Computer restarts with panic, busy timeout, IOBlockStorageDriver

[.wojtek]

Every couple of days my MBP (M1 Pro) restarts - I see for a split second a pink screen and then it reboots. Afterwards I see following error:

panic(cpu 1 caller 0xfffffe0016d8dc24): busy timeout[0], (60s): 'IOBlockStorageDriver' (1,1) @IOService.cpp:5770
Debugger message: panic
Memory ID: 0x6
OS release type: User
OS version: 23C71
Kernel version: Darwin Kernel Version 23.2.0: Wed Nov 15 21:53:18 PST 2023; root:xnu-10002.61.3~2/RELEASE_ARM64_T6000
Fileset Kernelcache UUID: 89516519121B13EC9D63007F55C1F1FD
Kernel UUID: 3DE22D7D-A5F5-3B17-84BD-A58164C8B09B
Boot session UUID: EAE282C5-A03C-4C16-8D94-13667E3C3E5A
iBoot version: iBoot-10151.61.4
secure boot?: YES
roots installed: 0
Paniclog version: 14
KernelCache slide: 0x000000000e11c000
KernelCache base: 0xfffffe0015120000
Kernel slide: 0x000000000e124000
Kernel text base: 0xfffffe0015128000
Kernel text exec slide: 0x000000000f650000
Kernel text exec base: 0xfffffe0016654000
mach_absolute_time: 0x7a7ccbdd8f8
Epoch Time: sec usec
Boot : 0x65b1160c 0x000604d2
Sleep : 0x65b76601 0x000ac0f6
Wake : 0x65b76603 0x000c0db2
Calendar: 0x65b768bc 0x00041c14

Zone info:
Zone map: 0xfffffe10062d4000 - 0xfffffe30062d4000
. VM : 0xfffffe10062d4000 - 0xfffffe14d2fa0000
. RO : 0xfffffe14d2fa0000 - 0xfffffe166c938000
. GEN0 : 0xfffffe166c938000 - 0xfffffe1b39604000
. GEN1 : 0xfffffe1b39604000 - 0xfffffe20062d0000
. GEN2 : 0xfffffe20062d0000 - 0xfffffe24d2f9c000
. GEN3 : 0xfffffe24d2f9c000 - 0xfffffe299fc68000
. DATA : 0xfffffe299fc68000 - 0xfffffe30062d4000
Metadata: 0xfffffe4f356a8000 - 0xfffffe4f3d6a8000
Bitmaps : 0xfffffe4f3d6a8000 - 0xfffffe4f433cc000
Extra : 0 - 0

TPIDRx_ELy = {1: 0xfffffe24d157e020 0: 0x0000000000000001 0ro: 0x000000016b97f0e0 }
CORE 0 PVH locks held: None
CORE 1 PVH locks held: None
CORE 2 PVH locks held: None
CORE 3 PVH locks held: None
CORE 4 PVH locks held: None
CORE 5 PVH locks held: None
CORE 6 PVH locks held: None
CORE 7 PVH locks held: None
CORE 8 PVH locks held: None
CORE 9 PVH locks held: None
CORE 0: PC=0xfffffe0016dbd848, LR=0xfffffe0016dbd848, FP=0xfffffe4f702c3f20
CORE 1 is the one that panicked. Check the full backtrace for details.
CORE 2: PC=0x000000018ec5da88, LR=0x000000018ec5d490, FP=0x000000016d3fe7d0
CORE 3: PC=0x000000011650f3b4, LR=0x00000001165c016c, FP=0x000000016b969120
CORE 4: PC=0xfffffe00166cac24, LR=0xfffffe001669afc8, FP=0xfffffe4f703838d0
CORE 5: PC=0xfffffe00166e8220, LR=0xfffffe00166e8220, FP=0xfffffe4f6e0f3ef0
CORE 6: PC=0xfffffe001671e0e4, LR=0xfffffe001671e0c4, FP=0xfffffe4f6fa3b7b0
CORE 7: PC=0xfffffe00166e8220, LR=0xfffffe00166e8220, FP=0xfffffe4f6f78bef0
CORE 8: PC=0xfffffe00166e8220, LR=0xfffffe00166e8220, FP=0xfffffe4f70693ef0
CORE 9: PC=0xfffffe00166e8220, LR=0xfffffe00166e8220, FP=0xfffffe4f6e12fef0
Compressor Info: 2% of compressed pages limit (OK) and 2% of segments limit (OK) with 0 swapfiles and OK swap space
Panicked task 0xfffffe2005ad9048: 278 pages, 4 threads: pid 346: watchdogd
Panicked thread: 0xfffffe24d157e020, backtrace: 0xfffffe4f705033e0, tid: 3648052
lr: 0xfffffe00166ad58c fp: 0xfffffe4f70503470
lr: 0xfffffe00167f8108 fp: 0xfffffe4f705034e0
lr: 0xfffffe00167f6568 fp: 0xfffffe4f705035d0
lr: 0xfffffe001665bb68 fp: 0xfffffe4f705035e0
lr: 0xfffffe00166ace68 fp: 0xfffffe4f70503990
lr: 0xfffffe0016ec0548 fp: 0xfffffe4f705039b0
lr: 0xfffffe0016d8dc24 fp: 0xfffffe4f70503a90
lr: 0xfffffe00167c14d4 fp: 0xfffffe4f70503ac0
lr: 0xfffffe00166b3f28 fp: 0xfffffe4f70503b60
lr: 0xfffffe0016686df4 fp: 0xfffffe4f70503bc0
lr: 0xfffffe001669f418 fp: 0xfffffe4f70503c60
lr: 0xfffffe001669f884 fp: 0xfffffe4f70503d50
lr: 0xfffffe00167eb920 fp: 0xfffffe4f70503e20
lr: 0xfffffe00167f6870 fp: 0xfffffe4f70503f10
lr: 0xfffffe001665bb68 fp: 0xfffffe4f70503f20

last started kext at 234565656447: com.apple.filesystems.cd9660 1.4.4 (addr 0xfffffe0015b18c90, size 6310)
loaded kexts:
com.apple.filesystems.cd9660 1.4.4
com.apple.driver.AppleUSBODD 556
com.apple.filesystems.smbfs 5.1
com.apple.filesystems.autofs 3.0
com.apple.driver.usb.realtek8153patcher 5.0.0
com.apple.driver.AppleTopCaseHIDEventDriver 7400.26
com.apple.iokit.SCSITaskUserClient 492
com.apple.driver.AppleUSBMassStorageInterfaceNub 556
com.apple.driver.usb.AppleUSBHostBillboardDevice 1.0
com.apple.driver.AppleBiometricServices 1
com.apple.driver.CoreKDL 1
com.apple.driver.DiskImages.ReadWriteDiskImage 493.0.0
com.apple.driver.DiskImages.UDIFDiskImage 493.0.0
com.apple.driver.DiskImages.RAMBackingStore 493.0.0
com.apple.driver.DiskImages.FileBackingStore 493.0.0
com.apple.driver.BCMWLANFirmware4387.Hashstore 1
com.apple.driver.SEPHibernation 1
com.apple.driver.AppleUSBDeviceNCM 5.0.0
com.apple.driver.AppleFileSystemDriver 3.0.1
com.apple.nke.l2tp 1.9
com.apple.filesystems.tmpfs 1
com.apple.filesystems.nfs 1
com.apple.filesystems.lifs 1
com.apple.filesystems.apfs 2235.60.6
com.apple.IOTextEncryptionFamily 1.0.0
com.apple.filesystems.hfs.kext 650.0.2
com.apple.security.BootPolicy 1
com.apple.BootCache 40
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleThunderboltIP 4.0.3
com.apple.driver.AppleALSColorSensor 1.0.0d1
com.apple.driver.AppleAOPVoiceTrigger 300.7
com.apple.driver.ApplePMP 1
com.apple.driver.ApplePMPFirmware 1
com.apple.driver.AppleDPDisplayTCON 1
com.apple.AppleEmbeddedSimpleSPINORFlasher 1
com.apple.driver.AppleCS42L84Audio 700.46
com.apple.driver.AppleSN012776Amp 700.46
com.apple.driver.AppleSmartIO2 1
com.apple.driver.AppleSamsungSerial 1.0.0d1
com.apple.driver.AppleSerialShim 1
com.apple.driver.AppleT6000SOCTuner 1
com.apple.driver.AppleT6000CLPCv3 1
com.apple.driver.AppleInterruptControllerV2 1.0.0d1
com.apple.driver.AppleT6000PMGR 1
com.apple.driver.AppleS5L8960XNCO 1
com.apple.driver.AppleS8000DWI 1.0.0d1
com.apple.driver.AppleS8000AES 1
com.apple.driver.AppleEventLogHandler 1
com.apple.driver.AppleM68Buttons 1.0.0d1
com.apple.driver.AppleAVE2 703.54.1
com.apple.driver.AppleProResHW 326.11.0
com.apple.driver.AppleAVD 737.1
com.apple.driver.AppleJPEGDriver 6.2.2
com.apple.driver.AppleMobileDispT600X-DCP 140.0
com.apple.AGXG13X 276.58
com.apple.driver.AppleMCDP29XXUpdateSupport 1
com.apple.driver.usb.AppleSynopsysUSB40XHCI 1
com.apple.driver.AppleT8110DART 1
com.apple.driver.AppleSDXC 3.4.3
com.apple.driver.AppleBluetoothModule 1
com.apple.driver.AppleBCMWLANBusInterfacePCIe 1
com.apple.driver.AppleS5L8920XPWM 1.0.0d1
com.apple.driver.AudioDMAController-T600x 300.15
com.apple.driver.AppleT6000DART 1
com.apple.driver.AppleSPIMC 1
com.apple.driver.AppleS5L8940XI2C 1.0.0d2
com.apple.driver.AppleT6000 1
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.driver.usb.AppleUSBUserHCI 1
com.apple.iokit.IOKitRegistryCompatibility 1
com.apple.iokit.EndpointSecurity 1
com.apple.driver.AppleDiskImages2 273
com.apple.AppleSystemPolicy 2.0.0
com.apple.nke.applicationfirewall 404
com.apple.kec.InvalidateHmac 1
com.apple.kec.AppleEncryptedArchive 1
com.apple.iokit.IOSCSIMultimediaCommandsDevice 492
com.apple.iokit.IOBDStorageFamily 1.8
com.apple.iokit.IODVDStorageFamily 1.8
com.apple.iokit.IOCDStorageFamily 1.8
com.apple.driver.driverkit.serial 6.0.0
com.apple.driver.usb.cdc.acm 5.0.0
com.apple.driver.usb.serial 6.0.0
com.apple.driver.usb.cdc.ecm 5.0.0
com.apple.iokit.IOAVBFamily 1220.1
com.apple.driver.AppleHSBluetoothDriver 7400.26
com.apple.driver.IOBluetoothHIDDriver 9.0.0
com.apple.driver.AppleHIDKeyboard 7400.2
com.apple.driver.AppleActuatorDriver 7400.42
com.apple.driver.AppleMultitouchDriver 7400.42
com.apple.driver.usb.IOUSBHostHIDDevice 1.2
com.apple.driver.usb.cdc 5.0.0
com.apple.driver.AppleUSBAudio 610.3
com.apple.iokit.IOAudioFamily 500.4
com.apple.vecLib.kext 1.2.0
com.apple.driver.AppleMesaSEPDriver 100.99
com.apple.iokit.IOBiometricFamily 1
com.apple.driver.DiskImages.KernelBacked 493.0.0
com.apple.driver.AppleXsanScheme 3
com.apple.driver.AppleConvergedIPCOLYBTControl 1
com.apple.driver.AppleConvergedPCI 1
com.apple.driver.AppleBluetoothDebug 1
com.apple.driver.AppleTrustedAccessory 1
com.apple.iokit.AppleSEPGenericTransfer 1
com.apple.driver.AppleSEPHDCPManager 1.0.1
com.apple.driver.usb.networking 5.0.0
com.apple.nke.ppp 1.9
com.apple.driver.AppleBSDKextStarter 3
com.apple.kext.triggers 1.0
com.apple.filesystems.hfs.encodings.kext 1
com.apple.driver.AppleSyntheticGameController 11.2.3
com.apple.driver.AppleUVDMDriver 1.0.0
com.apple.driver.AppleUVDM 1.0.0
com.apple.driver.AppleBTM 1.0.1
com.apple.driver.IOHIDPowerSource 1
com.apple.driver.AppleCallbackPowerSource 1
com.apple.driver.AppleThunderboltUSBDownAdapter 1.0.4
com.apple.driver.AppleThunderboltPCIDownAdapter 4.1.1
com.apple.driver.AppleThunderboltDPInAdapter 8.5.1
com.apple.driver.AppleThunderboltDPAdapterFamily 8.5.1
com.apple.driver.AppleAOPAudio 300.14
com.apple.driver.AppleDiagnosticDataAccessReadOnly 1.0.0
com.apple.driver.AppleCSEmbeddedAudio 700.46
com.apple.driver.AppleHIDTransportSPI 7410.1
com.apple.driver.AppleHIDTransport 7410.1
com.apple.driver.AppleInputDeviceSupport 7410.1
com.apple.driver.AppleDCPDPTXProxy 1.0.0
com.apple.driver.DCPDPFamilyProxy 1
com.apple.plugin.IOgPTPPlugin 1200.91
com.apple.driver.AppleEmbeddedAudio 700.46
com.apple.iokit.AppleARMIISAudio 300.11
com.apple.driver.AppleSART 1
com.apple.driver.AppleARMWatchdogTimer 1
com.apple.iokit.IONVMeFamily 2.1.0
com.apple.driver.AppleNANDConfigAccess 1.0.0
com.apple.driver.AppleSPU 1
com.apple.driver.ApplePassthroughPPM 3.0
com.apple.AGXFirmwareKextG13XRTBuddy 276.58
com.apple.AGXFirmwareKextRTBuddy64 276.58
com.apple.driver.AppleStockholmControl 1.0.0
com.apple.driver.AppleSPMIPMU 1.0.1
com.apple.driver.AppleDialogPMU 1.0.1
com.apple.driver.ApplePMGR 1
com.apple.driver.AppleDisplayCrossbar 1.0.0
com.apple.driver.DCPAVFamilyProxy 1
com.apple.driver.AppleSPMI 1.0.1
com.apple.iokit.IOMobileGraphicsFamily-DCP 343.0.0
com.apple.iokit.IOMobileGraphicsFamily 343.0.0
com.apple.driver.AppleM2ScalerCSCDriver 265.0.0
com.apple.iokit.IOGPUFamily 93.10.1
com.apple.driver.AppleT6000TypeCPhy 1
com.apple.driver.AppleT8103TypeCPhy 1
com.apple.driver.AppleDCP 1
com.apple.driver.AppleFirmwareKit 1
com.apple.driver.AppleHPM 3.4.4
com.apple.iokit.IODisplayPortFamily 1.0.0
com.apple.driver.AppleUSBXDCIARM 1.0
com.apple.driver.AppleUSBXDCI 1.0
com.apple.iokit.IOUSBDeviceFamily 2.0.0
com.apple.driver.usb.AppleSynopsysUSBXHCI 1
com.apple.driver.usb.AppleUSBXHCI 1.2
com.apple.driver.AppleTypeCPhy 1
com.apple.driver.AppleEmbeddedUSBHost 1
com.apple.driver.usb.AppleUSBHub 1.2
com.apple.driver.usb.AppleUSBHostCompositeDevice 1.2
com.apple.driver.AppleThunderboltNHI 7.2.81
com.apple.driver.AppleT6000PCIeC 1
com.apple.iokit.IOThunderboltFamily 9.3.3
com.apple.iokit.IOPortFamily 1.0
com.apple.driver.ApplePIODMA 1
com.apple.driver.AppleT600xPCIe 1
com.apple.driver.AppleMultiFunctionManager 1
com.apple.driver.AppleBluetoothDebugService 1
com.apple.driver.AppleBCMWLANCore 1.0.0
com.apple.iokit.IO80211Family 1200.13.0
com.apple.driver.IOImageLoader 1.0.0
com.apple.driver.AppleOLYHAL 1
com.apple.driver.corecapture 1.0.4
com.apple.driver.AppleEmbeddedPCIE 1
com.apple.driver.AppleMCA2-T600x 800.11
com.apple.driver.AppleEmbeddedAudioLibs 300.1
com.apple.driver.AppleFirmwareUpdateKext 1
com.apple.driver.AppleH13CameraInterface 8.205.0
com.apple.driver.AppleGPIOICController 1.0.2
com.apple.driver.AppleFireStormErrorHandler 1
com.apple.driver.AppleMobileApNonce 1
com.apple.driver.usb.AppleUSBHostPacketFilter 1.0
com.apple.iokit.IOTimeSyncFamily 1200.91
com.apple.driver.DiskImages 493.0.0
com.apple.iokit.IOGraphicsFamily 598
com.apple.iokit.IOBluetoothFamily 9.0.0
com.apple.driver.AppleSSE 1.0
com.apple.driver.AppleSEPKeyStore 2
com.apple.driver.AppleUSBTDM 556
com.apple.iokit.IOUSBMassStorageDriver 243
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOSCSIBlockCommandsDevice 492
com.apple.iokit.IOSCSIArchitectureModelFamily 492
com.apple.driver.AppleRSMChannel 1
com.apple.iokit.IORSMFamily 1
com.apple.driver.AppleLockdownMode 1
com.apple.driver.AppleIPAppender 1.0
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleEffaceableStorage 1.0
com.apple.driver.AppleCredentialManager 1.0
com.apple.driver.KernelRelayHost 1
com.apple.iokit.IOUSBHostFamily 1.2
com.apple.driver.AppleUSBHostMergeProperties 1.2
com.apple.driver.usb.AppleUSBCommon 1.0
com.apple.driver.AppleSMC 3.1.9
com.apple.driver.RTBuddy 1.0.0
com.apple.driver.AppleEmbeddedTempSensor 1.0.0
com.apple.driver.AppleARMPMU 1.0
com.apple.iokit.IOAccessoryManager 1.0.0
com.apple.driver.AppleOnboardSerial 1.0
com.apple.iokit.IOSkywalkFamily 1.0
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IONetworkingFamily 3.4
com.apple.iokit.IOSerialFamily 11
com.apple.driver.AppleSEPManager 1.0.1
com.apple.driver.AppleA7IOP 1.0.2
com.apple.driver.IOSlaveProcessor 1
com.apple.driver.AppleBiometricSensor 2
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.driver.AppleANELoadBalancer 7.202.3
com.apple.driver.AppleH11ANEInterface 7.202.0
com.apple.driver.IODARTFamily 1
com.apple.AUC 1.0
com.apple.iokit.IOSurface 352.0.3
com.apple.iokit.IOAVFamily 1.0.0
com.apple.iokit.IOHDCPFamily 1.0.0
com.apple.iokit.IOCECFamily 1
com.apple.iokit.IOAudio2Family 1.0
com.apple.driver.AppleIISController 300.1
com.apple.driver.AppleAudioClockLibs 300.1
com.apple.driver.FairPlayIOKit 71.3.0
com.apple.driver.AppleARMPlatform 1.0.2
com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0
com.apple.iokit.IOReportFamily 47
com.apple.security.quarantine 4
com.apple.security.sandbox 300.0
com.apple.iokit.IOStorageFamily 2.1
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.AppleMobileFileIntegrity 1.0.5
com.apple.iokit.CoreAnalyticsFamily 1
com.apple.security.AppleImage4 5.0.0
com.apple.kext.CoreTrust 1
com.apple.iokit.IOCryptoAcceleratorFamily 1.0.1
com.apple.kec.pthread 1
com.apple.kec.Libm 1
com.apple.kec.Compression 1.0
com.apple.kec.corecrypto 14.0



** Stackshot Succeeded ** Bytes Traced 751489 (Uncompressed 2005232) **

Anyone experiences anything similar? Any hints how to troubleshoot it? Block Storage device would suggest failing SSD?

 

[mr_roboto]

Anyone experiences anything similar? Any hints how to troubleshoot it? Block Storage device would suggest failing SSD?

Block Storage Device is a generic layer for all block storage devices - SSDs, optical disk drives, USB thumb drives, etc.

I noticed this:

last started kext at 234565656447: com.apple.filesystems.cd9660 1.4.4 (addr 0xfffffe0015b18c90, size 6310)
loaded kexts:
com.apple.filesystems.cd9660 1.4.4
com.apple.driver.AppleUSBODD 556

ISO9660 is a common CD/DVD filesystem and AppleUSBODD is the driver for USB optical disk drives. Since these KEXTs are loaded, I'm guessing that you plugged in a USB CD or DVD drive and used it to mount a disk? And since the ISO9660 filesystem was the last KEXT loaded, that's a hint that it could have been this activity which triggered the panic.

Other than that, I'd caution against leaping to the conclusion that kernel panics indicate hardware failure. They're triggered any time an unexpected and unrecoverable condition is noticed, and these can happen due to kernel or KEXT bugs just as easily as hardware failures.

 

[.wojtek]

Hmm.. indeed I used a couple of times (ancient) pluggable apple external DVD drive (still on USB-A, via USB-C adapter). But I plugged it last time last wednesday and mbp restarted yesterday (and I think on saturday) so there was a time between restarts when the drive was not used. On the other hand, I always used "eject" functionality before unplugging it.

I also have an external USB hub (it serves as a power source, eth-network, audio output and connection to external display to have only single cable connected to the MBP). Since a while (months already) I'm getting this notification almost constantly when sleeping/waking up the computer:

(inactive USB accessories, disconnect the accessory that consumes the most [energy?] in order to reactivate the device)

Could it be related somehow?

 

[mr_roboto]

Hmm.. indeed I used a couple of times (ancient) pluggable apple external DVD drive (still on USB-A, via USB-C adapter). But I plugged it last time last wednesday and mbp restarted yesterday (and I think on saturday) so there was a time between restarts when the drive was not used. On the other hand, I always used "eject" functionality before unplugging it.

I also have an external USB hub (it serves as a power source, eth-network, audio output and connection to external display to have only single cable connected to the MBP). Since a while (months already) I'm getting this notification almost constantly when sleeping/waking up the computer:

View attachment 2342540
(inactive USB accessories, disconnect the accessory that consumes the most [energy?] in order to reactivate the device)

Could it be related somehow?

Probably not the DVD drive if the panic happened several days after you unplugged it.

This notification you're getting is suspicious, though. Sounds like you're running up against the power output limits of the USB hub and it's having to shut one or more devices down. If it's not doing that cleanly (i.e. devices disappear off USB randomly, or only partially work), I could see that creating unanticipated errors inside one or more kernel drivers, leading to a panic.

 

[.wojtek]

Probably not the DVD drive if the panic happened several days after you unplugged it.

This notification you're getting is suspicious, though. Sounds like you're running up against the power output limits of the USB hub and it's having to shut one or more devices down. If it's not doing that cleanly (i.e. devices disappear off USB randomly, or only partially work), I could see that creating unanticipated errors inside one or more kernel drivers, leading to a panic.

The thing is - I don't use many devices... almost none:
- MBP is plugged to the HUB
- HUB is plugged to MBP power brick.
- HUB has also plugged: monitor (HDMI), external audio (jack), wired network (eth), brother printer (usb) and USB hub from monitor (I just unplugged it as I don't use it).

That's all devices I have/use. And none of them seem to be even remotely relevant to "io device" that seemed to trigger the panic)

 

[mr_roboto]

The thing is - I don't use many devices... almost none:
- MBP is plugged to the HUB
- HUB is plugged to MBP power brick.
- HUB has also plugged: monitor (HDMI), external audio (jack), wired network (eth), brother printer (usb) and USB hub from monitor (I just unplugged it as I don't use it).

That's all devices I have/use. And none of them seem to be even remotely relevant to "io device" that seemed to trigger the panic)

Hmm. The only device plugged into the hub which should draw power is the MBP itself, which implies the hub's complaining about the MBP using too much power.

What's the hub's manufacturer and model number?

 

[.wojtek]

What's the hub's manufacturer and model number?

It's Baseus CAHUB-CT0G.

However, an observation - after unplugging monitor's USB hub from Baseus I don't see the error about power drain any more (it looks like Dell S2721DGFA usb hub is not active and is draining power from Baseus?)

I haven't used MBP plugged to the hub/power source extensively recently and so far it hasn't restarted. My memory is not the best, but I think the restart usually occurred while connected to the hub and external monitor so maybe the monitor's hub was a culprit for some reason?

 

[mr_roboto]

It's Baseus CAHUB-CT0G.

However, an observation - after unplugging monitor's USB hub from Baseus I don't see the error about power drain any more (it looks like Dell S2721DGFA usb hub is not active and is draining power from Baseus?)

I haven't used MBP plugged to the hub/power source extensively recently and so far it hasn't restarted. My memory is not the best, but I think the restart usually occurred while connected to the hub and external monitor so maybe the monitor's hub was a culprit for some reason?

That's odd - it's hard to imagine why the Dell hub would draw power if connected to the Baseus, because you'd think Dell would just power the hub and downstream USB devices from the Dell monitor's power supply. But if disconnecting it makes those power drain errors go away, it's worth trying to run without the Dell hub connected and see if the reboots go away.

 

[.wojtek]

But if disconnecting it makes those power drain errors go away, it's worth trying to run without the Dell hub connected and see if the reboots go away.

That's what I'm doing and so far no power drain errors (those were almost constant when waking up the MBP) and so far no odd restarts but it's been only couple of days.

Thanks for the help!

 

[mr_roboto]

That's what I'm doing and so far no power drain errors (those were almost constant when waking up the MBP) and so far no odd restarts but it's been only couple of days.

Thanks for the help!

I hope it works out - these infrequent problems can be terrible to diagnose because whatever you try, you don't know right away whether what you did worked! Good luck!