[Bug 60215]  esync: eventfd() exhaustion (EMFILE) on sync object creation not handled gracefully, propagates as guest null-pointer crash

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=60215

--- Comment #5 from Aydar Kamaltdinov <[e-mail]> ---
Empirical verification (200-iteration loop, measuring wineserver's
/proc/<pid>/fd eventfd count)
  -------
  Scenario: 200x CreateThread WITHOUT CloseHandle
    Before fix: 852 (baseline ~452 + 200x2)
    After fix:  853 (unchanged -- object never destroyed, expected)

  Scenario: 200x CreateThread WITH CloseHandle (correct app code)
    Before fix: 652 (baseline ~452 + 200x1 -- leaking despite fully correct
code)
    After fix:  453 (= baseline, ZERO leak)

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