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Kernel panic during scans/backups/reading from external or internal drive

669 Views 3 Replies Latest reply: Mar 15, 2013 10:39 AM by baltwo RSS
JacRb Calculating status...
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Mar 12, 2013 10:01 AM

Here is the kind of kernel panic I obtained.



I have a iMac with a 500Go internal HD and an external 500Go HD formatted with the Disk Utility.

The latter HD was partitioned in two partitions with the "Disk Utility": a 15Go partition onto which a basic OS X 10.6.4 system was installed with the installation disk, and a second empty partition of 480Go.  Moreover, on the 15Go partition, I installed a demo version of the "Speed Tools Pro" soft to proceed scans on the iMac internal HD. Indeed, I suspected problems with bad blocks or corrupted files on this internal drive because I was absolutely unable to proceed to backups of the internal HD with Time Machine on the second external partition because of systematic freezing during the process. Then, I booted on the external HD from which I launched the "Speed Tools Pro" soft to verify bad blocks on the internal HD. Then, crashes occur quite systematically after 75% of the scans. Moreover, because every complete backup (certain partial backups are possible) on the second external partition fails with Time Machine, I followed all of the verifications advised by "pondini" ( but without success.

Here is the report for one of these crashes involving files and which may indicate driver problems with the external HD:



Thus, from what those problems of crashes during backups of the internal HD or scans/reading of files could be due?

Also, I am unable to make backups of my iMac.



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%%%%%%%%%%%%%%%%%%%%%%%%

Interval Since Last Panic Report:  9096 sec

Panics Since Last Report:          1

Anonymous UUID:                    (I deleted the identity number…)



Tue Mar 12 16:36:42 2013

panic(cpu 0 caller 0x2a6ac2): Kernel trap at 0x0022f681, type 14=page fault, registers:

CR0: 0x8001003b, CR2: 0x00000008, CR3: 0x00100000, CR4: 0x000006e0

EAX: 0x00000001, EBX: 0x00000000, ECX: 0x080583d4, EDX: 0x00863e80

CR2: 0x00000008, EBP: 0x5b98beb8, ESI: 0x00000001, EDI: 0x00000001

EFL: 0x00010002, EIP: 0x0022f681, CS:  0x00000008, DS:  0x00000010

Error code: 0x00000000



Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)

0x5b98bcb8 : 0x21acfa (0x5ce650 0x5b98bcec 0x223156 0x0)

0x5b98bd08 : 0x2a6ac2 (0x590a50 0x22f681 0xe 0x590c1a)

0x5b98bde8 : 0x29c968 (0x5b98be00 0x7222a10 0x5b98beb8 0x22f681)

0x5b98bdf8 : 0x22f681 (0xe 0x48 0x5b980010 0x220010)

0x5b98beb8 : 0x5bab95ad (0x0 0x85dd80 0x5b98bed8 0x218c12)

0x5b98bed8 : 0x53c5bf (0x737aa00 0x1 0x737aa00 0x737aa00)

0x5b98bf48 : 0x53c6c5 (0x737aa00 0x80583d4 0x86e9c3fb 0x29b50a)

0x5b98bf78 : 0x22f3e5 (0x737aa00 0x0 0x5b98bfc8 0x2270aa)

0x5b98bfc8 : 0x29c68c (0x863ec0 0x0 0x10 0x77bfac0)

      Kernel Extensions in backtrace (with dependencies):





BSD process name corresponding to current thread: kernel_task



Mac OS version:




Kernel version:

Darwin Kernel Version 10.0.0: Fri Jul 31 22:47:34 PDT 2009; root:xnu-1456.1.25~1/RELEASE_I386

System model name: iMac7,1 (Mac-F42386C8)








Message was edited by: JacRb

iMac, Mac OS X (10.6.8), Time Machine kernel panic driver
  • baltwo Level 9 Level 9 (59,150 points)
    27" i7 iMac SL, Lion, OS X Mountain Lion (10.8.2), G4 450 MP w/Leopard, 9.2.2
  • baltwo Level 9 Level 9 (59,150 points)

    Also, is it possible the physically repair the bad blocks with a specific soft/app?

    Launch Disk Utility and erase, reformat, and select the zero out data security option. AFAIK, that'll isolate bad blocks. Bad blocks can't be repaired, just excluded.

    What could be the UNIX set of commands for all these processes?

    diskutil is the Terminal command for all of Disk Utility's operations.

    27" i7 iMac SL, Lion, OS X Mountain Lion (10.8.2), G4 450 MP w/Leopard, 9.2.2


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