Mac OS 10.15.4: Random restarts due to panic(cpu 1 caller

Same here!!

I took my 2018 13" MBP to w/ Touch Bar to Genius bar over a month ago for a 'Bad Magic' error and they couldn't figure it out.

Yesterday I updated to Catalina 10.15.4 from previous version and have had random errors 3 times now for 'Panic: watchdog detected', 'Bad Magic!' , and ' panic: CPU CATERR detected'.

This is really frustrating especially now with everything going on. Its my only way of working from home.

I also own a 2018 MBP 13" i7/16GB and was also having Bad Magic crashes when on OS X 10.15.3. I did a Factory Restore and it seemed to help.

However, ever since I updated to OS X 10.15.4, I started getting the CPU CATERR. I am inclined to try another Factory Restore.

Worth mention I have 2 external monitors connected via a CalDigit USB-C hub.

I run AVG Free AV, Little Snitch, iStat, Capto, MS Office, Slack, Chrome and 8x8 in parallel.

Equally frustrated!

I'm having the same issue with my brand new (refurbished) iMac Pro that I just got yesterday.

It came with 10.14.5 so I upgraded directly to 10.15.4 and migrated from my 2017 iMac also running 10.15.4.

Here is my log:

panic(cpu 1 caller 0xfffffff021abefa4): x86 CPU CATERR detected

Debugger message: panic

Memory ID: 0xff

OS version: 17P4263

macOS version: 19E266

Kernel version: Darwin Kernel Version 19.4.0: Mon Mar 2 20:38:56 PST 2020; root:xnu-6153.101.6~2/RELEASE_ARM64_T8010

Kernel UUID: 24BEA3DB-10C2-36A4-A7D5-C71CE0D00021

iBoot version: iBoot-5540.105.2

secure boot?: YES

x86 EFI Boot State: not available

x86 System State: not available

x86 Power State: not available

x86 Shutdown Cause: not available

x86 Previous Power Transitions: not available

PCIeUp link state: 0x68921603

Paniclog version: 13

Kernel slide: 0x0000000019afc000

Kernel text base: 0xfffffff020b00000

mach_absolute_time: 0x24f3482ebd5

Epoch Time: sec usec

Boot : 0x5c081a28 0x000cee3f

Sleep : 0x5e864424 0x0001e24d

Wake : 0x5e864441 0x000c5945

Calendar: 0x5c09b7aa 0x0007f57e

Panicked task 0xffffffe00020b600: 2763 pages, 179 threads: pid 0: kernel_task

Panicked thread: 0xffffffe0005974d0, backtrace: 0xffffffe0154834b0, tid: 324

lr: 0xfffffff021350764 fp: 0xffffffe0154834f0

lr: 0xfffffff0213505c0 fp: 0xffffffe015483560

lr: 0xfffffff02146ae7c fp: 0xffffffe015483610

lr: 0xfffffff02191962c fp: 0xffffffe015483620

lr: 0xfffffff02134ff28 fp: 0xffffffe015483990

lr: 0xfffffff021350280 fp: 0xffffffe0154839e0

lr: 0xfffffff02209a934 fp: 0xffffffe015483a00

lr: 0xfffffff021abefa4 fp: 0xffffffe015483a30

lr: 0xfffffff021ab03d4 fp: 0xffffffe015483aa0

lr: 0xfffffff021ab22fc fp: 0xffffffe015483b50

lr: 0xfffffff021aafb0c fp: 0xffffffe015483be0

lr: 0xfffffff021a76f70 fp: 0xffffffe015483c10

lr: 0xfffffff021886abc fp: 0xffffffe015483c50

lr: 0xfffffff021886340 fp: 0xffffffe015483c90

lr: 0xfffffff021924514 fp: 0x0000000000000000

It must have happened when I manually put it to sleep pressing the power botton once. I noticed the fan was still running but the screen turned black. Upon returning I couldn't get the machine to wake up again.

I'm also having this issue with my new Macbook Pro purchase from this week. Becoming more worried that it's a hardware issue but can't pinpoint what's going on.

MacBook Pro (16-inch, 2019)

2.3 GHz 8-Core Intel Core i9

16 GB 2667 MHz DDR4

Radeon Pro 5500M 4 GB / Intel UHD Graphics 630 1536 MB

Early this week, I got a new computer and began to set everything up, downloading software (Chrome, Slack, Word), etc. And 15 minutes in, the computer screen/trackpad froze, the fan went full speed and shut down. That worried me on a new computer. Did not copy the error code.

Continued to have issues shut down issues throughout the week. Whenever the computer was left idle and went to sleep for more than 3+ hours, it would shut down for some strange reason. Always unexpected error shut down error when turning it back on. Didn't copy error code. I did an SMC reset, but it didn't help with the issue.

Today, I decided to factory reset by formatting the hard drive and installing new OS. And the same issue happened to me from day 1. While installing word, the computer screen/trackpad froze, the fan went full speed and shut down.

This is the error that I got and looking for suggestions... Should I get this device looked at by Apple? Would really hate to need to mail these in during these times.

panic(cpu 1 caller 0xfffffff0148bb7b4): x86 CPU CATERR detected

Debugger message: panic

Memory ID: 0x6

OS version: 17P4263

macOS version: 19E266

Kernel version: Darwin Kernel Version 19.4.0: Mon Mar 2 20:38:56 PST 2020; root:xnu-6153.101.6~2/RELEASE_ARM64_T8010

Kernel UUID: 3695E9D9-323E-350E-9A6E-65819BE397D7

iBoot version: iBoot-5540.105.2

secure boot?: YES

x86 EFI Boot State: 0x16

x86 System State: 0x0

x86 Power State: 0x0

x86 Shutdown Cause: 0x1

x86 Previous Power Transitions: 0x70707060400

PCIeUp link state: 0x89271614

Paniclog version: 13

Kernel slide:   0x000000000c884000

Kernel text base: 0xfffffff013888000

mach_absolute_time: 0x11ce46f1c9

Epoch Time:    sec    usec

 Boot  : 0x5e8827ae 0x00011040

 Sleep  : 0x00000000 0x00000000

 Wake  : 0x00000000 0x00000000

 Calendar: 0x5e88341d 0x00041aed

Panicked task 0xffffffe0006e7600: 3440 pages, 221 threads: pid 0: kernel_task

Panicked thread: 0xffffffe000aae4f8, backtrace: 0xffffffe00b1a34b0, tid: 332

 lr: 0xfffffff01414c764 fp: 0xffffffe00b1a34f0

 lr: 0xfffffff01414c5c0 fp: 0xffffffe00b1a3560

 lr: 0xfffffff014266e7c fp: 0xffffffe00b1a3610

 lr: 0xfffffff01471562c fp: 0xffffffe00b1a3620

 lr: 0xfffffff01414bf28 fp: 0xffffffe00b1a3990

 lr: 0xfffffff01414c280 fp: 0xffffffe00b1a39e0

 lr: 0xfffffff014f82934 fp: 0xffffffe00b1a3a00

 lr: 0xfffffff0148bb7b4 fp: 0xffffffe00b1a3a30

 lr: 0xfffffff0148acbe4 fp: 0xffffffe00b1a3aa0

 lr: 0xfffffff0148aeb0c fp: 0xffffffe00b1a3b50

 lr: 0xfffffff0148ac31c fp: 0xffffffe00b1a3be0

 lr: 0xfffffff014873780 fp: 0xffffffe00b1a3c10

 lr: 0xfffffff014682abc fp: 0xffffffe00b1a3c50

 lr: 0xfffffff014682340 fp: 0xffffffe00b1a3c90

 lr: 0xfffffff014720514 fp: 0x0000000000000000

Having exactly the same issue with MacBook Pro 16" i7 version.

I am almost sure, that this problem occurs only when I have plugged my Mac to external monitor.

Currently I am using 2x 4k monitors, and it crashes like, 2x - 3x a day and it is kind of annoying.

When I have plugged only 1 monitor, it doesn't seem to be different, It crashed just few minutes ago.

I have plugged them with DP -> USB-C cable directly. But this issue was present event when using Full HD monitor.

I don't think it is strictly related to temperature, because crash appeared to me at 50°C at least once, even though it seems like, most cases of unexpected shutdown happens under heavy performace.

I am almost sure, I didn't have this issue EVER without external monitor plugged in.

Also this issue never appeared on my MacBook Pro 13" 2019, which I used with the same accessories and it leads me to point, that MacBook Pro 16" has dedicated Graphic card, which is always used when external monitor is plugged in, so it might me connected.

Here are my logs:

panic(cpu 1 caller 0xfffffff0290377b4): x86 CPU CATERR detected

Debugger message: panic

Memory ID: 0xff

OS version: 17P4263

macOS version: 19E266

Kernel version: Darwin Kernel Version 19.4.0: Mon Mar 2 20:38:56 PST 2020; root:xnu-6153.101.6~2/RELEASE_ARM64_T8010

Kernel UUID: 3695E9D9-323E-350E-9A6E-65819BE397D7

iBoot version: iBoot-5540.105.2

secure boot?: YES

x86 EFI Boot State: 0x16

x86 System State: 0x0

x86 Power State: 0x0

x86 Shutdown Cause: 0xec

x86 Previous Power Transitions: 0x70707060400

PCIeUp link state: 0x1614

Paniclog version: 13

Kernel slide: 0x0000000021000000

Kernel text base: 0xfffffff028004000

mach_absolute_time: 0x941a5e31df

Epoch Time: sec usec

Boot : 0x5e8b0115 0x000c12c5

Sleep : 0x00000000 0x00000000

Wake : 0x00000000 0x00000000

Calendar: 0x5e8b6899 0x00072000

Panicked task 0xffffffe00064ea00: 3235 pages, 221 threads: pid 0: kernel_task

Panicked thread: 0xffffffe000a31520, backtrace: 0xffffffe010f4b4b0, tid: 336

lr: 0xfffffff0288c8764 fp: 0xffffffe010f4b4f0

lr: 0xfffffff0288c85c0 fp: 0xffffffe010f4b560

lr: 0xfffffff0289e2e7c fp: 0xffffffe010f4b610

lr: 0xfffffff028e9162c fp: 0xffffffe010f4b620

lr: 0xfffffff0288c7f28 fp: 0xffffffe010f4b990

lr: 0xfffffff0288c8280 fp: 0xffffffe010f4b9e0

lr: 0xfffffff0296fe934 fp: 0xffffffe010f4ba00

lr: 0xfffffff0290377b4 fp: 0xffffffe010f4ba30

lr: 0xfffffff029028be4 fp: 0xffffffe010f4baa0

lr: 0xfffffff02902ab0c fp: 0xffffffe010f4bb50

lr: 0xfffffff02902831c fp: 0xffffffe010f4bbe0

lr: 0xfffffff028fef780 fp: 0xffffffe010f4bc10

lr: 0xfffffff028dfeabc fp: 0xffffffe010f4bc50

lr: 0xfffffff028dfe340 fp: 0xffffffe010f4bc90

lr: 0xfffffff028e9c514 fp: 0x0000000000000000

I have had this problem since February 2020 with TWO brand new 16" mac book pros. Apple replaced the first Mac book pro after being unable to fix the problem. I waited three weeks for a new one and within 24 hours of receiving the second brand new 16" mac book pro, the problem occurred twice within 24 hours. It has occured repeatedly every day since. There are no peripherals attached. It sometimes happens when using Word, but there does not seem to be any rhyme or reason as an explanation as to why it happens. Engineering has not been able to fix the problem. As soon as the Apple stores open in Manhattan I will return the second new Mac book pro for full credit.

my configuration

MacBook Pro (16-inch, 2019)

2.4 GHz 8-Core Intel Core i9

64 GB 2667 MHz DDR4

Intel UHD Graphics 630 1536 MB

This is the error message from the freeze/restart that occurred a few minutes ago

panic(cpu 1 caller 0xfffffff00e39b7b4): x86 CPU CATERR detected

Debugger message: panic

Memory ID: 0x6

OS version: 17P4263

macOS version: 19E266

Kernel version: Darwin Kernel Version 19.4.0: Mon Mar  2 20:38:56 PST 2020; root:xnu-6153.101.6~2/RELEASE_ARM64_T8010

Kernel UUID: 3695E9D9-323E-350E-9A6E-65819BE397D7

iBoot version: iBoot-5540.105.2

secure boot?: YES

x86 EFI Boot State: 0x16

x86 System State: 0x0

x86 Power State: 0x0

x86 Shutdown Cause: 0x5

x86 Previous Power Transitions: 0x50604000100

PCIeUp link state: 0x89473614

Paniclog version: 13

Kernel slide:     0x0000000006364000

Kernel text base: 0xfffffff00d368000

mach_absolute_time: 0x152aedff2c2

Epoch Time:        sec       usec

  Boot    : 0x5e8a7ef4 0x000e4b17

  Sleep   : 0x5e8ce0d9 0x000a17ee

  Wake    : 0x5e8ce2da 0x000499d6

  Calendar: 0x5e8ceaf9 0x0009e666

Panicked task 0xffffffe000437c00: 3419 pages, 220 threads: pid 0: kernel_task

Panicked thread: 0xffffffe000808a90, backtrace: 0xffffffe01631b4b0, tid: 339

                          lr: 0xfffffff00dc2c764  fp: 0xffffffe01631b4f0

                          lr: 0xfffffff00dc2c5c0  fp: 0xffffffe01631b560

                          lr: 0xfffffff00dd46e7c  fp: 0xffffffe01631b610

                          lr: 0xfffffff00e1f562c  fp: 0xffffffe01631b620

                          lr: 0xfffffff00dc2bf28  fp: 0xffffffe01631b990

                          lr: 0xfffffff00dc2c280  fp: 0xffffffe01631b9e0

                          lr: 0xfffffff00ea62934  fp: 0xffffffe01631ba00

                          lr: 0xfffffff00e39b7b4  fp: 0xffffffe01631ba30

                          lr: 0xfffffff00e38cbe4  fp: 0xffffffe01631baa0

                          lr: 0xfffffff00e38eb0c  fp: 0xffffffe01631bb50

                          lr: 0xfffffff00e38c31c  fp: 0xffffffe01631bbe0

                          lr: 0xfffffff00e353780  fp: 0xffffffe01631bc10

                          lr: 0xfffffff00e162abc  fp: 0xffffffe01631bc50

                          lr: 0xfffffff00e162340  fp: 0xffffffe01631bc90

                          lr: 0xfffffff00e200514  fp: 0x0000000000000000

I have the same problem

panic(cpu 1 caller 0xfffffff00e39b7b4): x86 CPU CATERR detected

Debugger message: panic

Memory ID: 0x6

OS version: 17P4263

macOS version: 19E266

Kernel version: Darwin Kernel Version 19.4.0: Mon Mar  2 20:38:56 PST 2020; root:xnu-6153.101.6~2/RELEASE_ARM64_T8010

Kernel UUID: 3695E9D9-323E-350E-9A6E-65819BE397D7

iBoot version: iBoot-5540.105.2

secure boot?: YES

x86 EFI Boot State: 0x16

x86 System State: 0x0

x86 Power State: 0x0

x86 Shutdown Cause: 0x5

x86 Previous Power Transitions: 0x50604000100

PCIeUp link state: 0x89473614

Paniclog version: 13

Kernel slide:     0x0000000006364000

Kernel text base: 0xfffffff00d368000

mach_absolute_time: 0x152aedff2c2

Epoch Time:        sec       usec

  Boot    : 0x5e8a7ef4 0x000e4b17

  Sleep   : 0x5e8ce0d9 0x000a17ee

  Wake    : 0x5e8ce2da 0x000499d6

  Calendar: 0x5e8ceaf9 0x0009e666

Panicked task 0xffffffe000437c00: 3419 pages, 220 threads: pid 0: kernel_task

Panicked thread: 0xffffffe000808a90, backtrace: 0xffffffe01631b4b0, tid: 339

                          lr: 0xfffffff00dc2c764  fp: 0xffffffe01631b4f0

                          lr: 0xfffffff00dc2c5c0  fp: 0xffffffe01631b560

                          lr: 0xfffffff00dd46e7c  fp: 0xffffffe01631b610

                          lr: 0xfffffff00e1f562c  fp: 0xffffffe01631b620

                          lr: 0xfffffff00dc2bf28  fp: 0xffffffe01631b990

                          lr: 0xfffffff00dc2c280  fp: 0xffffffe01631b9e0

                          lr: 0xfffffff00ea62934  fp: 0xffffffe01631ba00

                          lr: 0xfffffff00e39b7b4  fp: 0xffffffe01631ba30

                          lr: 0xfffffff00e38cbe4  fp: 0xffffffe01631baa0

                          lr: 0xfffffff00e38eb0c  fp: 0xffffffe01631bb50

                          lr: 0xfffffff00e38c31c  fp: 0xffffffe01631bbe0

                          lr: 0xfffffff00e353780  fp: 0xffffffe01631bc10

                          lr: 0xfffffff00e162abc  fp: 0xffffffe01631bc50

                          lr: 0xfffffff00e162340  fp: 0xffffffe01631bc90

                          lr: 0xfffffff00e200514  fp: 0x0000000000000000

At the moment there is no fix other than looking at recently installed apps and removing them. Well I haven’t heeded that advice yet but my often crashes have not happened in a few days, so I’m somewhat reluctant to break it if it’s working.

Like you and a whole lot of us, @apple can you get off your bum and do something about this annoying crash.

I am having the exact same problem right now too. Is there any suggestions on what to do to fix it? I am also missing my Touch Bar.

Debugger message: panic

Memory ID: 0xff

OS version: 17P4263

macOS version: 19E266

Kernel version: Darwin Kernel Version 19.4.0: Mon Mar  2 20:38:56 PST 2020; root:xnu-6153.101.6~2/RELEASE_ARM64_T8010

Kernel UUID: 3695E9D9-323E-350E-9A6E-65819BE397D7

iBoot version: iBoot-5540.105.2

secure boot?: YES

MacBook Pro (16-inch, 2019)

2.3 GHz 8-core i9

16 GB

AMD Radeon Pro 5500M 4 GB

1TB

With the 10.15.4, my Macbook retarts everyday 3 or 4 times.

After I have disabled the "Automatic graphics switching", my Macbook runs perfectly in the past 40 Hours, without any annoying retarts! Hope this helps.

Disabling "Automatic graphics switching" may have reduced the frequency of the crashes, Friday 3rd i had 4 of them in one day, then after the change i had 2 in the entire week, i'm not super confident though as it happened in the past too that the mbp stayed stable for a while.

I've had an elevated Apple support case number on this since Mar 29, working with the same support contact in many phone and email communications. The fix above was one of the first suggested and didn't work. Nothing has worked so far after sending multiple log files to Apple support. Has not been isolated so far to any peripherals (including 2 external monitors), applications, boot up files. Updated IOS 10.15.4 released Apr 8(?) also didn't help.

I agree. I also worked with the Genius Bar on the first new 16 inch MBP in February. Returned it. They sent me a new one. Same problem. Level 2 engineering could not fix it. I will return it as soon as the store reopens. It is a bit odd that both were custom orders in Feb but date on the Mac is Dec 2019.

No fix for this problem

panic(cpu 0 caller 0xfffffff0187d37b4): x86 CPU CATERR detected

Debugger message: panic

Memory ID: 0x6

OS version: 17P4281

macOS version: 19E287

Kernel version: Darwin Kernel Version 19.4.0: Mon Mar  2 20:38:56 PST 2020; root:xnu-6153.101.6~2/RELEASE_ARM64_T8010

Kernel UUID: 3695E9D9-323E-350E-9A6E-65819BE397D7

iBoot version: iBoot-5540.105.2

secure boot?: YES

x86 EFI Boot State: 0x16

x86 System State: 0x0

x86 Power State: 0x0

x86 Shutdown Cause: 0xc1

x86 Previous Power Transitions: 0x10001000100

PCIeUp link state: 0x89473614

Paniclog version: 13

Kernel slide:     0x000000001079c000

Kernel text base: 0xfffffff0177a0000

mach_absolute_time: 0x3fd7004ffc

Epoch Time:        sec       usec

  Boot    : 0x5e970fe9 0x000a6ff9

  Sleep   : 0x5e972948 0x000d5ef4

  Wake    : 0x5e972a6a 0x000342ed

  Calendar: 0x5e973de2 0x00000363

Panicked task 0xffffffe00048b000: 3433 pages, 220 threads: pid 0: kernel_task

Panicked thread: 0xffffffe00084fa18, backtrace: 0xffffffe01613b4b0, tid: 331

                          lr: 0xfffffff018064764  fp: 0xffffffe01613b4f0

                          lr: 0xfffffff0180645c0  fp: 0xffffffe01613b560

                          lr: 0xfffffff01817ee7c  fp: 0xffffffe01613b610

                          lr: 0xfffffff01862d62c  fp: 0xffffffe01613b620

                          lr: 0xfffffff018063f28  fp: 0xffffffe01613b990

                          lr: 0xfffffff018064280  fp: 0xffffffe01613b9e0

                          lr: 0xfffffff018e9a934  fp: 0xffffffe01613ba00

                          lr: 0xfffffff0187d37b4  fp: 0xffffffe01613ba30

                          lr: 0xfffffff0187c4be4  fp: 0xffffffe01613baa0

                          lr: 0xfffffff0187c6b0c  fp: 0xffffffe01613bb50

                          lr: 0xfffffff0187c431c  fp: 0xffffffe01613bbe0

                          lr: 0xfffffff01878b780  fp: 0xffffffe01613bc10

                          lr: 0xfffffff01859aabc  fp: 0xffffffe01613bc50

                          lr: 0xfffffff01859a340  fp: 0xffffffe01613bc90

                          lr: 0xfffffff018638514  fp: 0x0000000000000000

I’ve had this problem since upgrading to 10.15.4, no solution yet from Apple engineers working my case number. Since my panic always occurs while sleeping, I have changed power saver and screen saver to never allow sleep mode, and to power off whenever away from MacBook for extended period.