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Morac

macrumors 68020
Original poster
Dec 30, 2009
2,473
789
I upgraded my M4 Mac Studio from MacOS 26.0.1 to 26.1 on Monday. Since then I've had 2 kernel panics while the Mac was sleeping: once on Wednesday and again today. Both times I'll wake the Mac to find it has rebooted and is sitting at the login page. When I login I get an error reporting screen with the following dump.

From searching I've found that a panic appears to be related to HDMI. I do have 2 monitors attached to my M4 Mac Studio: one directly via HDMI and the other via a USB->HDMI adapter. Both have been hooked up since I got it in April. I never had any panics until 26.1 so there seems to be a bug in that version.

Any ideas on how to resolve this or do I just need to wait to see if MacOS 26.2 fixes it?

panic(cpu 6 caller 0xfffffe0051b5f260): "AppleT8122DPTXPort(lpdptx-phy0)::deactivateTimeoutOccurred(0x1000004f3): deactivate() incomplete 10 seconds after displayRelease()! (check DCPEXT)\n" @AppleT8112DPTXPort.cpp:514
Debugger message: panic
Memory ID: 0x6
OS release type: User
OS version: 25B78
Kernel version: Darwin Kernel Version 25.1.0: Mon Oct 20 19:34:05 PDT 2025; root:xnu-12377.41.6~2/RELEASE_ARM64_T6041
Fileset Kernelcache UUID: 517ECCE5A787D47385828F26A92C0849
Kernel UUID: CBDFB1EB-8CB9-3A4C-AA3C-E495597B121F
Boot session UUID: E13C2949-035E-4F90-B600-6EB8D23966C1
iBoot version: iBoot-13822.41.1
iBoot Stage 2 version: iBoot-13822.41.1
secure boot?: YES
roots installed: 0
Paniclog version: 15
Debug Header address: 0xfffffe002f1d1000
Debug Header entry count: 3
TXM load address: 0xfffffe003f138000
TXM UUID: E91A013B-3580-367B-A827-6BB5341FD013
Debug Header kernelcache load address: 0xfffffe004f138000
Debug Header kernelcache UUID: 517ECCE5-A787-D473-8582-8F26A92C0849
SPTM load address: 0xfffffe002f138000
SPTM UUID: 445124AA-CB68-3859-9E1E-D35C90F52AD3
KernelCache slide: 0x0000000048134000
KernelCache base: 0xfffffe004f138000
Kernel slide: 0x000000004813c000
Kernel text base: 0xfffffe004f140000
Kernel text exec slide: 0x0000000049950000
Kernel text exec base: 0xfffffe0050954000
mach_absolute_time: 0x5ce1f64d2a9
Epoch Time: sec usec
Boot : 0x690bed96 0x000ab5da
Sleep : 0x69101dd7 0x000dec7e
Wake : 0x69102181 0x000260b7
Calendar: 0x69102d85 0x00032dd3

Zone info:
Zone map: 0xfffffe1236000000 - 0xfffffe3836000000
. VM : 0xfffffe1236000000 - 0xfffffe1802000000
. RO : 0xfffffe1802000000 - 0xfffffe1a9c000000
. GEN0 : 0xfffffe1a9c000000 - 0xfffffe2068000000
. GEN1 : 0xfffffe2068000000 - 0xfffffe2634000000
. GEN2 : 0xfffffe2634000000 - 0xfffffe2c00000000
. GEN3 : 0xfffffe2c00000000 - 0xfffffe31cc000000
. DATA : 0xfffffe31cc000000 - 0xfffffe3836000000
Metadata: 0xfffffe5362010000 - 0xfffffe536b810000
Bitmaps : 0xfffffe536b810000 - 0xfffffe537b810000
Extra : 0 - 0

CORE 0 [EACC0] recently retired instr at 0x0000000000000000
CORE 1 [EACC0] recently retired instr at 0x0000000000000000
CORE 2 [EACC0] recently retired instr at 0x0000000000000000
CORE 3 [EACC0] recently retired instr at 0x0000000000000000
CORE 4 [PACC1] recently retired instr at 0x0000000000000000
CORE 5 [PACC1] recently retired instr at 0x0000000000000000
CORE 6 [PACC1] recently retired instr at 0x0000000000000000
CORE 7 [PACC1] recently retired instr at 0x0000000000000000
CORE 8 [PACC1] recently retired instr at 0x0000000000000000
CORE 9 [PACC1] recently retired instr at 0x0000000000000000
CORE 10 [PACC2] is offline, skipping
CORE 11 [PACC2] is offline, skipping
CORE 12 [PACC2] is offline, skipping
CORE 13 [PACC2] is offline, skipping
CORE 14 [PACC2] is offline, skipping
CORE 15 [PACC2] is offline, skipping
TPIDRx_ELy = {1: 0xfffffe2aff86b7d8 0: 0x0000000000001006 0ro: 0x0000000000000000 }
CORE 0: PC=0xfffffe0050b2095c, LR=0xfffffe005119b014, FP=0xfffffe475ebefec0
CORE 1: PC=0xfffffe0050b2122c, LR=0xfffffe0050b21228, FP=0xfffffe475e9f7e60
CORE 2: PC=0xfffffe0050b2122c, LR=0xfffffe0050b21228, FP=0xfffffe475fd6be60
CORE 3: PC=0xfffffe0050b2122c, LR=0xfffffe0050b21228, FP=0xfffffe4760e8be60
CORE 4: PC=0xfffffe0050b2091c, LR=0xfffffe00509e502c, FP=0xfffffe4760c33ed0
CORE 5: PC=0xfffffe0050b2122c, LR=0xfffffe0050b21228, FP=0xfffffe475f993e60
CORE 6 is the one that panicked. Check the full backtrace for details.
CORE 7: PC=0xfffffe00509e5020, LR=0xfffffe00509e5020, FP=0xfffffe476136fed0
CORE 8: PC=0xfffffe00509e5020, LR=0xfffffe00509e5020, FP=0xfffffe47609afed0
CORE 9: PC=0xfffffe00509e5020, LR=0xfffffe00509e5020, FP=0xfffffe475ff9fed0
CORE 10: PC=0x00000001a8b59b74, LR=0x00000001a8b59bc0, FP=0x000000016f4d48b0
CORE 11: PC=0xfffffe00509e5020, LR=0xfffffe00509e5020, FP=0xfffffe4760413ed0
CORE 12: PC=0xfffffe00509e5020, LR=0xfffffe00509e5020, FP=0xfffffe4760913ed0
CORE 13: PC=0xfffffe0050b2122c, LR=0xfffffe0050b21228, FP=0xfffffe4760d3be60
CORE 14: PC=0xfffffe00509e5020, LR=0xfffffe00509e5020, FP=0xfffffe476146bed0
CORE 15: PC=0xfffffe00509e5020, LR=0xfffffe00509e5020, FP=0xfffffe47612afed0
Compressor Info: 0% of compressed pages limit (OK) and 0% of segments limit (OK) with 0 swapfiles and OK swap space
Panicked task 0xfffffe1a9e08ab30: 0 pages, 852 threads: pid 0: kernel_task
Panicked thread: 0xfffffe2aff86b7d8, backtrace: 0xfffffe475e073600, tid: 2781417
lr: 0xfffffe00509a6c98 fp: 0xfffffe475e0736a0
lr: 0xfffffe0050b1d218 fp: 0xfffffe475e073710
lr: 0xfffffe0050b1b450 fp: 0xfffffe475e0737d0
lr: 0xfffffe0050957e38 fp: 0xfffffe475e0737e0
lr: 0xfffffe00509a6fa8 fp: 0xfffffe475e073d00
lr: 0xfffffe00512acae8 fp: 0xfffffe475e073d20
lr: 0xfffffe0051b5f260 fp: 0xfffffe475e073d70
lr: 0xfffffe0051b361f8 fp: 0xfffffe475e073d90
lr: 0xfffffe00511a5e4c fp: 0xfffffe475e073dc0
lr: 0xfffffe00511a5cc0 fp: 0xfffffe475e073df0
lr: 0xfffffe0050a103f8 fp: 0xfffffe475e073e30
lr: 0xfffffe0050a1139c fp: 0xfffffe475e073f20
lr: 0xfffffe00509588ac fp: 0x0000000000000000
Kernel Extensions in backtrace:
com.apple.driver.AppleDisplayCrossbar(1.0)[8B7D0D07-1D72-358B-AEC1-0853B1CD34FE]@0xfffffe0051b2bdc0->0xfffffe0051b69eef
dependency: com.apple.driver.AppleARMPlatform(1.0.2)[0A1DE249-D410-367F-8F42-64F23979E5A2]@0xfffffe00514218a0->0xfffffe0051479ddb
dependency: com.apple.driver.AppleTypeCPhy(1)[F5B265B2-3EB7-3467-A336-BDD6F95EC169]@0xfffffe00527de1c0->0xfffffe00527f1bf3
dependency: com.apple.iokit.IOAVFamily(1.0.0)[7F89B4D4-BC59-3A62-9798-2CBF8D993F2A]@0xfffffe0052f82800->0xfffffe005300b9d3
dependency: com.apple.iokit.IOAccessoryManager(1.0.0)[D5109EDC-40CD-32F0-B8B6-AAD897AA3918]@0xfffffe005300b9e0->0xfffffe00531059e7
dependency: com.apple.iokit.IODisplayPortFamily(1.0.0)[B78EF13B-3720-3B4F-9D90-6E30C9DCA359]@0xfffffe00531c50b0->0xfffffe005322862f
dependency: com.apple.iokit.IOPortFamily(1.0)[C5B34123-F555-3C9A-B2D4-83E082765816]@0xfffffe0053551ab0->0xfffffe0053551b33
dependency: com.apple.iokit.IOThunderboltFamily(9.3.3)[1F31109B-1AC5-3433-8276-698E6DCF1B35]@0xfffffe005366ec20->0xfffffe0053849ff3


last started kext at 1732394985: com.apple.filesystems.smbfs 6.0 (addr 0xfffffe004fd82550, size 113076)
loaded kexts:
com.apple.filesystems.smbfs 6.0
com.apple.filesystems.autofs 3.0
com.apple.AppleEthernetAquantiaAqtionFirmware 1.0.36
com.apple.driver.AppleTopCaseHIDEventDriver 9410.3
com.apple.driver.AppleUSBTopCaseDriver 9410.3
com.apple.driver.usb.AppleUSBHostBillboardDevice 1.0
com.apple.driver.CoreKDL 1
com.apple.driver.AppleBiometricServices 1
com.apple.iokit.SCSITaskUserClient 541.40.1
com.apple.driver.AppleUSBMassStorageInterfaceNub 557
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.SEPHibernation 1
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleThunderboltIP 4.0.3
com.apple.driver.AppleFileSystemDriver 3.0.1
com.apple.driver.AppleUSBDeviceNCM 5.0.0
com.apple.driver.AppleGL3590FirmwareUpdater 1
com.apple.nke.l2tp 1.9
com.apple.filesystems.tmpfs 1
com.apple.driver.AppleSmartIO2 1
com.apple.filesystems.nfs 1
com.apple.filesystems.lifs 1
com.apple.filesystems.apfs 2632.40.15
com.apple.IOTextEncryptionFamily 1.0.0
com.apple.filesystems.hfs.kext 704.40.4
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.ApplePMP 1
com.apple.driver.ApplePMPFirmware 1
com.apple.driver.AppleS8000DWI 1.0.0d1
com.apple.AppleEmbeddedSimpleSPINORFlasher 1
com.apple.driver.AppleCS42L84Audio 910.2
com.apple.driver.AppleT6041MCC 1
com.apple.driver.AppleTypeCRetimer 1.0.0
com.apple.driver.AppleSN012776Amp 910.2
com.apple.driver.AppleT6041CLPC 1
com.apple.driver.AppleT6041SOCTuner 1
com.apple.driver.AppleT6041PMGR 1
com.apple.driver.AppleEventLogHandler 1
com.apple.driver.ApplePMUFirmwareDriver 1.0.0
com.apple.driver.AppleProcessorTrace 1.0.0
com.apple.driver.AppleS5L8920XPWM 1.0.0d1
com.apple.driver.AudioDMAController-T604x 510.4
com.apple.driver.AppleAVD 906
com.apple.AGXG16X 341.11
com.apple.driver.AppleJPEGDriver 7.7.2
com.apple.driver.AppleAVE2 905.5.3
com.apple.driver.AppleQSPIMC 1
com.apple.driver.AppleSamsungSerial 1.0.0d1
com.apple.driver.AppleSerialShim 1
com.apple.driver.AppleMobileDispT604X-DCP 140.0
com.apple.driver.AppleS8000AES 1
com.apple.driver.AppleProResHW 526.5
com.apple.driver.usb.AppleSynopsysUSB40XHCI 1
com.apple.driver.AppleInterruptControllerV3 1.0.0d1
com.apple.driver.AppleBluetoothModule 1
com.apple.driver.AppleBCMWLANBusInterfacePCIe 1
com.apple.driver.AppleSPIMC 1
com.apple.driver.AppleT8110DART 1
com.apple.driver.AppleS5L8940XI2C 1.0.0d2
com.apple.driver.AppleT6041 1
com.apple.driver.AppleM68Buttons 1.0.0d1
com.apple.driver.AppleSDXC 3.5.4
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 514.40.7
com.apple.AppleSystemPolicy 2.0.0
com.apple.kec.InvalidateHmac 1
com.apple.kec.AppleEncryptedArchive 1
com.apple.driver.driverkit.serial 6.0.0
com.apple.driver.AppleActuatorDriver 9410.2
com.apple.driver.usb.IOUSBHostHIDDevice 1.2
com.apple.driver.AppleMultitouchDriver 9410.2
com.apple.driver.AppleInputDeviceSupport 9000.27
com.apple.driver.AppleHIDKeyboard 9410.2
com.apple.driver.AppleEthernetAquantiaAqtion 1.0.64
com.apple.driver.AppleMesaSEPDriver 100.99
com.apple.iokit.IOBiometricFamily 1
com.apple.driver.AppleUVDMDriver 1.0.0
com.apple.driver.AppleUVDM 1.0.0
com.apple.driver.usb.cdc 5.0.0
com.apple.driver.AppleUSBAudio 810.17
com.apple.iokit.IOAudioFamily 700.2
com.apple.driver.AppleIOPADMAStream 300.8
com.apple.driver.AOPAudio2 300.4
com.apple.driver.usb.AppleEmbeddedUSBXHCIPCI 1
com.apple.driver.usb.AppleUSBXHCIPCI 1.2
com.apple.driver.AppleConvergedIPCOLYBTControl 1
com.apple.driver.AppleConvergedPCI 1
com.apple.driver.AppleBluetoothDebug 1
com.apple.driver.DiskImages.KernelBacked 493.0.0
com.apple.driver.AppleSEPHDCPManager 1.0.1
com.apple.driver.AppleTrustedAccessory 1
com.apple.iokit.AppleSEPGenericTransfer 1
com.apple.driver.AppleBTM 1.0.1
com.apple.driver.AppleAuthCP 1.0.0
com.apple.driver.AppleXsanScheme 3
com.apple.driver.AppleThunderboltPCIDownAdapter 4.1.1
com.apple.driver.AppleThunderboltDPInAdapter 8.5.1
com.apple.driver.AppleThunderboltDPAdapterFamily 8.5.1
com.apple.driver.AppleThunderboltUSBDownAdapter 1.0.4
com.apple.driver.usb.networking 5.0.0
com.apple.nke.ppp 1.9
com.apple.driver.AppleDCPDPTXProxy 1.0.0
com.apple.driver.DCPDPFamilyProxy 1
com.apple.driver.AppleBSDKextStarter 3
com.apple.kext.triggers 1.0
com.apple.driver.usb.AppleUSBHostPacketFilter 1.0
com.apple.driver.IOHIDPowerSource 1
com.apple.driver.AppleCallbackPowerSource 1
com.apple.filesystems.hfs.encodings.kext 1
com.apple.driver.AppleSyntheticGameController 13.1.8
com.apple.iokit.IONVMeFamily 2.1.0
com.apple.driver.AppleSSE 1.0
com.apple.driver.AppleSART 1
com.apple.AGXFirmwareKextG16XRTBuddy 1
com.apple.AGXFirmwareKextRTBuddy64 341.11
com.apple.driver.AppleSPU 1
com.apple.driver.AppleStockholmControl 1.0.0
com.apple.driver.AppleDiagnosticDataAccessReadOnly 1.0.0
com.apple.driver.AppleNANDConfigAccess 1.0.0
com.apple.driver.AppleARMWatchdogTimer 1
com.apple.driver.AppleCSEmbeddedAudio 910.2
com.apple.driver.AppleI2CEthernetAquantia 1.0.0
com.apple.driver.AppleEmbeddedAudio 910.2
com.apple.iokit.AppleARMIISAudio 500.18
com.apple.driver.IISAudioIsolatedStreamECProxy 500.18
com.apple.driver.ApplePassthroughPPM 3.0
com.apple.driver.AppleHPM 3.4.4
com.apple.driver.ApplePMGR 1
com.apple.driver.ApplePTD 1.0.0
com.apple.driver.AppleSPMIPMU 1.0.1
com.apple.driver.AppleDialogPMU 1.0.1
com.apple.driver.AppleT6040TypeCPhy 1
com.apple.driver.DMAChannelProxy 510.4
com.apple.driver.AudioSharedDARTMapperProxy 300.59
com.apple.driver.ExclavesAudioKext 300.59
com.apple.driver.AudioDMAFamily 510.4
com.apple.driver.AudioDMACLLTEscalationDetector-Stub 510.4
com.apple.iokit.IOPAudioDriverFamily 300.4
com.apple.driver.AppleEmbeddedAudioLibs 500.4
com.apple.iokit.IOGPUFamily 129.2.10
com.apple.driver.AppleSPMI 1.0.1
com.apple.driver.DCPAVFamilyProxy 1
com.apple.driver.AppleA7IOP-ASCWrap-v6 1.0.2
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.AppleEmbeddedUSBHost 1
com.apple.driver.usb.AppleUSBHub 1.2
com.apple.driver.usb.AppleUSBHostCompositeDevice 1.2
com.apple.driver.AppleBluetoothDebugService 1
com.apple.driver.AppleBCMWLANCore 1.0.0
com.apple.iokit.IO80211Family 1200.13.1
com.apple.driver.IOImageLoader 1.0.0
com.apple.driver.AppleOLYHAL 1
com.apple.driver.AppleMobileApNonce 1
com.apple.driver.AppleDisplayCrossbar 1.0.0
com.apple.iokit.IODisplayPortFamily 1.0.0
com.apple.driver.AppleTypeCPhy 1
com.apple.driver.AppleThunderboltNHI 7.2.81
com.apple.driver.AppleT6020PCIeCPIODMA 1
com.apple.driver.AppleT6040PCIeC 1
com.apple.iokit.IOThunderboltFamily 9.3.3
com.apple.driver.AppleEthernetAquantiaAqtionPortMonitor 1.0.0
com.apple.iokit.IOAVBFamily 1400.10
com.apple.plugin.IOgPTPPlugin 1410.2
com.apple.driver.AppleT6020PCIePIODMA 1
com.apple.driver.AppleDisplayManager 1.0
com.apple.iokit.IOMobileGraphicsFamily-DCP 343.0.0
com.apple.driver.AppleDCP 1
com.apple.driver.AppleFirmwareKit 1
com.apple.driver.AppleFirmwareUpdateKext 1
com.apple.iokit.IOMobileGraphicsFamily 343.0.0
com.apple.driver.AppleM2ScalerCSCDriver 265.0.0
com.apple.driver.AppleA7IOP-MXWrap-v1 1.0.2
com.apple.driver.AppleT6040PCIe 1
com.apple.driver.AppleGPIOICController 1.0.2
com.apple.driver.AppleEverestErrorHandler 1
com.apple.driver.AppleMultiFunctionManager 1
com.apple.driver.corecapture 1.0.4
com.apple.driver.AppleEmbeddedPCIE 1
com.apple.driver.ApplePIODMA 1
com.apple.iokit.IOTimeSyncFamily 1410.2
com.apple.driver.DiskImages 493.0.0
com.apple.iokit.IOGraphicsFamily 599
com.apple.iokit.IOBluetoothFamily 9.0.0
com.apple.driver.AppleUIO 1
com.apple.driver.AppleT6041ANEHAL 9.102.3
com.apple.driver.AppleSEPKeyStore 2
com.apple.driver.AppleUSBTDM 557
com.apple.iokit.IOUSBMassStorageDriver 270
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOUSBHostFamily 1.2
com.apple.iokit.IOPortFamily 1.0
com.apple.driver.AppleUSBHostMergeProperties 1.2
com.apple.driver.usb.AppleUSBCommon 1.0
com.apple.driver.AppleSMC 3.1.9
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.IOSerialFamily 11
com.apple.iokit.IOSCSIBlockCommandsDevice 541.40.1
com.apple.iokit.IOSCSIArchitectureModelFamily 541.40.1
com.apple.driver.AppleRSMChannel 1
com.apple.iokit.IORSMFamily 1
com.apple.driver.AppleLockdownMode 1
com.apple.driver.AppleIPAppender 1.0
com.apple.iokit.IOSkywalkFamily 1.0
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IONetworkingFamily 3.4
com.apple.driver.AppleH16ANEInterface 9.102.1
com.apple.driver.RTBuddy 1.0.0
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleEffaceableStorage 1.0
com.apple.driver.AppleCredentialManager 1.0
com.apple.driver.AppleSEPManager 1.0.1
com.apple.driver.IODARTFamily 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.AUC 1.0
com.apple.iokit.IOSurface 393.2.9
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 500.2
com.apple.driver.AppleAudioClockLibs 500.4
com.apple.driver.FairPlayIOKit 72.14.0
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 7.0.0
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 26.0



** Stackshot Succeeded ** Bytes Traced 780394 (Uncompressed 1825024) **
 
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