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8fab3c6d30
This avoids the test harness being terminated like: make[1]: *** [Makefile:24419: check-recursive] Hangup make[3]: *** [Makefile:24668: check-TESTS] Hangup make: *** [Makefile:24922: check] Hangup make[2]: *** [Makefile:24920: check-am] Hangup make[4]: *** [Makefile:24685: tests/misc/usage_vs_refs.log] Error 129 ... This happened sometimes when the tests were being run non interactively. For example when run like: setsid make TESTS="tests/timeout/timeout.sh \ tests/tail/overlay-headers.sh" SUBDIRS=. -j2 check Note the race window can be made bigger by adding a sleep after tail is stopped in overlay-headers.sh The race can trigger the kernel to induce its job control mechanism to prevent stuck processes. I.e. where it sends SIGHUP + SIGCONT to a process group when it determines that group may become orphaned, and there are stopped processes in that group. * tests/tail/overlay-headers.sh: Use setsid(1) to keep the stopped tail process in a separate process group, thus avoiding any kernel job control protection mechanism. * tests/timeout/timeout.sh: Use setsid(1) to avoid the kernel checking the main process group when sleep(1) is reparented. Fixes https://bugs.gnu.org/80477
91 lines
3.0 KiB
Bash
Executable File
91 lines
3.0 KiB
Bash
Executable File
#!/bin/sh
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# Validate timeout basic operation
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# Copyright (C) 2008-2026 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ timeout
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require_trap_signame_
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# no timeout
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timeout 10 true || fail=1
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# no timeout (suffix check)
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timeout 1d true || fail=1
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# disabled timeout
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timeout 0 true || fail=1
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# exit status propagation
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returns_ 2 timeout 10 sh -c 'exit 2' || fail=1
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# timeout
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returns_ 124 timeout .1 sleep 10 || fail=1
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# exit status propagation even on timeout
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# exit status should be 128+TERM
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returns_ 124 timeout --preserve-status .1 sleep 10 && fail=1
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# kill delay. Note once the initial timeout triggers,
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# the exit status will be 124 even if the command
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# exits on its own accord.
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# exit status should be 128+KILL
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returns_ 124 timeout -s0 -k1 .1 sleep 10 && fail=1
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# Ensure a consistent exit status with --foreground
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returns_ 124 timeout --foreground -s0 -k1 .1 sleep 10 && fail=1
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# Ensure 'timeout' is immune to parent's SIGCHLD handler
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# Use a subshell and an exec to work around a bug in FreeBSD 5.0 /bin/sh.
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(
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trap '' CHLD
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exec timeout 10 true
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) || fail=1
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# Don't be confused when starting off with a child (Bug#9098).
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# Use setsid to avoid sleep being in the test's process group, as
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# upon reparenting it can trigger an orphaned process group SIGHUP
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# (if there were stopped processes like in tests/tail/overlay-headers.sh).
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if setsid true; then
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out=$(setsid sleep .1 & exec timeout .5 sh -c 'sleep 2; echo foo')
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status=$?
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test "$out" = "" && test $status = 124 || fail=1
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fi
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# Verify --verbose output
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cat > exp <<\EOF
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timeout: sending signal 0 to command 'sleep'
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timeout: sending signal KILL to command 'sleep'
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EOF
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for opt in -v --verbose; do
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timeout $opt -s0 -k .1 .1 sleep 10 2> errt
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sed '/^Killed/d' < errt > err || framework_failure_
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compare exp err || fail=1
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done
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# Ensure we propagate all terminating signals.
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# Specifically here we're testing that SIGPIPE is handled.
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# I.e., that we're not killed by the SIGPIPE (and leave the sleep running).
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# timeout would exit with 141 usually if SIGPIPE wasn't being handled.
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echo 124 > timeout.exp || framework_failure_
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{ timeout -v .1 sleep 10 2>&1; echo $? >timeout.status; } | :
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compare timeout.exp timeout.status || fail=1
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# Ensure we don't catch/propagate ignored signals
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(trap '' PIPE && timeout 10 yes |:) 2>&1 |
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grep 'Broken pipe' >/dev/null || fail=1
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Exit $fail
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