panic(cpu 0 caller 0xffffff80181f6e40): "hfs_UNswap_BTNode: invalid backward link (0x0002856d == 0x0002856d)\n"@/AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/hfs/hfs-556.60.1/core/hfs_endian.c:302
Backtrace (CPU 0), Frame : Return Address
0xffffffb0dc252cc0 : 0xffffff80168bab4d 
0xffffffb0dc252d10 : 0xffffff80169fd7e3 
0xffffffb0dc252d50 : 0xffffff80169ede1a 
0xffffffb0dc252da0 : 0xffffff801685fa2f 
0xffffffb0dc252dc0 : 0xffffff80168ba3ed 
0xffffffb0dc252ee0 : 0xffffff80168ba6d8 
0xffffffb0dc252f50 : 0xffffff80170bef9a 
0xffffffb0dc252fc0 : 0xffffff80181f6e40 
0xffffffb0dc253040 : 0xffffff80181e7cb3 
0xffffffb0dc253090 : 0xffffff80181ef887 
0xffffffb0dc2531a0 : 0xffffff80181eef59 
0xffffffb0dc253230 : 0xffffff80181f1719 
0xffffffb0dc253290 : 0xffffff8018221401 
0xffffffb0dc2532d0 : 0xffffff80181e68a3 
0xffffffb0dc253340 : 0xffffff80181fa119 
0xffffffb0dc253a00 : 0xffffff8016b7c17e 
0xffffffb0dc253a80 : 0xffffff8016e1aa07 
0xffffffb0dc253f40 : 0xffffff8016f698cb 
0xffffffb0dc253fa0 : 0xffffff80168601f6 
      Kernel Extensions in backtrace:
         com.apple.filesystems.hfs.kext(556.60.1)[CA235EAE-E294-3F07-B75B-36CF5D5287E4]@0xffffff80181d8000->0xffffff801823afff
            dependency: com.apple.filesystems.hfs.encodings.kext(1)[99860746-6E6D-383E-BBAD-9EA92F3C189F]@0xffffff801823d000->0xffffff801823efff

Process name corresponding to current thread: backupd

Mac OS version:
20D74

Kernel version:
Darwin Kernel Version 20.3.0: Thu Jan 21 00:07:06 PST 2021; root:xnu-7195.81.3~1/RELEASE_X86_64
Kernel UUID: C86236B2-4976-3542-80CA-74A6B8B4BA03
KernelCache slide: 0x0000000016600000
KernelCache base:  0xffffff8016800000
Kernel slide:      0x0000000016610000
Kernel text base:  0xffffff8016810000
__HIB  text base: 0xffffff8016700000
System model name: MacBookPro14,3 (Mac-551B86E5744E2388)
System shutdown begun: NO
Panic diags file available: YES (0x0)
Hibernation exit count: 0

System uptime in nanoseconds: 8367943474226
Last Sleep:           absolute           base_tsc          base_nano
  Uptime  : 0x0000079c504c615d
  Sleep   : 0x00000788e5396e23 0x00000000878e0dc8 0x0000077d4052aeb5
  Wake    : 0x00000788ee4f0aa2 0x0000000087bf8a7d 0x00000788ec3c529a
last started kext at 8343172387843: >!AXsanScheme	3 (addr 0xffffff8018067000, size 12288)
last stopped kext at 7980418608081: >usb.!UUserHCI	1 (addr 0xffffff7fb719e000, size 102400)
loaded kexts:
>usb.!UUserHCI	1
@filesystems.afpfs	11.3
@nke.asp_tcp	8.2
@filesystems.smbfs	3.4.1
>!A!BMultitouch	99
>AudioAUUC	1.70
>AGPM	119
>!APlatformEnabler	2.7.0d0
>X86PlatformShim	1.0.0
@fileutil	20.036.15
@filesystems.autofs	3.0
>!AHIDALSService	1
@kext.AMDFramebuffer	4.0.2
@kext.AMDRadeonServiceManager	4.0.2
@kext.AMDRadeonX4000	4.0.2
>!AUpstreamUserClient	3.6.8
>!AGraphicsDevicePolicy	6.2.2
@AGDCPluginDisplayMetrics	6.2.2
>pmtelemetry	1
>LuaHardwareAccess	1.0.16
|IOUserEthernet	1.0.1
|IO!BSerialManager	8.0.3d9
@Dont_Steal_Mac_OS_X	7.0.0
>!AHDA	283.15
>!AHV	1
>!ADiskImages2	1
>!A!IKBLGraphics	16.0.1
>!A!IPCHPMC	2.0.1
>AGDCBacklightControl	6.2.2
>!AMuxControl	6.2.2
>!A!ISlowAdaptiveClocking	4.0.0
>!AGFXHDA	100.1.431
>!AMCCSControl	1.14
>!AEmbeddedOSSupportHost	1
>!A!IKBLGraphicsFramebuffer	16.0.1
>eficheck	1
@kext.AMD9500!C	4.0.2
>!AThunderboltIP	4.0.3
>SMCMotionSensor	3.0.4d1
@filesystems.tmpfs	1
@filesystems.hfs.kext	556.60.1
@BootCache	40
@!AFSCompression.!AFSCompressionTypeZlib	1.0.0
@!AFSCompression.!AFSCompressionTypeDataless	1.0.0d1
>!ATopCaseHIDEventDriver	4030.5
>AirPort.BrcmNIC	1400.1.1
@filesystems.apfs	1677.81.1
@private.KextAudit	1.0
>!ASmartBatteryManager	161.0.0
>!AACPIButtons	6.1
>!ARTC	2.0
>!ASMBIOS	2.1
>!AACPIEC	6.1
>!AAPIC	1.7
@!ASystemPolicy	2.0.0
@nke.applicationfirewall	310
|IOKitRegistryCompatibility	1
|EndpointSecurity	1
>!AXsanScheme	3
>usb.cdc.acm	5.0.0
>usb.serial	6.0.0
>usb.cdc.ecm	5.0.0
>usb.IOUSBHostHIDDevice	1.2
>!UAudio	401.4
$SecureRemotePassword	1.0
@kext.triggers	1.0
@kext.AMDRadeonX4100HWLibs	1.0
@kext.AMDRadeonX4000HWServices	4.0.2
|IOAVB!F	930.1
>DspFuncLib	283.15
@kext.OSvKernDSPLib	529
@plugin.IOgPTPPlugin	900.11
|IOEthernetAVB!C	1.1.0
>!AGraphicsControl	6.2.2
>!ABacklightExpert	1.1.0
|IO!BHost!CUARTTransport	8.0.3d9
|IO!BHost!CTransport	8.0.3d9
@!AGPUWrangler	6.2.2
|IOSlowAdaptiveClocking!F	1.0.0
>!ASMBus!C	1.0.18d1
>!AHDA!C	283.15
|IOHDA!F	283.15
|IOAudio!F	300.6.1
@vecLib.kext	1.2.0
|IONDRVSupport	585
>!A!ILpssUARTv1	3.0.60
>!A!ILpssUARTCommon	3.0.60
>!AOnboardSerial	1.0
|IOSerial!F	11
|IOAccelerator!F2	439.52
@kext.AMDSupport	4.0.2
@!AGraphicsDeviceControl	6.2.2
|IOGraphics!F	585
>X86PlatformPlugin	1.0.0
>IOPlatformPlugin!F	6.0.0d8
>usb.cdc.ncm	5.0.0
>usb.!UiBridge	1.0
>usb.cdc	5.0.0
>usb.networking	5.0.0
>usb.!UHostCompositeDevice	1.2
>usb.!UHub	1.2
>!AThunderboltDPInAdapter	8.1.4
>!AThunderboltDPAdapter!F	8.1.4
>!AThunderboltPCIDownAdapter	4.1.1
>!AActuatorDriver	4400.28
>!ABSDKextStarter	3
|IOSurface	289.3
@filesystems.hfs.encodings.kext	1
>!AHIDKeyboard	223
>!AMultitouchDriver	4400.28
>!AInputDeviceSupport	4400.35
>!AHS!BDriver	4030.5
>IO!BHIDDriver	8.0.3d9
>!AHSSPIHIDDriver	61
>!AHSSPISupport	61
|IO80211!F	1200.12.2b1
|IOSkywalk!F	1
>mDNSOffloadUserClient	1.0.1b8
>corecapture	1.0.4
>!A!ILpssSpi!C	3.0.60
|IONVMe!F	2.1.0
>!AThunderboltNHI	7.2.8
>!AHPM	3.4.4
|IOThunderbolt!F	9.3.2
>!A!ILpssI2C!C	3.0.60
>!A!ILpssDmac	3.0.60
>!A!ILpssI2C	3.0.60
>!A!ILpssGspi	3.0.60
>usb.!UXHCIPCI	1.2
>usb.!UXHCI	1.2
|IOUSB!F	900.4.2
>!AEFINVRAM	2.1
>!AEFIRuntime	2.1
|IOSMBus!F	1.1
|IOHID!F	2.0.0
$!AImage4	3.0.0
|IOTimeSync!F	900.11
|IONetworking!F	3.4
>DiskImages	493.0.0
|IO!B!F	8.0.3d9
|IOReport!F	47
|IO!BPacketLogger	8.0.3d9
$quarantine	4
$sandbox	300.0
@kext.!AMatch	1.0.0d1
|CoreAnalytics!F	1
>!ASSE	1.0
>!AKeyStore	2
>!UTDM	511.60.2
|IOUSBMass!SDriver	184.40.6
|IOSCSIBlockCommandsDevice	436.40.6
|IO!S!F	2.1
|IOSCSIArchitectureModel!F	436.40.6
>!AMobileFileIntegrity	1.0.5
@kext.CoreTrust	1
>!AFDEKeyStore	28.30
>!AEffaceable!S	1.0
>!ACredentialManager	1.0
>KernelRelayHost	1
|IOUSBHost!F	1.2
>!UHostMergeProperties	1.2
>usb.!UCommon	1.0
>!ABusPower!C	1.0
>!ASEPManager	1.0.1
>IOSlaveProcessor	1
>!AACPIPlatform	6.1
>!ASMC	3.1.9
|IOPCI!F	2.9
|IOACPI!F	1.4
>watchdog	1
@kec.pthread	1
@kec.corecrypto	11.1
@kec.Libm	1