Falling back to default Mach exception handler

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Level 1

0 points

Falling back to default Mach exception handler

Hi,

Since upgrading to Snow Leopard I keep getting this message in the console after startup. Is it anything to worry about?

+com.apple.launchd.peruser.501[239] (com.apple.ReportCrash) Falling back to default Mach exception handler. Could not find: com.apple.ReportCrash.Self+

Thanks,

Tom.

MacBook Pro 13", Mac OS X (10.6)

Posted on Sep 10, 2009 3:55 AM

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Answer 1

seh2000

Level 1

10 points

Oct 2, 2009 8:11 PM in response to teecee72

I see same message after I upgraded to SL...
Ideas?

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Answer 2

baltwo

Level 9

62,386 points

Oct 2, 2009 11:22 PM in response to teecee72

Update to 10.6.1. I get no such Console messages.

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Answer 3

baltwo

Level 9

62,386 points

Oct 2, 2009 11:22 PM in response to seh2000

Update your profile info and then follow my advice to the OP.

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Answer 4

hungryjoe

Level 2

250 points

Oct 2, 2009 11:28 PM in response to baltwo

baltwo wrote:
Update to 10.6.1. I get no such Console messages.

I'm running 10.6.1 but I still see the same message in my console. Any thoughts why?

Message was edited by: hungryjoe

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Answer 5

K T

Level 7

23,889 points

Oct 2, 2009 11:34 PM in response to hungryjoe

The solution seems to involve fixing the permissions on your root directory...

Open "Terminal" (in your Applications > Utilities folder) and type:

sudo chown root:admin /

enter your root password when prompted.

Even if this isn't the proper fix, this command should be harmless as long as you type it correctly. I recommend copy and paste.

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Answer 6

hungryjoe

Level 2

250 points

Oct 2, 2009 11:40 PM in response to K T

The owner of the / directory on my system is already root:admin

ls -ld /
drwxrwxr-t 30 root admin 1088 Sep 1 19:03 /

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Answer 7

baltwo

Level 9

62,386 points

Oct 2, 2009 11:55 PM in response to teecee72

Further info indicates that the com.apple.ReportCrash.Self.plist file should reside in /System/Library/System/Library/LaunchAgents/. If it isn't there, I suspect a hosed installation. Either reinstall 10.6, if the update to 10.6.1 doesn't fix it, or use Pacifist to extract it from the install disk.

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Answer 8

hungryjoe

Level 2

250 points

Oct 3, 2009 1:11 AM in response to baltwo

baltwo wrote:
Further info indicates that the com.apple.ReportCrash.Self.plist file should reside in /System/Library/System/Library/LaunchAgents/.

I suppose that you meant /System/Library/LaunchAgents/ because in my case at least, that is the directory they are located in.
In any case to answer the original poster's question - in case the crash reporter is working fine, I don't suppose this to be a critical issue so there's probably no need to worry.

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Answer 9

baltwo

Level 9

62,386 points

Oct 3, 2009 1:21 AM in response to hungryjoe

i thought I erased the additional /System/Library/ item, but either I or the forum's SW got screwy. Thanks for catching it.

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Answer 10

Tony T1

Level 6

10,247 points

Oct 25, 2009 4:49 PM in response to teecee72

Not sure if this is the correct fix, but: http://www.insanelymac.com/forum/index.php?showtopic=192563

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Answer 11

Tony T1

Level 6

10,247 points

Nov 11, 2009 6:23 AM in response to K T

sudo chown root:admin /

K T, Thanks for this. It didn't fix the log error "Falling back to default Mach exception handler",
but it did fix the problem I had with slow shutdown and startup.

I also noticed that the 'sticky bit' was not set on '/' so I also ran "sudo chmod u+t /", setting the mode to: 1775 (drwxrwxr-t)

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