Big Sur panic when connect/disconnect usb-c dock

App & System Services Core OS macOS

Created Apr ’21

Replies 182

Boosts 5

Views 77k

Participants 154

Big Sur panic when connect/disconnect usb-c dock (tested with many usb–c docks including baseus, ugreen, non apple – not reproduced with apple multiport adapter).

Problem persist! I have many panics every day!

panic(cpu 7 caller 0xffffff8017898976): [kext.kalloc.2048]: element modified after free (off:1672, val:0xffffffff00000000, sz:2048, ptr:0xffffff93d7fa5800, prot:zero)
1672: 0xffffffff00000000
Backtrace (CPU 7), Frame : Return Address
0xffffffa1daab2640 : 0xffffff80170870ad
0xffffffa1daab2690 : 0xffffff80171cddd3
0xffffffa1daab26d0 : 0xffffff80171be3ca
0xffffffa1daab2720 : 0xffffff801702ba2f
0xffffffa1daab2740 : 0xffffff80170868cd
0xffffffa1daab2860 : 0xffffff8017086bc3
0xffffffa1daab28d0 : 0xffffff801789694a
0xffffffa1daab2940 : 0xffffff8017898976
0xffffffa1daab2dc0 : 0xffffff80170e5a26
0xffffffa1daab2e30 : 0xffffff801709668c
0xffffffa1daab2e80 : 0xffffff80177a8822
0xffffffa1daab2ea0 : 0xffffff801a1596dc
0xffffffa1daab2ec0 : 0xffffff801a1676bc
0xffffffa1daab2f20 : 0xffffff801a159e2e
0xffffffa1daab2fc0 : 0xffffff801a15bfa7
0xffffffa1daab3270 : 0xffffff801a15fe3d
0xffffffa1daab3540 : 0xffffff801a15cda2
0xffffffa1daab37f0 : 0xffffff801a15a333
0xffffffa1daab3950 : 0xffffff801a1547b1
0xffffffa1daab3b50 : 0xffffff801787fb4a
0xffffffa1daab3b90 : 0xffffff801731a98f
0xffffffa1daab3bd0 : 0xffffff80173407c8
0xffffffa1daab3c90 : 0xffffff80173264a8
0xffffffa1daab3ee0 : 0xffffff8017327059
0xffffffa1daab3f40 : 0xffffff8017739fce
0xffffffa1daab3fa0 : 0xffffff801702c1f6
Kernel Extensions in backtrace:
com.apple.security.sandbox(300.0)[F9746111-2761-31A8-A9C8-3DCA8976E468]@0xffffff801a148000->0xffffff801a18dfff
dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[7C10DA84-DFD9-3C2D-B503-E648E488EC9D]@0xffffff80186c0000->0xffffff80186d5fff
dependency: com.apple.iokit.IOStorageFamily(2.1)[A78CAAA2-43A6-38EF-AEDA-3B957D358855]@0xffffff8019c6d000->0xffffff8019c7efff
dependency: com.apple.kext.AppleMatch(1.0.0d1)[DB7AEFA5-928C-3B7F-87CC-EDC47D98B267]@0xffffff80186bc000->0xffffff80186befff

Process name corresponding to current thread: update_dyld_sim_shared_cache
Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev

Mac OS version:
20F5046g

Kernel version:
Darwin Kernel Version 20.5.0: Thu Apr 15 05:31:19 PDT 2021; root:xnu-7195.120.38.111.1~4/RELEASE_X86_64

My reports in feedback assistant: FB9085399, FB9084201, FB9080122, FB9078447, FB9077541, FB9073646, FB9069424, FB9036423, FB9006281, FB8996761, FB8985931, FB8984349, FB8982979 ...

Boost

Tata12 OP

Nov ’22

Had this issue for the first time today.

Mac mini (M1, 2020)
Monterey 12.6
Display 1 - 21.5in, 1920x1080 via built in HDMI;
Display 2 - 27in, 1920x1080 via HDMI through USB-C dongle (my only option for a second display)

Crash Report

geoffb77 OP

Mar ’23

Same issue for me plugging a Dell monitor via Display port into Macbook 16" 2019:

2.4 GHz 8-Core Intel Core i9 Intel UHD Graphics 630 1536 MB Ventura 13.2.1 (22D68)

Running latest Ventura so OSX doesn't seem to be solving the issue.

jaxjexjox OP

Apr ’23

I can confirm this is also an issue now on the 27" 4k Dell S2722QC The docks built into this monitor are fully standardised docks, like the WD19, WD15 etc.

Totally compatible with HP, Dell, devices, even Android USB-C phones with display capabilities, however Apple, somehow have either a physical flaw in this series of MacBook or a major software driver error for the display / thunderbolt interface, yet it remains unpatchd.

This stuff is standardised. This is absoloutely an Apple fault, not a Dell / Thunderbolt fault. Heck my iPad Air 4 works on these docks.

roy5416 OP

May ’23

The problem lasted several years, no one solved it. So many cables and monitors fails, it must be an Apple issue.

max-suponya OP

May ’23

Macbook Pro 16' 2019 + Dell U2719DC, worked great together for 3 years. Now suddenly the laptop freezes and the screen flickers when the monitor is plugged in. Took me awhile to figure what's causing it as the monitor is always plugged in. Other devices work just fine with the monitor. Apple, please fix.

fireflyk OP

Oct ’23

Same issue. Crashes 3 times every day when connecting to Caldigit dock.

2019 Macbook Pro 16 inches CPU intel i9 GPU AMD Radeon 32GB OS Sonoma 14.0

jjboy017 OP

Jan ’24

Hello, Has anyone found a fix on this matter ? I using the latest 14" MBP M3 Max and it's rebooting on it's own when I unplug thunderbolt drives or any device connect to a OWC Thunderbolt Pro hub.. Thanks