JDK-8219611 : Remove superfluous sigfillset code
  • Type: Enhancement
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 10,11,12,13
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • Submitted: 2019-02-23
  • Updated: 2019-02-28
  • Resolved: 2019-02-23
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JDK 13
13 b10Fixed
Related Reports
Relates :  
JDK-8190308 - Implementation: JEP 316: Heap Allocation on Alternative Memory Devices
Description
As part of JDK-8190308 the following code was added to os_posix.cpp (in os::create_file_for_heap):

48153:   sigset_t set, oldset;
48153:   int ret = sigfillset(&set);
48153:   assert_with_errno(ret == 0, "sigfillset returned error");

The "set" and "oldset" variables are not used later in the function, and sigfillset only affects the "set" variable, so this code is effectively a no-op.