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

[coleen.phillimore at oracle.com]

This looks good.
Coleen

On 8/27/19 2:22 PM, Mikhailo Seledtsov wrote:
> Looks good to me,
>
> (Not a Reviewer),
>
> Misha
>
> On 8/27/19, 5:56 AM, Jie Fu wrote:
>> 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.
>> ----------------------------------------------
>> 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 
>>
>> ----------------------------------------------
>>
>> 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
>>
>>