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

[Mikhailo Seledtsov]

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
>
>