On Fri, 6 Sep 2024 07:55:34 GMT, Alan Bateman <[email protected]> wrote:
>> Matthias Baesken has updated the pull request incrementally with one
>> additional commit since the last revision:
>>
>> check for ENOMEM
>
> src/java.base/macosx/native/libjava/ProcessHandleImpl_macosx.c line 128:
>
>> 126: if (errsysctl < 0) {
>> 127: JNU_ThrowByNameWithMessageAndLastError(env,
>> 128: "java/lang/RuntimeException", "sysctl failed to get info
>> about all processes");
>
> sysctl(3) documents the return as 0 or -1. So maybe better if the while
> condition checks errsysctl == -1 and the if condition checks errsysctl != 0.
> Otherwise I think this looks good and will be interesting to see if you have
> other sightings due to other errors.
>
> I guess we should change the JBS/PR title to make it clearer that this issue
> is now about handling ENOMEM when the number of processes increases. We'll
> also need to create another issue for the RuntimeException throwing as that
> will need updates to the ProcessHandle to specify possible error/exceptions.
Hi Alan, at a lot (but not all) of places ( ProcessHandleImpl_macosx.c , also
os_bsd.cpp) we test the sysctl result for < 0; maybe there was a good reason
for this ?
Regarding changing the JBS title- yes sure the old title is not really good any
more .
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PR Review Comment: https://git.openjdk.org/jdk/pull/20839#discussion_r1746693340
