New MacBook kernel panics

[vahram_sf]

10.15.5 Has been worse for me. Now i can reproduce the issue at any second.
Lid closed, connected to external screen. The second it goes to sleep it's guaranteed panic cpu. I unplugged the power on accident to my whole desk and instant panic.
I'm going to contact Apple. It makes it impossible to work on the machine.

 

[Agung Putranto]

I just have 2 kernel panics within an hour and then another one after 2 hours. These kernel panics drive me mad...
I have turned power nap off, automatic graphics switching off and reset SMC... none of those work....

Are you connected to external display? just happened today with my 16", external 4k connected clamshell mode, power connected, went to dinner and found out its panic when i got back, never happened since i bought it the first day it came out ,.. 10.15.5

 

[woogington]

Quick update - I installed 10.15.6 this morning and so far so good, no panics/crashes yet. Not like I've done excessive testing but it used to happen every time I put the system to sleep while plugged into an external monitor (in 10.15.5, with power nap off) and it's successfully slept and woken a few times today without issue.



Really hoping this is solved now but will report back if I get any more issues.

 

[Agung Putranto]

Quick update - I installed 10.15.6 this morning and so far so good, no panics/crashes yet. Not like I've done excessive testing but it used to happen every time I put the system to sleep while plugged into an external monitor (in 10.15.5, with power nap off) and it's successfully slept and woken a few times today without issue.



Really hoping this is solved now but will report back if I get any more issues.

Thank you, just updated to 10.15.6, lets see

EDIT:
Confirmed, fixed, 10.15.6 , finally

 

[Cosmo M3]

Thank you, just updated to 10.15.6, lets see

EDIT:
Confirmed, fixed, 10.15.6 , finally

Thank you, just updated to 10.15.6, lets see

EDIT:
Confirmed, fixed, 10.15.6 , finally

Mine seems to have been fixed with Catalina 10.15.6

 

[Falcon80]

I will try this weekend. Thanks for the update, guys.

 

[Falcon80]

I can confirm the fix works. At least, it is working fine for 3 days.

 

[joerick]

I also haven't seen a single problem since the 10.15.6 update. Phew!

 

[joerick]

Ah, right on cue, I get one.

panic(cpu 2 caller 0xffffff7f8e9a1aae): watchdog timeout: no checkins from watchdogd in 308 seconds (7927 totalcheckins since monitoring last enabled), shutdown in progress
Backtrace (CPU 2), Frame : Return Address
0xffffff8743eabc40 : 0xffffff800df1a65d 
0xffffff8743eabc90 : 0xffffff800e054a75 
0xffffff8743eabcd0 : 0xffffff800e0465fe 
0xffffff8743eabd20 : 0xffffff800dec0a40 
0xffffff8743eabd40 : 0xffffff800df19d27 
0xffffff8743eabe40 : 0xffffff800df1a117 
0xffffff8743eabe90 : 0xffffff800e6c1b28 
0xffffff8743eabf00 : 0xffffff7f8e9a1aae 
0xffffff8743eabf10 : 0xffffff7f8e9a1486 
0xffffff8743eabf50 : 0xffffff7f8e9b6d9c 
0xffffff8743eabfa0 : 0xffffff800dec013e 
      Kernel Extensions in backtrace:
         com.apple.driver.watchdog(1.0)[832CC890-EE61-33E0-8FD4-8D354BCD0921]@0xffffff7f8e9a0000->0xffffff7f8e9a8fff
         com.apple.driver.AppleSMC(3.1.9)[AB612149-B321-3B95-8741-B99E79274FCD]@0xffffff7f8e9a9000->0xffffff7f8e9c7fff
            dependency: com.apple.driver.watchdog(1)[832CC890-EE61-33E0-8FD4-8D354BCD0921]@0xffffff7f8e9a0000
            dependency: com.apple.iokit.IOACPIFamily(1.4)[68557A36-4EE1-372A-983B-BB2769FDB8E0]@0xffffff7f8e909000
            dependency: com.apple.iokit.IOPCIFamily(2.9)[B130A8B7-967F-330E-942F-E0BB93C71C56]@0xffffff7f8e912000

Judging by the replies on here, the software problem seems to be fixed, so maybe its a hardware issue.

 

[mechazawa42]

Hello, I'm currently on 10.15.6, which fixed the kernel panic issue. Now there's this supplemental update in queue and before I mindlessly hit that update button like usual, I just wanted to ask if someone stumbled into any new or old problems. Thanks!

 

[enjoymac]

Hi, I have this problem on a 2017 13" MBP. The same: after 10.15.4 update, panic after going to sleep, mostly when connected to power, and then I have try for like 50 times to restart it. It's very frustrating. 10.15.6 did not solved it. Reset SMC only worked for a couple of days, now it does not help at all. I have reinstalled the OS (10.15.6) from scratch, and it's the same.
Can anyone help me, please?

 

[glhughes]

Found this thread after getting the same kernel panics about sleeping on 10.15.7 with my 2020 13" MBP. I found this thread via the source file/line number - IOServicePM.cpp:5296. I'll be watching a YouTube video while falling asleep, and when I wake up the machine in the morning it has rebooted and presents the crash dialog after logging in. Seems to happen a couple times a week. Power Nap is off. I've just reset the SMC to see if that helps.