Mac Mini crashing on sleep

eastender

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Apr 25, 2020, 9:46:48 AM4/25/20

to

I've had this problem before but it went away. Now it's back and the
only change I can put it down to is finally putting on the latest Apple
security update. It's a Mojave system. My kids have been using it but I
don't think they've messed anything up.

On putting the system to sleep at night it crashes during the night. Is
doing so every night.

Details from the report below - any clues? Thanks

----------

Model: Macmini8,1, BootROM 1037.100.362.0.0 (iBridge:
17.16.14281.0.0,0), 6 processors, Intel Core i7, 3.2 GHz, 32 GB, SMC
Graphics: kHW_IntelUHDGraphics630Item, Intel UHD Graphics 630,
spdisplays_builtin
Memory Module: BANK 0/ChannelA-DIMM0, 16 GB, DDR4, 2667 MHz, 859B,
CT16G4SFD8266.M16FE
Memory Module: BANK 2/ChannelB-DIMM0, 16 GB, DDR4, 2667 MHz, 859B,
CT16G4SFD8266.M16FE
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x7BF),
wl0: Oct 23 2019 08:32:36 version 9.137.11.0.32.6.36 FWID 01-671ec60c
Bluetooth: Version 6.0.14d6, 3 services, 27 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Network Service: Wi-Fi, AirPort, en1
USB Device: USB 3.1 Bus
USB Device: Hub
USB Device: 2.4G Wireless Mouse
USB Device: Dell QuietKey Keyboard
USB Device: EIZO USB HID Monitor
USB Device: iBridge Bus
USB Device: Headset
USB Device: Apple T2 Controller
Thunderbolt Bus: Mac mini, Apple Inc., 41.2
Thunderbolt Bus: Mac mini, Apple Inc., 41.2

--------------

{"caused_by":"bridgeos","macos_version":"Mac OS X 10.14.6
(18G4032)","os_version":"Bridge OS 4.4
(17P4281)","macos_system_state":"sleep","incident_id":"B5CE1DB9-6282-4E11-8939-282B9E77CDD7","timestamp":"2020-04-24
23:59:35.00 +0000","bug_type":"210"}
{
"build" : "Bridge OS 4.4 (17P4281)",
"product" : "iBridge2,5",
"kernel" : "Darwin Kernel Version 19.4.0: Mon Mar 2 20:38:56 PST
2020; root:xnu-6153.101.6~2\/RELEASE_ARM64_T8010",
"incident" : "B5CE1DB9-6282-4E11-8939-282B9E77CDD7",
"crashReporterKey" : "c0dec0dec0dec0dec0dec0dec0dec0dec0de0001",
"date" : "2020-04-24 23:59:34.91 +0000",
"panicString" : "panic(cpu 0 caller 0xfffffff00f3a6380): SEP Panic:
:SEPD\/MDMA: 0x000147df 0x000094ff 0x0000ed79 0x0001273d 0x0001301d
0x000138eb 0x00013ac3 0x00000000 [hkntv]\n\nPanic app vers:
1267.100.68.0.1\nPanic app UUID:
BAE3410A-6B67-3FCB-8401-0571798742A1\nRoot task tag:
AppleSEPOS-1267.100.68.0.1\nRoot task vers:
AppleSEPOS-1267.100.68.0.1\nRoot task UUID:
513B436C-20EC-3599-9DE8-F7C5FD8E1F8A\n\nFirmware type: UNKNOWN
SEPOS\nSEP state: 9\nPM state: 2\nBoot state: 32\nMailbox
status:\nIDLE_STATUS: 0x00000068\nMAILBOX_SET: 0x00000110\nMAILBOX_CLR:
0x00000110\nINBOX_CTRL: 0x0002dd01\nOUTBOX_CTRL: 0x0002ee01\n\nMailbox
entries:\nUnavailable\nMailbox queue pointers: 25\/25 0\/0 -1\/-1
-1\/-1 -1\/-1 -1\/-1 -1\/-1 -1\/-1 -1\/-1 -1\/-1 19\/19 -1\/-1 0\/0
-1\/-1 -1\/-1 -1\/-1 1\/1 -1\/-1 4\/4 3\/3 -1\/-1 -1\/-1 -1\/-1 -1\/-1
-1\/-1 -1\/-1 -1\/-1 -1\/-1 -1\/-1 -1\/-1 -1\/-1 -1\/-1\nDebugger
message: panic\nMemory ID: 0x6\nOS version: 17P4281\nmacOS version:
18G4032\nKernel version: Darwin Kernel Version 19.4.0: Mon Mar 2
20:38:56 PST 2020; root:xnu-6153.101.6~2\/RELEASE_ARM64_T8010\nKernel
UUID: 24BEA3DB-10C2-36A4-A7D5-C71CE0D00021\niBoot version:
iBoot-5540.105.2\nsecure boot?: YES\nx86 EFI Boot State: 0x16\nx86
System State: 0x1\nx86 Power State: 0x2\nx86 Shutdown Cause: 0xec\nx86
Previous Power Transitions: 0x70706040002\nPCIeUp link state: not
available\nPaniclog version: 13\nKernel slide:
0x0000000007240000\nKernel text base:
0xfffffff00e244000\nmach_absolute_time: 0x1e377a34e80\nEpoch Time:
sec usec\n Boot : 0x5ea22b67 0x00059019\n Sleep :
0x00000000 0x00000000\n Wake : 0x00000000 0x00000000\n Calendar:
0x5ea37d54 0x000832bc\n\nPanicked task 0xffffffe0000dce00: 2336 pages,
161 threads: pid 0: kernel_task\nPanicked thread: 0xffffffe0002aba18,
backtrace: 0xffffffe01669b600, tid: 350\n\t\t lr: 0xfffffff00ea94764
fp: 0xffffffe01669b640\n\t\t lr: 0xfffffff00ea945c0 fp:
0xffffffe01669b6b0\n\t\t lr: 0xfffffff00ebaee7c fp:
0xffffffe01669b760\n\t\t lr: 0xfffffff00f05d62c fp:
0xffffffe01669b770\n\t\t lr: 0xfffffff00ea93f28 fp:
0xffffffe01669bae0\n\t\t lr: 0xfffffff00ea94280 fp:
0xffffffe01669bb30\n\t\t lr: 0xfffffff00f7de8f8 fp:
0xffffffe01669bb50\n\t\t lr: 0xfffffff00f3a6380 fp:
0xffffffe01669bb80\n\t\t lr: 0xfffffff00f39b8a4 fp:
0xffffffe01669bba0\n\t\t lr: 0xfffffff00efd0430 fp:
0xffffffe01669bbd0\n\t\t lr: 0xfffffff00ead7814 fp:
0xffffffe01669bbf0\n\t\t lr: 0xfffffff00ead741c fp:
0xffffffe01669bc90\n\t\t lr: 0xfffffff00f068514 fp:
0x0000000000000000\n\n",
"panicFlags" : "0x2",
"otherString" : "\n** Stackshot Succeeded ** Bytes Traced 89584 **\n",
"macOSPanicFlags" : "0x0",
"macOSPanicString" : "BAD MAGIC! (flag set in iBoot panic header), no
macOS panic log available",
"memoryStatus" :
{"compressorSize":0,"compressions":0,"decompressions":0,"busyBufferCount":0,"pageSize":16384,"memoryPressure":false,"memoryPages":{"active":6668,"throttled":0,"fileBacked":10950,"wired":4155,"purgeable":49,"inactive":2996,"free":12837,"speculative":3691}},

"processByPid" : {

+ a lot more

David Empson

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Apr 25, 2020, 7:06:51 PM4/25/20

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eastender <nos...@nospam.com> wrote:

> I've had this problem before but it went away. Now it's back and the
> only change I can put it down to is finally putting on the latest Apple
> security update. It's a Mojave system. My kids have been using it but I
> don't think they've messed anything up.
>
> On putting the system to sleep at night it crashes during the night. Is
> doing so every night.
>
> Details from the report below - any clues? Thanks

For anyone else interested: Macmini8,1 is a 2018 Mac Mini.

The "caused_by" bit mentioning "bridgeos" strongly implies that the T2
coprocessor has crashed.

Hunting around the web for similar cases, I found this thread:

https://forums.macrumors.com/threads/crash-on-sleep-mojave-10-14-6-mini-8-1.2229966/

where other people are reporting similar problems with a 2018 Mac Mini
crashing on sleep. The post at the start of the thread has an attached
crash log which has major characteristics similar to yours (older build
of 10.14.6, but same "SEP Panic" mentioned; I don't know yet what that
abbreviation means).

It therefore sounds like you are not alone, but no sign yet of how the
problem can be fixed. The thread mentions that Apple support wasn't
interested unless the computer was upgraded to Catalina and the problem
persisted. It also sounds like there was a discussion about it on Apple
Support Community but I haven't tracked down that thread.

As it happens, I also have a 2018 Mac Mini which is still running
Mojave. I haven't used it heavily but it has been asleep overnight many
times and I don't recall any cases of it crashing while asleep. It
doesn't have any panic logs in Console.

I haven't needed to use it recently while in lockdown at home, so had
not yet installed the latest security update. After doing that I can
confirm it has the same version numbers as yours for BootROM and
iBridge.

The question now boils down to what might trigger a crash in the T2 only
for SOME 2018 Mac Minis. A possibility is some difference in connected
peripherals which interact in some way with the T2.

The Mac mini doesn't have a built-in camera or microphone, which rules
out those possibilities (they might be a factor in other models such as
the 2018 and later MacBook Air/Pro). The T2 is also involved in audio
processing, so your USB headset might be involved in some way (even if
it is just due to disabling the built-in speaker).

An easy experiment for you to try:

Before putting the Mac Mini to sleep, disconnect the USB headset, check
that the system has automatically switched back to the built-in speaker
for output (e.g. via System Preferences > Sound), then put the computer
to sleep.

Does it make it through the night without crashing? If so, something to
do with audio (or that particular USB peripheral) seems like a good
suspect.

If the crashes still happen, then we'd need to look for other possible
causes.

--
David Empson
dem...@actrix.gen.nz

Alan B

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Apr 26, 2020, 4:08:13 AM4/26/20

to

On 2020-04-25, David Empson <dem...@actrix.gen.nz> wrote:
> eastender <nos...@nospam.com> wrote:
>
>> I've had this problem before but it went away. Now it's back and the
>> only change I can put it down to is finally putting on the latest Apple
>> security update. It's a Mojave system. My kids have been using it but I
>> don't think they've messed anything up.
>>
>> On putting the system to sleep at night it crashes during the night. Is
>> doing so every night.
>>
>> Details from the report below - any clues? Thanks
>
> For anyone else interested: Macmini8,1 is a 2018 Mac Mini.
>
> The "caused_by" bit mentioning "bridgeos" strongly implies that the T2
> coprocessor has crashed.
>
> Hunting around the web for similar cases, I found this thread:
>
> https://forums.macrumors.com/threads/crash-on-sleep-mojave-10-14-6-mini-8-1.2229966/
>
> where other people are reporting similar problems with a 2018 Mac Mini
> crashing on sleep. The post at the start of the thread has an attached
> crash log which has major characteristics similar to yours (older build
> of 10.14.6, but same "SEP Panic" mentioned; I don't know yet what that
> abbreviation means).

Secure Enclave Processor?

<https://support.apple.com/en-gb/guide/security/sec59b0b31ff/web>

<snip>

--
Cheers, Alan

Chris Ridd

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Apr 26, 2020, 6:01:44 AM4/26/20

to

Yes I think so; it is a specific part of the "T2" unit in most recent
Macs. T2 runs "bridgeos", as David says.

The only macOS changes I can see reported related to this bug just
change the error in the panic log to something that will help Apple
figure out what's going on. So it isn't fixed, it is widespread, but it
doesn't affect everyone.

Disconnecting the USB (?) headset seems about the easiest thing to try.
Other things to try which are probably just voodoo, would be resetting
NVRAM and the SMC.

--
Chris

Jaimie Vandenbergh

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Apr 26, 2020, 11:41:58 AM4/26/20

to

On 26 Apr 2020 at 00:06:49 BST, "David Empson" <David Empson> wrote:

> For anyone else interested: Macmini8,1 is a 2018 Mac Mini.
>
> The "caused_by" bit mentioning "bridgeos" strongly implies that the T2
> coprocessor has crashed.
>
> Hunting around the web for similar cases, I found this thread:
>
> https://forums.macrumors.com/threads/crash-on-sleep-mojave-10-14-6-mini-8-1.2229966/
>
> where other people are reporting similar problems with a 2018 Mac Mini
> crashing on sleep. The post at the start of the thread has an attached
> crash log which has major characteristics similar to yours (older build
> of 10.14.6, but same "SEP Panic" mentioned; I don't know yet what that
> abbreviation means).
>
> It therefore sounds like you are not alone, but no sign yet of how the
> problem can be fixed. The thread mentions that Apple support wasn't
> interested unless the computer was upgraded to Catalina and the problem
> persisted. It also sounds like there was a discussion about it on Apple
> Support Community but I haven't tracked down that thread.

I had this in my 2018 Mini when running Mojave. I only did that for a month or
so, then installed Catalina and never saw it again.

I did log it with Apple, but never got any followup.

Cheers - Jaimie
--
Being english is like visiting a zoo where all the
animals are other english people, in the rain.
-- Cyriak Harris