You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Macmini 2018 Kernel Panic

Log as below:


OS verison: 12.5


===============================================================


KP 2024 0816


panic(cpu 0 caller 0xffffff801b9193e6): zalloc_cached_fast: double free of 0xffffff90a3335660 to zone default.kalloc.32 @zalloc.c:847

Panicked task 0xffffff870bde3a20: 14 threads: pid 166: WindowServer

Backtrace (CPU 0), panicked thread: 0xffffff870c791aa0, Frame : Return Address

0xfffffff58b1e31b0 : 0xffffff801b07fd6d 

0xfffffff58b1e3200 : 0xffffff801b1e1016 

0xfffffff58b1e3240 : 0xffffff801b1d0383 

0xfffffff58b1e3290 : 0xffffff801b01fa70 

0xfffffff58b1e32b0 : 0xffffff801b08013d 

0xfffffff58b1e33d0 : 0xffffff801b07f8f6 

0xfffffff58b1e3430 : 0xffffff801b914d93 

0xfffffff58b1e3520 : 0xffffff801b9193e6 

0xfffffff58b1e3550 : 0xffffff801b0e9138 

0xfffffff58b1e35b0 : 0xffffff801b08f8d0 

0xfffffff58b1e3600 : 0xffffff7fb36b1fe9 

0xfffffff58b1e3630 : 0xffffff7fb36b1769 

0xfffffff58b1e3650 : 0xffffff7fb36b16f6 

0xfffffff58b1e3670 : 0xffffff7fb36b1ec6 

0xfffffff58b1e36b0 : 0xffffff7fb3670830 

0xfffffff58b1e36d0 : 0xffffff7fb3fed6ae 

0xfffffff58b1e3970 : 0xffffff7fb3671414 

0xfffffff58b1e39a0 : 0xffffff7fb3fee8f1 

0xfffffff58b1e3a30 : 0xffffff7fb3fec94b 

0xfffffff58b1e3a90 : 0xffffff7fb3fec741 

0xfffffff58b1e3ae0 : 0xffffff7fb3feb81d 

0xfffffff58b1e3b20 : 0xffffff7fb3671057 

0xfffffff58b1e3b60 : 0xffffff801b8835ec 

0xfffffff58b1e3cc0 : 0xffffff801b186d16 

0xfffffff58b1e3dd0 : 0xffffff801b05a98b 

0xfffffff58b1e3e60 : 0xffffff801b0711d9 

0xfffffff58b1e3ef0 : 0xffffff801b1b2fea 

0xfffffff58b1e3fa0 : 0xffffff801b020256 

   Kernel Extensions in backtrace:

     com.apple.iokit.IOAcceleratorFamily2(462.8)[33A57ED0-4258-3D90-B289-2A251CA9419CDE]@0xffffff7fb3fa6000->0xffffff7fb4010fff

      dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[B1C6E01A-DB3B-350F-A15E-696BF6EFC16D]@0xffffff801c7b1000->0xffffff801c7d2fff

      dependency: com.apple.iokit.IOGraphicsFamily(597)[A3D63B23-B497-3720-82BA-EB74C1CD8E22]@0xffffff7fb413f000->0xffffff7fb416dfff

      dependency: com.apple.iokit.IOPCIFamily(2.9)[1C239712-AA61-3895-87E3-236603DBD253]@0xffffff801dc35000->0xffffff801dc61fff

      dependency: com.apple.iokit.IOReportFamily(47)[66824C9A-7BC1-3F5D-A056-D789C8A86B8C]@0xffffff801dc73000->0xffffff801dc75fff

      dependency: com.apple.iokit.IOSurface(302.14)[A4EB629A-5D31-37F1-84B4-6671FFF84595]@0xffffff801dda6000->0xffffff801ddc2fff

     com.apple.driver.AppleIntelKBLGraphics(18.0.8)[E39587D9-B804-3665-A7B3-29221E85CED5]@0xffffff7fb3659000->0xffffff7fb3717fff

      dependency: com.apple.iokit.IOAcceleratorFamily2(462.8)[33A57ED0-4258-3D90-B289-2251C9419CDE]@0xffffff7fb3fa6000->0xffffff7fb4010fff

      dependency: com.apple.iokit.IOGraphicsFamily(597)[A3D63B23-B497-3720-82BA-EB74C1CD8E22]@0xffffff7fb413f000->0xffffff7fb416dfff

      dependency: com.apple.iokit.IOPCIFamily(2.9)[1C239712-AA61-3895-87E3-236603DBD253]@0xffffff801dc35000->0xffffff801dc61fff

      dependency: com.apple.iokit.IOSurface(302.14)[A4EB629A-5D31-37F1-84B4-6671FFF84595]@0xffffff801dda6000->0xffffff801ddc2fff


Process name corresponding to current thread (0xffffff870c791aa0): WindowServer

Boot args: -revsbvmm alcid=82 igfxonln=1 -igfxmpc -cdfon -igfxsku -lilubetaall chunklist-security-epoch=0 -chunklist-no-rev2-dev


Mac OS version:

21G72


Kernel version:

Darwin Kernel Version 21.6.0: Sat Jun 18 17:07:25 PDT 2022; root:xnu-8020.140.41~1/RELEASE_X86_64

Kernel UUID: E3E2BC4D-7B6F-39CC-88A90-73A6FBA513830

KernelCache slide: 0x000000001ae00000

KernelCache base: 0xffffff801b000000

Kernel slide:   0x000000001ae10000

Kernel text base: 0xffffff801b010000

__HIB text base: 0xffffff801af00000

System model name: Macmini8,1 (Mac-7BA5B2DFAE22DDD8C)

System shutdown begun: NO

Panic diags file available: YES (0x0)

Hibernation exit count: 0


System uptime in nanoseconds: 66196753599904

Last Sleep:      absolute      base_tsc     base_nano

 Uptime : 0x00003c34a1fbd0d7

 Sleep  : 0x000038f612b7625a 0x0000000084323390 0x000033ed7c8a9a79

 Wake  : 0x000038f616abddeb 0x0000000084282358 0x000038f613f47364

Compressor Info: 2% of compressed pages limit (OK) and 2% of segments limit (OK) with 1 swapfiles and OK swap space

Zone info:

 Zone map: 0xffffff80a23bd000 - 0xffffffa0a23bd000

 . PGZ  : 0xffffff80a23bd000 - 0xffffff80a63be000

 . VM  : 0xffffff80a63be000 - 0xffffff85726f1000

 . RO  : 0xffffff85726f1000 - 0xffffff870bd57000

 . GEN0 : 0xffffff870bd57000 - 0xffffff8bd808a000

 . GEN1 : 0xffffff8bd808a000 - 0xffffff90a43bd000

 . GEN2 : 0xffffff90a43bd000 - 0xffffff95706f0000

 . GEN3 : 0xffffff95706f0000 - 0xffffff9a3ca23000

 . DATA : 0xffffff9a3ca23000 - 0xffffffa0a23bd000

 Metadata: 0xffffff80723ad000 - 0xffffff80923ad000

 Bitmaps : 0xffffff80923ad000 - 0xffffff809e3ad000




Mac mini, macOS 14.5

Posted on Aug 15, 2024 10:00 PM

Reply
2 replies

Aug 15, 2024 10:43 PM in response to 旺生

Sorry, can't tell much from Apple\s Logs anymore.


In Disk Utility>View, select Show all Devices, highlight the top left entry.


Run Disk First Aid on all items in the left panel, from top down.


Are you running any VPN, Anti-Virus, or Cleaning apps?


We need to see what all is running, a report from this will not display any personal info...

Using EtreCheck - Apple Community


EtreCheck is a FREE simple little diagnostic tool to display the important details of your system configuration and allow you to copy that information to the Clipboard. It is meant to be used with Apple Support Communities to help people help you with your Mac. It will not display any personal info. Give it Full Disk Access.

https://www.etrecheck.com/


Give etrecheck Full Disk Access before running.


Thanks for Old Toad’s etrecheck instructions…

Slow iMac 2017 - Apple Community


Aug 19, 2024 2:39 PM in response to 旺生

panic(cpu 0 caller 0xffffff801b9193e6): zalloc_cached_fast: double free of 0xffffff90a3335660 to zone default.kalloc.32 @zalloc.c:847
Panicked task 0xffffff870bde3a20: 14 threads: pid 166: WindowServer


"zalloc" & "kalloc" would seem to be a memory allocation events.


A search for "zalloc_cached_fast: double free" gave me this forum post where the relevant part explained the "double free" aspect:


From: https://stackoverflow.com/a/979184

When an object is "double-freed", the most common cause is that you're (unnecessarily) releasing an autoreleased object, and it is later autoreleased when the containing autorelease pool is emptied.


Seems like it may be a bug.


Macmini 2018 Kernel Panic

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