Details
Description
http://buildbot.askmonty.org/buildbot/builders/kvm-fulltest/builds/12607
unit.my_atomic w4 [ fail ]
|
Test ended at 2018-03-26 03:43:54
|
|
|
CURRENT_TEST: unit.my_atomic
|
# N CPUs: 4, atomic ops: gcc-atomics-smp
|
1..6
|
ok 1 - my_atomic_initialize() returned 0
|
# Testing my_atomic_add32 with 30 threads, 3000 iterations...
|
Bail out! Signal 11 thrown
|
# 6 tests planned, 0 failed, 1 was last executed
|
|
|
|
|
mysqltest failed with unexpected return code 255
|
Attachments
Issue Links
- is duplicated by
-
MDEV-12897 unit.lf failed in buildbot
-
- Closed
-
Activity
What I observe looks like a glibc bug. For me (ubuntu xenial) it crashes as following:
#0 0x00007fd1becd430d in nanosleep () at ../sysdeps/unix/syscall-template.S:84
|
#1 0x00007fd1becd425a in __sleep (seconds=0) at ../sysdeps/posix/sleep.c:55
|
#2 0x0000560fa9bd5e2c in handle_core_signal (signo=11) at /home/svoj/devel/maria/mariadb/unittest/mytap/tap.c:134
|
#3 <signal handler called>
|
#4 __pthread_create_2_1 (newthread=<optimized out>, attr=<optimized out>, start_routine=<optimized out>, arg=<optimized out>) at pthread_create.c:713
|
#5 0x0000560fa9bd5603 in test_concurrently (test=0x560fa9c29949 "my_atomic_add64", handler=0x560fa9bd58ab <test_atomic_add64>, n=3, m=3000) at /home/svoj/devel/maria/mariadb/unittest/mysys/thr_template.c:40
|
#6 0x0000560fa9bd5cd4 in do_tests () at /home/svoj/devel/maria/mariadb/unittest/mysys/my_atomic-t.c:144
|
#7 0x0000560fa9bd57ae in main (argc=1, argv=0x7ffc289d02a8) at /home/svoj/devel/maria/mariadb/unittest/mysys/thr_template.c:72
|
The solution is to upgrade builders. A workaround is to make threads joinable (which will make code better anyway).
For details see https://bugs.mysql.com/bug.php?id=82886
Reproducible with: while [ $? -eq 0 ]; do ../unittest/mysys/my_atomic-t; done