Welcome to the MacNN Forums.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

You are here: MacNN Forums > Software - Troubleshooting and Discussion > Mac OS X > log to check what is taking my Mac down?

log to check what is taking my Mac down?
Thread Tools
Grizzled Veteran
Join Date: Mar 2000
Location: London
Status: Offline
Reply With Quote
Nov 6, 2013, 07:36 PM
 
Hi All,

For the past week, I've been coming back to my Mac (Mac Pro running Mountain Lion) to find that it's crashed. Unusual, as it's usually up and running 24/7, flawlessly, for quite a long time now (the new machines can't come quickly enough...).

I've checked all the drives, everything seems good, the OS is up to date. Not sure how to run diagnostics on any of the other hardware.

I can't remember which logs to check to see what may have taken the machine down, can anyone point me to the right place to check? (Crashreporter in Console would seem to me to be the right place, but it's empty).

Anything else I might have missed that would be good to check?

Thanks in advance for any advice.

Cheers!

Chas
     
Clinically Insane
Join Date: Nov 1999
Location: 888500128, C3, 2nd soft.
Status: Offline
Reply With Quote
Nov 6, 2013, 07:48 PM
 
If you look at the regular system log, you should be able to find some hints.
     
chasg  (op)
Grizzled Veteran
Join Date: Mar 2000
Location: London
Status: Offline
Reply With Quote
Nov 6, 2013, 08:12 PM
 
Thanks for that. I can't interpret what I've seen, does this mean anything to you? (last few entries before I rebooted several hours later):

Nov 6 19:16:46 G8 kernel[0]: jnl: disk11s2: close: journal 0xffffff802f2a9330, is invalid. aborting outstanding transactions
Nov 6 19:16:46 G8 kernel[0]: jnl: disk9s2: close: journal 0xffffff802f2a9000, is invalid. aborting outstanding transactions
Nov 6 19:16:51 G8.local mDNSResponder[58]: ActivateLocalProxy: No service for interface utun0

It all looks bad to me, just don't know what it means :-)

Cheers, and thanks again for the pointer.

Chas
     
Clinically Insane
Join Date: Nov 1999
Location: 888500128, C3, 2nd soft.
Status: Offline
Reply With Quote
Nov 6, 2013, 08:22 PM
 
Go back a little bit further.

That looks like trouble with the disk journaling, but it's on two separate drives.

See if you can find out what it's trying to do just before it discovers that the journals are weird.
     
chasg  (op)
Grizzled Veteran
Join Date: Mar 2000
Location: London
Status: Offline
Reply With Quote
Nov 6, 2013, 08:31 PM
 
Ah, thanks for that. Zillions of entries, but lots of "fail" and "error writing the journal header" and "media not present" with reference to disks. I'm not close to familiar enough with the notation and references to be able to gain any insights.

As it's a disk based issue, I'm going to dismount a bunch (I've got a 5-disk jbod box mounted via esata, as well as 6 internal disks) and see what happens.

A Unix Sherlock I ain't, so it'll be the ole "stumble around" technique, but it's a start, and I appreciate the help.

Cheers!

Chas
     
   
Thread Tools
Forum Links
Forum Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On
Top
Privacy Policy
All times are GMT -4. The time now is 05:42 AM.
All contents of these forums © 1995-2015 MacNN. All rights reserved.
Branding + Design: www.gesamtbild.com
vBulletin v.3.8.8 © 2000-2015, Jelsoft Enterprises Ltd., Content Relevant URLs by vBSEO 3.3.2