Hotspot segfaulting on Linux SPARC

[Thomas Stüfe]

 VM_Version::determine_features() needs a code blob, and hence
ResourceMark, on sparc and ppc and s390 I think.

But I think the reason that only sparc fails is that
VM_Version::determine_features() is called too early on Sparc (as part of
os::init_before_ergo()). The other platforms call that function later in
initialization (VM_Version_init() -> init_globals()). Could that be the
error, and if yes, could  VM_Version::determine_features()  be delayed?

(Apart from that - the strdup/os::free mismatch Zhengyu found is quite real
and should be fixed).

..Thomas


On Mon, Apr 9, 2018 at 2:57 PM, John Paul Adrian Glaubitz <
glaubitz at physik.fu-berlin.de> wrote:

> On 04/09/2018 02:37 PM, Zhengyu Gu wrote:
>
>> The use of the os* functions can lead us into code that uses ResourceMark
>>> and requires an attached thread.
>>>
>>
>> Ah, I would argue that we should not get to this crash to begin with :-)
>>
>
> But I'm still not getting further :(.
>
> Can anyone tell me what the state on Solaris/SPARC is? The assertion
> failure
> should occur on Solaris as well I guess as the crash doesn't seem
> Linux-specific.
>
>
> Adrian
>
> --
>  .''`.  John Paul Adrian Glaubitz
> : :' :  Debian Developer - glaubitz at debian.org
> `. `'   Freie Universitaet Berlin - glaubitz at physik.fu-berlin.de
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>