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macOS Sonoma 14.4 might break Java on your machine

appleinsider.com

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Re: macOS Sonoma 14.4 might break Java on your machine

#31

Post by t-sauer »

self_awareness wrote: post #3

I find this hard to accept. Doesn't Apple do pre-release testing of their updates? How the release process looks like? News like these are the major reason why I apply updates only after long periods of waiting if anything blows up for others. Why companies use their userbase as testers?

> News like these are the major reason why I apply updates only after long periods of waiting if anything blows up for others.

But then you are accepting that you are running an exploitable OS since you are lacking the latest security fixes. Not sure if that‘s an acceptable tradeoff.

Re: macOS Sonoma 14.4 might break Java on your machine

#32

Post by angulardragon03 »

qwertimus wrote: post #12
self_awareness wrote: post #3

I find this hard to accept. Doesn't Apple do pre-release testing of their updates? How the release process looks like? News like these are the major reason why I apply updates only after long periods of waiting if anything blows up for others. Why companies use their userbase as testers?

Strangely, the issue wasn't present in pre-release builds. I agree though, Apple's internal testing before final release should have picked this up.

There is some sample C code to test with, and the issue is actually in the pre-releases. It’s just not in the first couple.

Re: macOS Sonoma 14.4 might break Java on your machine

#33

Post by [deleted] »

baq wrote: post #28

Been saying this for as long as I’ve been using macOS: it is not a developer friendly OS and am close to the conclusion that this reputation is a psy-op. Yeah it’s pretty, it mostly works when the box is first turned on and the hardware is unmatched but macOS itself is actually subpar. QA seems second tier, things you’d except from other OSes like, I don’t know, using a third party second display are just bad experie…

[deleted]

Re: macOS Sonoma 14.4 might break Java on your machine

#34

Post by bzzzt »

baq wrote: post #28

Been saying this for as long as I’ve been using macOS: it is not a developer friendly OS and am close to the conclusion that this reputation is a psy-op. Yeah it’s pretty, it mostly works when the box is first turned on and the hardware is unmatched but macOS itself is actually subpar. QA seems second tier, things you’d except from other OSes like, I don’t know, using a third party second display are just bad experie…

Strange. I've got the complete opposite experience. Most displays work fine. It helps if you stick with models that advertise at least a bit of macOS support (like some Dells or Samsungs). Docker sucks, but there's Orbstack. I don't care for posix, but most of my *nix tools are available in Homebrew. Network is steady and more bulletproof than wireless on Linux. Is your experience based on a recent mac?

Re: macOS Sonoma 14.4 might break Java on your machine

#35

Post by weikju »

baq wrote: post #28

Been saying this for as long as I’ve been using macOS: it is not a developer friendly OS and am close to the conclusion that this reputation is a psy-op. Yeah it’s pretty, it mostly works when the box is first turned on and the hardware is unmatched but macOS itself is actually subpar. QA seems second tier, things you’d except from other OSes like, I don’t know, using a third party second display are just bad experie…

Alas the corporate bloat wars ruins many a persons experience of macOS

Re: macOS Sonoma 14.4 might break Java on your machine

#36

Post by fweimer »

arghwhat wrote: post #26
karolist wrote: post #15

> As a normal part of the just-in-time compile and execute cycle, processes running on macOS may access memory in protected memory regions. Prior to the macOS 14.4 update, in certain circumstances, the macOS kernel would respond to these protected memory accesses by sending a signal, SIGBUS or SIGSEGV, to the process. > With macOS 14.4, when a thread is operating in the write mode, if a memory access to a protected m…

Despite what the other commenters are saying, it is bizarre. 1. There is very little you can safely do in a signal handler. For a threaded application, that pretty much boils entirely down to setting a bit and leaving it at that. If they did anything more, the behavior is undefined. 2. The memory state that a program receiving a SIGSEGV in is often undefined/garbage, and attempting to execute further at this point is…

The signal comes from a safe fetch, which is just a read that allows ignoring the fault as if it never happened. Such a signal is deliver synchronously, so the usual restrictions for asynchronous signal handlers do not apply.

The code in question takes into account that the value read might be garbage. See the big comment here: https://github.com/openjdk/jdk/commit/29397d29baac3b29083b1b...

On current CPUs and operating systems, this is not an optimization, so the code was removed earlier this year: https://bugs.openjdk.org/browse/JDK-8320317

Re: macOS Sonoma 14.4 might break Java on your machine

#37

Post by tigeroil »

baq wrote: post #28

Been saying this for as long as I’ve been using macOS: it is not a developer friendly OS and am close to the conclusion that this reputation is a psy-op. Yeah it’s pretty, it mostly works when the box is first turned on and the hardware is unmatched but macOS itself is actually subpar. QA seems second tier, things you’d except from other OSes like, I don’t know, using a third party second display are just bad experie…

Indeed - I recently switched to Linux and I'm much happier. I'm shocked how much better the experience is lately.

Re: macOS Sonoma 14.4 might break Java on your machine

#38

Post by carstenhag »

baq wrote: post #28

Been saying this for as long as I’ve been using macOS: it is not a developer friendly OS and am close to the conclusion that this reputation is a psy-op. Yeah it’s pretty, it mostly works when the box is first turned on and the hardware is unmatched but macOS itself is actually subpar. QA seems second tier, things you’d except from other OSes like, I don’t know, using a third party second display are just bad experie…

Effectively, software/hardware is hard and you will have issues in some way with all platforms.

Re: macOS Sonoma 14.4 might break Java on your machine

#39

Post by aardvark179 »

This is obviously a problem, but it does appear to be an intermittent one, and not easy to provoke for me. I upgraded last week, and have seen precisely one unexpected exit of a JVM process, and I think that memory analysis toolkit running out of memory, and I have been running a lot of stuff.

Re: macOS Sonoma 14.4 might break Java on your machine

#40

Post by grodriguez100 »

daghamm wrote: post #11
jbverschoor wrote: post #4

Earlier quoted context omitted.

[flagged]

Did you read Oracles post? "The issue was not present in the early access releases for macOS 14.4, so it was discovered only after Apple released the update." JVM generates code on the fly, which normal applications are not allowed to do. So java by definition receives special treatment from the OS, which OSX seem to have broken now.

There is no “special treatment for Java”. This is a well known technique that has been used for ages in the implementation of JITs. The behavior it relies on is specified by POSIX.
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