Hotspot segfaulting on Linux SPARC

[Aleksey Shipilev]

On 04/06/2018 03:23 PM, John Paul Adrian Glaubitz wrote:
> On 04/06/2018 03:16 PM, Zhengyu Gu wrote:
>> I think it is symptom, the real cause is:
>>
>> In CPUinfo constructor:
>>
>> _string = strdup(vstr);
>>
>> should be:
>>
>> _string = os::strdup(vstr, mtInternal);
> 
> I changed that and now it seems I'm getting a different failure which
> is an assertion failure:
> 
> # To suppress the following error report, specify this argument
> # after -XX: or in .hotspotrc:  SuppressErrorAt=/assembler_sparc.cpp:52
> #
> # A fatal error has been detected by the Java Runtime Environment:
> #
> #  Internal Error (/srv/openjdk/hs/src/hotspot/cpu/sparc/assembler_sparc.cpp:52), pid=18170, tid=18201
> #  assert(!(is_cti(prev) && is_cti(insn))) failed: CTI-CTI not allowed.

Now, this looks like pipeline verification failure (enabled with ASSERT/VERIFY_PIPELINE). We need to
talk with SPARC compiler folks about this. I wonder if release build "works" now, without this
verification.

-Aleksey