dtrace freezes macOS Sequoia 15.3.1 on M2

I tried this in a macOS 15.3.2 VM and it didn’t see the crash:

% sw_vers
ProductName:        macOS
ProductVersion:     15.3.2
BuildVersion:       24D81
% csrutil status
System Integrity Protection status: disabled.
% sudo filebyproc.d
dtrace: script '/usr/bin/filebyproc.d' matched 8 probes
CPU     ID                    FUNCTION:NAME
  2    964              open_nocancel:entry adprivacyd /usr/lib/log/
…

I don’t have time today to try it on real hardware.

I’m not aware of any systematic problem with DTrace on recent systems [1]. My advice would be for you to try it on a ‘clean’ system, just to make sure there’s nothing specific about your Mac that’s triggering the problems. And if it continues to fail, file a bug about that.

If you do file a bug, please post your bug number, just for the record.

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[1] Other than the fact that you have to disable SIP )-:

@DTS Engineer Thanks a lot for your information, could you help try on a physical M2 pro MacBook Pro machine? Here on my machine, the problem is reliably reproducible.

I have filed a bug via Feedback Assistant: FB17159064 (dtrace freezes macOS Sequoia 15.3.1 on M2 Pro (MacBook Pro))

and have sysdiagnose and system info attached. If you need any more information, please let me know~

PS: I also tried on a M3 machine, dtrace works correctly, so I'm guessing this has to do something with M2 specifically.

Same problem (or similar) on an M2 Pro here (Sequoia 15.4). Interestingly, the system doesn't freeze immediately; after I start dtrace I can switch windows, interact some with the browser, type things. But gradually each piece of the system freezes up and won't respond to anything. It feels like it's anytime something tries to fork a new process, it freezes. The clearest example is that typing a command in iTerm and hitting enter causes iTerm to freeze. Trying to launch something with Spotlight or the Dock or Quicksilver causes those components to freeze. Eventually everything is wedged enough that I have to hard-reboot. Does that match what you see, @zjz ?