new Macbook pro 2018 random restarts

Thanks!

It looks like I still need to do more with homebrew.

But your shutdown code is interesting. Unfortunately, Apple has never published its internal lists of shutdown codes and meanings. There are some leaked documents online, but generally it is a mystery.

When I do a search for "Last Shutdown Cause: -20 - Unknown" the only hits are from EtreCheck reports run on an iMac Pro. This is the only other Mac that has a Secure Enclave with embedded iOS and ARM chip. It seems reasonable to assume that -20 is a panic or crash related to that embedded system and that is what triggers the restart.

Do you have any other cryptic diagnostic files on or around 2018-07-18 07:28:02? That might help shed some light on the problem.

However, I don't think this is anything you are going to be able to fix yourself. I would appreciate any additional information you could post that might help EtreCheck identify and report this problem. But ultimately, you are going to have to take that machine back to Apple. They might also be interested in those diagnostic files.

The next line of defense is typically to run an etrecheck report, and if you do not see obvious problems, use the "Share" button, then paste the report into reply on the forums. No personally-identifiable information is included in the report.

User tip: Using etrecheck

Having a dozen pairs of eyes look at it often turns up different items, that one Reader does not see.

For what its worth, I took my 13" Quadcore 500gig 16 gig RAM back to Apple store and after they asked a few questions about what I have done to attempt to resolve they offered to replace the device with what they had in the store.

They only had the 1Tb device in a like configuration, I did a little negotiation with them to not have to eat the full upgrade cost and essentially they said if I buy AppleCare on the spot with some business discounts it was pretty close to a wash.

I have been running this Mac in the same fashion I was the other with the same software, etc. and I have yet to have any resets in two and a half days.

I will keep everybody apprised.

Report are stored here:

/Library/Logs/DiagnosticReports

You can paste that into

Finder > Go Menu > Go to Folder...

... and get directly there.

if you have any with date&time and ending in .panic, we would like to see the entire report.

Please do not post more than 20 lines of an Application panic or hang -- its information is only useful to the developer while actively debugging.

Hello David,

Thanks for posting your EtreCheck report and the other information. Very interesting!

Can you confirm that when you ran your EtreCheck report it was 3 hours after you experienced a random restart? Or did you restart the machine manually?

I am curious about that -11 Unknown shutdown code. It would be great to make that more of a "known" shutdown code.

It looks like that panic report was actually a panic from your T2 "Secure Enclave" chip running iOS. It happened about 2 hours after restarting. Apparently the system was able to recover. I don't know if it was an earlier problem with the T2 that cause the shutdown.

As for EtreCheck, those "unsigned files" aren't adware. They are homebrew. Did homebrew create those files or did you? Because I'm about to say bad things about them. If you created them, please don't take it personally. 🙂 EtreCheck is interpreting those files as e-mail addresses and redacting them. Launchd files should have descriptive names and labels. I have added many whitelist entries for all the files that homebrew creates. If this is their new naming scheme, then I'm officially defeated. I can't whitelist those. I suppose I could whitelist any file that starts with "homebrew". (Note to all the malware authors of the world: please use the prefix "homebrew" for new exploits.) Perhaps I'll remove all homebrew entries from the whitelist and flag any use of homebrew as a minor adware issue. Obviously homebrew is safe and not malware, but there is no way to prove that without valid digital signatures.

You are not entirely on the right track. Tip macOS system level panics are logged as follows:

panic-full-yyyy-mm-dd-hhmmss.xxx.ips

under

/Library/Logs/DiagnosticReports/ProxiedDevice-Bridge/Retired

or one level up, if they are still staged in for uploading the reports to apple

This is tested to be true from MBP 15 2018

If your Mac is still under 90 days old, call Applecare for free.

Or start an online chat about it.

There are many, many, many different things that can cause your Mac to restart, seemingly at random. This thread has centered itself around BridgeOS kernel panics, but some posters are not having that problem.

If that is not your issue, you are welcome to start your own thread, where you can get individual help from Readers here. Readers can not keep track of what problems may be afflicting what Posters when there i.e. a huge "me, too" thread like this one, so poster's complaints may go unanswered.

Apple Support Communities is a User-to-User support forum. If other users can not help you think of a fix, No further help is likely to be forthcoming using this medium. There are no standard mechanisms for escalating problems to Apple Support from here, and Apple does NOT monitor these forums looking for trends and outstanding issues.

DO NOT "wait for Apple to provide a fix". Unless and until a large number of users present their issues through standard problem-reporting channels, Apple does not know there is a problem, and is NOT working on a fix. Being selfish is the best policy, getting yours fixed helps everyone.

If advice supplied here does not provide resolution, You must take additional steps to resolve your issues. Contact Apple support directly through one of these methods:

• contact telephone support (free for 90 days with a new Mac, of for three years with AppleCare purchase)

• make an appointment at the genius bar at an Apple-owned store for hardware evaluation and advice (free anytime, but after five years parts may no longer be available).

• initiate an Online chat 

• Visit an Apple Authorized Service Provider

Same problem here. Macbook will randomly restart. It's happened about once every 3 days or so for me. Here are my EtreCheck results: (this report was run about 10 minutes after last restart)

EtreCheck version: 4.3.6 (4D041)

Report generated: 2018-08-17 11:15:58

Download EtreCheck from https://etrecheck.com

Runtime: 2:11

Performance: Excellent

Problem: Computer is restarting

Major Issues:

Anything that appears on this list needs immediate attention.

Unsigned files - There are unsigned software installed that could be adware and should be reviewed.

Minor Issues:

These issues do not need immediate attention but they may indicate future problems.

Apps crashing - There have been numerous app crashes.

32-bit Apps - This machine has 32-bits apps that may have problems in the future.

Abnormal shutdown - Your machine shut down abnormally.

Hardware Information:

15" MacBook Pro with Thunderbolt 3 and Touch ID (Mid 2018)

MacBook Pro Model: MacBookPro15,1

1 2.9 GHz Intel Core i9 (i9-8950HK) CPU: 6-core

32 GB RAM - Not upgradeable

BANK 0/ChannelA-DIMM0 - 16 GB DDR4 2400 ok

BANK 2/ChannelB-DIMM0 - 16 GB DDR4 2400 ok

Battery: Health = Normal - Cycle count = 18

Video Information:

Intel UHD Graphics 630 - VRAM: 1536 MB

Radeon Pro 560X - VRAM: 4096 MB

Color LCD

Drives:

disk0 - APPLE SSD AP1024M 1.00 TB (Solid State - TRIM: Yes)

Internal PCI-Express 8.0 GT/s x4 NVM Express

disk0s1 - EFI [EFI] 315 MB

disk0s2 1.00 TB

disk1s1 - Macintosh HD (APFS) 1.00 TB (356.47 GB used)

disk1s2 - Preboot (APFS) [APFS Preboot] 1.00 TB (41 MB used)

disk1s3 - Recovery (APFS) [Recovery] 1.00 TB (1.03 GB used)

disk1s4 - VM (APFS) [APFS VM] 1.00 TB (1.07 GB used)

Mounted Volumes:

disk1s1 - Macintosh HD 1.00 TB (641.42 GB free)

APFS

Mount point: /

Encrypted

disk1s4 - VM [APFS VM] 1.00 TB (641.42 GB free)

APFS

Mount point: /private/var/vm

Encrypted

Network:

Interface en8: USB 10/100/1000 LAN

Interface en9: iPad

Interface en7: iPhone

Interface en0: Wi-Fi

802.11 a/b/g/n/ac

One IPv4 address

Interface en6: Bluetooth PAN

Interface bridge0: Thunderbolt Bridge

iCloud Quota: 4.70 GB available

System Software:

macOS High Sierra 10.13.6 (17G2208)

Time since boot: Less than an hour

System Load: 2.01 (1 min ago) 2.28 (5 min ago) 2.36 (15 min ago)

Security:

Unsigned Files:

Launchd: /Library/LaunchDaemons/com.rogueamoeba.aceagent.plist

Executable: aceagent

32-bit Applications:

10 32-bit apps

System Launch Agents:

System Launch Daemons:

Launch Agents:

Launch Daemons:

User Launch Agents:

User Login Items:

Dropbox Application (Dropbox, Inc. - installed 2018-08-16)

(/Applications/Dropbox.app)

proXPN Application (proXPN Direct, LLC - installed 2017-09-08)

(/Applications/proXPN.app)

iTunesHelper Application (Apple - installed 2018-08-03)

(/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

Magnet Application (Mac App Store - installed 2018-08-03)

(/Applications/Magnet.app)

Internet Plug-ins:

AdobeAAMDetect: (installed 2018-08-03)

QuickTime Plugin: (installed 2018-07-04)

Time Machine:

Skip System Files:

Mobile backups:

Auto backup: Yes

Volumes being backed up:

Macintosh HD: Disk size: 1.00 TB - Disk used: 358.82 GB

Destinations:

T**********E [Local] (Last used)

Total size: 4.00 TB

Total number of backups: 42

Oldest backup: 2017-02-07 16:27:41

Last backup: 2018-08-14 15:09:36

Top Processes by CPU:

Top Processes by Memory:

Top Processes by Network Use:

Top Processes by Energy Use:

Virtual Memory Information:

Software Installs (past 30 days):

Diagnostics Information (past 7 days):

2018-08-17 10:59:47 Last Shutdown Cause: -20 - Unknown

2018-08-16 09:35:42 Adobe Premiere Pro CC 2018.app Hang

/Applications/Adobe Premiere Pro CC 2018/Adobe Premiere Pro CC 2018.app

2018-08-15 15:09:44 Google Chrome.app Hang (2 times)

/Applications/Google Chrome.app

2018-08-15 14:12:52 CEPHtmlEngine.app Crash (7 times)

/Applications/Adobe After Effects CC 2018/Adobe After Effects CC 2018.app/Contents/MacOS/CEPHtmlEngine.app

End of report

Hi, Guys!

I have the same issue.

I’ve noticed this trouble appears each time I try enter system preferences menu. Moreover Touch ID icon in this menu appears a few seconds lately after opening the window. And then system goes fault.

This issue appeared on clean macOS Mojave. I did downgrade to High Sierra. No result(((

In High Sierra there is no Logs.

DavidMBP2018 wrote:

As far as I remember, 3 hours prior to running EtreCheck, I was working with the support guy from Apple on the phone. We did several shut-down and restarts. Some of them he asked me to hold the Shift key immediately after turning it on and one of the times he asked me to click on the power button for 8 seconds, wait 5 seconds and then click again to power on.

OK. Thanks. It's nothing then.

As to the Homebrew. I didn't do any manual changes. The unsinged you see there are: mysql@5.7 and php@5.6. Both are not the latest version, and that's why they have "@version" sign.

OK. Perhaps I can get away with just adding a homebrew exclusion to my privacy-protection logic. I might still flag homebrew as a minor issue.

I'm sorry, but I don't have any insight into your random restart issue. It would be helpful if you could post another EtreCheck report after you had experienced one of these restarts. Then, the shutdown code would accurate reflect whatever happened during the shutdown.

Do you have the system setup for automatic install of software updates? That could trigger a restart.

Having the same issue. MacBook Pro, 15 inch i9 CPU, 1TB SSD. Had it 6 months, no new software installed, it's been a week it shuts down all the time. Working with support to figure it out. Went to Apple store, they simply reinitialized the machine. Came home, same problem... Waiting for a resolution