Hotspot segfaulting on Linux SPARC

[John Paul Adrian Glaubitz]

On 04/17/2018 02:33 AM, David Holmes wrote:
> Though also see:
> 
> https://bugs.openjdk.java.net/browse/JDK-8201592
> 
> which seems to be the same secondary crash - but can't comment on the primary one.
This seems to be theculprit: http://hg.openjdk.java.net/jdk/hs/rev/0ce0ac68ace7

And this is a potential fix, although I need to perform more testing:

diff --git a/src/hotspot/os_cpu/linux_sparc/os_linux_sparc.cpp b/src/hotspot/os_cpu/linux_sparc/os_linux_sparc.cpp
index ef4ae04c119..958833305d9 100644
--- a/src/hotspot/os_cpu/linux_sparc/os_linux_sparc.cpp
+++ b/src/hotspot/os_cpu/linux_sparc/os_linux_sparc.cpp
@@ -373,7 +373,7 @@ inline static bool checkOverflow(sigcontext* uc,
  }
  
  inline static bool checkPollingPage(address pc, address fault, address* stub) {
-  if (fault == os::get_polling_page()) {
+  if (os::is_poll_address(fault)) {
      *stub = SharedRuntime::get_poll_stub(pc);
      return true;
    }

Adrian

-- 
  .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz at debian.org
`. `'   Freie Universitaet Berlin - glaubitz at physik.fu-berlin.de
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