[MESOS-3540] Libevent termination triggers Broken Pipe

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Component/s: libprocess
• Labels: libevent libprocess mesosphere
• Target Version/s: 0.26.0
• Sprint: Mesosphere Sprint 20
• Story Points: 2
• Assignee: Joris Van Remoortere
• Reporter: Joris Van Remoortere
• Created: 28/Sep/15 22:44
• Updated: 26/Nov/18 12:20
• Resolved: 26/Nov/18 12:20

Description

When the libevent loop terminates and we unblock the SIGPIPE signal, the pending SIGPIPE instantly triggers and causes a broken pipe when the test binary stops running.

Program received signal SIGPIPE, Broken pipe.
[Switching to Thread 0x7ffff18b4700 (LWP 16270)]
pthread_sigmask (how=1, newmask=<optimized out>, oldmask=0x7ffff18b3d80) at ../sysdeps/unix/sysv/linux/pthread_sigmask.c:53
53	../sysdeps/unix/sysv/linux/pthread_sigmask.c: No such file or directory.
(gdb) bt
#0  pthread_sigmask (how=1, newmask=<optimized out>, oldmask=0x7ffff18b3d80) at ../sysdeps/unix/sysv/linux/pthread_sigmask.c:53
#1  0x00000000006fd9a4 in unblock () at ../../../3rdparty/libprocess/3rdparty/stout/include/stout/os/posix/signals.hpp:90
#2  0x00000000007d7915 in run () at ../../../3rdparty/libprocess/src/libevent.cpp:125
#3  0x00000000007950cb in _M_invoke<>(void) () at /usr/include/c++/4.9/functional:1700
#4  0x0000000000795000 in operator() () at /usr/include/c++/4.9/functional:1688
#5  0x0000000000794f6e in _M_run () at /usr/include/c++/4.9/thread:115
#6  0x00007ffff668de30 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#7  0x00007ffff79a16aa in start_thread (arg=0x7ffff18b4700) at pthread_create.c:333
#8  0x00007ffff5df1eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109