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avro707

macrumors 68020
Original poster
Dec 13, 2010
2,311
1,700
Getting this unusual kernel panic on startup of my Mac, it's very random and doesn't always occur. Yesterday no troubles, multiple restarts and shutdown/startup to try and provoke the error. When starting Windows 11 Pro for Workstations I never see any issues.

See attached txt file. Apart from that, machine runs fine all day with no other errors. It's the machine with 48GB ram. I ran hardware test and got no reported hardware errors.

Any further checks? I'm planning to put the GPU in the other Mac when it arrives to check it on that.

panic(cpu 0 caller 0xffffff7f9d77ef96): "virtual bool IOAccelDisplayMachine::display_mode_did_change(uint32_t): AMDRadeonAccelerator driver returns false" @IOAccelDisplayMachine.cpp:345
Panicked task 0xffffff99d6b274c0: 7 threads: pid 167: WindowServer
Backtrace (CPU 0), panicked thread: 0xffffff9040093b30, Frame : Return Address
0xfffffffa0047f410 : 0xffffff800855f581
0xfffffffa0047f460 : 0xffffff80086cbeac
0xfffffffa0047f4a0 : 0xffffff80086bb52b
0xfffffffa0047f560 : 0xffffff80084f5971
0xfffffffa0047f580 : 0xffffff800855f877
0xfffffffa0047f680 : 0xffffff800855ef12
0xfffffffa0047f6f0 : 0xffffff8008dd44d8
0xfffffffa0047f7e0 : 0xffffff7f9d77ef96
0xfffffffa0047f7f0 : 0xffffff7f9d735984
0xfffffffa0047f830 : 0xffffff7f9d77108b
0xfffffffa0047f890 : 0xffffff7f9d8debf2
0xfffffffa0047f9e0 : 0xffffff7f9d8c9153
0xfffffffa0047fa70 : 0xffffff7f9d8d468b
0xfffffffa0047fa90 : 0xffffff7f9d8d93ec
0xfffffffa0047fb10 : 0xffffff7f94edfabe
0xfffffffa0047fb30 : 0xffffff7f9d8cf089
0xfffffffa0047fbc0 : 0xffffff8008cc31cd
0xfffffffa0047fc20 : 0xffffff8008d39005
0xfffffffa0047fca0 : 0xffffff8008672953
0xfffffffa0047fd00 : 0xffffff800853c780
0xfffffffa0047fda0 : 0xffffff800854fc25
0xfffffffa0047fdf0 : 0xffffff8008550314
0xfffffffa0047fee0 : 0xffffff80086a00ca
0xfffffffa0047ffa0 : 0xffffff80084f5dd6
Kernel Extensions in backtrace:
com.apple.iokit.IOGraphicsFamily(598.0)[BEA504A3-650F-3015-99A5-D8E1801AE95D]@0xffffff7f9d8be000->0xffffff7f9d8ecfff
dependency: com.apple.iokit.IOPCIFamily(2.9)[D92A8042-17C6-3E92-9C55-BCAFFE716A73]@0xffffff800a9ce000->0xffffff800aa00fff
com.apple.kext.AMDRadeonX6000Framebuffer(6.0.1)[8031CEFC-EA41-36B8-B0D2-1DFAD161D5FD]@0xffffff7f94ecb000->0xffffff7f95154fff
dependency: com.apple.AppleGraphicsDeviceControl(8.1.10)[F15CF5E9-FB55-3C5C-9DA8-D3013B489BE4]@0xffffff7f9cd04000->0xffffff7f9cd07fff
dependency: com.apple.iokit.IOACPIFamily(1.4)[5CCDA23F-974B-36FE-991B-F492F97C7C90]@0xffffff800a554000->0xffffff800a555fff
dependency: com.apple.iokit.IOGraphicsFamily(598)[BEA504A3-650F-3015-99A5-D8E1801AE95D]@0xffffff7f9d8be000->0xffffff7f9d8ecfff
dependency: com.apple.iokit.IOPCIFamily(2.9)[D92A8042-17C6-3E92-9C55-BCAFFE716A73]@0xffffff800a9ce000->0xffffff800aa00fff
com.apple.iokit.IOAcceleratorFamily2(485.0)[B9FC2054-B954-3297-A8AF-D7CC67F331E6]@0xffffff7f9d727000->0xffffff7f9d790fff
dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[B975CE45-8985-335D-9721-39854A039EE8]@0xffffff8009c44000->0xffffff8009c7cfff
dependency: com.apple.iokit.IOGraphicsFamily(598)[BEA504A3-650F-3015-99A5-D8E1801AE95D]@0xffffff7f9d8be000->0xffffff7f9d8ecfff
dependency: com.apple.iokit.IOPCIFamily(2.9)[D92A8042-17C6-3E92-9C55-BCAFFE716A73]@0xffffff800a9ce000->0xffffff800aa00fff
dependency: com.apple.iokit.IOReportFamily(47)[DCBEB7F4-9899-3FDE-8285-620F8C87B32A]@0xffffff800aa11000->0xffffff800aa13fff
dependency: com.apple.iokit.IOSurface(368.0.2)[3362A477-72BF-36FB-A1A8-5242EB1CF4D9]@0xffffff800ab2f000->0xffffff800ab56fff

Process name corresponding to current thread (0xffffff9040093b30): WindowServer

Mac OS version:
24A5279h
 

Attachments

  • 2024-07-05-060112.kernel.core.txt
    9.5 KB · Views: 33
Getting this unusual kernel panic on startup of my Mac, it's very random and doesn't always occur.
Which model Mac Pro? “On startup” means during the boot sequence or do you mean a panic dialog is displayed on desktop after boot sequence completes?
 
Which model Mac Pro? “On startup” means during the boot sequence or do you mean a panic dialog is displayed on desktop after boot sequence completes?
7,1 2019 MP.

When error happens the MP shuts down on startup. Then on restarting it will show that error log when I get into macOS.

This morning no problem, started without errors.
 
Getting this unusual kernel panic on startup of my Mac, it's very random and doesn't always occur. Yesterday no troubles, multiple restarts and shutdown/startup to try and provoke the error. When starting Windows 11 Pro for Workstations I never see any issues.

See attached txt file. Apart from that, machine runs fine all day with no other errors. It's the machine with 48GB ram. I ran hardware test and got no reported hardware errors.

Any further checks? I'm planning to put the GPU in the other Mac when it arrives to check it on that.
I would suggest running EtreCheckPro and see what the logs show after the next kernel panic.
 
I would suggest running EtreCheckPro and see what the logs show after the next kernel panic.

I’ll have to buy that since the affected computer has the Sequoia beta. Not a problem, will do so.

I’ve done more testing, swapping my original W6800X 32GB into the problem machine.

Also 96GB ram into that. Result? Seems to run fine.

Swapped the 48GB RAM and 2x Duo MPX modules into the macOS 14.5 machine. 4 startups done and that seems okay so far.

I’ll keep it that way and see how things go over a few days which should be enough to uncover and further problems.

If none I might try doing a clean install of macOS on the problem computer.
 
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