Music App Crash

[Jason Van Diemen]

Hi, this is my first post so here goes.
I have 2 Mac Pro 5,1 both have recently been upgraded to Sequoia 15.4 and have Opencore legacy patcher 2.4.0 running in the background holding, what i can only assume, everything together.

I have upgraded directly from BigSur which was very stable and I had no problems. However that said since the upgrade I have found that the Music app and only that keep crashing and closing down. Below is the note from the report to Apple (I have the whole ting if required):

Translated Report (Full Report Below)
-------------------------------------

Process: Music [575]
Path: /System/Applications/Music.app/Contents/MacOS/Music
Identifier: com.apple.Music
Version: 1.5.4 (1.5.4)
Build Info: MusicDesktop-1005004070000~1
Code Type: X86-64 (Native)
Parent Process: launchd [1]
User ID: 501

Date/Time: 2025-05-18 13:22:35.1471 +1000
OS Version: macOS 15.4 (24E248)
Report Version: 12
Anonymous UUID: 485BCA1A---------------------------------461
Sleep/Wake UUID: D79F7274---------------------------------1A4

Time Awake Since Boot: 2758 seconds

Time Since Wake: 139 seconds
System Integrity Protection: enabled
Crashed Thread: 0 Music main Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes: 0x0000000000000001, 0x0000000000000000

Termination Reason: Namespace SIGNAL, Code 4 Illegal instruction: 4
Terminating Process: exc handler [575]
And so I come to all you geniuses as to what to do next. I can only assume its a code thing and the music app is missing something.

Machine details as follows
3.33 GHz 6-Core Intel Xeon
ATI Radeon HD 5770 1 GB
32 GB 1333 MHz DDR3
15.4 (24E248)

Many thanks
I look forward to hearing from anyone

 

[barracuda156]

I have 2 Mac Pro 5,1 both have recently been upgraded to Sequoia 15.4 and have Opencore legacy patcher 2.4.0 running in the background holding, what i can only assume, everything together.

I have upgraded directly from BigSur which was very stable and I had no problems. However that said since the upgrade I have found that the Music app and only that keep crashing and closing down.

Time Since Wake: 139 seconds
System Integrity Protection: enabled
Crashed Thread: 0 Music main Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes: 0x0000000000000001, 0x0000000000000000

Termination Reason: Namespace SIGNAL, Code 4 Illegal instruction: 4

Nothing in the native software should produce illegal instructions. It is likely a OCLP issue, or compatibility of specific versions with given hardware.
You may report the issue to OCLP upstream and see if they are interested to deal with it, or use macOS version which this hardware is supposed to have. Hacking the OS has an expected side effect of reduced stability.

 

[reader50]

Exception Type: EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes: 0x0000000000000001, 0x0000000000000000

Termination Reason: Namespace SIGNAL, Code 4 Illegal instruction: 4

This is most likely the system encountering an AVX opcode. Our 4,1 or 5,1 CPUs do not have AVX opcodes, and they started being used in OS and apps beginning in Ventura.

OCLP is good at patching later macOS versions, but is not so good at apps and drivers. Once an app version specifies Ventura (or later) as their minimum OS, it probably means they're compiled with AVX instructions allowed.

The only sure way to avoid this issue is to downgrade to Monterey and stay there. However, this is hit-or-miss: I have a 4,1 upgraded to 5,1 running Sequoia, which seems completely unaffected. None of the apps I use have triggered crashes. Maybe I just use basic apps, or maybe my config somehow avoids the issue. This is yet to be positively figured out.

In the meantime, you might try a different graphics card. Your 5770 is a non-Metal card - it's actually unsupported from Mojave on. So OCLP is patching in old drivers, and re-activating the old non-metal rendering paths. Plenty of room there for an opcode error to creep in.

If you can lay hands on a later GPU fairly cheaply, see if your crashes go away. An RX 580 is probably the most compatible card. Metal compatibility starts with the HD 7000 series, though not all cards since work in a Mac. See the graphics card sticky near the top of this forum for suggestions. You can also check the OpenCore graphics card suggestions. note: avoid RX 5000 and later cards - the drivers don't work on our older Mac Pros after Monterey.

At this point, you're probably better off avoiding nVidia cards.