context_switch1_threads: tests/context_switch1.c:33: child: Assertion `ret == 1' failed.

[ZhengjunXing]

Hi,
When I run the context_switch1 test case, it always has "Assertion `ret == 1' failed" error logs print.
Is it a bug in the context_switch1 test case or anything I miss set in my test environment? Thanks.

./runtest.py context_switch1

tasks,processes,processes_idle,threads,threads_idle,linear
0,0,100,0,100,0
1,68256,95.36,66138,94.85,68256
2,76699,90.28,73780,89.28,136512
3,84784,85.62,81063,83.96,204768
4,88903,80.67,84356,78.38,273024
5,88330,75.48,85081,72.51,341280
6,85265,70.19,81569,66.29,409536
7,58732,64.09,55989,59.40,477792
8,47108,57.85,44998,52.48,546048
9,42748,52.49,41092,45.95,614304
10,41694,45.56,39321,38.94,682560
context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed. Aborted (core dumped) 11,39928,39.31,-1,32.14,750816 12,39229,23.49,37818,21.88,819072 context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed.
Aborted (core dumped)
13,40762,29.42,-1,21.74,887328
context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed. context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed.
Aborted (core dumped)
14,42321,27.15,-1,19.65,955584
context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed. Aborted (core dumped) 15,43718,24.91,-1,17.53,1023840 context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed.
context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed. Aborted (core dumped) 16,45299,22.78,-1,15.62,1092096 context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed.
Aborted (core dumped)
17,46794,20.72,-1,13.85,1160352
context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed. context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed.
context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed. Aborted (core dumped) 18,48335,18.68,-1,12.17,1228608 context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed.
context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed. Aborted (core dumped) 19,50144,16.81,-1,10.37,1296864 context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed.
context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed. Aborted (core dumped) 20,51297,15.15,-1,8.61,1365120 context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed.
context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed. context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed.
Aborted (core dumped)
21,52643,13.47,-1,7.00,1433376
context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed. context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed.
context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed. Aborted (core dumped) 22,53904,11.86,-1,5.52,1501632 context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed.
context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed. context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed.
Aborted (core dumped)
23,55055,10.40,-1,4.14,1569888
context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed. context_switch1_threads: tests/context_switch1.c:33: child: Assertion ret == 1' failed.
Aborted (core dumped)
24,56513,9.05,-1,2.79,1638144

ulimit -a

core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 190679
max locked memory (kbytes, -l) 65536
max memory size (kbytes, -m) unlimited
open files (-n) 1048576
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 1048576
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited