We have an ssd external drive that is the boot drive connected to a late 2013 iMac. Both the drive and the iMac are Catalina.
The restarts happen sporadically, usually at least once a day.
The report to Apple follows. No new software has been added since before this started, so a kernel panic related to some software may or may not be what's causing the constant restarts.
Can anyone interpret this report?
Thank you. I won’t be able to do anything about it til next week, going away. But I’d love to get some responses soon.
Your Computer was restarted because of a problem.
panic(cpu 2 caller 0xffffff7fa12e9a8d): watchdog timeout: no checkins from watchdogd in 98 seconds (4434 total checkins since monitoring last enabled)
Backtrace (CPU 2), Frame : Return Address
0xffffff8122b8bc40 : 0xffffff802071b54d
0xffffff8122b8bc90 : 0xffffff8020855d85
0xffffff8122b8bcd0 : 0xffffff802084790e
0xffffff8122b8bd20 : 0xffffff80206c1a40
0xffffff8122b8bd40 : 0xffffff802071ac17
0xffffff8122b8be40 : 0xffffff802071b007
0xffffff8122b8be90 : 0xffffff8020ec0428
0xffffff8122b8bf00 : 0xffffff7fa12e9a8d
0xffffff8122b8bf10 : 0xffffff7fa12e947b
0xffffff8122b8bf50 : 0xffffff7fa12fed9c
0xffffff8122b8bfa0 : 0xffffff80206c113e
Kernel Extensions in backtrace:
com.apple.driver.watchdog(1.0)[74DD570F-9087-3BE9-BE35-CAD2065E6270]@0xffffff7fa12e8000->0xffffff7fa12f0fff
com.apple.driver.AppleSMC(3.1.9)[490BFB1B-317B-3E21-A8FB-049EB7C5FFAC]@0xffffff7fa12f1000->0xffffff7fa130ffff
dependency: com.apple.iokit.IOACPIFamily(1.4)[EEA1F8DE-7566-3725-A90B-FF30414CAC1B]@0xffffff7fa12df000
dependency: com.apple.driver.watchdog(1)[74DD570F-9087-3BE9-BE35-CAD2065E6270]@0xffffff7fa12e8000
dependency: com.apple.iokit.IOPCIFamily(2.9)[26F2BEB0-18DA-3B16-82FE-86A7E6EA9677]@0xffffff7fa1131000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
19H2026
Kernel version:
Darwin Kernel Version 19.6.0: Tue Jun 21 21:18:39 PDT 2022; root:xnu-6153.141.66~1/RELEASE_X86_64
Kernel UUID: D5630E55-7695-313B-B468-6347805B0B6F
Kernel slide: 0x0000000020400000
Kernel text base: 0xffffff8020600000
__HIB text base: 0xffffff8020500000
System model name: iMac13,1 (Mac-00BE6ED71E35EB86)
System shutdown begun: NO
Panic diags file available: NO (0xe00002bc)
System uptime in nanoseconds: 44442105156260
last loaded kext at 114678315403: >!A!BHIDKeyboard 209 (addr 0xffffff7fa53ec000, size 12288)
last unloaded kext at 380372033216: >usb.IOUSBHostHIDDevice 1.2 (addr 0xffffff7fa1a58000, size 49152)
loaded kexts:
>!A!BMultitouch 97
>AudioAUUC 1.70
@fileutil 20.036.15
@filesystems.autofs 3.0
@AGDCPluginDisplayMetrics 5.2.7
>!AHV 1
|IOUserEthernet 1.0.1
|IO!BSerialManager 7.0.6f8
>!APlatformEnabler 2.7.0d0
>AGPM 111.4.4
>X86PlatformShim 1.0.0
>pmtelemetry 1
>!AUpstreamUserClient 3.6.8
>!AMikeyHIDDriver 131
@Dont_Steal_Mac_OS_X 7.0.0
@GeForce 14.0.0
>!A!IHD4000Graphics 14.0.7
>!AHDA 283.15
>eficheck 1
>!AMikeyDriver 283.15
>!AThunderboltIP 3.1.4
>!ASMCLMU 212
>!ALPC 3.1
>AirPort.Brcm4360 1400.1.1
>!A!ISlowAdaptiveClocking 4.0.0
>!A!IFramebufferCapri 14.0.7
>!AMCCSControl 1.14
>!AVirtIO 1.0
@filesystems.hfs.kext 522.100.6
@!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1
@BootCache 40
@!AFSCompression.!AFSCompressionTypeZlib 1.0.0
@filesystems.apfs 1412.141.3
@private.KextAudit 1.0
>!ASDXC 1.7.7
|!ABCM5701Ethernet 10.3.5
>!AAHCIPort 341.140.1
>!AACPIButtons 6.1
>!ARTC 2.0
>!AHPET 1.8
>!ASMBIOS 2.1
>!AACPIEC 6.1
>!AAPIC 1.7
>!A!ICPUPowerManagementClient 222.0.0
$!AImage4 1
@nke.applicationfirewall 303
$TMSafetyNet 8
@!ASystemPolicy 2.0.0
>!A!ICPUPowerManagement 222.0.0
|EndpointSecurity 1
>!A!BHIDKeyboard 209
>!AHIDKeyboard 209
>IO!BHIDDriver 7.0.6f8
>!AMultitouchDriver 3440.1.1
>!AInputDeviceSupport 3440.8
@kext.triggers 1.0
|IOAVB!F 850.1
@nvidia.driver.NVDAGK100Hal 14.0.0
@nvidia.driver.NVDAResman 14.0.0
>DspFuncLib 283.15
@kext.OSvKernDSPLib 529
@!AGPUWrangler 5.2.7
|IONDRVSupport 576.2
>X86PlatformPlugin 1.0.0
>!AHDA!C 283.15
|IOHDA!F 283.15
>IOPlatformPlugin!F 6.0.0d8
>!ASMBusPCI 1.0.14d1
|IO80211!F 1200.12.2b1
>corecapture 1.0.4
|IOSlowAdaptiveClocking!F 1.0.0
|IOAccelerator!F2 438.7.4
@!AGraphicsDeviceControl 5.2.7
>!AThunderboltEDMSink 4.2.3
>!ASMBus!C 1.0.18d1
|IOGraphics!F 576.2
@plugin.IOgPTPPlugin 840.3
|IOSkywalk!F 1
|Broadcom!BHost!CUSBTransport 7.0.6f8
|IO!BHost!CUSBTransport 7.0.6f8
|IO!BHost!CTransport 7.0.6f8
|IO!B!F 7.0.6f8
|IO!BPacketLogger 7.0.6f8
>usb.networking 5.0.0
>usb.!UHostCompositeDevice 1.2
>usb.!UHub 1.2
|IOAudio!F 300.2
@vecLib.kext 1.2.0
|IOSerial!F 11
|IOSurface 269.11
@filesystems.hfs.encodings.kext 1
>!AThunderboltDPOutAdapter 6.2.6
>!AThunderboltDPInAdapter 6.2.6
>!AThunderboltDPAdapter!F 6.2.6
>!AThunderboltPCIDownAdapter 2.5.4
|IOAHCIBlock!S 316.100.5
>!AThunderboltNHI 5.8.6
|IOThunderbolt!F 7.6.1
|IOEthernetAVB!C 1.1.0
>mDNSOffloadUserClient 1.0.1b8
|IOAHCI!F 290.0.1
>usb.!UXHCIPCI 1.2
>usb.!UXHCI 1.2
>usb.!UEHCIPCI 1.2
>usb.!UEHCI 1.2
|IOUSB!F 900.4.2
>!AEFINVRAM 2.1
>!AEFIRuntime 2.1
|IOSMBus!F 1.1
|IOHID!F 2.0.0
$quarantine 4
$sandbox 300.0
@Kext.!AMatch 1.0.0d1
>DiskImages 493.0.0
>!AFDEKeyStore 28.30
>!AEffaceable!S 1.0
>!ASSE 1.0
>!AKeyStore 2
>!UTDM 489.120.1
|IOSCSIBlockCommandsDevice 422.120.3
>!ACredentialManager 1.0
>KernelRelayHost 1
>!ASEPManager 1.0.1
>IOSlaveProcessor 1
|IOUSBMass!SDriver 157.140.1
|IOSCSIArchitectureModel!F 422.120.3
|IO!S!F 2.1
|IOUSBHost!F 1.2
>!UHostMergeProperties 1.2
>usb.!UCommon 1.0
>!ABusPower!C 1.0
|CoreAnalytics!F 1
>!AMobileFileIntegrity 1.0.5
@kext.CoreTrust 1
|IOTimeSync!F 840.3
|IONetworking!F 3.4
|IOReport!F 47
>!AACPIPlatform 6.1
>!ASMC 3.1.9
>watchdog 1
|IOPCI!F 2.9
|IOACPI!F 1.4
@kec.pthread 1
@kec.corecrypto 1.0
@kec.Libm 1
The restarts happen sporadically, usually at least once a day.
The report to Apple follows. No new software has been added since before this started, so a kernel panic related to some software may or may not be what's causing the constant restarts.
Can anyone interpret this report?
Thank you. I won’t be able to do anything about it til next week, going away. But I’d love to get some responses soon.
Your Computer was restarted because of a problem.
panic(cpu 2 caller 0xffffff7fa12e9a8d): watchdog timeout: no checkins from watchdogd in 98 seconds (4434 total checkins since monitoring last enabled)
Backtrace (CPU 2), Frame : Return Address
0xffffff8122b8bc40 : 0xffffff802071b54d
0xffffff8122b8bc90 : 0xffffff8020855d85
0xffffff8122b8bcd0 : 0xffffff802084790e
0xffffff8122b8bd20 : 0xffffff80206c1a40
0xffffff8122b8bd40 : 0xffffff802071ac17
0xffffff8122b8be40 : 0xffffff802071b007
0xffffff8122b8be90 : 0xffffff8020ec0428
0xffffff8122b8bf00 : 0xffffff7fa12e9a8d
0xffffff8122b8bf10 : 0xffffff7fa12e947b
0xffffff8122b8bf50 : 0xffffff7fa12fed9c
0xffffff8122b8bfa0 : 0xffffff80206c113e
Kernel Extensions in backtrace:
com.apple.driver.watchdog(1.0)[74DD570F-9087-3BE9-BE35-CAD2065E6270]@0xffffff7fa12e8000->0xffffff7fa12f0fff
com.apple.driver.AppleSMC(3.1.9)[490BFB1B-317B-3E21-A8FB-049EB7C5FFAC]@0xffffff7fa12f1000->0xffffff7fa130ffff
dependency: com.apple.iokit.IOACPIFamily(1.4)[EEA1F8DE-7566-3725-A90B-FF30414CAC1B]@0xffffff7fa12df000
dependency: com.apple.driver.watchdog(1)[74DD570F-9087-3BE9-BE35-CAD2065E6270]@0xffffff7fa12e8000
dependency: com.apple.iokit.IOPCIFamily(2.9)[26F2BEB0-18DA-3B16-82FE-86A7E6EA9677]@0xffffff7fa1131000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
19H2026
Kernel version:
Darwin Kernel Version 19.6.0: Tue Jun 21 21:18:39 PDT 2022; root:xnu-6153.141.66~1/RELEASE_X86_64
Kernel UUID: D5630E55-7695-313B-B468-6347805B0B6F
Kernel slide: 0x0000000020400000
Kernel text base: 0xffffff8020600000
__HIB text base: 0xffffff8020500000
System model name: iMac13,1 (Mac-00BE6ED71E35EB86)
System shutdown begun: NO
Panic diags file available: NO (0xe00002bc)
System uptime in nanoseconds: 44442105156260
last loaded kext at 114678315403: >!A!BHIDKeyboard 209 (addr 0xffffff7fa53ec000, size 12288)
last unloaded kext at 380372033216: >usb.IOUSBHostHIDDevice 1.2 (addr 0xffffff7fa1a58000, size 49152)
loaded kexts:
>!A!BMultitouch 97
>AudioAUUC 1.70
@fileutil 20.036.15
@filesystems.autofs 3.0
@AGDCPluginDisplayMetrics 5.2.7
>!AHV 1
|IOUserEthernet 1.0.1
|IO!BSerialManager 7.0.6f8
>!APlatformEnabler 2.7.0d0
>AGPM 111.4.4
>X86PlatformShim 1.0.0
>pmtelemetry 1
>!AUpstreamUserClient 3.6.8
>!AMikeyHIDDriver 131
@Dont_Steal_Mac_OS_X 7.0.0
@GeForce 14.0.0
>!A!IHD4000Graphics 14.0.7
>!AHDA 283.15
>eficheck 1
>!AMikeyDriver 283.15
>!AThunderboltIP 3.1.4
>!ASMCLMU 212
>!ALPC 3.1
>AirPort.Brcm4360 1400.1.1
>!A!ISlowAdaptiveClocking 4.0.0
>!A!IFramebufferCapri 14.0.7
>!AMCCSControl 1.14
>!AVirtIO 1.0
@filesystems.hfs.kext 522.100.6
@!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1
@BootCache 40
@!AFSCompression.!AFSCompressionTypeZlib 1.0.0
@filesystems.apfs 1412.141.3
@private.KextAudit 1.0
>!ASDXC 1.7.7
|!ABCM5701Ethernet 10.3.5
>!AAHCIPort 341.140.1
>!AACPIButtons 6.1
>!ARTC 2.0
>!AHPET 1.8
>!ASMBIOS 2.1
>!AACPIEC 6.1
>!AAPIC 1.7
>!A!ICPUPowerManagementClient 222.0.0
$!AImage4 1
@nke.applicationfirewall 303
$TMSafetyNet 8
@!ASystemPolicy 2.0.0
>!A!ICPUPowerManagement 222.0.0
|EndpointSecurity 1
>!A!BHIDKeyboard 209
>!AHIDKeyboard 209
>IO!BHIDDriver 7.0.6f8
>!AMultitouchDriver 3440.1.1
>!AInputDeviceSupport 3440.8
@kext.triggers 1.0
|IOAVB!F 850.1
@nvidia.driver.NVDAGK100Hal 14.0.0
@nvidia.driver.NVDAResman 14.0.0
>DspFuncLib 283.15
@kext.OSvKernDSPLib 529
@!AGPUWrangler 5.2.7
|IONDRVSupport 576.2
>X86PlatformPlugin 1.0.0
>!AHDA!C 283.15
|IOHDA!F 283.15
>IOPlatformPlugin!F 6.0.0d8
>!ASMBusPCI 1.0.14d1
|IO80211!F 1200.12.2b1
>corecapture 1.0.4
|IOSlowAdaptiveClocking!F 1.0.0
|IOAccelerator!F2 438.7.4
@!AGraphicsDeviceControl 5.2.7
>!AThunderboltEDMSink 4.2.3
>!ASMBus!C 1.0.18d1
|IOGraphics!F 576.2
@plugin.IOgPTPPlugin 840.3
|IOSkywalk!F 1
|Broadcom!BHost!CUSBTransport 7.0.6f8
|IO!BHost!CUSBTransport 7.0.6f8
|IO!BHost!CTransport 7.0.6f8
|IO!B!F 7.0.6f8
|IO!BPacketLogger 7.0.6f8
>usb.networking 5.0.0
>usb.!UHostCompositeDevice 1.2
>usb.!UHub 1.2
|IOAudio!F 300.2
@vecLib.kext 1.2.0
|IOSerial!F 11
|IOSurface 269.11
@filesystems.hfs.encodings.kext 1
>!AThunderboltDPOutAdapter 6.2.6
>!AThunderboltDPInAdapter 6.2.6
>!AThunderboltDPAdapter!F 6.2.6
>!AThunderboltPCIDownAdapter 2.5.4
|IOAHCIBlock!S 316.100.5
>!AThunderboltNHI 5.8.6
|IOThunderbolt!F 7.6.1
|IOEthernetAVB!C 1.1.0
>mDNSOffloadUserClient 1.0.1b8
|IOAHCI!F 290.0.1
>usb.!UXHCIPCI 1.2
>usb.!UXHCI 1.2
>usb.!UEHCIPCI 1.2
>usb.!UEHCI 1.2
|IOUSB!F 900.4.2
>!AEFINVRAM 2.1
>!AEFIRuntime 2.1
|IOSMBus!F 1.1
|IOHID!F 2.0.0
$quarantine 4
$sandbox 300.0
@Kext.!AMatch 1.0.0d1
>DiskImages 493.0.0
>!AFDEKeyStore 28.30
>!AEffaceable!S 1.0
>!ASSE 1.0
>!AKeyStore 2
>!UTDM 489.120.1
|IOSCSIBlockCommandsDevice 422.120.3
>!ACredentialManager 1.0
>KernelRelayHost 1
>!ASEPManager 1.0.1
>IOSlaveProcessor 1
|IOUSBMass!SDriver 157.140.1
|IOSCSIArchitectureModel!F 422.120.3
|IO!S!F 2.1
|IOUSBHost!F 1.2
>!UHostMergeProperties 1.2
>usb.!UCommon 1.0
>!ABusPower!C 1.0
|CoreAnalytics!F 1
>!AMobileFileIntegrity 1.0.5
@kext.CoreTrust 1
|IOTimeSync!F 840.3
|IONetworking!F 3.4
|IOReport!F 47
>!AACPIPlatform 6.1
>!ASMC 3.1.9
>watchdog 1
|IOPCI!F 2.9
|IOACPI!F 1.4
@kec.pthread 1
@kec.corecrypto 1.0
@kec.Libm 1