Filesystem corruption in Mac OS X

I have just run a md5sum check on a 300GB partition which I used as a "Reference" partition which is mounted read-only 99% of the time. I keep such things as software, music, e-books and all other reference documents which will not change on it. Most files have an md5sum checksum attached to them which is kept in a separate file.
I run a md5sum check every once in a blue moon. I guess I ran the last one some time in the past 5 years. I ran one today, and discovered with great alarm that 5 files none of which I have touched for years and years have failed the md5sum check.
Of the files I was able to recover from another source, I have found that the failure in every case involved a difference of an entire 4kB sector. The error in each case involved incorrectly read data with no warning of a bad sector or a bad read, or any indication that the data may be corrupt. Is this more likely to be a hardware-related failure or a kernel software filesystem-related failure? Has anybody ever conducted a systematic study of data integrity guarantees in Mac OS X filesystems? What is the hardware error rate of a typical disk? How reliable is the filesystem, and in what circumstances can corruption occur? Is this well understood?

Dr. T wrote:
I would dispute this. It is not well known, I believe, although I would hope it is at least moderately well known, that when you read a data-grade CD-ROM or DVD-ROM on Mac OS X, you will with a reasonable frequency (more than 1 sector/6GB read in my experience) occasionally get a silent incorrectly read sector. Yet this is factual.
Those are optical media consisting of some clear plastic and optical film. Plus, they don't even use HFS+ so it is a bit of a moot point.
I am interested in a rate in the form of number of sector silently returned differently read to the data originally written, per amount of data written. Thanks.
In other words, what percentage of written data will be read differently? That depends on a number of factors such as age of drive, hours of use, usage conditions, environmental conditions, etc. File system used on the disk is irrelevant. All disks die eventually - some after 6 months, some after 5 years.
I run the md5sum checksum check only occasionally. The data is occasionally copied from one disk to another, but whenever I do this, I do not only check md5sum checksums, I make precautions to ensure that all data caches are flushed before running a full compare between the original and the copy. The current disk is less 2 years old, and the partition is the sole partition on that drive. The disk is a standard Western Digital server-grade drive. You may prefer buying Best Buy disks yourself, I will leave this to you.
I actually buy my disks from Other World Computing, but they are the same drives that Best Buy sells. I've never run checksums on all my data and, frankly, I'm not going to. It isn't worth my time. If your data is critical and it is worth your time, you need to use professional quality hardware. A single WD drive does not qualify. You need to look at a RAID, at a minimum. Tape would be good too. The professional storage systems are designed to be big, fast, and automatically recover from failures like what you have experienced. They don't come cheap and WD doesn't sell them. Look at Sun, IBM, HP, EMC, those kind of people.
I thought he meant the sort of professional-grade filesystem used in the Unix world, such as perhaps ZFS or ReiserFS, but I may be mistaken.
You can never be too sure. Ask a specific question and you'll get a specific answer.
It is a stretch to call ZFS "professional-grade". It is brand new. There is experimental support for it in 10.5 but it will be a while before it is ready for the general public. In any event, ZFS on a single drive won't be that much better than HFS+ on a single drive. It is only as good as the media. If the media has no redundancy, neither does the file system.
ReiserFS is a Linux file system, not Unix. There is a difference. It has its own set of problems. Agsin, it would be a stretch to claim ReiserFS is sigificantly different or better than any other modern file system.

Similar Messages

Frequent Filesystem Corruption

*+Hello Interwebs!+*
OK, I'll just jump right into the heart of the matter. I'm a tech for my local school district and we are having some problems with our iMac Multimedia Lab. Over the past nine months, 5 of the 22 iMacs have suffered from filesystem corruption. The only recourse for these machines has been to completely wipe out the OS X partition and start fresh (with appropriate restore from Time Machine.)
*_Here's the list for why I know it's file system corruption:_*
The iMac will not boot OS X. I have seen it stop at the "throbber", the progress bar, or just the Apple logo.
Mounting the iMac disk via Target Disk Mode (love that feature) succeeds, but only for the Bootcamp partition. The OS X partition fails to mount.
A verify of the disk reveals the OS X partition needs to be repaired (I've seen invalid sibling entries, orphaned children etc.). Attempting to repair the disk fails. This latest attempt (just yesterday) said that the catalog B trees could not be rebuilt. I should have made more complete notes on what was said each time, but each time until this last one I assumed it was an odd one-in-a-million kind of event. A fluke
 Attempting to repair or rebuild the drives with Drive Genius 3 also fails
So far 98% of the user's files have been recoverable via Data Rescue 3
The physical hard drive does not appear to be failing (retrieving files from the drive does not hang or "beachball", the drive does not appear and disappear in Disk Utility, Finder remains responsive, etc.)
 Normally I'd chalk it up to a series of bad drives. Just happened to be the unlucky guy who purchased a bad run of iMacs, right? Here's where things start to get interesting. I submit to you, the list of oddities:
 The drives verify as good via SMART
 The RAM checks out
 After deleting and re-creating the partition (and re-installing OS X) all problems disappear.
 The corruption has not happened to the same Mac twice
 Bootcamp is installed on the same drive and functions before, after, and during the corruption on the Mac side.
 The Bootcamp partition has not had this issue on ANY of the iMacs
*_Also, to rule out the obvious:_*
 There have been no brownouts or surges
 We seriously doubt a virus, as the malfunctions appear anywhere from simultaneously (two machines went down at the same time about a month ago) to months apart. Plus, the user's documents are restored after reformat, so one would surmise that if it were a malicious program the Mac would keep failing again and again.
 The machines have been in a climate-controlled area
 It has not been the same user affected
 Sometimes the problem occurs after an unavoidable hard shutdown (which occurs only infrequently. These machines are not being excessively powered down improperly. Only what you would expect with a Mac Lab running multimedia five days a week), other times it is completely out-of-the-blue
*_And last but not least, the specs:_*
 iMac 10,1 (21.5 inch)
 Stock drives
 OS X Snow Leopard (latest updates)
 Stock memory
 Joined to our Active Directory infrastructure
 HFS+ file system (not case sensitive, the default for OS X Snow Leopard)
 No out-of-the-ordinary drive maint. programs. Drive Genius was loaded yesterday afternoon (AFTER recovering from the latest failure) to run a verification on all iMacs, but was not installed prior. All Macs, both those that have failed in the past and those that have never failed, passed with flying colors.
*_Frequently used software includes:_*
 iPhoto
 iDVD
 iMovie
 Safari
The machines are also loaded with Parallels 5, which loads the Bootcamp partition into a VM. Parallels was setup via the standard wizard, no oddball configuration or hacks.
TL;DR:
*The OS X partition has become corrupted on five different iMacs, but the physical drives are fine. WHY!?*

I have TechTool Pro: what tests do you run with that?
I'm inclined to believe that you may have a failing drive that's just not being recognised by the tools you have to hand. I'd encourage you to make a couple of secure backups as soon as possible, and consider changing the drive forthwith.
Maybe someone else can offer less scare-mongery advice…

What's wrong with Leopard mail, its allowed in, something corrupting my mac

Hi,
I recently bought a brand new 24 inch iMac and Leopard. Most things were fine until I received an unsolicited email on 28th Nov ...from a
Gemma Hindley FW; Compost like a pro
since then mail has gone haywire. I cannot delete this email at all. I cant receive any emails and I work from home and am really desperate as this is causing me major stress.
The waste paper icon has gone from my mail window and although emails are deleted from the working window, the dont go in the waste bin or the waste bin in the dock.When I quit ad reopen Gemma Hindley reappears.
Many times a completely different window appears when I open mail one that I have never seen before and is very difficult to navigate. many of the icons in the mail header bar are non operative with this window.
Other times Mail wont open, or wont quit, or cant send emails, have nt received any since Gemma this email. Then I went through this forum and found that if I
Open mail go to prefs general and switch check mail "manually.
Force quit mail
Open Mail again go to prefs junk mail and turn off spam filtering
This then allowed me to open the usual mail working window and I received that infuriating email again and no other ones at all. I have sent myself emails and so have others but they have not been received by me at all. the above steps allowed me to send emails.
There is obviously a problem with Leopard mail. Whether or not this email has corrupted my mac I don't know. It looks like it is blocking all my incoming emails.
I am not as adept as many of you on this forum, just a simple user trying to earn a living and not able to do so at present. Help greatly appreciated.
Thanks in advance. George UK

For anyone else reading this thread, it is worth knowing that sometimes an email is, or can be, corrupted thereby jamming the works. The solution above is good, but I just wanted to suggest another one.
If the problem arises, go to an online mail access service, such as Mail2Web.com and login to you mail account there and delete the offending message.
Problem solved.
And George, as this is all entirely voluntary, whinging about no takers may not endear people to you. Besides which, a few minutes of searching on Google would have found you a number of solutions.

Frequent 'Filesystem Corrupt', Invalid File count

I have been getting this message every a couple of days in my MBP or iMac running 10.6.2. It happens/visible only when I runs Disk Utility and Verify Disk. Of course, this brings unsettling point to me when it comes now and then. Not to mention I have to boot from DVD to run disk utility to fix this
Error Message: Invalid file count (It should be xxxxx instead of xxx+1) AND
Error Message: Invalid volume directory count (It should be xxxxx instead of xxxx-1)
Any idea what causes this and what's the impact i.e. do I lose any files?
Thanks!!

Leonard Ong wrote:
Hi Tim,
By default, it is HFS+ Journaled (non-case sensitive). So I have also the same understanding that journalled filesystem should be robust as you wrote it. But the fact that this comes now and then, It created some doubts.
Is this a harmless error message or should I be worried about it. That basically my questions. I do repair when I see this.
It can't be because of disk is failing for a number of reason:
1) I have the same behavior both in my iMac and MBP
2) Both HDD has been replaced with new one recently
3) Both HDD has passed through surface scan from TechTool Deluxe 5.0.6, so no bad blocks
Still a puzzle...
Are you sure that the errors are showing up on both computers when performing either a "Verify Disk" or "Repair Disk" and NOT just a "Verify Disk Permissions" or "Repair Disk Permissions"? Permissions errors are mostly harmless. Filesystem errors (the sort you see when you ask for "Verify Disk" or "Repair Disk" in Disk Utility are not harmless and you should be worried about those.
If so, then either both drives are failing or your drives are being exposed to a strong enough magnetic field to damage their data (and that would have be pretty strong -- a common refrigerator magnet wouldn't do the trick.) In all of my years of working with journaled filesystems (or operating systems with "filesystem logging" which is the same thing) I have NEVER seen a journaled volume have filesystem errors unless it was physically failing.
Journaling will prevent filesystem errors if it's enabled for pretty much every cause except for a physically defective or damaged disk. Here's the short version of how journaling works...
Journaling (aka "filesystem logging") is intended to prevent filesystem corruption... and it's pretty rock-solid.
1) A "journal" (or "log") area is added.
2) A hard rule is established that, under no circumstances may the OS be performing writes to both the journal and the regular filesystem at the same time. One must be flushed before it can work on the other and vice versa.
3) When a write operation is about to happen, the OS writes information to the journal indicating which blocks on the filesystem are about to be changed and what it's about to change. This information is flushed to disk.
4) The OS can then perform the write on the actual filesystem areas it intended to change. These must then be flushed to disk.
5) The journal can now be cleared.
That's pretty much it (simplified). But think about what this does. Normally if something interrupts a write operation (something crashes, a kernel panic, a power loss, etc.) there is something that will still have integrity because the OS will not write to both the journal and the regular filesystem at the same time.
If a failure occurs while writing to the filesystem it's no big deal. When the system boots back up, it notices the journal wasn't cleared so it "replays" the journal. This re-writes any blocks that might only have been partially written thus clearing any chance of corruption on the volume.
If a failure occurs while writing to the journal it's still no big deal. When the system boots back up it notices a corrupt journal, but that means the regular filesystem itself wasn't being touched so the filesystem is guaranteed to not have errors on it (although it does mean the last file you were about to save probably didn't get saved -- and that file wouldn't have written successfully even if journaling were off. At least this way there is no filesystem corruption.)
While it sounds pretty solid (and it is) there's still a potential for corruption, but it's rare. If a drive swings the access arms to a specific track and starts writing data, the assumption is that the write head is above the correct track. If the head is "sloppy" due to wear, then the head may be slightly mis-aligned and bleeding writes into the adjacent track. This will cause filesystem corruption even with journaling enabled.
If these drives came with the computers then the only warranty would be via Apple. If you purchased these drives on your own then they probably came with a pretty good manufacturer warranty -- most drives I've purchased in recent years had at least a 3 year warranty.

Filesystem corruption --- how to prevent?

Sometimes one has to do a hard reset.
When reading about btrfs, its 'copy-on-write'-feature got my attention. 1. Does btrfs completely prevent filesystem corruption on a hard reset?
I'm asking because recently my / (ext4) filesystem on my laptop got corrupted after a hard reset. I blame powertop's suggestion of setting /proc/sys/vm/dirty_writeback_centisecs to 1500, which I'll never do again, I guess. Lost no data, so it's not important. But I have to setup this laptop again --- ext4 or btrfs or something other? (in any case backups will be made --- so btrfs's experimental status doesn't bother me).
2. Are there any filesystem-agnostic system settings which prevent filesystem corruption on a hard reset? If so --- do they have performance penalities or other drawbacks?
Also: 3. What about the 'sync' mount option?
Also: 4. What about other layers like lvm, dm-crypt, dm-raid etc?
Last edited by g3n3r1c (2013-07-28 16:51:23)

cfr wrote:Were you using non-default options with ext4? (Not journalling or changes to the use of barriers etc.)
I was using (wrote it all down ):
Creation:
mke2fs -vt ext4 -E lazy_itable_init=1 -O dir_index,uninit_bg /dev/disk/by-uuid/XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
(for every volume)
/etc/fstab
tmpfs /tmp tmpfs auto,async,noatime,nodev,nodiratime,noexec,nosuid,nouser,rw 0 0
UUID=037c4679-a4ef-42a1-bc9e-17a4c41b6283 swap swap pri=1 0 0
UUID=fd8bf3d6-9693-41c2-95ea-c39b3b0d9443 / ext4 auto,async,dev,exec,nouser,noatime,nodiratime,suid,rw 0 1
UUID=4a8985e4-be31-4757-88cd-5f958e4ba6b9 /boot ext4 auto,async,noatime,nodev,nodiratime,noexec,nosuid,nouser,rw 0 1
UUID=b5826354-772c-462f-86f5-c55b625b11cc /var ext4 auto,async,noatime,nodev,nodiratime,noexec,nosuid,nouser,rw 0 1
UUID=6f47fe27-3cbe-4f72-bd3b-d0d10fc4fff3 /home ext4 noauto,async,noatime,nodev,nodiratime,nouser,rw,acl,x-systemd.automount 0 2
I think this does nothing to journaling.
The system was using a cryptdevice directly on disk without partitions with lvm on top and ext4 on top of the lvms, boot was a partition on an usb key.
When / got corrupted i was still able to access /var and /home with a live medium.
Last edited by g3n3r1c (2013-07-28 22:07:30)

Filesystem Corruption?

Hi, Folks,
While this is indeed conjecture, it appears that the 2.0 series of firmware has a filesystem corruption problem as the amount of content on the device increases - in particular, once many applications have been installed. The behavior that I've witnessed in this circumstance is somewhat progressive. Initially, application install or updates begin to slow down dramatically. User behavior starts to contribute to the problem: when an update might takes more than five minute, folks may try aborting the update or sync, which often leads to a corrupted filesystem. This is easy to identify; powering down then back up again will lead to an "Apple logo" hang. Only a DFU restore will recover from this failure.
Much more significant is that even in the absence of inappropriate user behavior, the filesystem issue continues to worsen over time. For techies, the symptoms appear quite similar to serious fragmentation (or analogously for in-memory issues, garbage collection). I'm beginning to think that the core Flash filesystem code has a bug which starts to yield incorrect FS handling once many files are present. A key symptom is that attempts to restore from a backup will often report that the backup file is corrupted. My best guess is that the backup itself was probably performed properly, but the reported corruption actually may have been caused by the iPhone's filesystem itself becoming corrupted prior to the backup.
After having run into this issue often enough that I've needed to perform ~10 DFU restores on three iPhones (one original 8GB, and two 3G 16GB devices), this indeed appears to be a serious problem. Though my guess is that the iPhone's filesystem code is the root cause, I'm interested in hearing feedback from other folks who may have encountered this issue. Are the problems which you've seen consistent with this hypothesis?
Cheers!
Mark

Hello!
I'll add one more interesting data point. I've since found that I have had two different backup files that take well over an hour to restore onto a newly DFU-restored phone. On both of these files, the backup would proceed fairly quickly to a specific point (~50% on one file, and about 75% on the other file), and then would stop (the progress bar kept spinning, but with no forward progress) for about 1 hour, and then would continue and ultimately succeed. It's intriguing that repeating this process with each of these files yielded exactly the same "pause point".
While the thought of a timeout occurring is still quite appropriate, this further suggests that if the core filesystem code is at fault, the error might be induced by a NAND/iNAND error condition (NAND Flash always has errors, by design; Flash filesystems are supposed to handle those errors gracefully). This deterministic very-long-delay condition suggests that (normal) Flash errors just might be confusing the filesystem driver.
FYI!
Mark

Solution to Sound flowers corruption of MAC Audio drivers

Solution to Sound Flower corruption of Mac Audio drivers
I recently upgraded/ repaired my 2011 Mac Book Pro. I went from 4GB to 16 GB of ram. I also removed the Super Drive and 750 GB dual partition hard drive. I replace them with a 2tb single partition drive for the MAC OS system, and a 480 dual partition SSD drive. I allocated 450 for the Boot camp PC drive and remainder for an SSD Mac OS drive. During this process, I also repaired my corrupted Mac Audio drivers. Here is how I repaired them.
#1………..You will need a bootable external hard drive which contains a current copy of your Applications, Data, and Network settings. You should already have this drive or drives with partitions containing boot PC boot camp and Mac OS. If you do not, you need to make one now.
I used Carbon Copy V5 to make a bootable copy of Mac OS and WinClone 4 to make a bootable copy of PC partition.
It does not matter that the Mac Drivers are currently corrupted if you are making a bootable copy of your internal drive. Just created the external bootable drive. For me, a nearly full 750GB drive took me over 4 hours to create.
#2……….Once the external bootable drive is created, you will need to restart your computer while holding down the option key. When it asks which drive to boot from, choose the External Mac recovery drive. Make sure this new drive is working properly and all your information is there.
#3……….Now that you are operating from external drive, use disk utility to select the internal mac OS drive and erase it. I have a separate drive for My PC boot camp, so I will keep this as a single partition drive for Mac OS.
#4………Download a new copy of the MAC OS system onto internal drive. During this process DO NOT sign in into you Apple Id account. At this point you do not want Applications or data moving over onto your new Mac OS. Once installation is done, restart computer.
#5…….The computer will now boot from the internal drive. You should see basic Applications in Launch Pad. Go ahead and play something from the internet ….you will notice your Mac audio drivers have been restored.
#6 …….Now it is time to add your Applications you have purchase over the years. Without bringing over Sound Flower App or its Folder. You do this by opening up an Apps windows for the internal Mac drive and another one for the external Mac drive. At this point you will manually drag all Apps from external drive to internal drive. However take your time and DO NOT dray over the sound flower app or its folder. If there are other Apps you to leave behind, do not drag them onto the new internal drive. Once you have verified you dragged over the Apps, restart your computer
#7 ………At this juncture, you can now use the migration assistant to move over your data and network settings. Just be sure to uncheck the migrate Applications box. If you forget, you are screwed and must start all over. I know from experience. Note the migration of data and network settings took me about three hours.
Final step …….Now that your Audio drivers, Applications, Data, and network settings are restored, you need to schedule time to update your external bootable Mac OS drive, so it no longer contains corrupt Audio drivers. Now enjoy your computer and pass solution on.
Xie xie
Dmatcyt

Ahh... Sorry for that. That's true. I took it for granted before checking Apple Specs.
So, What's about audio in specs of 15-inch MacBook Pro (MD103LL/A)?

Snow Leopard corrupted main Mac HD,..can't boot to it HELP Please!

Boy did I have a day today!!
A couple of days ago, I achieved and re-installed OSX 10.5. Upgraded to 10.5.8. Then, I installed Snow Lep and upgraded to 10.6.2. Now, I did all of this in safe boot since at the time, my graphics card was broken. I got a new one today and everything was fine. After I installed all the OSX stuff, some of the programs did not work, such as iCal (said this version does not work with the current OSX version) Spotlight (no response) and Preview (no pictures, just a blank screen).
I called Apple and they told me to re-install SL. I re-started from the CD and the install started. BUT, then a window came on saying the installation failed. So, I restarted again, and same thing. Then, I decided I just leave it for now and just restart and log back in. WRONG! No more Mac HD icon. I now was only able to boot from the CD (no Mac HD icon). I then partitioned part of my other internal HD and tried to install SL on that. It failed on that one as well.
THEN I tried to install 10.5 AND, it worked. Sorry for that long explanation.
Now, I don't think I can get back into my main Mac HD( Can't boot from it). I can get into it from this partitioned one to get files. What are my options now? Can I try to do a repair? If not, I guess I have to do a clean install of 10.5? If that's what I have to do, how would I go about that? Disk Utility, select Mac HD and erase? If yes, which erase? Don't erase Data? Zero out Data? Or is there anything I can do to fix my main drive from the internal Im currently on so I can boot back in?
Thanks in advance for help! Greatly appreciated!!
I get the feeling that I got a corrupt SL install CD.

In a situation that complex I can tell you what I would do (after roughly 25 years doing tech support). I would get all the data files off the drive to another hard drive. I would then back them all up to a second hard drive and I would verify that they are there and that each of those data drives was "good" using Disk Utility and Disk Warrior. Once I had all the data, including email, desktop files, documents, music, pics etc etc and I knew they were backed up independent of the problem drive I would wipe the drive entirely - partition it. Then I would erase it with zeros - a potentially long process but worth the effort IMHO here. Then I'd reinstall 10.5, update fully and go to snow leopard if that's what you want to do. In that process I'd search on any hardware that could be problematic as well as third party software that could have issues. Whether it's 10.5 or 6, I'd update fully and then connect one of the external data drives and copy back documents and other data after all your applications were installed and updated and known to be working. That is a long, obnoxious process. I keep my own "time machine" by having an external boot backup that I only overwrite every once in a while when all is acting solid. A second boot drive backup is made regularly before any major app installation or before any OS update. That way can easily roll back to a recent state or if needed roll back a bit further. All my data are backed up to external drives with the critical stuff backed up twice. It's easier than it sounds with CCC or SuperDuper and in the long run can save hours upon hours. I've been in your shoes and I wish you the best of luck. As long as your data is intact, everything else is just a time consuming pain in the butt.
your SL install should do a thorough checksum verification before it installs. it's not impossible it's still corrupt but unlikely ...assuming you let it do the entire verification.

Mavericks 10.9.1 and graphics corruption with mac pro early 2009

Mavericks 10.9.1 is causing graphics corruption with my mac pro early 2009.
ATI Radeon 4870 quit working altogether. Replaced with ATI Radeon 5870 and having different and weird graphics corruption issues.
Turned off screensaver because once I got all pink screen with occasional snowflakes flickering on screen. That has stopped now but other things still happening.

This procedure is a diagnostic test. It makes no changes to your data.
Please triple-click anywhere in the line below on this page to select it:
defaults read /Library/Preferences/com.apple.SoftwareUpdate | pbcopy
Copy the selected text to the Clipboard by pressing the key combination command-C.
Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window by pressing the key combination command-V. I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key after pasting.
Wait for a new line ending in a dollar sign ($) to appear below what you entered.
The output of the command will be automatically copied to the Clipboard. If the command produced no output, the Clipboard will be empty. Paste into a reply to this message.
The Terminal window doesn't show the output. Please don't copy anything from there.
If any personal information appears in the output, anonymize before posting, but don’t remove the context.

Premiere Pro CC 7.2.1 Crashing and Corrupting on Mac

This started shortly after updating from 7.1, to 7.2, to 7.2.1 almost back to back. I cleaned out everything and re-installed, updated all CUDA drivers, and crashed through the forum without finding a specific cure for my problem. I use Digital Rebellion Crash Analyzer to tell me what is happening and this is what it said for the past 3 crashes.
1st Time.
User Interface Crash
     Relevant Line = 1 com.adobe.UIFramework.framework    0x00000001048184ef UIF::TimeBarControlImpl::Enable(bool) + 79
2nd Time.
     Relevant Line = 0 com.adobe.HandlerTimeline.framework    0x000000010bdd60f6 HandlerTimeline::TrackViewArea::SetVisibleBaseTime(dvamediatypes::TickTime const&, double const&, bool) + 54
3rd Time.
     Relevant Line = 1 com.adobe.UIFramework.framework    0x00000001048184ef UIF::TimeBarControlImpl::Enable(bool) + 79
I'm hoping someone with a Mac / Premiere background will be able to link these 3 crashes to one cause, but they would only solve half of my problem.
I believe Auto Save was corrupting my project Save files for the past 5 days.   I had Autosave set to 20 minute intervals before and after Saving and closing my project I was unable to open it again. Even after cleaning out the media cache and resetting Premiere (re-installing) back to defaults the projects themselves would not open without freezing during loading of media. I was forced to create a new project and reimport the previous one to advance in my editing process. After disabling auto-save, I can now save a project and re-open it safely (most of the time), but it doesn't help when the program itself crashes.
Any and all help would be appreciated.
Thanks,
Corn
Computer Specs: 2012 MacBook Pro (non-retina). Processor 2.7 GHz Intel Core i7 . Memory 16 GB 1600 MHz DDR3 . Graphics NVIDIA GeForce GT 650M 1024 MB . Software OS X 10.8.5 (12F45). CUDA Driver Version 5.5.28 (Updated 10 hours ago).

I'm not sure what the TimeBarControl is (not a developer...) but my best guess is that it's the widget that the scrub bar in the Timeline and the Monitors is built on. As for what could be causing the crash, I'd only be guessing. A few things I'd try to isolate:
Whether the crash is limited to certain sequences, or possibly just one.
Whether it's tied to certain content: a single clip, a multicam or nested sequence, ...
Given the TimeBarControl and SetVisibleTimebase refs, whether it's associated either with the way you have things set up for one or more of the scrub bars (zoom level, timecode display mode, Show Audio Time Units...) or with the actual timebase of the content or the sequence (unusual frame rate, use of Interpret Footage to specify the frame rate of content).

Filesystem supported by Mac OS X and Linux

I got Windows, Linux and Mac OS X on my system. I'd like to share files on a partition that Linux and Mac OS X can access, but not Windows. So far I've used FAT32, but obviously Windows can access that, so I'm looking for something else.
Is there any filesystem that fits these requirements?

try to hide the FAT32 partition, windows doesn't mount hidden partitions, linux still can mount them (I don't know if automount stuffs take care about the 'hidden' flag), but I don't know if it will be visible from Max OS X.
To hide a partition:
- reboot
- in the GRUB menu, type 'c' to enter the GRUB's command line
- type "hide (hd0,0)" (replacing the partition with your FAT32 partition)
- 'escape' to return to the menu
The hidden status is a flag in the partition table, so the partition will be hidden until you unhide it (with the "unhide" command from the GRUB's command line).
I'm not sure this will do the job, but it is easy to try.

Screen corrupt 2010 Mac Mini HDMI (Static/Snow/White Noise)

I've just upgraded my 2010 mac mini to Lion, this is connected to a projector via HDMI to a Denon amp. Before the upgrade there were no issues the picture was completely clear and was usable in all resolutions.
Now that lion has installed the display is not usable, all I can see is 99% static and a corrupt row at the top of the screen where the menu bar can be just about made out.
Nothing has changed to the setup other than installing Lion, if I use screen sharing I can see the desktop happily, the OS is fully responsive.
I haven't yet tried to connect it to another monitor as I don't have a spare, I'll attempt this over the weekend, has anyone else experienced this issue?

I've got a similar issue and seems like a few others also have problems as well
https://discussions.apple.com/thread/3196192?tstart=0
My Mac Mini wont boot to HDMI and Screen Sharing wont link in since Lion upgrade......
A makeshift solution is unplugging the HDMI during boot up, give it 30sec's - 1min...plug it back it and then it should come up.... works for me for now.....
hopefully someone has a more permanent solution or mac solves the issue ASAP....
Cheers

Reader-enabled fillable form is corrupted on Mac

I created a Reader-enabled (extended) fillable form that can work fine if filled out in and saved in Reader. But some users are opening and filling out the form in their browser. When it is returned to me, it is unopenable. If the form is forwarded to an android phone, the file opens fine. If the form is then forwarded back to my e-mail I can open it. What is happening? What can I do to prevent the corrupted form?

You are going to have to find out what apps are being used on the Mac and android phones to fill-in the form. Unfortunately most users just click on the PDF and use what ever opens the PDF and might not even know what app is being used.
Apple's "Preview" is notorious for corrupting PDF forms. Script to Fix Mac OSX Preview.app Form Fill and Save

Wav files becoming corrupt on mac os leopard 10.5.8 ?

Model Name:          MacBook
Model Identifier:          MacBook2,1
Processor Name:          Intel Core 2 Duo
Processor Speed:          2 GHz
Number Of Processors:          1
Total Number Of Cores:          2
L2 Cache:          4 MB
Memory:          2 GB
hi guys , i am facing a really strange problem on my mac os leopard . .something seems to be eating up my "wav" tracks from my downloads folder. .original files bought from beatport.com are being corrupted in a way that the files are being reduced in size and when played only a part of the whole file plays , the rest of it is blank. this is creepy and has been bothering me too much cuz this has happened to 3 of my "wav" audio tracks. . all i do with the files is either play them on traktor pro or analyze them with mixed in key. . what could possible be the problem causing this. . please help !!!

Could be many things, we should start with this...
"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)

Corrupt Indesign Mac SDK on Adobe Site

Has anyone tried downloading the Mac SDK from adobe recently. I have tried 5 times from various Mac's and using a variety of browsers and always end up with a .dmg with will not mount, claiming an invalid checksum.
If anyone can provide an alternative link to a good SDK i would be greatfull.
btw: the Win SDK downloads and un-zips just fine.
Mark

Hello Frank. I suspect i may have a cached file issue with my ISP. I am in Australia, and no matter what i do i cannot bypass their cache, and get a corrupt file every time.
If i provide a temporary upload link could u please upload the .dmg file to me. Adobe support has not contacted me on this and phone support is useless.
Regards
Mark

Filesystem corruption in Mac OS X

Similar Messages

Maybe you are looking for