You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

So aslmanager taking 99% and Console.app hangs when started

So aslmanager taking 99% and Console.app hangs when started

anybody know why aslmanager needs 99% of CPU and 2+ GB footprint?

MacBook Pro Unibody 2.53 GHZ, Mac OS X (10.5.6)

Posted on Dec 18, 2008 8:00 PM

Reply
39 replies

Jan 9, 2009 8:49 PM in response to V.K.

I was having a similar problem. aslmanager was at 30 to 99% in the processes menu (in iStat Pro). So I tried your suggestion and it worked... temporarily. A few days later, the problem is back, yet the asl.db file is not there. How do I fix this problem? Restarting did nothing.

(what is aslmanager anyways?)

Jan 13, 2009 6:59 AM in response to Robert Nicholson1

Similar problem here. Almost daily aslmanager starts up taking over my MacBook (99% of CPU and almost 1GB of RAM). This happens even if I'm running on battery and of course it drains it very quickly. Another side effect is heat. Fan is constantly on and the case get pretty hot.
Temporary solution would be to simply stop aslmanager from Activity Monitor or Terminal.
I still don't know what is causing this.
Some info on the process here: http://www.stat.ucla.edu/cgi-bin/man-cgi?aslmanager+8

Jan 14, 2009 5:20 AM in response to Robert Nicholson1

I am having the same problem here. /var/log/asl.db does not exist. However aslmanager seems to constantly work on a file LongTTL.new in /var/log/asl. The file is binary so I have no clue as to what is going on. This file grows insanely large 100s of MB. I am running Leopard 10.5.6 on an Intel MBP.

Any suggestion on how to fix this are highly welcome as battery life has gone to **** and my lap gets fried when I use my machine.

Thanks.

Jan 14, 2009 7:55 AM in response to Haje

Alright, more diagnostics: after shutting up for an hour, aslmanager is active again at 99% cpu usage. It s working on a new LongTTL.new file, currently at 300 MB. The previous file, which was renamed to LongTTL.U0.asl after completion still exists. Anyone any input? Apple? Where are the geniuses?

Cheers,
Haje

Jan 14, 2009 8:48 AM in response to Haje

Final report: again one hour later aslmanager has finished and an updated file LongTTL.U0.asl was created.

So what is happening apparently is that aslmanager creates the file LongTTL.U0.asl every two hours and it takes one hour to generate the file. The results in the 100% cpu usage occurring 50% of the time.

This must be a bug. I already filed a report, so if you have the same issue, please tell apple!

Cheers,
Haje

Jan 14, 2009 2:45 PM in response to Robert Nicholson1

Most of the time, restarting my iBook takes care of the problem for a few hours to a day. It came back in the middle of the night last night; It made the computer hot enough to turn the fan on and wake me up at 4 am. It took a while for the iBook to respond to me so that I could shut the computer down. I guess the best we can do now is just inform apple of the issue and wait for an update. I haven't been able to find a fix for this anywhere. Until a fix is found, I'll just restart as soon as I see aslmanager show up in iStat Pro.

Jan 14, 2009 4:50 PM in response to Robert Nicholson1

ok, i found a solution that worked for me. this may or may not be the problem you are having but give this a shoot. i think in my case the asl database got corrupted. unline tiger and below this database is not stored in asl.db in leopard. in leopard, the entire /var/log/asl directory is the database. so to remove the database and start from scratch, you need to

sudo launchctl stop com.apple.syslogd
sudo launchctl stop com.apple.aslmanager
sudo mv /var/log/asl/* ~/tmp (you might as well use rm but i wanted to be safe)
sudo launchctl start com.apple.syslogd

For good measure I also ran the maintenance scripts:

sudo periodic daily weekly monthly

My machine has been dead quiet for hours now. darn, it's back to the kitchen for making my toast. 🙂

so, what did we learn? Mac, PC - same thing; both are great until you have problems. only with pc's you have a lot more resources to tap into...

Cheers,
Haje

Jan 16, 2009 6:43 PM in response to mdfrancois

I have come across another possible cause. Had the same issue and tried the fix by Haje. That cured the runaway aslmanager problem but then noticed the same issue with a another file named iavd. It was all over, from 20% to 100% and moving up and down very rapidly. I determined this file was part of iAntivirus that I had recently installed. I went to their website and found others are having issues with v. 1.3. They recommended upgrading to v. 1.32 which I did and the problem is gone.

So aslmanager taking 99% and Console.app hangs when started

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.