JDK 17: First Release Candidate
david.holmes at oracle.com
Sun Aug 15 12:17:13 UTC 2021
On 14/08/2021 7:23 pm, Florian Weimer wrote:
> * David Holmes:
>> Hi Matthias,
>> On 14/08/2021 2:00 am, Matthias Klose wrote:
>>> On 8/6/21 7:09 PM, mark.reinhold at oracle.com wrote:
>>>> There are no unresolved P1 bugs in build 35, so that is our
>>>> first JDK 17 Release Candidate.
>>>> Binaries available here, as usual: https://jdk.java.net/17
>>> this fails to build with glibc 2.34, i.e. on recent Fedora and
>>> development versions:
>>> function 'set_signal_handler':
>>> error: storage size of 'altstack' isn't constant
>>> 72 | static char altstack[SIGSTKSZ];
>>> | ^~~~~~~~
>>> gmake: *** [test/JtregNativeHotspot.gmk:1525:
>>> Error 1
>> That seems like a glibc bug to me as SIGSTKSZ is supposed to be a constant.
> It is still a constant in glibc's POSIX mode, but OpenJDK does not use
> POSIX mode (with good reason). 8192 bytes is really tight on AVX-512
> capability CPUs, so the code could still be buggy if it compiled.
Please note this only relates to building a test file not the product,
so we should be able to change the way the test is built with no issue.
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