macOS 26 Tahoe: System runs out of application memory (M4 Pro, 48 GB RAM, 2 TB SSD)

Dear community,


I recently bought myself a MacBook Pro with a M4 Pro chip, 48 GB of RAM and a 2 TB SSD hard drive.

It shipped with macOS 15.


After updating to macOS 26 I've experienced the following issues:


1) "Black screen of death" after system sleep

2) After wake up from sleep, I get the message "System has run out of application memory" and the system is completely unresponsive. (Can't check Activity Monitor for details because of that)


I have never experienced these issues with other Macs, and I am on my third Apple silicon machine now. I used the migration assistant to migrate the machine from my former M2 Pro machine.


Could this be a OS issue or is my new hardware faulty?


I attached a screenshot of the "application memory" message, but is in German.


Thank you, best regards


Michael





[Edited by Moderator]

MacBook Pro 14″, macOS 26.0

Posted on Sep 30, 2025 1:02 AM

Reply
137 replies

Dec 28, 2025 1:27 PM in response to NoCreativeUserName

My experience is different. I bought a new MacMini last week running on Tahoe. I needed to reinstall the OS with a fair amount of difficulty, but some of the problems seemed to go away after that reinstall.

The big problem is that there are no USB-A ports; many of the equipment I use need USB-A to Type B cables. I had an old USB-C to HDMI-USB A adapter. It worked for 2 days, but, as the reviews have shown elsewhere, these go out prematurely, and it did (this cost $69). I understand Apple wants to innovate and innovated products cost a bundle, but why penalize your customers by changing everything so that they have to go and get new peripherals or use precision guesswork to find out how to make things work. That is not nice.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

macOS 26 Tahoe: System runs out of application memory (M4 Pro, 48 GB RAM, 2 TB SSD)

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.