GC freeze when collecting old generation

h1. GC is freezing from time to time
h2. The application
JBoss 4.x with (approx 2000 threads) with ORACLE 10g(/RAC). The load is varying during the day,
but typically there is a high load for several hours (8h-12h), after that the system
is basically idle. The entire application is just plain java (no additional native dll's).
h2. The Problem -> GC Freeze
The application server is rebooted once every week. Collecting the old generation takes typically less than 2 secs. However,
sometimes (after days) we experience extensive GC times when collecting the old generation:
Typically the major portion of the delay is found in the following phases:
*[summary phase, 8.9943085 secs]*
*[post compact, 29.4723376 secs]*
Total time for which application threads were stopped: 43.3590538 seconds
h2. JVM (java –version)
java version "1.6.0_24"
Java(TM) SE Runtime Environment (build 1.6.0_24-b07)
Java HotSpot(TM) Client VM (build 19.1-b02, mixed mode)
h2. The hardware/OS
OS: Microsoft Windows XP Service Pack 2 (build 3790) (64bit)
CPU: Intel(R) Xeon(R) CPU 8X E5530 @ 2.40GHz (Hyper Threading Enabled), RAM: 4078 Mb total
h2. GC Settings
-Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000
-server -Xmx1580m -Xms1580m -Xmn800m
-Xss128k-XX:ThreadStackSize=128
-XX:+UseParallelGC
-XX:ParallelGCThreads=7
-XX:+UseParallelOldGC
-XX:-UseAdaptiveSizePolicy -XX:+ExplicitGCInvokesConcurrent
-XX:MaxGCPauseMillis=50 -XX:SurvivorRatio=6 -XX:MaxTenuringThreshold=30
-XX:PermSize=96m -XX:MaxPermSize=96m
-XX:+PrintParallelOldGCPhaseTimes -XX:+PrintHeapAtGC -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCApplicationStoppedTim
h4. 1. Can someone shed some light on the summary and post compact phase? Which steps are taken by the JVM here?
What might take so long?
h4. 2. I observed, that the JVM memory footprint (perfmon/private bytes of the JVM) is temporally increasing and the total memory usage
goes from 2.2 up to 3.0 GB. This additional memory is allocated on the C++ heap! For what? Why does a JVM temporally allocate
so much memory on the C++ heap (the application is just plain java).
h4. 3. Can the root cause for the intensive “post compacting” times be fragmentation of the java heap.
The documenation indicates that fragmentation of the old generation is possible:
"Each garbage collection thread reserves a part of the tenured generation for promotions and
the division of the available space into these "promotion buffers" can cause a
fragmentation effect."
Is there a simple way monitor/log the fragementation of the java heap?
h4. 4. Is there a known Bug bug in java version "1.6.0_24" that can cause this freeze?
Thanks for any help!*
---- GC snippet
2012-01-31T07:39:32.350-0500: 329853.039: [GC [PSYoungGen: 716798K->102393K(716800K)] 1475117K->879812K(1515520K), 0.0614928 secs] [Times: user=0.44 sys=0.00, real=0.06 secs]
Heap after GC invocations=28726 (full 187):
PSYoungGen total 716800K, used 102393K [0xb6bf0000, 0xe8bf0000, 0xe8bf0000)
eden space 614400K, 0% used [0xb6bf0000,0xb6bf0000,0xdc3f0000)
from space 102400K, 99% used [0xe27f0000,0xe8bee458,0xe8bf0000)
to space 102400K, 0% used [0xdc3f0000,0xdc3f0000,0xe27f0000)
ParOldGen total 798720K, used 777419K [0x85ff0000, 0xb6bf0000, 0xb6bf0000)
object space 798720K, 97% used [0x85ff0000,0xb5722cc8,0xb6bf0000)
PSPermGen total 98304K, used 77426K [0x7fff0000, 0x85ff0000, 0x85ff0000)
object space 98304K, 78% used [0x7fff0000,0x84b8cbc8,0x85ff0000)
Total time for which application threads were stopped: 0.0668004 seconds
{Heap before GC invocations=28727 (full 187):
PSYoungGen      total 716800K, used 716793K [0xb6bf0000, 0xe8bf0000, 0xe8bf0000)
eden space 614400K, 100% used [0xb6bf0000,0xdc3f0000,0xdc3f0000)
from space 102400K, 99% used [0xe27f0000,0xe8bee458,0xe8bf0000)
to   space 102400K, 0% used [0xdc3f0000,0xdc3f0000,0xe27f0000)
ParOldGen       total 798720K, used 777419K [0x85ff0000, 0xb6bf0000, 0xb6bf0000)
object space 798720K, 97% used [0x85ff0000,0xb5722cc8,0xb6bf0000)
PSPermGen       total 98304K, used 77426K [0x7fff0000, 0x85ff0000, 0x85ff0000)
object space 98304K, 78% used [0x7fff0000,0x84b8cbc8,0x85ff0000)
h2. *2012-01-31T07:39:37.740-0500: 329858.432: [GC-- [PSYoungGen: 716793K->716793K(716800K)] 1494212K->1515510K(1515520K), 3.9532929 secs] [Times: user=0.72 sys=0.03, real=3.95 secs]*
Heap after GC invocations=28727 (full 187):
PSYoungGen total 716800K, used 716793K [0xb6bf0000, 0xe8bf0000, 0xe8bf0000)
eden space 614400K, 100% used [0xb6bf0000,0xdc3f0000,0xdc3f0000)
from space 102400K, 99% used [0xe27f0000,0xe8bee458,0xe8bf0000)
to space 102400K, 99% used [0xdc3f0000,0xe27efee0,0xe27f0000)
ParOldGen total 798720K, used 798717K [0x85ff0000, 0xb6bf0000, 0xb6bf0000)
object space 798720K, 99% used [0x85ff0000,0xb6bef670,0xb6bf0000)
PSPermGen total 98304K, used 77426K [0x7fff0000, 0x85ff0000, 0x85ff0000)
object space 98304K, 78% used [0x7fff0000,0x84b8cbc8,0x85ff0000)
329862.386: [pre compact{Heap before GC invocations=28728 (full 188):
PSYoungGen      total 716800K, used 716793K [0xb6bf0000, 0xe8bf0000, 0xe8bf0000)
eden space 614400K, 100% used [0xb6bf0000,0xdc3f0000,0xdc3f0000)
from space 102400K, 99% used [0xe27f0000,0xe8bee458,0xe8bf0000)
to   space 102400K, 99% used [0xdc3f0000,0xe27efee0,0xe27f0000)
ParOldGen       total 798720K, used 798717K [0x85ff0000, 0xb6bf0000, 0xb6bf0000)
object space 798720K, 99% used [0x85ff0000,0xb6bef670,0xb6bf0000)
PSPermGen       total 98304K, used 77426K [0x7fff0000, 0x85ff0000, 0x85ff0000)
object space 98304K, 78% used [0x7fff0000,0x84b8cbc8,0x85ff0000)
, 0.0003397 secs]
h2. *2012-01-31T07:39:41.694-0500: 329862.386: [Full GC329862.388: [marking phase329862.388: [par mark, 0.5320380 secs]*
329862.921: [reference processing, 0.0051108 secs]
329862.926: [class unloading, 0.0369949 secs]
, 0.5742662 secs]
*329862.963: [summary phase, 8.9943085 secs]*
329871.957: [adjust roots, 0.0357495 secs]
329871.993: [compact perm gen, 0.0782944 secs]
329872.071: [compaction phase329872.071: [drain task setup, 0.0006238 secs]
329872.072: [dense prefix task setup, 0.0000046 secs]
329872.072: [steal task setup, 0.0000005 secs]
329872.072: [par compact, 0.2223263 secs]
329872.295: [deferred updates, 0.0189229 secs]
, 0.2421987 secs]
*329872.313: [post compact, 29.4723376 secs]*
h2. [PSYoungGen: 716793K->0K(716800K)] [ParOldGen: 798717K->335346K(798720K)] 1515510K->335346K(1515520K) [PSPermGen: 77426K->77422K(98304K)], 39.3998183 secs] [Times: user=3.53 sys=0.16, real=39.39 secs]
Heap after GC invocations=28728 (full 188):
PSYoungGen total 716800K, used 0K [0xb6bf0000, 0xe8bf0000, 0xe8bf0000)
eden space 614400K, 0% used [0xb6bf0000,0xb6bf0000,0xdc3f0000)
from space 102400K, 0% used [0xe27f0000,0xe27f0000,0xe8bf0000)
to space 102400K, 0% used [0xdc3f0000,0xdc3f0000,0xe27f0000)
ParOldGen total 798720K, used 335346K [0x85ff0000, 0xb6bf0000, 0xb6bf0000)
object space 798720K, 41% used [0x85ff0000,0x9a76c838,0xb6bf0000)
PSPermGen total 98304K, used 77422K [0x7fff0000, 0x85ff0000, 0x85ff0000)
object space 98304K, 78% used [0x7fff0000,0x84b8ba08,0x85ff0000)
h2. Total time for which application threads were stopped: 43.3590538 seconds
Total time for which application threads were stopped: 0.0180008 seconds

Intensive GC times when collecting the old generation with parallelOldGC. Locking.

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Intensive GC times when collecting the old generation with parallelOldGC

h1. We are experiencing some very strange GC times
h2. The hardware/OS
OS: Microsoft Windows XP Service Pack 2 (build 3790) (64bit)
CPU: Intel(R) Xeon(R) CPU 8X E5530 @ 2.40GHz (Hyper Threading Enabled)
RAM: 4078 Mb total
h2. The application
JBoss 4.x with (approx 2000 threads) with ORACLE 10g(/RAC). The load varying during the day,
but typically there is a high load for several hours (8h-12h), after that the system
is basically idle. The entire application is just plain java (no additional native dll's).
h2. JVM (java –version)
java version "1.6.0_24"
Java(TM) SE Runtime Environment (build 1.6.0_24-b07)
Java HotSpot(TM) Client VM (build 19.1-b02, mixed mode)
h2. GC Settings
-Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000
-server -Xmx1580m -Xms1580m -Xmn800m
-Xss128k-XX:ThreadStackSize=128
-XX:+UseParallelGC
-XX:ParallelGCThreads=7
-XX:+UseParallelOldGC
-XX:-UseAdaptiveSizePolicy -XX:+ExplicitGCInvokesConcurrent
-XX:MaxGCPauseMillis=50 -XX:SurvivorRatio=6 -XX:MaxTenuringThreshold=30
-XX:PermSize=96m -XX:MaxPermSize=96m
-XX:+PrintParallelOldGCPhaseTimes -XX:+PrintHeapAtGC -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCApplicationStoppedTim
h2. The problem
The application server is rebooted once every week. Typically the application runs without any a bigger (> 2 sec) delay
when the old generation is collected. However, sometimes (after days) we experience extensive GC times when collecting
the old generation:
Typically the major portion of the delay is found in the
*[summary phase, 8.9943085 secs]*
*[post compact, 29.4723376 secs]*
h4. 1. Can someone shed some light on the summary and post compact phase? Which steps are taken by the JVM here?
What might take so long here?
h4. 2. I observed, that the JVM memory footprint (private bytes of process) is temporally increasing and the total memory increaase
goes from 2.2 up to 3.0 GB. This additional mAemory is allocated on the C++ heap! For what? Why does a JVM temporally allocate
so much memory on the from the C++ heap (the application is just plain java).
h4. 3. Can the root cause for the intensive “post compacting” times be fragmentation of the java heap.
To my understanding the GC settings (parallel Old GC) prevents fragmentation of the java-heap
it is this correct?
h4. 4. A bug in java version "1.6.0_24".
---- GC snippet
Total time for which application threads were stopped: 0.0813657 seconds
{Heap before GC invocations=28725 (full 187):
PSYoungGen      total 716800K, used 716787K [0xb6bf0000, 0xe8bf0000, 0xe8bf0000)
eden space 614400K, 100% used [0xb6bf0000,0xdc3f0000,0xdc3f0000)
from space 102400K, 99% used [0xe27f0000,0xe8becff0,0xe8bf0000)
to   space 102400K, 0% used [0xdc3f0000,0xdc3f0000,0xe27f0000)
ParOldGen       total 798720K, used 753030K [0x85ff0000, 0xb6bf0000, 0xb6bf0000)
object space 798720K, 94% used [0x85ff0000,0xb3f51840,0xb6bf0000)
PSPermGen       total 98304K, used 77426K [0x7fff0000, 0x85ff0000, 0x85ff0000)
object space 98304K, 78% used [0x7fff0000,0x84b8cbc8,0x85ff0000)
2012-01-31T07:39:25.928-0500: 329846.622: [GC [PSYoungGen: 716787K->102398K(716800K)] 1469818K->860717K(1515520K), 0.0563113 secs] [Times: user=0.44 sys=0.02, real=0.06 secs]
Heap after GC invocations=28725 (full 187):
PSYoungGen total 716800K, used 102398K [0xb6bf0000, 0xe8bf0000, 0xe8bf0000)
eden space 614400K, 0% used [0xb6bf0000,0xb6bf0000,0xdc3f0000)
from space 102400K, 99% used [0xdc3f0000,0xe27efad0,0xe27f0000)
to space 102400K, 0% used [0xe27f0000,0xe27f0000,0xe8bf0000)
ParOldGen total 798720K, used 758318K [0x85ff0000, 0xb6bf0000, 0xb6bf0000)
object space 798720K, 94% used [0x85ff0000,0xb447b968,0xb6bf0000)
PSPermGen total 98304K, used 77426K [0x7fff0000, 0x85ff0000, 0x85ff0000)
object space 98304K, 78% used [0x7fff0000,0x84b8cbc8,0x85ff0000)
Total time for which application threads were stopped: 0.0613045 seconds
{Heap before GC invocations=28726 (full 187):
PSYoungGen      total 716800K, used 716798K [0xb6bf0000, 0xe8bf0000, 0xe8bf0000)
eden space 614400K, 100% used [0xb6bf0000,0xdc3f0000,0xdc3f0000)
from space 102400K, 99% used [0xdc3f0000,0xe27efad0,0xe27f0000)
to   space 102400K, 0% used [0xe27f0000,0xe27f0000,0xe8bf0000)
ParOldGen       total 798720K, used 758318K [0x85ff0000, 0xb6bf0000, 0xb6bf0000)
object space 798720K, 94% used [0x85ff0000,0xb447b968,0xb6bf0000)
PSPermGen       total 98304K, used 77426K [0x7fff0000, 0x85ff0000, 0x85ff0000)
object space 98304K, 78% used [0x7fff0000,0x84b8cbc8,0x85ff0000)
2012-01-31T07:39:32.350-0500: 329853.039: [GC [PSYoungGen: 716798K->102393K(716800K)] 1475117K->879812K(1515520K), 0.0614928 secs] [Times: user=0.44 sys=0.00, real=0.06 secs]
Heap after GC invocations=28726 (full 187):
PSYoungGen total 716800K, used 102393K [0xb6bf0000, 0xe8bf0000, 0xe8bf0000)
eden space 614400K, 0% used [0xb6bf0000,0xb6bf0000,0xdc3f0000)
from space 102400K, 99% used [0xe27f0000,0xe8bee458,0xe8bf0000)
to space 102400K, 0% used [0xdc3f0000,0xdc3f0000,0xe27f0000)
ParOldGen total 798720K, used 777419K [0x85ff0000, 0xb6bf0000, 0xb6bf0000)
object space 798720K, 97% used [0x85ff0000,0xb5722cc8,0xb6bf0000)
PSPermGen total 98304K, used 77426K [0x7fff0000, 0x85ff0000, 0x85ff0000)
object space 98304K, 78% used [0x7fff0000,0x84b8cbc8,0x85ff0000)
Total time for which application threads were stopped: 0.0668004 seconds
{Heap before GC invocations=28727 (full 187):
PSYoungGen      total 716800K, used 716793K [0xb6bf0000, 0xe8bf0000, 0xe8bf0000)
eden space 614400K, 100% used [0xb6bf0000,0xdc3f0000,0xdc3f0000)
from space 102400K, 99% used [0xe27f0000,0xe8bee458,0xe8bf0000)
to   space 102400K, 0% used [0xdc3f0000,0xdc3f0000,0xe27f0000)
ParOldGen       total 798720K, used 777419K [0x85ff0000, 0xb6bf0000, 0xb6bf0000)
object space 798720K, 97% used [0x85ff0000,0xb5722cc8,0xb6bf0000)
PSPermGen       total 98304K, used 77426K [0x7fff0000, 0x85ff0000, 0x85ff0000)
object space 98304K, 78% used [0x7fff0000,0x84b8cbc8,0x85ff0000)
2012-01-31T07:39:37.740-0500: 329858.432: [GC-- [PSYoungGen: 716793K->716793K(716800K)] 1494212K->1515510K(1515520K), 3.9532929 secs] [Times: user=0.72 sys=0.03, real=3.95 secs]
Heap after GC invocations=28727 (full 187):
PSYoungGen total 716800K, used 716793K [0xb6bf0000, 0xe8bf0000, 0xe8bf0000)
eden space 614400K, 100% used [0xb6bf0000,0xdc3f0000,0xdc3f0000)
from space 102400K, 99% used [0xe27f0000,0xe8bee458,0xe8bf0000)
to space 102400K, 99% used [0xdc3f0000,0xe27efee0,0xe27f0000)
ParOldGen total 798720K, used 798717K [0x85ff0000, 0xb6bf0000, 0xb6bf0000)
object space 798720K, 99% used [0x85ff0000,0xb6bef670,0xb6bf0000)
PSPermGen total 98304K, used 77426K [0x7fff0000, 0x85ff0000, 0x85ff0000)
object space 98304K, 78% used [0x7fff0000,0x84b8cbc8,0x85ff0000)
329862.386: [pre compact{Heap before GC invocations=28728 (full 188):
PSYoungGen      total 716800K, used 716793K [0xb6bf0000, 0xe8bf0000, 0xe8bf0000)
eden space 614400K, 100% used [0xb6bf0000,0xdc3f0000,0xdc3f0000)
from space 102400K, 99% used [0xe27f0000,0xe8bee458,0xe8bf0000)
to   space 102400K, 99% used [0xdc3f0000,0xe27efee0,0xe27f0000)
ParOldGen       total 798720K, used 798717K [0x85ff0000, 0xb6bf0000, 0xb6bf0000)
object space 798720K, 99% used [0x85ff0000,0xb6bef670,0xb6bf0000)
PSPermGen       total 98304K, used 77426K [0x7fff0000, 0x85ff0000, 0x85ff0000)
object space 98304K, 78% used [0x7fff0000,0x84b8cbc8,0x85ff0000)
, 0.0003397 secs]
2012-01-31T07:39:41.694-0500: 329862.386: [Full GC329862.388: [marking phase329862.388: [par mark, 0.5320380 secs]
329862.921: [reference processing, 0.0051108 secs]
329862.926: [class unloading, 0.0369949 secs]
, 0.5742662 secs]
*329862.963: [summary phase, 8.9943085 secs]*
329871.957: [adjust roots, 0.0357495 secs]
329871.993: [compact perm gen, 0.0782944 secs]
329872.071: [compaction phase329872.071: [drain task setup, 0.0006238 secs]
329872.072: [dense prefix task setup, 0.0000046 secs]
329872.072: [steal task setup, 0.0000005 secs]
329872.072: [par compact, 0.2223263 secs]
329872.295: [deferred updates, 0.0189229 secs]
, 0.2421987 secs]
*329872.313: [post compact, 29.4723376 secs]*
[PSYoungGen: 716793K->0K(716800K)] [ParOldGen: 798717K->335346K(798720K)] 1515510K->335346K(1515520K) [PSPermGen: 77426K->77422K(98304K)], 39.3998183 secs] [Times: user=3.53 sys=0.16, real=39.39 secs]
Heap after GC invocations=28728 (full 188):
PSYoungGen total 716800K, used 0K [0xb6bf0000, 0xe8bf0000, 0xe8bf0000)
eden space 614400K, 0% used [0xb6bf0000,0xb6bf0000,0xdc3f0000)
from space 102400K, 0% used [0xe27f0000,0xe27f0000,0xe8bf0000)
to space 102400K, 0% used [0xdc3f0000,0xdc3f0000,0xe27f0000)
ParOldGen total 798720K, used 335346K [0x85ff0000, 0xb6bf0000, 0xb6bf0000)
object space 798720K, 41% used [0x85ff0000,0x9a76c838,0xb6bf0000)
PSPermGen total 98304K, used 77422K [0x7fff0000, 0x85ff0000, 0x85ff0000)
object space 98304K, 78% used [0x7fff0000,0x84b8ba08,0x85ff0000)
Total time for which application threads were stopped: *43.3590538 seconds*
Total time for which application threads were stopped: 0.0180008 seconds

Thanks for the reply. The tuning guide does not detail the different phases
when collecting the old generation, but it has some information regarding fragmentation:
"Turning on the throughput collector should just make the minor collection
pauses shorter. Because there are multiple garbage collector threads
participating in the minor collection there is a *small possibility of fragmentation*
due to promotions from the young generation to the tenured generation
during the collection. Each garbage collection thread reserves
*a part of the tenured generation for promotions* and the division of the
available space into these "promotion buffers" can cause a fragmentation effect."
Are increased "post compacting" times are a clear indication for fragmentation
of the tenured generation?

How to specify when Full Garbage Collections occur in the Old Generation

Hi. We seem to be having a problem with a number of JVMs (1.5.0_17-b04) that run a component of a Document Management application. This component stores a large amount of information in caches which reside in the Old Generation. Although these cache sizes can be somewhat controlled by the application, they are currently taking about 85% of the Old Generation space. Fortunately, very few objects get tenured into the Old Generation - they all are cleaned up in the New Generation space.
The problem we are seeing is that with the Old Generation at 85% full, there are constant full GC's occurring. Since the caches cannot be removed, the system frantically tries to remove objects that can't be removed.
We have three solutions in mind. The first is to increase the memory allocation to the Old Generation so that the caches take a smaller percentage of the available memory allocation. The second would be to decrease the size of the caches; but this is set more by the number of documents in the application and cannot be made much smaller.
The third solution is to configure the JVM so that Garbage Collections in the Old Generation do not occur until the memory is more than a specific percentage of memory in the Old Generation. We would then set this percentage to be higher than the amount of memory being used by the caches.
So, is it possible to tell the JVM to only run a Full GC when the memory in the Old Generation is greater than a specific value (say 85% full)?
Thanks for your help.
Andre Fischer.

afischer wrote:
The third solution is to configure the JVM so that Garbage Collections in the Old Generation do not occur until the memory is more than a specific percentage of memory in the Old Generation. We would then set this percentage to be higher than the amount of memory being used by the caches.
So, is it possible to tell the JVM to only run a Full GC when the memory in the Old Generation is greater than a specific value (say 85% full)?Switch to the CMS collector.
-XX:+UseConcMarkSweepGC
-XX:CMSInitiatingOccupancyFraction=86

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I am using Window Vista 32bit and have the same problem. After trying uninstall, reinstall, ccclean registry, over and over again and still cannot install itune 10.5. And finally concluded that this might be a registry corruption problem. The following steps is what I did to fix the registry isssue and get my itune 10.5 installed.
- Run Window update - and check the history file, if you see some failures in previous updates, there is something wrong with the registry.
- un-install all the apple related software (itune, safari, boujour, apple update, etc).
- For Vista 32bit, go to the following link and run the script to clean up the registry. I am not sure if other WIndow OS will work or not.
http://windows.microsoft.com/en-US/windows-vista/Windows-Update-Error-8000FFFF
- run the Fix-it script. you have to select the Agressive mode (even thou the pop up window advise not to do this) in order to clean up the registry. When I try without checking the box, and it did not fix the problem.
- reboot PC
- Run window update. It will discover a lot of old updates that need to be installed (I suspect that the fix it script delete a lot of stuff in the registry and removed previous updates). I got 53 updates that need to install.
- run the update and wait for a longtime (mine took ~2 hours).
- reboot PC
- run cccleaner
- reboot PC
- install itune 10.5
Now it works. Hopefully other window OS has similar step to fix this. I can only say it works for me using window Vista 32bit. and so far, my PC works correctly.

I have an old generation Apple TV 160GB when trying to rent I get a message that I have to authorize my account information on my computer via iTunes...There is no problem with my account info how is this done?

I have an old generation Apple TV 160GB when trying to rent I get a message that I have to authorize my account information on my computer via iTunes...There is no problem with my account info how is this done?

stf10 wrote:
... trying to move my I tunes to my ny PC. ...
From where are you trying to move your iTunes...

Ipod nano 4 th generation freezes when i put nike connector

ipod nano 4 th generation freezes when i put nike connector. please help! I restarted, i updated, i restored it!
thanks!

First, try a system reset. It cures many ills and it's quick, easy and harmless...
Hold down the on/off switch and the Home button simultaneously until the screen blacks out or you see the Apple logo. Ignore the "Slide to power off" text if it appears. You will not lose any apps, data, music, movies, settings, etc.
If the Reset doesn't work, try a Restore. Note that it's nowhere near as quick as a Reset. Connect via cable to the computer that you use for sync. From iTunes, select the iPad/iPod and then select the Summary tab. Follow directions for Restore and be sure to say "yes" to the backup. You will be warned that all data (apps, music, movies, etc.) will be erased but, as the Restore finishes, you will be asked if you wish the contents of the backup to be copied to the iPad/iPod. Again, say "yes."
At the end of the basic Restore, you will be asked if you wish to sync the iPad/iPod. As before, say "yes." Note that that sync selection will disappear and the Restore will end if you do not respond within a reasonable time. If that happens, only the apps that are part of the IOS will appear on your device. Corrective action is simple - choose manual "Sync" from the bottom right of iTunes.
If you're unable to do the Restore, go into Recovery Mode per the instructions here.

BLACK SCREEN startup with 3 beeps, FREEZES when unplugged, Splash screen freeze, HEAT-UP TO BOOT

BLACK SCREEN startup with 3 beeps, FREEZES when power unplugged, IF IT BOOTS splash screen freezes, OVERHEATING REQUIRED TO BOOT - 0x7B, Event 41 kernel-powe
Issue: One day I unplug the power, the screen freezes and I get frozen music sound. I shut down, start up, I get 3 beeps (1 short 2 long), which indicates a Video failure according to the Thinkpad Laptop beep code list.
How I solve the issue day-to-day: I turn the heat up - I disconnect the battery and hard drive and plug in the power then turn it on. I will wait until the underneath is searing hot with a blanket blocking the fan's flow of air, I mean way hot because any cooler and it won't start. Plug stuff back in, Hard drive first, Battery second, turn off with power button hold, unplug power, replug power.
I turn it on, no beeps, it goes past the first Lenovo screen, then gives me a prompt because it "didn't shut down properly" and continue regular startup. What happens next is the Windows logo appears, and just as the animated windows logo starts to move (you see 2 small colored dots on the screen), it freezes. I see this every time, I know naturally that it means that the laptop is still too hot to go past that point, so I shut it down and try again. After about 5 - 10 tries it will go past the splash screen and into the login area, then it's all fine.
Sometimes when I unplug the power from the back by accident it will freeze. By accident I mean that the connector wiggles it's self out easily. This unplug freezing thing started happening about 1 week before the 3 beep black screen problem started rolling, so I'm putting 2 together.
Errors:
I got a Blue Screen of Death the first time I started it up with the overheating ritual, but I never got it since. It was 0X7B. I ended up changing a setting in BIOS from AHCI to Compatibility Mode, and I passed everything without the BSOD again. I have always had it on AHCI.
I got another Blue Screen of Death about a week ago, but came as it was on already and I had been using it, and said something about disabling Cache or Shadowing in BIOS. I never got it since.
BIOS:
Also, the time was set to 1988 or something in the BIOS.
Event Viewer events found:
1. Kernel-Power, Summary page.
There are critical events for a few things like Kernel-Power, Event ID 41, Task Category (63). There are 19 of them, each day 1 or 2 of them but mostly 1, so this maybe corresponds to my daily ritual.
"The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly."
2. Kernel-Processor-Power - Event ID 37, task category (7)
"The speed of processor 1 in group 0 is being limited by system firmware. The processor has been in this reduced performance state for 71 seconds since the last report."
3. LMS - HCMI - Event ID 2, Task Category: none
"LMS Service cannot connect to HECI driver".
I came across a very sluggish performing control panel for Nvidia before and after this problem, and I tried installing a newer version, which I had to jump through a few hoops to do, like uninstalling first, not just updating. At first it said that the driver wasnt made for the system, or that it wasnt compatible or something, which was wrong. I made it work somehow, but it was still sluggish after install. I rolled it back to an earlier driver, and now it works fine oddly. No sluggish performance / slight freeze window thing going on. No problem at all.
MSCONFIG.exe, Boot Advanced Options: I have tried twice to change this 1 setting, check box "Number of processors" and change to 2 processors, because I do have 2 processors. I have been able to change this in the past, but it does not save the setting now, and I believe this option was selected before I started having problems, and settings did not disappear then.
What could this be. The small round BIOS battery? The video card like everyone presumes? (I.E. the entire motherboard replacement), Software? The wiggly power input area? (Not enough power getting in?), Firmware of some sort? The BIOS software being wrong?
SYSTEM INFO:
Thinkpad T61p 6457-A24, Intel core 2 duo (T7700) 2.4GHz, Intel 120GB SSD 6Gb/s, NVIDIA Quadro FX 570M (256 MB),
Windows 7 64 bit Home Premium (6.1, Build 7601), BIOS Ver 1.00PARTTBLx
Display: 1680 x 1050 (32 bit 60 Hz), Integrated RAMDAC, Main driver: nvd3dumx.dll,nvwgf2umx,nvwgf2,
Version 8.17.12.9688, Date 5/31/2012, DDI version 10, Driver model WDDM 1.1

T61-Elwood wrote:
Laptops of all Brands using Nvidia GPUsmade from 2007-2008 are faulty.
You wont get good Nvidia ones on Ebay/forumes anywhere.
I'd beg to differ on both accounts.
*61 series nVidia-based ThinkPads from late January through July of 2008 are a 50/50 shot, since the old chips were mixed with the new ones. Any machine built in August and later can be deemed "safe".
As for the forums (I don't do feebay) there are people who sell genuine, properly-tested planars. However, these do not come at bargain basement prices, and with a good reason if I may add.
Good luck.
Cheers,
George
In daily use: R60F, R500F, T61, T410
Collecting dust: T60
Enjoying retirement: A31p, T42p,
Non-ThinkPads: Panasonic CF-31 & CF-52, HP 8760W
Starting Thursday, 08/14/2014 I'll be away from the forums until further notice. Please do NOT send private messages since I won't be able to read them. Thank you.

Mail freezes when updating large RSS feed boxes

This is something I encountered and how I have formulated a work around. I have discovered that Mail will freeze when updating large RSS feed boxes.
A little history. After discovery RSS and how they work, I began building a collection of feeds. They included feeds from many major news providers. Over the years, the number articles form some of these sources went into the thousands.
As my database of articles grew, I encountered more severe and more frequent freezes of the application Mail. I began to take the computer off-line in order to work in these files. But inevitably, a situation would arise that would lead to the Mail application freezing.
Isolation of the issue with Mail and to the RSS boxes within Mail. The freeze would not occur when RSS feeds boxes where collapsed. Also, the freeze only affected the Mail application. Mac OS was not affected and I was able to alway close Mail from with in the Force Quit menu. Also, the Force Quit menu affirmed that Mail was indeed frozen by listing it as also "not responding."
Work around. To resolve this issue, I first choose to remove the number of RSS feed that I had subscribed to but used very infrequently. Second, I choose to delete old feeds from "never" to "every two weeks" from within the Mail preference menu (RSS sub-menu).
I think it took a while for Mail to fully delete messages older than two weeks. In fact, when I began deleting whole feeds, it took some time for those feeds to be removed from my mail box tree. Within the Activity Monitor application, I could see that a lot of disk use was occurring, even though the OS was allowing me to continue to use Mail and other applications.
To assist this process, I took my computer off-line and stepped away from it. Upon my return, the disk use was down to normal, the number of article in many RSS boxes where greatly reduced, and my disk had recovered over a GB of space. Also, Mail seems to be behaving properly, with smooth and quick performance.
If you found this article, I hope the information provided has been helpful! After a quick search in to previous posts, an entirely similar post was not found. However, others are finding the Mail application will freeze, but not necessary for the same reason.

Since I don't want to download any attachments from RSS feeds in Mail.app, is there any way to turn off the attachment download once and for all? I also get the beach ball for minutes when an item has a big attachment, and I fear my HD is cluttered with files I don't use.

Itunes 11.4 freezing when ipod touch 5 connected to windows 7 64bit

Every time the iPod touch 5th generation is connected to ITunes in Windows 7 64 bit, the stupid iTunes freezes. The only way to unfreeze is to disconnect it. This problem has been going for a very long time. Upgrading iTunes does nothing. ITunes 11.4 does not fix the problem. There is no way to sync iPod touch with windows 7. This getting very frustrating. When is someone going to post a fix that permanently fixes this problem that has existed for a long time. Anyone got a brain that works?
A few months ago someone posted a fix that required to disable a windows update that work for a while. Now iTunes is back to its old freezing behaviors. Fix it Apple now!..

This is a useless reply. It does not work. Uninstalling and reinstalling does nothing to fix it. Itunes always freezes when Ipod is connected. This is a problem with Windows 7 64bit and is very common problem. Itunes doesn't want to cooperate with 64bit windows. If you search the internet, lots are having the same problem. This problem has existed for 10 years. Every new version of itunes never fixes the problem. Why can't Apple and Microsoft work together to fix the issue. This is unacceptable. Apple software designers are very lazy and stupid.

Continuous Full GC even though Old Generation is not filled up.

Every few days we see continuous Full GC (more than 1000 FullGC's) and then the application comes to normal...the verbose GC log is as below .. when it is doing Full GC, the old generation is not filled up.. but what is prompting this Full Gc??
Environment/Settings
JDK 1.6
Memory Settings -Xms256M -Xmx2048M -XX:MaxPermSize=512M
Attaching to process ID 25118, please wait... Debugger attached successfully. Server compiler detected. JVM version is 14.3-b01
using thread-local object allocation. Parallel GC with 8 thread(s)
Heap Configuration:
MinHeapFreeRatio = 40
MaxHeapFreeRatio = 70
MaxHeapSize = 2147483648 (2048.0MB)
NewSize = 2686976 (2.5625MB)
MaxNewSize = 17592186044415 MB
OldSize = 5439488 (5.1875MB)
NewRatio = 2
SurvivorRatio = 8
PermSize = 21757952 (20.75MB)
MaxPermSize = 536870912 (512.0MB)
Partial Verbose GC logs, when the continuous Full GC starts.
=====================================
404006.016: [GC [PSYoungGen: 242756K->10659K(249408K)] 609285K->378416K(825536K), 0.0244300 secs] [Times: user=0.09 sys=0.00, real=0.03 secs]
404126.211: [GC [PSYoungGen: 239715K->11421K(250624K)] 607472K->379300K(826752K), 0.0314540 secs] [Times: user=0.08 sys=0.01, real=0.03 secs]
404498.907: [GC [PSYoungGen: 241181K->15113K(250816K)] 609060K->383750K(826944K), 0.0567160 secs] [Times: user=0.11 sys=0.00, real=0.06 secs]
404559.340: [GC [PSYoungGen: 81552K->9784K(250688K)] 450190K->378571K(826816K), 0.0255340 secs] [Times: user=0.08 sys=0.01, real=0.03 secs]
404559.366: [Full GC (System) [PSYoungGen: 9784K->0K(250688K)] [PSOldGen: 368787K->225993K(576128K)] 378571K->225993K(826816K) [PSPermGen: 181648K->181648K(187968K)], 1.4180830 secs] [Times: user=1.42 sys=0.00, real=1.42 secs]
404560.791: [GC [PSYoungGen: 1155K->64K(251072K)] 227148K->226057K(827200K), 0.0141730 secs] [Times: user=0.03 sys=0.02, real=0.01 secs]
404560.806: [Full GC (System) [PSYoungGen: 64K->0K(251072K)] [PSOldGen: 225993K->202050K(576128K)] 226057K->202050K(827200K) [PSPermGen: 181648K->178996K(185216K)], 1.5066450 secs] [Times: user=1.50 sys=0.00, real=1.51 secs]
404562.329: [GC [PSYoungGen: 1351K->272K(252032K)] 203401K->202322K(828160K), 0.0129750 secs] [Times: user=0.03 sys=0.01, real=0.01 secs]
404562.342: [Full GC (System) [PSYoungGen: 272K->0K(252032K)] [PSOldGen: 202050K->202125K(576128K)] 202322K->202125K(828160K) [PSPermGen: 178996K->178996K(184512K)], 1.3184310 secs] [Times: user=1.32 sys=0.00, real=1.32 secs]
404563.674: [GC [PSYoungGen: 1146K->128K(253312K)] 203271K->202253K(829440K), 0.0106520 secs] [Times: user=0.02 sys=0.01, real=0.01 secs]
404563.685: [Full GC (System) [PSYoungGen: 128K->0K(253312K)] [PSOldGen: 202125K->202126K(576128K)] 202253K->202126K(829440K) [PSPermGen: 178997K->178997K(184000K)], 1.3197180 secs] [Times: user=1.32 sys=0.00, real=1.32 secs]
404565.025: [GC [PSYoungGen: 1146K->64K(254976K)] 203272K->202190K(831104K), 0.0152030 secs] [Times: user=0.03 sys=0.01, real=0.01 secs]
404565.041: [Full GC (System) [PSYoungGen: 64K->0K(254976K)] [PSOldGen: 202126K->202126K(576128K)] 202190K->202126K(831104K) [PSPermGen: 178997K->178997K(183296K)], 1.3072740 secs] [Times: user=1.31 sys=0.00, real=1.31 secs]
404566.355: [GC [PSYoungGen: 1151K->160K(255360K)] 203278K->202286K(831488K), 0.0107640 secs] [Times: user=0.02 sys=0.02, real=0.01 secs]

I would try Java 6 update 23 which has JVM build 19.0-b09
A number of things can trigger more full GC than you need, such as a lack of survivor space.
However, given it is come in bursts it could be something like running out of direct memory. e.g. when openning some new files or reconnecting via NIO to a server. When you run low on direct memory, the JVM triggers a Full GC as this is the only way to force these objects to be collected.
RMI can also call full GCs, but I largely turn this off, so I don't have much experience with its performance quirks.

Follow up on: Topic : iBook G4 800 MHz freezes when moved or bumped lightly

Last year I posted the following message, which has been fixed. Summary of repair at bottom of post:
Original message posted Aug 4, 2007:
"For the past several months my iBook G4 has been freezing when moved or bumped lightly. It has also occasionally done some strange things at startup. It sometimes will show just a grey screen and sit there. Sometimes the screen will do some sort of fade transition across the screen, going bright in a wave accros the screen and then to black and then nothing. Sometimes there will be vertical lines in the middle of the right side of the screen of various colors. And the last significant occurance is the occassional static in the display. These video symptoms always occur at startup. If the computer starts up to the desktop it will only freeze if moved or bumped lightly. The cursor sometimes can still be moved after the computer freezes.
I have done the following:
Clean install of OS (Tiger 10.4) with all updates and tested before updating. If have done this before and after wiping the drive clean.
I have removed the extra RAM, reseated the RAM, removed the Airport Extreme card, reseated the Airport Extreme card. I have chaged out the hard drive. I have also disassembled most of the computer to check for any other loose components. The only discrepency I have found was a crimped microphone wire, that is slightly damaged. The screen was replaced a few months after purchase when it had a close encounter with a hot wheel car of my son's. The computer is currently a little over three and a half years old.
I work on computers for a living, specialize in Macs, and have been using Macs since 1986. I am stumped. Can someone please shed some light on this issue by providing a different point of view than my own. Sometimes we need an outside perspective to solve some problems.
Thanks in advance for any help you can provide."
Solution provided by Apple:
I took the laptop to the Apple Store and sent it in for the flat rate repair, which was a little over $300. They had to replace the motherboard and some of the cable. The bad motherboard was causing video issues, freezing and startup difficulties. The bad cables were causing the freezing when the unit was moved. The laptop has performed exceptionally well since the repair and is still in use. Hope this helps other people out there.

As a guess it suggests to me that the leads on U28 need to be reflowed.
Mad Dog

My mac keeps freezing when turned on from Sleep

Hello,
I bought in iMac last Summer. About a couple weeks in, I started having issues with my iMac freezing when I would turn it on from Sleep mode. This would not happen every time but instead, intermittently. It also will manifest itself in different ways: programs will freeze one at a time until all programs are frozen I just have spinning wheel, sometimes it will freeze and shut itself down, sometimes it will go to a grey screen, etc. This has made it an extremely hard issue to reproduce at the drop of a hat. The main reason this alarms is that I have a 4-year old Macbook that still works incredibly well, despite being slowerThroughout the past months, I have done just about everything I can think of (and was told to do by Apple support) to resolve this issue.
I have:
Reset the SMC and PRAM
Tried booting in Safe Mode
Deleted the EnergySaverPreference .plist file
Spent hours on the phone/text with various Apple technicians troubleshooting the issues.
Twice done a clean wipe and re-installed OSX. I had this problem with both Yosemite and Mavericks. I have made sure to never restore my Time Machine back ups but instead, bring isolated files in one by one and no "System Files" – just songs, music, documents, and applications.
Twice taken it in to the Apple Store to be repaired and nothing has been done to resolve the problem. I just got it back and within two days, it froze again in the same manner as before.
My technical specs are: iMac (21.5-inch, Late 2013,) 2.7 GHz Intel Core i5 processor, 8GB 1600 MHz DDR Ram, running OSX Yosemite 10.10.2.
I feel like I am really beginning to run out of options. I feel like I can not trust this machine to do daily tasks or the large projects for which I bought it. I do not have AppleCare but obviously this feels like a pre-existing software or hardware issue and I'm still under warranty. Apple has implied that there would be no way for me to receive any money back and the likelihood of getting a device replacement is very low. I don't have a car so taking my iMac via taxi or lugging it around via public transportation is both very inconvenient and a bit pricey for me. Any advice, technical, for customer-relations, or otherwise?
Any help would be greatly appreciated.

Here's what I got:
Anonymous UUID: F7046045-224A-33C4-D416-BA38288F06AA
Tue Mar 24 21:47:30 2015
*** Panic Report ***
panic(cpu 1 caller 0xffffff800c1c1694): "launchd died\nState at Last Exception:\n\n"@/SourceCache/xnu/xnu-2782.10.73/bsd/kern/kern_exit.c:361
Backtrace (CPU 1), Frame : Return Address
0xffffff8116843e50 : 0xffffff800bd2fe41
0xffffff8116843ed0 : 0xffffff800c1c1694
0xffffff8116843f40 : 0xffffff800c1c135c
0xffffff8116843f50 : 0xffffff800c24b386
0xffffff8116843fb0 : 0xffffff800be36e86
BSD process name corresponding to current thread: launchd
Mac OS version:
14C1514
Kernel version:
Darwin Kernel Version 14.1.0: Thu Feb 26 19:26:47 PST 2015; root:xnu-2782.10.73~1/RELEASE_X86_64
Kernel UUID: 270413F7-3B44-3602-894F-AC0D392FCF8E
Kernel slide: 0x000000000ba00000
Kernel text base: 0xffffff800bc00000
__HIB text base: 0xffffff800bb00000
System model name: iMac14,1 (Mac-031B6874CF7F642A)
System uptime in nanoseconds: 17919473593239
last loaded kext at 10628493338895: com.apple.iokit.SCSITaskUserClient 3.7.3 (addr 0xffffff7f8e359000, size 36864)
last unloaded kext at 10755631197884: com.apple.driver.AppleUSBCDC 4.2.2b5 (addr 0xffffff7f8e330000, size 16384)
loaded kexts:
com.apple.iokit.SCSITaskUserClient 3.7.3
com.apple.filesystems.smbfs 3.0.0
com.apple.driver.AudioAUUC 1.70
com.apple.driver.AGPM 100.15.5
com.apple.driver.ApplePlatformEnabler 2.1.7d1
com.apple.driver.X86PlatformShim 1.0.0
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleBluetoothMultitouch 85.3
com.apple.iokit.IOBluetoothSerialManager 4.3.2f6
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.driver.AppleMikeyDriver 269.25
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleHDA 269.25
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleLPC 1.7.3
com.apple.driver.AppleHV 1
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.2f6
com.apple.driver.AppleThunderboltIP 2.0.2
com.apple.driver.AppleSMCLMU 2.0.7d0
com.apple.driver.AppleMCCSControl 1.2.11
com.apple.driver.AppleIntelHD5000Graphics 10.0.2
com.apple.driver.AppleIntelFramebufferAzul 10.0.2
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 35
com.apple.driver.AppleUSBHub 705.4.2
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.7.0
com.apple.iokit.AppleBCM5701Ethernet 10.1.3
com.apple.driver.AppleSDXC 1.6.5
com.apple.driver.AirPort.Brcm4360 910.26.12
com.apple.driver.AppleAHCIPort 3.1.0
com.apple.driver.AppleUSBXHCI 710.4.11
com.apple.driver.AppleACPIButtons 3.1
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 3.1
com.apple.driver.AppleAPIC 1.7
com.apple.nke.applicationfirewall 161
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.3
com.apple.iokit.IOUSBMassStorageClass 3.7.1
com.apple.kext.triggers 1.0
com.apple.driver.AppleBluetoothHIDKeyboard 176.2
com.apple.driver.AppleHIDKeyboard 176.2
com.apple.driver.IOBluetoothHIDDriver 4.3.2f6
com.apple.driver.AppleMultitouchDriver 262.33.1
com.apple.iokit.IOSerialFamily 11
com.apple.driver.DspFuncLib 269.25
com.apple.kext.OSvKernDSPLib 1.15
com.apple.iokit.IOUSBUserClient 705.4.0
com.apple.driver.AppleHDAController 269.25
com.apple.iokit.IOHDAFamily 269.25
com.apple.iokit.IOAudioFamily 203.3
com.apple.vecLib.kext 1.2.0
com.apple.driver.X86PlatformPlugin 1.0.0
com.apple.driver.IOPlatformPluginFamily 5.8.1d38
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.2f6
com.apple.iokit.IOBluetoothFamily 4.3.2f6
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.driver.AppleThunderboltEDMSink 4.0.2
com.apple.driver.AppleSMC 3.1.9
com.apple.driver.AppleSMBusController 1.0.13d1
com.apple.iokit.IOSurface 97.0.1
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.AppleGraphicsDeviceControl 3.8.6
com.apple.iokit.IOAcceleratorFamily2 156.6.1
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.3
com.apple.driver.AppleUSBMergeNub 705.4.0
com.apple.driver.AppleUSBComposite 705.4.9
com.apple.driver.AppleThunderboltDPInAdapter 4.0.6
com.apple.driver.AppleThunderboltDPOutAdapter 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 4.2.1
com.apple.iokit.IOEthernetAVBController 1.0.3b3
com.apple.iokit.IO80211Family 710.55
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOAHCIFamily 2.7.5
com.apple.iokit.IOUSBFamily 710.4.14
com.apple.driver.AppleEFINVRAM 2.0
com.apple.driver.AppleEFIRuntime 2.0
com.apple.iokit.IOHIDFamily 2.0.0
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 396
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.Libm 1
com.apple.kec.pthread 1
com.apple.kec.corecrypto 1.0

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