James Peach created MESOS-9212:
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Summary: Subprocess tests fail with libev 4.24
Key: MESOS-9212
URL: https://issues.apache.org/jira/browse/MESOS-9212
Project: Mesos
Issue Type: Bug
Reporter: James Peach
On Fedora 28, building against the system version of libev (version 4.24)
causes the following tests to fail:
The following tests fail:
{noformat}
[ FAILED ] ReapTest.NonChildProcess
[ FAILED ] ReapTest.ChildProcess
[ FAILED ] ReapTest.TerminatedChildProcess
[ FAILED ] SubprocessTest.PipeOutputToFileDescriptor
[ FAILED ] SubprocessTest.PipeOutputToPath
[ FAILED ] SubprocessTest.EnvironmentEcho
[ FAILED ] SubprocessTest.Status
[ FAILED ] SubprocessTest.PipeOutput
[ FAILED ] SubprocessTest.PipeLargeOutput
[ FAILED ] SubprocessTest.PipeInput
[ FAILED ] SubprocessTest.PipeRedirect
[ FAILED ] SubprocessTest.PathOutput
[ FAILED ] SubprocessTest.PathInput
[ FAILED ] SubprocessTest.FdOutput
[ FAILED ] SubprocessTest.FdInput
[ FAILED ] SubprocessTest.Default
[ FAILED ] SubprocessTest.Flags
[ FAILED ] SubprocessTest.Environment
[ FAILED ] SubprocessTest.EnvironmentWithSpaces
[ FAILED ] SubprocessTest.EnvironmentWithSpacesAndQuotes
[ FAILED ] SubprocessTest.EnvironmentOverride
{noformat}
This build configuration succeeds:
{noformat}
$ ../configure --disable-java --disable-python --enable-silent-rules
--disable-hardening --disable-werror --disable-libtool-wrappers
--enable-xfs-disk-isolator --enable-install-module-dependencies
--enable-port-mapping-isolator --enable-network-ports-isolator
--with-protobuf=/usr --with-curl=/usr --with-libarchive=/usr
--with-zookeeper=/usr --prefix=/opt/mesos "CXXFLAGS=-O0 -ggdb3
-fno-omit-frame-pointer -fvisibility-inlines-hidden -Wno-unused-local-typedefs
-Wno-deprecated" "CFLAGS=-O0 -ggdb3 -fno-omit-frame-pointer
-Wno-unused-local-typedefs -Wno-deprecated" LDFLAGS=
CXX=/home/jpeach/src/asf-mesos/build/c++ CC=/home/jpeach/src/asf-mesos/build/cc
LD=/home/jpeach/src/asf-mesos/build/ld
{noformat}
This build configuration fails:
{noformat}
$ ../configure --disable-java --disable-python --enable-silent-rules
--disable-hardening --disable-werror --disable-libtool-wrappers
--enable-xfs-disk-isolator --enable-install-module-dependencies
--enable-port-mapping-isolator --enable-network-ports-isolator
--with-protobuf=/usr --with-curl=/usr --with-libarchive=/usr
--with-zookeeper=/usr --prefix=/opt/mesos "CXXFLAGS=-O0 -ggdb3
-fno-omit-frame-pointer -fvisibility-inlines-hidden -Wno-unused-local-typedefs
-Wno-deprecated" "CFLAGS=-O0 -ggdb3 -fno-omit-frame-pointer
-Wno-unused-local-typedefs -Wno-deprecated" LDFLAGS=
CXX=/home/jpeach/src/asf-mesos/build/c++ CC=/home/jpeach/src/asf-mesos/build/cc
LD=/home/jpeach/src/asf-mesos/build/ld --with-libev=/usr
{noformat}
I think what happens here is that the child process gets reaped wrongly somehow:
{noformat}
[==========] Running 1 test from 1 test case.
[----------] Global test environment set-up.
[----------] 1 test from SubprocessTest
[ RUN ] SubprocessTest.EnvironmentWithSpaces
[pid 25909] clone(child_stack=NULL,
flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD,
child_tidptr=0x7fa11881fcd0) = 25923
strace: Process 25923 attached
[pid 25923] execve("/usr/bin/sh", ["sh", "-c", "echo $MESSAGE"], 0x1ff3950 /* 1
var */) = 0
[pid 25923] arch_prctl(ARCH_SET_FS, 0x7f24561c5740) = 0
[pid 25923] exit_group(0) = ?
[pid 25923] +++ exited with 0 +++
[pid 25909] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=25923,
si_uid=9306, si_status=0, si_utime=0, si_stime=0} ---
[pid 25922] wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}],
WNOHANG|WSTOPPED|WCONTINUED, NULL) = 25923
[pid 25922] wait4(-1, 0x7fa10a74da44, WNOHANG|WSTOPPED|WCONTINUED, NULL) = -1
ECHILD (No child processes)
[pid 25919] wait4(25923, 0x7fa10bf50548, WNOHANG, NULL) = -1 ECHILD (No child
processes)
../../../3rdparty/libprocess/src/tests/subprocess_tests.cpp:977: Failure
(s->status()).get() is NONE
[ FAILED ] SubprocessTest.EnvironmentWithSpaces (12 ms)
[----------] 1 test from SubprocessTest (12 ms total)
[----------] Global test environment tear-down
[==========] 1 test from 1 test case ran. (12 ms total)
[ PASSED ] 0 tests.
[ FAILED ] 1 test, listed below:
[ FAILED ] SubprocessTest.EnvironmentWithSpaces
{noformat}
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