IBook flames out after startup

A friend's iBook started freezing soon after startup. That problem has now escalated to spontaneous shutdown either during or shortly after startup. The same thing happened when I tried to boot the iBook in target disk mode. Any ideas what's going on? Is the motherboard fried?
One additional detail: "About this Mac" reports that this iBook is a 1.07GHz G4. I doubt that such a model exists.

Hi, I just had the same trouble, I have a 1.33Ghz iBook, The screen went black and had random shutdowns. After looking at the system console, I looked this line:
May 27 23:40:56 localhost kernel[0]: ApplePMU::PMU forced shutdown, cause = -127, found that after some time the PMU needs resetting, so it can work properly again.
I tried resetting the PRAM and the PMU, and Boom, now working nicely
http://support.apple.com/kb/HT1431?viewlocale=en_US
Note that when you reset the PMU, the computer instantly restarts, so don't do it when working or anything…

Similar Messages

Mac OS X keeps logging me out after startup!!

Hello!
I need help! I shutdown my computer last night and when I tried to login again this morning, it keeps logging me out
after I signed in.
After successful authentication, I can see the desktop for 1 second and then .. it signed off automatically and return to the authentication window.
I tried safe mode, file repairs...
I created myself another admin account in single-mode (remove the .AppleSetupDone file in /db and I'm able to use that admin account
to log without any issues!
a) How can I check my original admin account for errors?
b) Where can I see the startup error log for that account?
c) How can I disable all startup items for that account?
d) or .. any thoughts?
Thank you in advance!

Launch the Console utility and look for messages that might explain the problem.

Help!!! ibook automatic sleeping after startup

my ibook fell down from the desk, the display is broken, so i remove the display and all the cable of the display. then i connect another LCD. the ibook sleeping after startup. so what's wrong with it? anybody can give a solution?

It could be that you've damaged the system which checks whether the laptop lid is closed; whatever the cause of the problem is, it sounds like you need to get it repaired if it's fallen off a desk and the display is broken!

My ibook G4 display greys out after a few seconds, clicking on the screen returns it to normal.

My ibook G4 display greys out after a few seconds, clicking on the screen returns it to normal functioning. I have adjusted the delay times before the computer goes to sleep to no avail, so I'm thinking this issue stems from something else.

Have you tried resetting the PMU? The PMU (Power Management Unit) has control over the sleep function, so resetting it may help if the iBook is sleeping unexpectedly.

IBook G4 freezes after 10 minutes

my iBook G4 freezes after a few minutes of use.
it starts up but freezes after around 10 minutes (variable 5 - 20 mins). The screen is frozen and no keyboard or mouse input is accepted. Only way out I found was to power-off. This happens from cold.
When warm, it freezes on startup with blue screen.
I have been able to clear the disc and reload MAC OS from install discs and the symptoms are identical. There are no modifications, no devices connected, no network connection and the wifi is turned off. It makes no difference whether the battery is removed and run on power supply or simply run on fullycharged battery.
I tried:
1. remove/replace wifi card and memory check connections OK.
2. Startup from install disc and repaired disc, although it was OK. Disc seems to be fine.
3. Reset PROM.
4. stored the iBook in a cold place and it ran for longer.
5. Ran a temperture monitor - all temperatures are OK.
6. I have tried using the latest MAC OS 10.4 and the original one supplied with th iBook (10.3).
I do not think it is a disc, airport card, cooling fan or battery fault. It could be a memory module failure or some motherboard fault. Its not software or driver.
I think the only thing left is that some hardware fails when it gets wram and works agin when cold. The colder t is to at startup, the longer it works for.
I have now run out of ideas.

It ran long enough to install from disc-1 then froze. After restarting, it asked for disc-2 and that loaded then froze. After restarting, it worked a short while then froze. To get this far, I left the iBook in a cold place before starting it up and this extended the runtime from the normal 5 minutes to as much as 25 minutes.
I disconnected the disc and it behaved the same while starting from the CD drive so I think the disc is OK or its more than one cause.
This feels like a dry solder joint problem, to me - applying pressure on the motherboard or lowering the temperature will temporarily fix it for a few minutes.
If I pay for a repair then, statistically, it will last 3 months longer so its too risky. It would not be so bad if Apple could repair it with confidence that it will not have the same problem again, but to do that they would have to admit to what causes the this problem with so many iBooks.

IMac freeze after startup, works fine in safe mode

Hello, my Mid 2010 iMac is freezing about 3 minutes after startup. Ive tried booting from the instal disk and repairing it but it didnt work. In safe mode it works completely fine. It similar to some other peoples problem but i was hoping someone could help me, my applecare literally just ran out like 3 weeks ago.

Hi baltwo,
Im sorry but Im new to the community and I don't know how to address users directly. Hence intruding.
It would be kind of you to shed some light on the matter.
I'm running lion 10.7.5 and followed similar procedures but mail downloads every mail again after cataloging and indexing my earlier(snow leopard 10.6.5) mail. More details at https://discussions.apple.com/thread/5373643
It would be great to find a solution as I'm struggling since two weeks.
Thanks,
Abu Suda

BSOD after startup with Win7

Hello,
After some difficulty I got Windows 7 installed on my Mac Pro. It worked until I installed Boot Camp off the Mac OS X Snow Leopard install DVD. Boot Camp installed, but once I rebooted, about 20-30 seconds after reboot I get a Blue Screen error which says something about a cache management error. It doesn't stay up long so I haven't had a lot of time to study it. On reboot the error report doesn't give a whole lot of info, calls the error "Bluescreen", but it did reference a couple files, I can try to copy them down if it's important (they were long and I only get a few seconds to look at them).
I even tried not logging in and just leaving it after startup, same result.
It's a totally fresh install of Windows 7 Ultimate on a dedicated 500GB hard drive. The only thing I've installed is Boot Camp. I've tried wiping it out and re-installing everything, same results. The first time I installed no Windows updates prior to Boot Camp, the second time I installed all available Windows updates first. Same results.
I'm not sure what could be causing this- it seems like a driver issue of some kind maybe, but it seems like if Boot Camp were inherently problematic with this hardware more people would be having this problem. I can't really think of any other factors that could be interfering... it sure seems like a conflict between boot camp and Windows 7, but I don't see how that should be the case. Despite all the trouble I've been having with this I'm normally a pretty advanced user, so I'm pretty sure I'm not doing anything wrong in the install process (I've done it at my work lots of times), but I know a lot more about macs than Windows.
My system:
Mac Pro 2.8 Ghz 8-core, early 2008 model
Memory: 10GB- 2x1GB stock from Apple, 4x2GB from Otherworldcomputing.com
Hard Drive: 2x1TB Western Digital in a striping raid, 500GB Seagate (the Windows drive), 1TB Western Digital.
Mac OS: 10.6.2 fully updated
I had the release candidate running for several days off this same drive with no issues back around when it came out (I erased it a while ago), and I don't think I've changed my hardware since then... although boot camp has been updated since. Perhaps somewhat ironically, Windows 7 was officially unsupported when I had the RC running, and now it's officially supported.
I'd appreciate any input, although the_hatter has already helped me out quite a bit... it seems like Windows really doesn't want to install for me! Just let me know if any more information is required.
Message was edited by: aruffell2

I have exactly the same problem, down to the last detail, except that I got there by a different route.
My history is that I initially installed Windows 7 x64 Home Premium on my 2006 Mac Pro using an EFI install disk I created using the methods detailed elsewhere in this forum. Installed Boot Camp 3.0 from the SL disk then updated to 3.1. Then did Upgrade Anytime to Ultimate. Everything worked wonderfully for three months.
Then I created some striped raid volumes involving three of the five HDs in my machine using SoftRaid. My boot drive (unlike you?) is not raid. Windows 7 Ultimate continued to work perfectly.
Then I wanted to move the Windows 7 partition to a different physical HD, by restoring a Paragon Image (which I have successfully done on my MacBook Pro previously). First oddness was that Boot Camp Assistant would not create a Boot Camp partition of the whole disk, as I wanted, it would only create a second partition, even with the all the raided HDs removed from the machine and uninstalling the Softraid driver. Odd? I put the HDs and driver back in and restored the Windows 7 image to the Boot Camp partition.
This had the same behaviour you described crashed to the Cache Manager blue screen after 20 seconds. It would boot stably in safe mode so I was able to run chkdsk but it didn't fix it.
Then I repeated the whole exercise but started with a restored Vista 32 bit, and reinstalled Windows 7 X64 as a fresh install, (had to start with Vista as my Windows 7 license is an upgrade), then did the Anytime Upgrade to Ultimate, then applied Boot Camp 3.0 from the SL disk. At this point it was completely stable. Then I did Boot Camp 3.1 via ASU and got the Cache_Manager blue screen exactly as before.
Can't find anything helpful with Google about Cache_Manager crashes except the suggestion that there is some kind of massive memory leak going on during the 20 seconds before it crashes.
I have now repeated the process back to Vista 32 bit which is completely stable, and plan to try again, but this time will install BC 3.0 and 3.1 at the Home Premium stage, which is when they were applied in the very original sequence. Also I can use my Home Premium install disk to try a repair install if problems occur again.
I am only trying to get back to a state which previously worked fine, ie with Raid present, Windows 7 x64 and BC 3.1. It should be possible. I know you can't have a Boot Camp partition on a raid array, but my experience is that it was previously OK on a partition on a non raid volume, even with raid elsewhere in the machine.
Don't think I have helped you at all, but it has sure helped me to write it down! Since you posted nearly four weeks ago you may have solved it anyway. In which case I would like to hear from you!

Applications take a lonnnnng time to open after startup

I'm not sure if this is a problem or just the way the Mac works. Either way I'd love an explanation if someone knows.
After I start up or restart my Mac, it boots just fine, not too slow or anything. Once it looks like I should be ready to open up applications and get going (i.e. external HD is booted, dock is all good to go), though, it seems to take a VERY long time for them to open. If I open up Firefox, it takes at least a minute to open and load my home page, whereas once this initial slow period is over, it takes only seconds.
I didn't notice this as much with my PPC iMac but it's very obvious with the Intel one. As I said, after the initial slow period is over, everything works fine. Is this working the way it's supposed to? Thanks.

Does this happen to you with all applications?
Yes. It happens with any application I open during the "slow minutes" after I boot up. Entourage, despite working under Rosetta, normally opens almost as quickly as, for example, iTunes. But even iTunes takes forever during this period.
Also, how much RAM does your iMac have?
2GB.
In my MacBook, applications open almost instantly.
Again, this is just in the couple of minutes after startup. Ordinarily my applications open almost instantly as well. I'm just trying to figure out what's slowing my computer down so badly just after it boots up. Thanks for your reply!

Solaris 10, amd64, JVM crash at short time after startup

Hi All,
I have an application which allocate 10G of memory for his Heap, run on 4 dual core amd64 CPUs, 16G RAM machine and crash in 98% of the cases at short time after startup. This is a customer machine.
I have a similar machine for tests with only 2 dual core amd64 CPU and 12G RAM and I don't experience any crashes running application with similar configuration, similar version of JDK and similar input data.
I have tried with different GC algorithms, but we obtain crashes sonner or later. I rare cases when application manage to start seems that CMS offer the greatest performance.
There is a bug in JVM? Knows anybody an workaround for this?
# An unexpected error has been detected by Java Runtime Environment:
# SIGSEGV (0xb) at pc=0xfffffd7ffebbdb33, pid=21678, tid=5
# Java VM: Java HotSpot(TM) 64-Bit Server VM (1.6.0_03-b05 mixed mode)
# Problematic frame:
# V [libjvm.so+0x5bdb33]
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
--------------- T H R E A D ---------------
Current thread (0x000000000042e000): GCTaskThread [id=5]
siginfo:si_signo=11, si_errno=0, si_code=1, si_addr=0x00000000000000a8
Registers:
RAX=0x0000000000000000, RBX=0x0000000000000002, RCX=0x0000000000000000, RDX=0x0000000000000000
RSP=0xfffffd7ffad37800, RBP=0xfffffd7ffad37830, RSI=0x0000000000000000, RDI=0x00000000004e6790
, R8=0x0000000000000000, R9=0x0000000000000002, R10=0x0000000000000000, R11=0xfffffd7d7bddd058, R12=0x00000000004e6790, R13=0x0000000000000000, R14=0x0000000000000000, R15=0x0000000000429650
RIP=0xfffffd7ffebbdb33, RFLAGS=0x0000000000010246
Top of Stack: (sp=0xfffffd7ffad37800)
0xfffffd7ffad37800: fffffd7fff1051c8 000000000042a1f0
0xfffffd7ffad37810: fffffd7d72bd05a0 0000000000000000
0xfffffd7ffad37820: fffffd7d72bd05a0 0000000000000001
0xfffffd7ffad37830: fffffd7ffad37840 fffffd7ffebcfdd1
0xfffffd7ffad37840: fffffd7ffad37cc0 fffffd7ffee8953b
0xfffffd7ffad37850: fffffd7d72bd05a0 0000000000000001
0xfffffd7ffad37860: 000000000042a370 000000000042e000
0xfffffd7ffad37870: 0000000000000002 0000000000000000
0xfffffd7ffad37880: 0000000000000000 0000000000422e80
0xfffffd7ffad37890: 000000000042c120 000000000042e320
0xfffffd7ffad378a0: 000000000042e330 000000000042e708
0xfffffd7ffad378b0: 000000000042e000 0000000000424180
0xfffffd7ffad378c0: 000000000042e720 000000000042e730
0xfffffd7ffad378d0: 000000000042eb08 00000000004241c0
0xfffffd7ffad378e0: 00000000004224a0 0000000000000000
0xfffffd7ffad378f0: 0000000000000000 0000000000000000
0xfffffd7ffad37900: 0000000000000000 0000000000000400
0xfffffd7ffad37910: fffffd7d7a92c5f8 fffffd7d7a92c5f8
0xfffffd7ffad37920: fffffd7d7a92c5f8 fffffd7d7a92c5f8
0xfffffd7ffad37930: 0000000000000000 0000000000000000
0xfffffd7ffad37940: 0000000000000000 0000000000038800
0xfffffd7ffad37950: 0000000000000479 0000000000000000
0xfffffd7ffad37960: 0000000000000000 0000000000000000
0xfffffd7ffad37970: 0000000000000000 fffffd7ffad37b10
0xfffffd7ffad37980: fffffd7ffad37b58 fffffd7ffad37ba0
0xfffffd7ffad37990: fffffd7ffad37c30 0000000000430240
0xfffffd7ffad379a0: 0000000000429650 fffffd7d7a930000
0xfffffd7ffad379b0: 000000026ed7667f 0000000000000000
0xfffffd7ffad379c0: 000000000003a890 0000000000000000
0xfffffd7ffad379d0: 0000000000000000 0000000000000000
0xfffffd7ffad379e0: 0000000000000000 0000000000000000
0xfffffd7ffad379f0: 0000000000000000 0000000000000000
Instructions: (pc=0xfffffd7ffebbdb33)
0xfffffd7ffebbdb23: 24 20 4c 8b 44 24 20 4d 89 03 eb 18 4d 8b 43 08
0xfffffd7ffebbdb33: 4d 8b 80 a8 00 00 00 4c 89 44 24 28 4c 8b 44 24
Stack: [0x0000000000000000,0x0000000000000000), sp=0xfffffd7ffad37800, free space=1610527966k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x5bdb33]
V [libjvm.so+0x5cfdd1]
V [libjvm.so+0x88953b]
V [libjvm.so+0x98e8a6]
V [libjvm.so+0x98e799]
V [libjvm.so+0x87b18c]
C [libc.so.1+0xcb34b] thrslot_offset+0x31b
C [libc.so.1+0xcb580] thrslot_offset+0x550
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
0x0000000000a6b400 JavaThread "Timer-0" [_thread_blocked, id=19]
0x0000000000743400 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=17]
0x0000000000742000 JavaThread "CompilerThread1" daemon [_thread_blocked, id=16]
0x0000000000740c00 JavaThread "CompilerThread0" daemon [_thread_blocked, id=15]
0x000000000072c400 JavaThread "JDWP Event Helper Thread" daemon [_thread_blocked, id=14]
0x0000000000729800 JavaThread "JDWP Transport Listener: dt_socket" daemon [_thread_in_native, id=13]
0x000000000071c400 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=12]
0x000000000071b800 JavaThread "Surrogate Locker Thread (CMS)" daemon [_thread_blocked, id=11]
0x00000000006f3000 JavaThread "Finalizer" daemon [_thread_blocked, id=10]
0x00000000006f2800 JavaThread "Reference Handler" daemon [_thread_blocked, id=9]
0x0000000000428400 JavaThread "main" [_thread_blocked, id=2]
Other Threads:
0x00000000006ee400 VMThread [id=8]
0x0000000000744c00 WatcherThread [id=18]
VM state:at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: ([mutex/lock_event])
[0x00000000004273a0/0x0000000000427400] Threads_lock - owner thread: 0x00000000006ee400
[0x0000000000423500/0x0000000000427b10] Heap_lock - owner thread: 0x0000000000428400
Heap
par new generation total 74560K, used 63936K [0xfffffd7d75600000, 0xfffffd7d7a930000, 0xfffffd7d7a930000)
eden space 63936K, 100% used [0xfffffd7d75600000, 0xfffffd7d79470000, 0xfffffd7d79470000)
from space 10624K, 0% used [0xfffffd7d79470000, 0xfffffd7d79470000, 0xfffffd7d79ed0000)
to space 10624K, 100% used [0xfffffd7d79ed0000, 0xfffffd7d7a930000, 0xfffffd7d7a930000)
concurrent mark-sweep generation total 10400576K, used 29146K [0xfffffd7d7a930000, 0xfffffd7ff5600000, 0xfffffd7ff5600000)
concurrent-mark-sweep perm gen total 21248K, used 6589K [0xfffffd7ff5600000, 0xfffffd7ff6ac0000, 0xfffffd7ffaa00000)
Dynamic libraries:
0x0000000000400000      /export/home/tg/jre1.6.0_03/bin/amd64/java
0xfffffd7fff380000      /lib/64/libthread.so.1
0xfffffd7fff360000      /export/home/tg/jre1.6.0_03/bin/amd64/../../lib/amd64/jli/libjli.so
0xfffffd7fff390000      /lib/64/libdl.so.1
0xfffffd7fff240000      /lib/64/libc.so.1
0xfffffd7ffe600000      /export/home/tg/jre1.6.0_03/lib/amd64/server/libjvm.so
0xfffffd7fff1e0000      /lib/64/libsocket.so.1
0xfffffd7fff340000      /usr/lib/64/libsched.so.1
0xfffffd7fff1a0000      /lib/64/libm.so.1
0xfffffd7fff170000      /usr/lib/64/libCrun.so.1
0xfffffd7fff140000      /lib/64/libdoor.so.1
0xfffffd7ffe530000      /lib/64/libnsl.so.1
0xfffffd7ffe4b0000      /lib/64/libm.so.2
0xfffffd7ffe470000      /lib/64/libscf.so.1
0xfffffd7ffe440000      /lib/64/libuutil.so.1
0xfffffd7ffe420000      /lib/64/libmd5.so.1
0xfffffd7ffe3f0000      /lib/64/libmp.so.2
0xfffffd7ffe270000      /export/home/tg/jre1.6.0_03/lib/amd64/native_threads/libhpi.so
0xfffffd7ffe210000      /export/home/tg/jre1.6.0_03/lib/amd64/libjdwp.so
0xfffffd7ffe1e0000      /export/home/tg/jre1.6.0_03/lib/amd64/libnpt.so
0xfffffd7ffe190000      /usr/lib/iconv/amd64/UTF-8%646.so
0xfffffd7ffe160000      /usr/lib/iconv/amd64/646%UTF-8.so
0xfffffd7ffe110000      /export/home/tg/jre1.6.0_03/lib/amd64/libverify.so
0xfffffd7ffe0c0000      /export/home/tg/jre1.6.0_03/lib/amd64/libjava.so
0xfffffd7ffe080000      /export/home/tg/jre1.6.0_03/lib/amd64/libzip.so
0xfffffd7ffe010000      /export/home/tg/jre1.6.0_03/lib/amd64/libdt_socket.so
0xfffffd7d75460000      /lib/64/nss_files.so.1
VM Arguments:
jvm_args: -XX:+UseConcMarkSweepGC -XX:ParallelGCThreads=4 -Dapp.dir=/opt/tg/cos-deploy-0.35/bin/.. -Dlog.dir=log -Dapp.name=process -Detc.dir=/opt/tg/cos-deploy-0.35/bin/../etc -Dconfig.file=/opt/tg/cos-deploy-0.35/bin/../etc/process.properties -Dlog4j.configuration=etc/log4j.xml -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005 -Xms10G -Xmx10G
java_command: tg.cos.server.Main
Launcher Type: SUN_STANDARD
Environment Variables:
JAVA_HOME=/export/home/tg/jre1.6.0_03
PATH=/opt/tg/fcs-foundation/perl/bin:/opt/tg/fcs-foundation/perl/bin:/sbin:/usr/sbin:/usr/sfw/bin:/opt/sfw/bin:/usr/X/bin:/usr/ccs/bin:/usr/local/bin:/usr/bin:/usr/sbin:/export/home/oracle_install/product/client/10.2/bin:/opt/tg/POOL/bin:/opt/tg/MailSender/bin:/export/home/tg/bin:/usr/sbin:/export/home/oracle_install/product/client/10.2/bin:/opt/tg/POOL/bin:/opt/tg/MailSender/bin
LD_LIBRARY_PATH=/export/home/tg/jre1.6.0_03/lib/amd64/server:/export/home/tg/jre1.6.0_03/lib/amd64:/export/home/tg/jre1.6.0_03/../lib/amd64
SHELL=/bin/bash
Signal Handlers:
SIGSEGV: [libjvm.so+0x9883b0], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c
SIGBUS: [libjvm.so+0x9883b0], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c
SIGFPE: [libjvm.so+0x315b10], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c
SIGPIPE: [libjvm.so+0x315b10], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c
SIGILL: [libjvm.so+0x315b10], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c
SIGUSR1: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000
SIGUSR2: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000
SIGHUP: [libjvm.so+0x87ca80], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
SIGINT: [libjvm.so+0x87ca80], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
SIGQUIT: [libjvm.so+0x87ca80], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
SIGTERM: [libjvm.so+0x87ca80], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
SIGQUIT: [libjvm.so+0x87ca80], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
SIGTERM: [libjvm.so+0x87ca80], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
SIG39: [libjvm.so+0x87f4d0], sa_mask[0]=0x00000000, sa_flags=0x00000008
SIG40: [libjvm.so+0x315b10], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c
--------------- S Y S T E M ---------------
OS: Solaris 10 11/06 s10x_u3wos_10 X86
Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
Use is subject to license terms.
Assembled 14 November 2006
uname:SunOS 5.10 Generic_118855-33 i86pc (T2 libthread)
rlimit: STACK 10240k, CORE infinity, NOFILE 65536, AS infinity
load average:3.72 3.68 3.23
CPU:total 8 (2 cores per cpu, 1 threads per core) family 15 model 65 stepping 2, cmov, cx8, fxsr, mmx, sse, sse2, sse3, mmxext, 3dnow, 3dnowext
Memory: 4k page, physical 16775096k(1672236k free)
vm_info: Java HotSpot(TM) 64-Bit Server VM (1.6.0_03-b05) for solaris-amd64, built on Sep 24 2007 22:29:24 by "" with unknown Workshop:0x580
I created a small test which somehow emulate the real application and I obtain the same results: on test machine run without any issues on live machine it crashes all the time.
What can be the cause?
import java.util.*;
public class MemoryTest {
     private List<Page> pages = new LinkedList<Page>();
     public void initTest() {
          int counter = 1;
          while( canAddOneMorePage() ) {
               Page page = new Page(counter, (byte)counter++);
               pages.add(page);
     private boolean canAddOneMorePage() {
          boolean result = true;
          long freeMem = Runtime.getRuntime().freeMemory() / (1024*1024) ;
          if (freeMem < 512) {
               result = false;
          return result;
     private boolean validatePages() {
          boolean arePagesValid = true;
          for(Page p : pages) {
               boolean isPageValid = p.isValid();
               if ( !isPageValid ) {
                    System.out.println("Page "+p.id+ " contains corrupted data");
                    arePagesValid = false;
          return arePagesValid;
     private void updatePages(byte value) {
          for(Page p : pages) {
               p.updateValues(value);
     public void runTest() {
          int TESTS_NUM = 100;
          System.out.println("There are "+pages.size()+" pages.");
          System.out.println("Currently the pages "+ (validatePages() ? "contain no errors" : "contain errors"));
          for(int i=1; i<TESTS_NUM; i++) {
               System.out.println("Test "+i+" of "+TESTS_NUM);
               updatePages((byte)i);
               validatePages();
     public static void main(String[] args) {
          MemoryTest main = new MemoryTest();
          main.initTest();
          main.runTest();
class Page {
     public static final int LENGTH = 1024*1024;
     List <byte[]> list;
     public byte value = 0;
     public int id;
     public Page(int id, byte value) {
          this.list = new LinkedList<byte[]>();
          this.value = value;
          this.id = id;
          for(int i=0; i<LENGTH; i++) {
               byte[] data = new byte [512];
               for( int j=0; j<512; j++) {
                    data[j] = value;
               list.add(data);
     public void updateValues(byte value) {
          this.value = value;
          this.list = new LinkedList<byte[]>();
          System.out.println("Updating page "+id);
          for(int i=0; i<LENGTH; i++) {
               byte[] data = new byte [512];
               for( int j=0; j<512; j++) {
                    data[j] = value;
               list.add(data);
     public boolean isValid() {
          boolean result = true;
          for( byte[] data: list) {
               for( byte b : data) {
                    if (value != b) {
                         result = false;
                         break;
               if ( !result ) {
                    break;
          return result;
}Edited by: blue67 on Dec 10, 2007 12:57 AM

I've experienced the same crash problem for my application in a Sun Fire x4600 M2..
My application which allocates 50G of memory for his Heap, runs on 8 quad core amd64 CPUs, 64G RAM machine and crash in 98% of the cases at short time after startup.
If I run my application on a different machine, for example a Sun Fire 280R with 2 CPUs UltraSPARC-III+ 1.2Ghz 8MB, there are no crashes.
I think the problem is related to the AMD 64 bits CPU architecture.
I filed a bug to the Sun Bug DB with ID 1415527, but it hasn't been published yet.
I cannot understand why, since it seems to be a problem common also to other users.
Here's part of my last hs_err_pidXXX.log file:
# An unexpected error has been detected by Java Runtime Environment:
# SIGSEGV (0xb) at pc=0xfffffd7ffebbd0bd, pid=25799, tid=50
# Java VM: Java HotSpot(TM) 64-Bit Server VM (11.0-b16 mixed mode solaris-amd64)
# Problematic frame:
# V [libjvm.so+0x5bd0bd]
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
T H R E A D
Current thread (0x0000000000b21c00): GCTaskThread [stack: 0x0000000000000000,0x0000000000000000] [id=50]
siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0xfffffd7ffebbd0bd
Registers:
RAX=0x0000000000000000, RBX=0x0000000000000008, RCX=0x0000000000000002, RDX=0xfffffd73b56f1ce8
RSP=0xfffffd73b56f1cb0, RBP=0xfffffd73b56f1e00, RSI=0xfffffd7c55dd2f08, RDI=0xfffffd7c55dd2bb9
, R8=0xb000000000000000, R9=0x0000000000c38ff0, R10=0x00000000042d0e97, R11=0xfffffd7c55dd2d88, R12=0x0000000000b38f00, R13=0x000000000045d070, R14=0x000000000045d070, R15=0x0000000000003c4f
RIP=0xfffffd7ffebbd0bd, RFLAGS=0x0000000000010246
Top of Stack: (sp=0xfffffd73b56f1cb0)
0xfffffd73b56f1cb0: fffffd7fff0f15a8 0000000000000000
0xfffffd73b56f1cc0: fffffd73b56f1e48 fffffd73b45e0790
0xfffffd73b56f1cd0: 0000000000000008 fffffd7ffebbc239
0xfffffd73b56f1ce0: fffffd7fff0f15a8 fffffd7fff0ec260
0xfffffd73b56f1cf0: 0000000000000000 0000000000b0c5b0
0xfffffd73b56f1d00: fffffd73fbc00000 000000017fa80000
0xfffffd73b56f1d10: 0000000000b0c710 0000000000b0c850
0xfffffd73b56f1d20: 0000000000000000 000000000045d070
0xfffffd73b56f1d30: 0000000000000000 0000000000b0c850
0xfffffd73b56f1d40: fffffd73b45e07f8 0000000000b0c8d8
0xfffffd73b56f1d50: 0000000900b0c5b0 fffffd792b971d60
0xfffffd73b56f1d60: fffffd7fff103d04 0000441ef1e00000
0xfffffd73b56f1d70: fffffd7c55dd2f08 fffffd7f00003c4d
0xfffffd73b56f1d80: fffffd73b45e0790 441f3c4d00000000
0xfffffd73b56f1d90: 441f3c4d441f3c4d 441f3c4d441f3c4d
0xfffffd73b56f1da0: 441e3c4d441f3c4d 441f3c4d441e3c4d
0xfffffd73b56f1db0: 43c03c1e441e3c4d 441e3c4d441e3c4d
0xfffffd73b56f1dc0: 5e3634bf5e3634bf 10830ae010830ae0
0xfffffd73b56f1dd0: 036b3673036b3674 036b3673036b3673
0xfffffd73b56f1de0: 5e3634c05e3634c1 5e3634c05e3634c0
0xfffffd73b56f1df0: fffffd73b45e0790 00000054b45e0790
0xfffffd73b56f1e00: fffffd73b56f1eb0 fffffd7ffebbbd47
0xfffffd73b56f1e10: fffffd73b56f1ef8 0000000000b0ce20
0xfffffd73b56f1e20: 0000000000b21c00 fffffd7fff04a509
0xfffffd73b56f1e30: 0000000000000008 00000000ffffffff
0xfffffd73b56f1e40: fffffd73b56f1e70 0000000000000000
0xfffffd73b56f1e50: 000002185a539ab2 fffffd7fff103d01
0xfffffd73b56f1e60: 000000000042c560 0000000000b21e90
0xfffffd73b56f1e70: 0000000000b21ea0 0000000000b22278
0xfffffd73b56f1e80: 0000000000b21c00 000000000045a780
0xfffffd73b56f1e90: 0000000000b22290 0000000000b222a0
0xfffffd73b56f1ea0: 0000000000b22678 000000000045a7c0
Thanks

Windows 8.1 is forgetting Acrobat as my default PDF viewer after startup

I installed Arcobat XI Pro on Windows 8.1. I set Acrobat as my default PDF viewer during the installation. After the installation, none program was set as the default PDF viewer. When I tried to open a PDF file, Windows asked which program I want to use as my default PDF viewer. I Choose Acrobat.
Each time I start up my computer, Windows has forgotten my default PDF viewer. I did some research to find out if it was a problem with Windows or with Acrobat. I turns out to be a problem with Acrobat, becuase if I set Adobe Reader as my default PDF viewer, Windows does remember my default PDF viewer after startup.
Is there anybody with the same problem and do you have a solution?

Hi Anand,
Thanks for your responds.
This way is not working either. Both Reader and Acrobat are version 11.0.9.
Do you have any other solution? Beside, do you have any idea what is causing the problem?
Regards,
Matthijs

Freezing after startup

My iBook shut down after the battery showed 0%. I didn't have my power adapter with me which is why it went all the way to 0% before shutting down. iPhoto was open when it shut down. When I got back home, I plugged in my iBook and booted up. Startup would get as far as the blue bar before the login window. After the "blue bar" screen, I cannot get anything more than just a blue screen.
I've tried to start up holding down the "alt" button while powering up, but that doesn't work either. Do I need to reload iLife because iPhoto was open, or do I need to reinstall OS X? Any help would be greatly appreciated.

How much time goes by before you shut it down after the blue screen? Sometimes all it needs is a few minutes extra to reload and "think". Try inserting the install cd #1 and hold the C key and from there run the disk utility to repair the disk.

Adobe CC products either closes almost immediately after Startup or closes after giving the message "Could not validate license"

Okay, so I recently got all the products I wanted from CC via the student subscription. It was a bit of a pain getting everything working, as windows explorer crashed and reopened during installation of CC and during an update. Once I finally got in and got everything installed, I thought I was golden, it was then that I discovered my troubles had only just begun. Whenever I tried to open a program it either closed almost immediately after Startup or closed after giving the message "Could not validate license". Thus far I have not found a solution, as the much touted log out and log in method failed me.
Any help in this area would be greatly appreciated as I am honestly at a loss on what to do.
Technical details:
The programs I tried were After Effects, Audition, Photoshop and Premiere.
I am using Windows 7.

Link for Download & Install & Setup & Activation problems may help
-Online Chat http://www.adobe.com/support/download-install/supportinfo/

I bought a song on itunes but it cuts out after 14 seconds on my laptop but on my ipod it plays in full, how can I rectify the tune on my pc, thankyou

I bought a song on itunes but it cuts out after 14 seconds on my laptop but on my ipod it plays in full, how can I rectify the tune on my pc so that I can play it in the house and put it on a cd for the car. I went into the itunes store to play the tune and it cuts out there too. thankyou

Hello there, La Clairiere Feerique.
I understand you are having issues with playback of a purchased song. If iTunes in the Cloud is available in your country, it might be best to delete the song from your computer, then re-download from your purchase history.
To delete a song the following Knowledge Base article offers how to delete from your iOS device:
How to delete content you've downloaded from the iTunes Store, App Store, iBooks Store, or Mac App Store
http://support.apple.com/kb/HT5772
Music
Open the section below for the device you are using.
iPhone, iPad, or iPod touch
Mac or PC
Before you delete, find out if you'll be able to download the song you deleted again (it depends on where you live). To delete a song:
Launch iTunes.
From the Library pop-up menu, choose Music.
Click Songs in the navigation bar.
Click the song you want to delete.
Press the Delete key on your keyboard.
In iTunes 11, the album cover art will remain visible, but a cloud icon will appear on it to allow you to download the item again (in countries that support this).
Note: If you didn't purchase a song from the iTunes Store, you won't be able to download it again for free from iTunes in the Cloud. You might want to back it up somewhere on your computer.
Afterwards, re-download the purchases from your purchase history:
Downloading past purchases from the App Store, iBookstore, and iTunes Store
http://support.apple.com/kb/HT2519
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro.

Bizarre Crash After Startup problem

I have been having a very annoying problem with my PB for a while now that came to a head earlier today. All relevant software updates have been installed.
Recent changes: upgraded from 1 to 2GB of RAM.
Very shortly after startup (usually within a minute) the machine crashes. I have noticed 4 different presentations:
1). This is the most common. The screen will "blip" after which the computer no longer accepts any commands, though I can still move the cursor around. Most of the time, right after the screen blip, a tight row of small vertical multi-colored lines will appear somewhere on the screen.
2) No screen "blip" but the comptuer still freezes. Usually this occurs after logging in but before the desktop fully loads, though sometimes this happens immediately after the desktop finishes loading. Usually I will not have cursor control after this.
3) Screen blip, with cursor control, but the computer has crashed. Then the "beach Ball" appears for a few seconds, followed by the pointing hand cursor (when the hand should not appear).
4) This is the rarest type of crash. The screen will blip, I will lose cursor control, then the screen slowly starts fading away to white (one horizontal line at a time).
The bizarre thing is that once I restart, only very rarely will it crash a second time. It will work perfectly and remain stable as long as I need it to. But once the computer has sat idle for abour 6 hours or more (typically overnight), it will be prone to a freeze again within a minute of being used. It does not matter whether it had been shut down completely, put into Sleep, or just left sitting idle.
I had initially thought that perhaps the problem was related to a recent RAM upgrade (though of course the problem didn't begin in earnest until AFTER the 14 day return period for the RAM had expired), but because of what happened earlier today, I no longer believe that to be the case.
Today I found it necessary to take the computer on the road with me. I had only planned on using it for a few minutes (I just needed to show someone reference photos for a project we were working on) so I didn't bother to bring the power adapter with me (plus I hadn't felt like crawling under my desk to retrieve it).
Once I got there, the comptuer crashed immediately (it had been asleep). But this time, instead of settling down after the first crash, it kept crashing. Reboot after reboot after reboot and I couldn't get more than about a minute out of it before it crashed again. I tried removing and reseating the RAM to no avail. I stubbornly kept trying though about 20 reboots. Finally, having lost my patience (and suppressing an urge to hurl the machine through a window) I left it where it was (in the care of a friend) drove home, got the power adapter and went back. I plugged it in, started it up, it crashed once, then settled down and was usable again.
Any ideas as to what might be causing this? I hope it isn't something that will require me to get a new machine. I use this one every day and can't afford to replace it right now. Thank you in advance.
EDIT: I haven't tried reinstalling the old RAM to see if that solves the problem, but based on what happened while on battery, I no longer believe it's a RAM related issue.
-Dave J
Message was edited by: f14dflyer

Well, six weeks later.....
I did try reinstalling the original RAM. With the old RAM in place, the problem persists. If anything it's even worse now. Now the comptuer is susceptible to crashing at pretty much any time. It's getting to the point where it's almost unusable.
I'm not sure if it will help, but at one point I took a digital picture of the screen after a crash. This shows what is typical of the "type 1" crash. Since apparently images aren't allowed here, here's a direct link to the photo.
http://img120.imageshack.us/img120/9391/crashmodegc6.jpg

Can not take or watch photos + update my weather app with my flame device after updating to Firefox OS 2.0. - how can I solve this?

After updating the flame device photos are not saved anymore. I can see my old photos in the Gallery-list, but I can not click specific pictures anymore respectively the pictures do not appear anymore, when I click one. Also the update of my (german) weather app seems not to be possible anymore - the data download is not starting...
Can someone help me with these issues?
Best

Hi Heikschmi,
I'm sorry to hear that you are having issues with the camera and app updates in your Flame device, after receiving an update from the manufacturer, T2M.
Are you having issues updating other applications as well? What about recording videos in the camera app?
After reading the information provided about your issue I suggest a soft reset of the phone.
#Take the back cover of the phone off.
#Take the battery out.
#Take the SIM card and microSD card out (if applicable).
#Wait 10 seconds.
#Put the SIM card and microSD card back in (if applicable).
#Put the battery back in.
#Put the back cover back on.
#Turn the device on.
#Check if the issue you were having is still present.
You may also try uninstalling and reinstalling the weather application. Please report back to us if this solved your problem!
Thank you,
- Ralph

IBook flames out after startup

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