Panic - Watchdog Timeout: no checkins from watchdogd in 185 seconds

Most of the time I reboot my MBP 15-inch Mid 2014 with macOS Catalina 10.15.3 I get this... I tried PRAM and SCM reset but it comes back.


panic(cpu 2 caller 0xffffff7f88f3aaae): watchdog timeout: no checkins from watchdogd in 185 seconds (719 totalcheckins since monitoring last enabled), shutdown in progress

Backtrace (CPU 2), Frame : Return Address

0xffffff81e6debc40 : 0xffffff8007b3bb2b

0xffffff81e6debc90 : 0xffffff8007c734d5

0xffffff81e6debcd0 : 0xffffff8007c64f4e

0xffffff81e6debd20 : 0xffffff8007ae2a40

0xffffff81e6debd40 : 0xffffff8007b3b217

0xffffff81e6debe40 : 0xffffff8007b3b5fb

0xffffff81e6debe90 : 0xffffff80082d2b25

0xffffff81e6debf00 : 0xffffff7f88f3aaae

0xffffff81e6debf10 : 0xffffff7f88f3a472

0xffffff81e6debf50 : 0xffffff7f88f4fe76

0xffffff81e6debfa0 : 0xffffff8007ae213e

Kernel Extensions in backtrace:

com.apple.driver.watchdog(1.0)[053A5D15-51D4-3E61-978B-EB435FA4BD0A]@0xffffff7f88f39000->0xffffff7f88f41fff

com.apple.driver.AppleSMC(3.1.9)[8D698096-1F90-3679-8151-22A7665ED287]@0xffffff7f88f42000->0xffffff7f88f60fff

dependency: com.apple.iokit.IOACPIFamily(1.4)[3D78401B-5D2D-33BC-9E41-DD2164EA874D]@0xffffff7f88f30000

dependency: com.apple.driver.watchdog(1)[053A5D15-51D4-3E61-978B-EB435FA4BD0A]@0xffffff7f88f39000

dependency: com.apple.iokit.IOPCIFamily(2.9)[ADD485B5-3EF8-37C4-B3C5-F86326E497A4]@0xffffff7f88651000


BSD process name corresponding to current thread: kernel_task


Mac OS version:

19D76


Kernel version:

Darwin Kernel Version 19.3.0: Thu Jan 9 20:58:23 PST 2020; root:xnu-6153.81.5~1/RELEASE_X86_64

Kernel UUID: A8DDE75C-CD97-3C37-B35D-1070CC50D2CE

Kernel slide: 0x0000000007800000

Kernel text base: 0xffffff8007a00000

__HIB text base: 0xffffff8007900000

System model name: MacBookPro11,2 (Mac-3CBD00234E554E41)

System shutdown begun: YES

Panic diags file available: YES (0x0)

Posted on Apr 1, 2020 2:34 AM

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Posted on Aug 31, 2020 10:39 AM

As a follow up, this was fixed for me with the August 12 10.15.6 supplemental update, as mentioned here https://www.macrumors.com/2020/08/12/apple-releases-macos-10-16-5-supplemental-update/. Note that this update is different from just '10.15.6'... it seems Apple doesn't like to increment minor numbers and is still calling this 10.15.6 supplement update.

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Panic - Watchdog Timeout: no checkins from watchdogd in 185 seconds

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