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Syslogd makes high CPU Load and standby mode doesn´t work.

After updating to Leopard I see high CPU Load caused by syslogd daemon(40%-80%) and my MacBook has problems with standby mode. After stopping the white LED lights and CPU fan speeds up. Is there any chance to fix these problems?

MacBook, Mac OS X (10.5), 2GIG RAM, 160 GIG HDD, USB & Firewire Devices.

Posted on Oct 29, 2007 4:37 AM

Reply
98 replies

Nov 17, 2007 3:58 PM in response to meagain1

Don't try to make those go away. (Not that you really could, anyway.)

kernel_task is the root task for the entire OS (the process that creates all others) and WindowServer is what draws and manages the windows on the screen. Rather important functions, those.

Remember folks, it applies as much to your Mac as anything else- if you don't know what it does or why it's there, LEAVE IT ALONE!

Nov 19, 2007 3:16 PM in response to bookmac

I've had this same problem too: syslogd will take up all the available processor and start chewing up RAM. A very temporary fix is to find the program trying to do all the writes to the log file, kill it, and then "sudo killall syslogd". Unfortunately, there are two problems with this.

1) Finding the program is trial and error, because none of the messages are ever actually written to the log files. Several people above have suggested looking for some message repeated thousands of times in the logfiles, but I've dug through all of them and couldn't find one.

2) It only works until some other application starts making syslogd misbehave again (syslogd automatically relaunches). When I first experienced the problem I had a bunch of applications running. Then I quit them all opened them one by one to see if I could isolate the problem. Unfortunately, I've found that Microsoft Word 2004, XTorrent, and (most damningly) Time Machine all cause this problem. There are undoubtedly others that do too.

Guess we'll all just have to wait for 10.5.2...

Nov 19, 2007 4:34 PM in response to bookmac

Glad to hear that is not me that is going crazy with this problem... Have removed and/or not used just about every program and widget on my system with the same results... I can quit syslogd through activity monitor -- at least for a while... Otherwise it runs constantly...

Thanks for the info and possible solutions.. none of which have worked for me...

Nov 20, 2007 5:07 AM in response to bookmac

Hey, also having this problem for a few weeks, but finally annoyed the **** out of me this morning. Using all of your advice, I found the following error in my console.app since Leopard was installed. Always the same one:

Nov 18 14:51:48 mDNSResponder[24]: Task Scheduling Error: Continuously busy for more than a second
Nov 18 14:51:48 mDNSResponder[24]: Task Scheduling Error: NewQuestion kykboy.members.mac.com. (SOA)
Nov 18 14:51:48 mDNSResponder[24]: Task Scheduling Error: m->NextCacheCheck 200935
Nov 18 14:51:48 mDNSResponder[24]: KQ SSLHandshake failed: -9806

I have turned Syncing off along with any iLife, iWork apps, but it is still pegging out my CPU (i.e., syslogd).

Anyone know what this error might mean?

Thanks in advance for any help or advice.

Mike

Nov 26, 2007 10:16 AM in response to bookmac

Wanted to add my voice to this thread. I am having the same issues as everyone else. I have yet to find the culprit for the logging going out of control.

Killing syslogd works as a temporary fix. Giving me about 2 minutes of fan-free peace, but, like the process comes back from the dead thereafter causing the same headaches.

I noticed that the discussion thread has been marked as "answered" yet I see no real solution in any of the posts. Has anyone had any luck getting thru to Apple, or finding a permanent fix for this vexing issue?

Thanks!,
dc

Nov 28, 2007 1:48 AM in response to bookmac

Hi all. Same problem here.
I've the mbp 2,2 Ghz since last week. The first time I've done something via shell to try solving this problem. I'd many applications installed. Without a cause-effect relation It stopped (I had mDnsReponder using cpu too).
Then I've reinstalled leopard and all was ok until now.
Today I've installed only x-lite (www.countherpath.com) that crashed.

The strange thing is that I've a costant ethernet simmetric traffic: about 40 KB/s outbound and inbound.

When I'm not connected via lan cable It is all ok...

Strange!

Nov 28, 2007 12:06 PM in response to bookmac

I've had the same problem, but then something new (but i'm sure related) happened. Today, my CPU went to 100% usage, but when I opened Activity Monitor, the culprit wasn't evident....that is, the few apps that I had open, and other processes that were running didn't show more than maybe 10% total CPU usage.....however, at the bottom, my little red/green CPU graph was showing 100% usage! Anyone have an idea how to figure out which process is the CPU hog if Activity Monitor isn't showing me?? The only thing that's working for me is restarting.

Syslogd makes high CPU Load and standby mode doesn´t work.

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