This seems to only happen when I'm connected directly to a monitor. Does not happen when connected with my docks, only when connected directly via USB-C to display port.
It is more likely to happen when waking from sleep after walking away for a few minutes. Or when disconnecting and reconnecting the monitor because it does not detect it.
Now it happened for the first time in the middle of writing an email.
This is the report:
panic(cpu 3 caller 0xffffff801729fc36): [kext.kalloc.2048]: element modified after free (off:1672, val:0xfffffffe00000000, sz:2048, ptr:0xffffff938f917000, prot:zero)
1672: 0xfffffffe00000000
Backtrace (CPU 3), Frame : Return Address
0xffffffc140f3bfa0 : 0xffffff8016a33216
Kernel Extensions in backtrace:
com.apple.iokit.IOAcceleratorFamily2(442.9)[8F6B0D56-AFD7-38F7-8EDA-B43ACA468394]@0xffffff7fb17b4000->0xffffff7fb181efff
dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[152D7047-0D43-3CA8-B1EA-251D3F80AC28]@0xffffff80180c0000->0xffffff80180d5fff
dependency: com.apple.iokit.IOGraphicsFamily(585.1)[B5241FDE-C525-39D6-9813-2BE73DD7CEE3]@0xffffff7fb1935000->0xffffff7fb1963fff
dependency: com.apple.iokit.IOPCIFamily(2.9)[F7AA4BAF-35CF-3784-A50C-5FD9CDCBE488]@0xffffff801956c000->0xffffff8019594fff
dependency: com.apple.iokit.IOReportFamily(47)[AE367C5D-FEFC-390D-ABDF-86E037890F00]@0xffffff80195a3000->0xffffff80195a5fff
dependency: com.apple.iokit.IOSurface(290.8.1)[DCE8209F-A72D-3EBA-BE93-C0AF896AA9B5]@0xffffff8019696000->0xffffff80196b2fff
com.apple.driver.AppleIntelKBLGraphics(16.0.5)[8B11EE30-3D67-3FB9-9F2E-46A1B159E059]@0xffffff7fb0ea9000->0xffffff7fb0f60fff
dependency: com.apple.iokit.IOAcceleratorFamily2(442.9)[8F6B0D56-AFD7-38F7-8EDA-B43ACA468394]@0xffffff7fb17b4000->0xffffff7fb181efff
dependency: com.apple.iokit.IOGraphicsFamily(585.1)[B5241FDE-C525-39D6-9813-2BE73DD7CEE3]@0xffffff7fb1935000->0xffffff7fb1963fff
dependency: com.apple.iokit.IOPCIFamily(2.9)[F7AA4BAF-35CF-3784-A50C-5FD9CDCBE488]@0xffffff801956c000->0xffffff8019594fff
dependency: com.apple.iokit.IOSurface(290.8.1)[DCE8209F-A72D-3EBA-BE93-C0AF896AA9B5]@0xffffff8019696000->0xffffff80196b2fff
Process name corresponding to current thread: TouchBarServer
Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev
Mac OS version:
20G95
Kernel version:
Darwin Kernel Version 20.6.0: Wed Jun 23 00:26:31 PDT 2021; root:xnu-7195.141.2~5/RELEASE_X86_64
Kernel UUID: FECBF22B-FBBE-36DE-9664-F12A7DD41D3D
KernelCache slide: 0x0000000016800000
KernelCache base: 0xffffff8016a00000
Kernel slide: 0x0000000016810000
Kernel text base: 0xffffff8016a10000
__HIB text base: 0xffffff8016900000
System model name: MacBookPro16,1 (Mac-E1008331FDC96864)
System shutdown begun: NO
Hibernation exit count: 4
