Hotspot segfaulting on Linux SPARC

[David Holmes]

On 18/04/2018 1:23 AM, John Paul Adrian Glaubitz wrote:
> 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

So you can run okay with -XX:-ThreadLocalHandshakes ?

David

> 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
>