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test: retry signal tests with SIGALRM no OSX

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By some reason even after first ALRM signal received and event loop
returned it is possible to recieve an ALRM one more time (at least one):

    % yes signal/simple_signal.. | head -n 1000 | xargs -I{} -P10 sh -c 'EVENT_DEBUG_LOGGING_ALL= bin/regress --timeout 0 --verbose {} >& /tmp/test.$SECONDS.$RANDOM.log'
    % cat /tmp/test.0.18384.log
    signal/simple_signal: [forking] [debug] event_add: event: 0x16d70f368 (fd 14),     call 0x102704ae8
    [debug] evsig_ensure_saved_: evsignal (14) >= sh_old_max (0), resizing

             OK /Users/ec2-user/libevent/test/regress.c:1086: assert(setitimer(ITIMER_REAL, &itv, NULL) == 0): 0 vs 0[debug] kq_dispatch: kevent reports 1
    [debug] event_active: 0x16d70f368 (fd 14), res 8, callback 0x102704ae8
    [debug] event_process_active: event: 0x16d70f368,    call 0x102704ae8
    [debug] event_del: 0x16d70f368 (fd 14), callback 0x102704ae8
    [debug] event_base_loop: no events registered.

      FAIL /Users/ec2-user/libevent/test/regress.c:1062: ALRM received not from event loop![debug] event_del: 0x16d70f368 (fd 14), callback 0x102704ae8
    [debug] event_base_free_: 0 events freed
    signal/simple_signal: exited with 0 (0)

      [FAILED signal/simple_signal (0 retries)]
    signal/simple_signal_re_order: [forking] [debug] event_add: event: 0x16d70f368 (fd 14),     call 0x102704ae8
    [debug] evsig_ensure_saved_: evsignal (14) >= sh_old_max (0), resizing
    [debug] event_del: 0x16d70f368 (fd 14), callback 0x102704ae8
    [debug] event_add: event: 0x16d70f368 (fd 14),     call 0x102704ae8

             OK /Users/ec2-user/libevent/test/regress.c:1086: assert(setitimer(ITIMER_REAL, &itv, NULL) == 0): 0 vs 0[debug] kq_dispatch: kevent reports 1
    [debug] event_active: 0x16d70f368 (fd 14), res 8, callback 0x102704ae8
    [debug] event_process_active: event: 0x16d70f368,    call 0x102704ae8
    [debug] event_del: 0x16d70f368 (fd 14), callback 0x102704ae8
    [debug] event_base_loop: no events registered.
    [debug] event_del: 0x16d70f368 (fd 14), callback 0x102704ae8
    [debug] event_base_free_: 0 events freed
    signal/simple_signal_re_order: exited with 0 (0)

    1/2 TESTS FAILED. (0 skipped)

Also note, that the problem not only when I run two tests, but only one
as well:

    % bin/regress --timeout 0 --repeat 1000 --verbose --no-fork signal/simple_signal >/tmp/test2.log 2>&1
    signal/simple_signal:
             OK /Users/ec2-user/libevent/test/regress.c:1086: assert(setitimer(ITIMER_REAL, &itv, NULL) == 0): 0 vs 0
    signal/simple_signal:
             OK /Users/ec2-user/libevent/test/regress.c:1086: assert(setitimer(ITIMER_REAL, &itv, NULL) == 0): 0 vs 0
      FAIL /Users/ec2-user/libevent/test/regress.c:1062: ALRM received not from event loop!

I've tried to run under "ktrace trace -Ss -f C4,S0x010c -c" but of
course it does not fails under it (dtruss by some reason did not work
for me).

P.S. Also remove one TT_RETRIABLE for one test, since only setitimer()
causes this.
This commit is contained in:
Azat Khuzhin 2024-10-28 22:20:10 +01:00
parent 29a3eee5ca
commit 25fa9c7732
1 changed files with 3 additions and 1 deletions
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4
test/regress.c
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@ -3784,6 +3784,8 @@ struct testcase_t evtag_testcases[] = {
END_OF_TESTCASES
};
/* Apparently there is a bug in OSX that leads to subsequent ALRM signal
* delievered even though it_interval is set to 0, so let's retry the tests */
#if defined(__APPLE__)
#define RETRY_ON_DARWIN TT_RETRIABLE
#else
@ -3803,7 +3805,7 @@ struct testcase_t signal_testcases[] = {
LEGACY(signal_restore, TT_ISOLATED),
LEGACY(signal_assert, TT_ISOLATED),
LEGACY(signal_while_processing, TT_ISOLATED),
BASIC(signal_free_in_callback, TT_FORK|TT_NEED_BASE|RETRY_ON_DARWIN),
BASIC(signal_free_in_callback, TT_FORK|TT_NEED_BASE),
#endif
END_OF_TESTCASES
};