Apple Event: May 7th at 7 am PT
I get these Kernel Panics from time to time. Sometimes two or three in one day. Sometimes the computer is idle for awhile and bam! Another one. Changed the memory sticks three times.
No one seems to have a clue about this!
Mac Pro, Mac OS X (10.6), Widows XP SP3 on VMWare Fusion
A kernel panic is not ONE problem, it is as many as Hundreds of different kinds of problems. Post a panic log if you want help with this.
Mac OS X: How to log a kernel Panic
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This one dates from last september but they all look the same to me...
Sat Sep 14 07:43:05 2013
panic(cpu 0 caller 0x87a3ae8b): "Uncorrectable Fbd memory error detected. FERR_NF = 0x00000020 , NERR_NF == 0x02000021\n"@/SourceCache/AppleMCEDriver/AppleMCEDriver-119.4.0/AppleMCEDriver .cpp:947
Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x10bc58 : 0x21b837 (0x5dd7fc 0x10bc8c 0x223ce1 0x0)
0x10bca8 : 0x87a3ae8b (0x87a3b90c 0x20 0x2000021 0x8100a4)
0x10bd18 : 0x87a3b15d (0x10819a00 0x10819a00 0x2 0x820044)
0x10bd98 : 0x7d7b0a50 (0x10819a00 0x0 0xf1fe980 0x0)
0x10bdc8 : 0x7d7afd09 (0xee2a300 0x0 0x0 0x1c)
0x10bde8 : 0x7d7beebc (0x1c 0x10be5c 0x8 0x7d7bc5f0)
0x10be18 : 0x7d7bf0be (0xf1de91c 0x17 0xee2a63e 0x0)
0x10be78 : 0x7d7c662e (0xee0b748 0x10bec8 0x10bef8 0x0)
0x10be98 : 0x56ac20 (0xee0b748 0x0 0xecd5d80 0x0)
0x10bee8 : 0x7d9be5bb (0xee2a380 0x0 0xee2a380 0x0)
0x10bf18 : 0x7d7a3213 (0xf1d3500 0x0 0x0 0x49)
0x10bf38 : 0x7d7ae911 (0x49 0x0 0x10bf78 0x0)
0x10bf58 : 0x580d96 (0xed34b80 0x0 0xed34f80 0x49)
0x10bf78 : 0x2ab432 (0x49 0x11d97880 0x478 0x1)
0x10bfd8 : 0x2a1c2e (0x11d97880 0x2a2a00 0x0 0x2a2a5b)
Kernel Extensions in backtrace (with dependencies):
com.apple.driver.AppleMCEDriver(1.1.9)@0x87a37000->0x87a3cfff
dependency: com.apple.iokit.IOACPIFamily(1.3.0)@0x7d4e4000
com.apple.driver.AppleAPIC(1.4)@0x7d9bd000->0x7d9bffff
com.apple.driver.AppleACPIPlatform(1.3.6)@0x7d7a1000->0x7d7e3fff
dependency: com.apple.iokit.IOACPIFamily(1.3.0)@0x7d4e4000
dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x7d6ea000
BSD process name corresponding to current thread: SyncServicesAgen
Mac OS version:
10K549
Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun 7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386
System model name: MacPro3,1 (Mac-F42C88C8)
System uptime in nanoseconds: 11582709957670
unloaded kexts:
com.apple.iokit.IOFireWireSBP2 4.0.6 (addr 0x873d4000, size 0x69632) - last unloaded 5926980874388
loaded kexts:
Running 10.6.8 on a Mac Pro 3,1 (2008). Is this 32-bit kernel?
"Uncorrectable Fbd memory error detected." -- that is indeed usually a RAM memory error, but if this is not a current panic log, and you have changed memory three times since then, then this report is meaningless.
You were running two non-Apple kernel extensions at the time, which may contribute to instability:
- com.rogueamoeba.InstantOnCore 6.0.3
- com.rogueamoeba.InstantOn 6.0.3
You were running two non-Apple kernel extensions at the time, which may contribute to instability:
- com.rogueamoeba.InstantOnCore 6.0.3
- com.rogueamoeba.InstantOn 6.0.3
What do you think should I do about this?
Here is the latest KP report :
Mon Jan 20 12:15:07 2014
panic(cpu 0 caller 0x12a8e8b): "Uncorrectable Fbd memory error detected. FERR_NF = 0x00000020 , NERR_NF == 0x02000021\n"@/SourceCache/AppleMCEDriver/AppleMCEDriver-119.4.0/AppleMCEDriver .cpp:947
Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x10bc58 : 0x21b837 (0x5dd7fc 0x10bc8c 0x223ce1 0x0)
0x10bca8 : 0x12a8e8b (0x12a990c 0x20 0x2000021 0x8100a4)
0x10bd18 : 0x12a915d (0x10d91200 0x10d91200 0x2 0x820044)
0x10bd98 : 0xfc1a50 (0x10d91200 0x0 0x103dfc00 0x0)
0x10bdc8 : 0xfc0d09 (0x103cc580 0x0 0x0 0x1c)
0x10bde8 : 0xfcfebc (0x1c 0x10be5c 0x8 0xfcd5f0)
0x10be18 : 0xfd00be (0x103ca11c 0x17 0x103cc8be 0x0)
0x10be78 : 0xfd762e (0x102b7388 0x10bec8 0x10bef8 0x0)
0x10be98 : 0x56ac20 (0x102b7388 0x0 0x1020ed80 0x0)
0x10bee8 : 0x101d5bb (0x103cc600 0x0 0x103cc600 0x0)
0x10bf18 : 0xfb4213 (0x103c1800 0x0 0x0 0x49)
0x10bf38 : 0xfbf911 (0x49 0x0 0x10bf78 0x0)
0x10bf58 : 0x580d96 (0x103bca00 0x0 0x103bc680 0x49)
0x10bf78 : 0x2ab432 (0x49 0x8937bc70 0x875 0x1)
0x10bfd8 : 0x2a1c2e (0x8937bc70 0x2a2a00 0x0 0x2a2a5b)
0x8937bd08 : 0x225bba (0x0 0x43050342 0x165 0x84bf28)
0x8937bd68 : 0x22698c (0x1 0x12a3b000 0x10208c58 0x2a45c9)
0x8937bdd8 : 0x2275b0 (0x12a3b01c 0x0 0x8937be08 0xffffffff)
0x8937be48 : 0x227654 (0x210d84 0x0 0x0 0x12a3b000)
0x8937be68 : 0x211dc4 (0x210d84 0x7000006 0x800 0x0)
0x8937be98 : 0x2170bc (0x13fcdcf8 0x7000006 0x800 0x0)
0x8937bf18 : 0x295914 (0x8937bf44 0x0 0x0 0x0)
0x8937bfc8 : 0x2a20f8 (0x1298ebe0 0x0 0x10 0x14f830a0)
Kernel Extensions in backtrace (with dependencies):
com.apple.driver.AppleMCEDriver(1.1.9)@0x12a5000->0x12aafff
dependency: com.apple.iokit.IOACPIFamily(1.3.0)@0xbc5000
com.apple.driver.AppleAPIC(1.4)@0x101c000->0x101efff
com.apple.driver.AppleACPIPlatform(1.3.6)@0xfb2000->0xff4fff
dependency: com.apple.iokit.IOACPIFamily(1.3.0)@0xbc5000
dependency: com.apple.iokit.IOPCIFamily(2.6.5)@0x92d000
BSD process name corresponding to current thread: Google Chrome
Mac OS version:
10K549
Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun 7 16:33:36 PDT 2011; root:xnu-1504.15.3~1/RELEASE_I386
System model name: MacPro3,1 (Mac-F42C88C8)
System uptime in nanoseconds: 1534428100756
unloaded kexts:
com.apple.driver.AirPortBrcm43xx 423.91.27 (addr 0xda6000, size 0x1900544) - last unloaded 134161779693
loaded kexts:
The Mac Pro uses ECC DIMMs. eight extra check bits are generated on writes to memory. They are checked on every Read from memory. Double-bit errors are usually uncorrectable, and cause your Mac to halt on a kernel panic.
The check bits are arranged so that combinations of the bits can be used to determine which bit is in error when a single-bit error occurs. Hardware in the Xeon processor then corrects these errors with no slowdown. Later, software notes the error and flags the DIMM where the error has occurred. If you keep asking for a fresh report,
About this Mac > More Info > Memory .... can show you where the errors are occurring.
The above can be opened larger in a new window.
You now seem to have even more non-Apple kernel extensions. Methodical debugging of most kernel panics would have you remove them and try running without them to see if there were any difference.
- net.telestream.driver.TelestreamAudio 1.1.0
- com.techsmith.TACC 1.0.2
- com.rogueamoeba.InstantOnCore 6.0.3
- com.AmbrosiaSW.AudioSupport 4.0
- com.rogueamoeba.InstantOn 6.0.3
First, let me thank you for your patience and your help.
I am fairly new to this type of troubleshooting : how can I remove or otherwise disable these non-Apple kernel extentions?
As far as About this Mac > More Info > Memory goes, I see no errors.
RE: removing kernel extensions:
These must be addressed on a case-by-case basis, as each of these is installed by more than a simple drag-and-drop into the Applications folder. You will need to go to the site that provided the Installer and seek out the Un-Installer. Sometimes this requires a re-download to get the Installer and Uninstaller together.
RE: Not seeing errors (yet)
Each time you invoke the report, it will show the accumulated corrected errors (if any). You may get an advance warning of problems, you may not.
What it is showing is that you MAY have your DIMMs installed in a non-optimum way. In general, DIMMs should be in pairs. On later Macs, the recommendation has been to install the Densest DIMMs in lowest-numbered slots. That is not explicitly stated for your Mac.
Those rules would suggest that your 2GB DIMMs should be placed in slots 1 and 2 on each Riser.
8-page .pdf available by clicking this link:
Mac-Pro2008 FBDIMM installation Manual
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Those non-Apple kernel extentions are or where installed by software that, as far as I am aware of, worked very well on this system.
I removed three of the four you indicated. The AmbrosiaSW probably is a leftover from some video capture software I had as a trial and has been removed a while back. I cannot find
com.AmbrosiaSW.AudioSupport at all.
As for the DIMM placement, I think I correctly followed these instructions :
You should install FB-DIMMs in matched pairs of equal size and equal specification. Use the table below and the instructions that follow as guidelines for DIMM placement.
| If you have | Install |
| Two DIMMs (standard configuration) | One on the top memory card and one on the bottom card |
| Four DIMMs | One pair on the top memory card and one pair on the bottom card |
| Six DIMMs | Two pairs on the top memory card and one pair on the bottom card |
These instructions taken from http://http://support.apple.com/kb/ht4433#4 for the Mac Pro (early 2008)
Had two KPs since I last wrote. Having a hard time finding the non-Apple kernel extensions listed above. Removed applications related to Telestream, Ambrosia, but still can't find :
Looked into /user/PIDEJA/Library/Preferences and /user/Library/Application Support
Should I look else where?
Kernel Panic
