RFR: 8230228: [TESTBUG] Several runtime/ErrorHandling tests may fail on some platforms

[Jie Fu]

Hi all,

JBS:    https://bugs.openjdk.java.net/browse/JDK-8230228
Webrev: http://cr.openjdk.java.net/~jiefu/8230228/webrev.00/

These tests failed on our mips Fedora-21 platform.
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jtreg:test/hotspot/jtreg/runtime/ErrorHandling/TimeoutInErrorHandlingTest.java
jtreg:test/hotspot/jtreg/runtime/ErrorHandling/ErrorFileRedirectTest.java
jtreg:test/hotspot/jtreg/runtime/ErrorHandling/BadNativeStackInErrorHandlingTest.java
jtreg:test/hotspot/jtreg/runtime/ErrorHandling/SafeFetchInErrorHandlingTest.java
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The reason is that memory access to address 0xABC0000000000ABCULL, which 
is returned by VMError::get_segfault_address() [1], trigers SIGBUS, not 
SIGSEGV, on our platform.
Please note that it seems there is no way to guarantee to generate 
SIGSEGV by accessing an specific invalid memory address for all 
platforms [2].
Could you please review it and give me some advice?

Thanks a lot.
Best regards,
Jie

[1] 
http://hg.openjdk.java.net/jdk/jdk/file/cb836bd08d58/src/hotspot/share/utilities/vmError.cpp#l68
[2] 
http://hg.openjdk.java.net/jdk/jdk/file/cb836bd08d58/src/hotspot/os_cpu/bsd_x86/os_bsd_x86.cpp#l579