr
Caught system error -- reason 7
FAIL - test_pipe_timeout
===================================================================
starting test - test_pipe_get_on_empty_pipe
PASS - test_pipe_get_on_empty_pipe
===================================================================
starting test - test_pipe_forever_timeout
0x0040a000 k_thread in use
syscall z_hdlr_k_thread_create failed check: access denied
***** Kernel OOPS! *****
Current thread ID = 0x0040a0a0
eax: 0x00000000, ebx: 0x00000000, ecx: 0x00000000, edx: 0x00000000
esi: 0x00000000, edi: 0x00000000, ebp: 0x00000000, esp: 0x00418e78
eflags: 0x00000246 cs: 0x002b
call trace:
eip: 0x00001bb6
NULL base ptr
Caught system error -- reason 7
FAIL - test_pipe_forever_timeout
===================================================================
starting test - test_pipe_get_timeout
***** CPU Page Fault (error code 0x00000004)
User thread read address 0x00423244
PDE: 0x027 Present, Writable, User, Execute Enabled
PTE: 0x800000002 Non-present, Writable, Supervisor, Execute Disable
Current thread ID = 0x0040a0a0
eax: 0x00423244, ebx: 0x00410033, ecx: 0x00000000, edx: 0x00000000
esi: 0x00000000, edi: 0x00418fe8, ebp: 0x00418f74, esp: 0x00418f5c
eflags: 0x00000206 cs: 0x002b
call trace:
eip: 0x00004786
     0x00004ffd (0x0)
     0x00012548 (0x0)
     0x000127a9 (0x409078)
     0x00008cf0 (0x409078)
Caught system error -- reason 6
FAIL - test_pipe_get_timeout
===================================================================
starting test - test_pipe_get_invalid_size
syscall z_hdlr_k_pipe_get failed check: min_xfer <= bytes_to_read
***** Kernel OOPS! *****
Current thread ID = 0x0040a0a0
eax: 0x00000000, ebx: 0x00000000, ecx: 0x00000000, edx: 0x00000000
esi: 0x00000000, edi: 0x00000000, ebp: 0x00000000, esp: 0x00418ef0
eflags: 0x00000246 cs: 0x002b
call trace:
eip: 0x00001bb6
NULL base ptr
Caught system error -- reason 7
PASS - test_pipe_get_invalid_size
===================================================================
Test suite test_pipe failed.
===================================================================
PROJECT EXECUTION FAILED

GCOV_COVERAGE_DUMP_START
GCOV_COVERAGE_DUMP_END
  • 169/214 qemu_x86_nommu tests/kernel/mem_protect/stackprot/kernel.memory_protection FAILED: handler_crash
    see: sanity-out/qemu_x86_nommu/tests/kernel/mem_protect/stackprot/kernel.memory_protection/run.log
[100%] [QEMU] CPU: qemu32,+nx,+pae
QEMU 3.1.0 monitor - type 'help' for more information
(qemu) make[4]: *** [zephyr/CMakeFiles/run.dir/build.make:58: zephyr/CMakeFiles/run] Error 1

179/214 qemu_x86_nommu tests/kernel/mutex/sys_mutex/kernel.mutex FAILED: failed
see: sanity-out/qemu_x86_nommu/tests/kernel/mutex/sys_mutex/kernel.mutex/handler.log

SeaBIOS (version rel-1.12.0-0-ga698c8995f-prebuilt.qemu.org)
Booting from ROM..***** Booting Zephyr OS v1.14.0-rc3-113-g0c59471436e2 *****
Running test suite mutex_complex
===================================================================
starting test - test_mutex
starting test - Test kernel Mutex API
===================================================================
***** CPU exception 6
Current thread ID = 0x00404440
eax: 0x00000000, ebx: 0x00000000, ecx: 0x00000001, edx: 0x00000000
esi: 0x00000000, edi: 0x000046c1, ebp: 0x0040d0dc, esp: 0x0040d0c4
eflags: 0x00000246 cs: 0x0008
call trace:
eip: 0x0000004c
     0x00000046 (0x40d0fc)
     0x00000046 (0x40c6f0)
     0x000154b8 (0x46)
     0x0001607a (0x40c738)
     0x0000ffea (0x0)
     0x0000f005 (0x46)
     0x0040d21c (0x0)
unaligned frame ptr
Fatal fault in thread 0x00404440! Aborting.

    Assertion failed at /home/cinlyooi/tests/zephyrproject/zephyr/tests/kernel/mutex/sys_mutex/src/main.c:281: test_mutex: (rv not equal to priority[i])
expected priority 8, not 9

FAIL - test_mutex
===================================================================
Test suite mutex_complex failed.
===================================================================
PROJECT EXECUTION FAILED

GCOV_COVERAGE_DUMP_START
GCOV_COVERAGE_DUMP_END
***** CPU exception 5
Current thread ID = 0x00404400
eax: 0x00000046, ebx: 0x000085bb, ecx: 0x00404600, edx: 0x004045c0
esi: 0x0040ce68, edi: 0x00008784, ebp: 0x0040ce48, esp: 0x0040ce44
eflags: 0x00000882 cs: 0x0008
call trace:
eip: 0x0040c6f4
     0x000088c4 (0x46)
     0x00008d5e (0x40c6f0)
     0x0001607a (0x40c738)
     0x0000ffea (0x0)
     0x0000fb1c (0x246)
unaligned frame ptr
Fatal fault in thread 0x00404400! Aborting.
FAIL - thread_05@83. Failed to timeout on mutex 0x40f7d8
***** Unhandled interrupt vector *****
Current thread ID = 0x004043c0
eax: 0x00404600, ebx: 0x00000046, ecx: 0x0001607a, edx: 0x004045c0
esi: 0x0040cc68, edi: 0x00015f6d, ebp: 0x0040c738, esp: 0x0040cc44
eflags: 0x00000593 cs: 0x0008
call trace:
eip: 0x00404624
Fatal fault in thread 0x004043c0! Aborting.

214/214 qemu_x86_nommu tests/kernel/threads/thread_init/kernel.threads FAILED: timeout
see: sanity-out/qemu_x86_nommu/tests/kernel/threads/thread_init/kernel.threads/handler.log

eaBIOS (version rel-1.12.0-0-ga698c8995f-prebuilt.qemu.org)
Booting from ROM..***** Booting Zephyr OS v1.14.0-rc3-113-g0c59471436e2 *****
Running test suite thread_init
===================================================================
starting test - test_kdefine_preempt_thread
PASS - test_kdefine_preempt_thread
===================================================================
starting test - test_kdefine_coop_thread
@cinlyooi-intel cinlyooi-intel added the bug The issue is a bug, or the PR is fixing a bug label Apr 5, 2019
@cinlyooi-intel cinlyooi-intel changed the title sanitycheck --coverage: stack overflows on qemu_x86 and mps2_an385 sanitycheck --coverage: stack overflows on qemu_x86, mps2_an385 and qemu_x86_nommu Apr 5, 2019
@nashif nashif added the priority: low Low impact/importance bug label Apr 5, 2019
@wentongwu wentongwu self-assigned this Apr 6, 2019
@wentongwu wentongwu mentioned this issue Apr 9, 2019
Merged
wentongwu added a commit to wentongwu/zephyr that referenced this issue Apr 9, 2019
@wentongwu
tests: adjust stack size for qemu_x86's coverage test
a517b7e 
for SDK 0.10.0, it consumes more stack size when coverage
enabled, so adjust stack size to fix stack overflow issue.

Fixes: zephyrproject-rtos#15206.

Signed-off-by: Wentong Wu <[email protected]>
wentongwu added a commit to wentongwu/zephyr that referenced this issue Apr 9, 2019
@wentongwu
tests: adjust stack size for mps2_an385's coverage test
dc5be60 
for SDK 0.10.0, it consumes more stack size when coverage
enabled, so adjust stack size to fix stack overflow issue.

Fixes: zephyrproject-rtos#15206.

Signed-off-by: Wentong Wu <[email protected]>
nashif pushed a commit that referenced this issue Apr 11, 2019
@wentongwu @nashif
tests: adjust stack size for qemu_x86's coverage test
3e255e9 
for SDK 0.10.0, it consumes more stack size when coverage
enabled, so adjust stack size to fix stack overflow issue.

Fixes: #15206.

Signed-off-by: Wentong Wu <[email protected]>
nashif pushed a commit that referenced this issue Apr 11, 2019
@wentongwu @nashif
tests: adjust stack size for mps2_an385's coverage test
22c9646 
for SDK 0.10.0, it consumes more stack size when coverage
enabled, so adjust stack size to fix stack overflow issue.

Fixes: #15206.

Signed-off-by: Wentong Wu <[email protected]>
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tests: adjust stack size for mps2_an385's coverage test wentongwu/zephyr
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