MacBook Pro reboot randomly

Question

Level 1

8 points

MacBook Pro reboot randomly

MacBook Pro (13-inch, 2016, Two Thunderbolt 3 ports)

macOS Catalina, version 10.15.4

Suddenly no response, touch pad cannot be pushed. After about 1 minute, the computer reboot. Happen several times a day. Sometime there are 3-5 reboots within 10 minutes.

Have this old problem two years ago. Replaced motherboard when the computer was in warrantee. It happened again in last couple of month. Tried re-installed macOS Sierra on a clean drive (re-partitoned), still have the reboot problem. Upgrade to macOS Catilina. Run about two or three days, reboot happened again.

MacBook Pro

Posted on Apr 22, 2020 7:10 PM

Reply

Answer 1

Apr 23, 2020 9:58 AM in response to honda177

You said you did not have any stored Panic reports, But this "boiler-plate" text I wrote may give you some ideas about what might be wrong. (Memory problem?):

There are three quick take-aways from any panic report.

1) The panic-reason,

2) the extensions present at the "scene of the crime", and

3) the BSD process in which the problem occurred.

Take look at your other reports. What you are trying to determine is whether there is a TREND.

Case A) There is a trend: This same panic occurs in each case, with the same extensions present, in the same BSD process. A trend can indicate corrupted software or a Hardware problem that can be tracked down and solved.

Case B) There is a decided NON-Trend. The panics occur "all over the Map" for different panic reasons and in different BSD processes, with different extensions present.

A Non-trend suggests you may have RAM memory problems. MacOS slightly randomizes the load point of key routines on each startup, as a hedge against fixed-address attacks. This causes a marginal memory cell to move into different routines each time your Mac starts up.

Reply

Answer 2

honda177 Author

Level 1

8 points

Apr 22, 2020 7:16 PM in response to honda177

All kernel extensions are from com.apple.

$ kextstat |grep -v com.apple.

Index Refs Address Size Wired Name (Version) UUID <Linked Against>

kextstat

Reply

Answer 3

honda177 Author

Level 1

8 points

Apr 22, 2020 7:12 PM in response to honda177

There is no kernel panic in /Library/Logs/DiagnosticReports/

$ ll /Library/Logs/DiagnosticReports/*.panic

ls: /Library/Logs/DiagnosticReports/*.panic: No such file or directory

Reply

Answer 4

honda177 Author

Level 1

8 points

Apr 22, 2020 7:24 PM in response to honda177

I run out of ideas. Want to give it last shot before trade it in. Thanks for any help!

Reply

Answer 5

Apr 23, 2020 9:10 AM in response to honda177

MacOS completely up-to-date?

no one wants to debug an issue that has already been solved.

Reply

Answer 6

honda177 Author

Level 1

8 points

Apr 23, 2020 9:50 AM in response to Grant Bennet-Alder

Yes, macOS is completely up-to-date.

(Apple Logo) -> About This Mac -> Software Update ...

"Your Mac is up to date -- macOS Catalina 10.15.4 (19E287)

Last checked: Today at 12:42 PM"

Reply

Answer 7

honda177 Author

Level 1

8 points

Apr 22, 2020 7:21 PM in response to honda177

Four reboots today. Latest message in system.log are below.

$ grep BOOT_TIME /var/log/system.log

Apr 22 14:00:02 localhost bootlog[0]: BOOT_TIME 1587578402 0

Apr 22 14:07:04 localhost bootlog[0]: BOOT_TIME 1587578824 0

Apr 22 14:09:33 localhost bootlog[0]: BOOT_TIME 1587578973 0

Apr 22 14:12:39 localhost bootlog[0]: BOOT_TIME 1587579159 0

$ grep -B2 BOOT_TIME /var/log/system.log

Apr 22 13:56:48 MacBookPro systemstats[102]: assertion failed: 19E287: systemstats + 669480 [2CCDADFD-EBCA-38D8-8B60-43B43136A69B]: 0x5

Apr 22 13:57:53 MacBookPro syslogd[92]: ASL Sender Statistics

Apr 22 14:00:02 localhost bootlog[0]: BOOT_TIME 1587578402 0

--

Apr 22 14:03:44 MacBookPro com.apple.xpc.launchd[1] (com.apple.CloudDocs.MobileDocumentsFileProvider[517]): Service exited due to SIGKILL | sent by launchd[1]

Apr 22 14:03:59 MacBookPro CoreSpotlightService[706]: BUG in libdispatch: 19E287 - 1775 - 0x1

Apr 22 14:07:04 localhost bootlog[0]: BOOT_TIME 1587578824 0

--

Apr 22 14:08:07 MacBookPro com.apple.xpc.launchd[1] (com.apple.coreimportd): Unknown key for dictionary: NoEnvironmentVariables

Apr 22 14:08:16 MacBookPro loginwindow[156]: There is still an active connection

Apr 22 14:09:33 localhost bootlog[0]: BOOT_TIME 1587578973 0

--

Apr 22 14:11:24 MacBookPro iMovie[423]: BUG in libdispatch client: mach_recv, monitored resource vanished before the source cancel handler was invoked { 0x6000008fd900[source], ident: 255235 / 0x3e503, handler: 0x10865daa0 }

Apr 22 14:11:42 MacBookPro com.apple.geod[614]: objc[614]: Class GEOETAProvider is implemented in both /System/Library/PrivateFrameworks/GeoServices.framework/Versions/A/GeoServices and /System/Library/PrivateFrameworks/GeoServices.framework/Versions/A/XPCServices/com.apple.geod.xpc/Contents/MacOS/com.apple.geod. One of the two will be used. Which one is undefined.

Apr 22 14:12:39 localhost bootlog[0]: BOOT_TIME 1587579159 0

Reply

MacBook Pro reboot randomly

Similar questions