Error Message

[DPinTX]

Hello, My iMac keeps rebooting and giving me this error message below, I booted in to Diag mode and did an extended test and everything came back OK, So I know there a lot more smarter people on here than me so maybe one of you can tell me what this means.

Thanks
DP



Sat Aug 29 14:00:37 2015

*** Panic Report ***
panic(cpu 6 caller 0xffffff8009333d41): "hfs_UNswap_BTNode: invalid backward link (0x00025452 == 0x00025452)\n"@/SourceCache/xnu/xnu-2782.40.9/bsd/hfs/hfs_endian.c:303
Backtrace (CPU 6), Frame : Return Address
0xffffff83b085ba90 : 0xffffff8008f2ad21
0xffffff83b085bb10 : 0xffffff8009333d41
0xffffff83b085bb60 : 0xffffff80093243c7
0xffffff83b085bb90 : 0xffffff8009179295
0xffffff83b085bca0 : 0xffffff800917870a
0xffffff83b085bd50 : 0xffffff8009176ca4
0xffffff83b085bda0 : 0xffffff800935d951
0xffffff83b085bdd0 : 0xffffff80093548cf
0xffffff83b085beb0 : 0xffffff80091576ab
0xffffff83b085bed0 : 0xffffff8009141fc4
0xffffff83b085bf40 : 0xffffff800914c177
0xffffff83b085bf50 : 0xffffff800944b376
0xffffff83b085bfb0 : 0xffffff80090344a6

BSD process name corresponding to current thread: launchd

Mac OS version:
14F27

Kernel version:
Darwin Kernel Version 14.5.0: Wed Jul 29 02:26:53 PDT 2015; root:xnu-2782.40.9~1/RELEASE_X86_64
Kernel UUID: 58F06365-45C7-3CA7-B80D-173AFD1A03C4
Kernel slide: 0x0000000008c00000
Kernel text base: 0xffffff8008e00000
__HIB text base: 0xffffff8008d00000
System model name: iMac13,2 (Mac-FC02E91DDD3FA6A4)

System uptime in nanoseconds: 426917624583
last loaded kext at 398834644105: com.apple.filesystems.afpfs 11.0 (addr 0xffffff7f8bc6b000, size 364544)
last unloaded kext at 105919906488: com.apple.driver.AirPort.Brcm4331 800.20.24 (addr 0xffffff7f8ae1c000, size 2043904)
loaded kexts:
com.apple.filesystems.afpfs 11.0
com.apple.nke.asp-tcp 8.0.0
com.apple.driver.AudioAUUC 1.70
com.apple.driver.AppleBluetoothMultitouch 85.3
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.filesystems.autofs 3.0
com.apple.driver.AGPM 110.19.6
com.apple.driver.ApplePlatformEnabler 2.2.0d4
com.apple.driver.X86PlatformShim 1.0.0
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.6f3
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.iokit.IOBluetoothSerialManager 4.3.6f3
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleMikeyDriver 272.18.1
com.apple.driver.AppleHDA 272.18.1
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.GeForce 10.0.4
com.apple.driver.AppleIntelHD4000Graphics 10.0.6
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleHV 1
com.apple.driver.AppleThunderboltIP 2.0.2
com.apple.driver.AppleIntelFramebufferCapri 10.0.6
com.apple.driver.AppleSMCLMU 2.0.7d0
com.apple.driver.AppleLPC 1.7.3
com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0
com.apple.driver.AppleBacklight 170.7.4
com.apple.driver.AppleMCCSControl 1.2.12
com.apple.driver.AppleUSBDisplays 372.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0
com.apple.BootCache 36
com.apple.driver.AppleUSBHub 705.4.2
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.7.1
com.apple.driver.AppleSDXC 1.6.5
com.apple.iokit.AppleBCM5701Ethernet 10.1.3
com.apple.driver.AirPort.Brcm4360 930.37.3
com.apple.driver.AppleAHCIPort 3.1.2
com.apple.driver.AppleUSBEHCI 705.4.14
com.apple.driver.AppleUSBXHCI 710.4.11
com.apple.driver.AppleACPIButtons 3.1
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 3.1
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0
com.apple.nke.applicationfirewall 161
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleIntelCPUPowerManagement 218.0.0
com.apple.security.SecureRemotePassword 1.0
com.apple.driver.IOBluetoothHIDDriver 4.3.6f3
com.apple.driver.AppleMultitouchDriver 264.6
com.apple.kext.triggers 1.0
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.6f3
com.apple.iokit.IOSerialFamily 11
com.apple.iokit.IOBluetoothFamily 4.3.6f3
com.apple.driver.DspFuncLib 272.18.1
com.apple.kext.OSvKernDSPLib 1.15
com.apple.nvidia.driver.NVDAGK100Hal 10.0.4
com.apple.nvidia.driver.NVDAResman 10.0.4
com.apple.iokit.IOSurface 97.4
com.apple.driver.AppleThunderboltEDMSink 4.0.3
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.iokit.IOAcceleratorFamily2 156.16
com.apple.AppleGraphicsDeviceControl 3.10.25
com.apple.driver.AppleHDAController 272.18.1
com.apple.iokit.IOHDAFamily 272.18.1
com.apple.iokit.IOAudioFamily 203.3
com.apple.vecLib.kext 1.2.0
com.apple.driver.X86PlatformPlugin 1.0.0
com.apple.driver.IOPlatformPluginFamily 5.9.1d7
com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0
com.apple.driver.AppleBacklightExpert 1.1.0
com.apple.driver.AppleSMC 3.1.9
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.driver.AppleSMBusController 1.0.13d1
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOUSBUserClient 705.4.0
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.5
com.apple.iokit.IOUSBHIDDriverPM 710.4.7
com.apple.driver.AppleUSBHIDKeyboard 176.2
com.apple.driver.AppleHIDKeyboard 176.2
com.apple.iokit.IOUSBHIDDriver 705.4.0
com.apple.driver.AppleUSBMergeNub 705.4.0
com.apple.driver.AppleUSBComposite 705.4.9
com.apple.driver.CoreStorage 471.30.1
com.apple.driver.AppleThunderboltDPOutAdapter 4.0.6
com.apple.driver.AppleThunderboltDPInAdapter 4.0.6
com.apple.driver.AppleThunderboltDPAdapterFamily 4.0.6
com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2
com.apple.driver.AppleThunderboltNHI 3.1.7
com.apple.iokit.IOThunderboltFamily 4.2.2
com.apple.iokit.IOEthernetAVBController 1.0.3b3
com.apple.iokit.IO80211Family 730.60
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOAHCIFamily 2.7.5
com.apple.iokit.IOUSBFamily 720.4.4
com.apple.driver.AppleEFINVRAM 2.0
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.driver.AppleEFIRuntime 2.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 300.0
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.AppleKeyStore 2
com.apple.driver.AppleMobileFileIntegrity 1.0.5
com.apple.driver.AppleCredentialManager 1.0
com.apple.driver.DiskImages 398
com.apple.iokit.IOStorageFamily 2.0
com.apple.iokit.IOReportFamily 31
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 3.1
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0
com.apple.kec.Libm 1
com.apple.kec.pthread 1
Model: iMac13,2, BootROM IM131.010A.B08, 4 processors, Intel Core i7, 3.4 GHz, 32 GB, SMC 2.11f14
Graphics: NVIDIA GeForce GTX 680MX, NVIDIA GeForce GTX 680MX, PCIe, 2048 MB
Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x029E, 0x434D5358384758334D314131363030433130
Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x029E, 0x434D5358384758334D314131363030433130
Memory Module: BANK 0/DIMM1, 8 GB, DDR3, 1600 MHz, 0x029E, 0x434D5358384758334D314131363030433130
Memory Module: BANK 1/DIMM1, 8 GB, DDR3, 1600 MHz, 0x029E, 0x434D5358384758334D314131363030433130
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xF4), Broadcom BCM43xx 1.0 (7.15.166.24.3)
Bluetooth: Version 4.3.6f3 16238, 3 services, 27 devices, 1 incoming serial ports
Network Service: Ethernet 1, Ethernet, en0
Serial ATA Device: APPLE HDD WDC WD10EALX-408EA0, 1 TB
Serial ATA Device: APPLE SSD SM128E, 121.33 GB
USB Device: Hub
USB Device: Keyboard Hub
USB Device: Apple Keyboard
USB Device: FaceTime HD Camera (Built-in)
USB Device: Hub
USB Device: Hub
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
Thunderbolt Bus: iMac, Apple Inc., 23.4

 

[rigormortis]

this is advice for any mac problem but yours is a disk error, please go to message 4

start with the easy stuff.
erase prm
https://support.apple.com/kb/PH14222?locale=en_US
erase smc
https://support.apple.com/en-la/HT201295

disk utility won't tell you the "smart" condition anymore and apple hardware test will not tell you if your hard disk is still good. all apple hardware test does is check to make sure the hard disk is installed. so therefor you need to check the "smart condition" is normal. and the disk is good

this means going into about this mac (if you can ) , system report, storage. it should say s.m.a.r.t. status verified if it says anything else , like failed or failing, it means your hard disk is totally shot and you need to buy a new one, period end of story.

smart status also applies to SSDs.

boot hard disk into recovery mode and run disk utility to repair permissions and repair the disk.

erase hard disk and reinstall os x. and restore from time machine.
if you have a SSD do a simple erase.
if you have a mechanical hard disk do a complete 1 pass to make sure you don't have any new bad sectors.



if none of this works, its time to take it to a genius. the genius is basically going to do everything i said.
so if you can show him how your computer passed apple hardware test, then his tests are not really going to do anything that AHT didn't already do. except give you a GUI

when geniuses are stumped they will just tell you that you have to turn off your computer off once in a while. you tell them this guy googled this and he said my computer was only on for 7 minutes and i want to talk to a different genius.

 

[rigormortis]

please skip this

 

[rigormortis]

i google this and hfs_UNswap_BTNode specifically means you have a hard disk problem.

AHT does NOT TEST hard disks.
verify disk is good by checking smart sensor, repairing permissions, repairing disks, and if all else fails erasing and reinstalling.

if smart status shows the drive is bad, have it replaced immediately.

like i said , system report is the fastest way to check the smart status.

here is a screen shot

 

[DPinTX]

here is what the report looks like. It shows verified .

 

[DPinTX]

ran the repair permissions and a lot of permissions were repaired, did a verify disk came back good, did a repair disk came back good, the only issue that came back was


Verifying permissions for “Macintosh HD”Warning: SUID file “System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent” has been modified and will not be repaired.

 

[DPinTX]

Its fix now,

I found that I could replicate the issue by trying to do a manual back up with time machine

I talked with Apple support, we did a OS reinstall, they told me they would call back ion an hour to see if ai still had an issue, and if I was they wanted to format my drive and reinstall from scratch, since I had a back up, well it was still having an issue so while I was waiting for them to call back, I wanted to make sure I had a current backup, every time I tired to force a backup now, it would reboot, it seems the hard dive went carupted on the apple airport extreme. I erased the hard drive and remounted it in time machine and its all working now.

thanks for all your help.
DP