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Will Mayall

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I have a server running Kerio Connect that has "frozen" two Sundays in a row. When I say frozen, I mean completely unresponsive including un-pingable.

I have yet to find a clue in logs. The only clue is that it has happened two Sundays in a row. The only event I can think of on a Sunday is the Kerio backup starting a new cycle. I upgraded to the latest Kerio Connect release the week before the problem started.

I don't have any direct evidence that the problem is caused by Kerio Connect but it is the most active task on the server. I'm currently focusing on Kerio Connect for lack of any other suspects.

Once the server comes back up, I can find no problems, everything including the drives test fine.

Mac OS X Server 10.5 latest updates installed
Kerio Connect 7.0.1

The server has been rock solid for years and I'm currently stumped.

Any thoughts?

Thanks,

Will Mayall
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j.a.duke

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mayall wrote on Sun, 18 April 2010 13:34
I have a server running Kerio Connect that has "frozen" two Sundays in a row. When I say frozen, I mean completely unresponsive including un-pingable.

I have yet to find a clue in logs. The only clue is that it has happened two Sundays in a row. The only event I can think of on a Sunday is the Kerio backup starting a new cycle. I upgraded to the latest Kerio Connect release the week before the problem started.

I don't have any direct evidence that the problem is caused by Kerio Connect but it is the most active task on the server. I'm currently focusing on Kerio Connect for lack of any other suspects.

Once the server comes back up, I can find no problems, everything including the drives test fine.

Mac OS X Server 10.5 latest updates installed
Kerio Connect 7.0.1

The server has been rock solid for years and I'm currently stumped.

Any thoughts?

Thanks,

Will Mayall


Will,

Can you give me a little more detail? What model are you running the server on? And is there anything in the cron or other scheduled jobs that runs at or before the freeze?

What other services are you running on the server? And at what time are you freezing? To the best of your knowledge, is the time the same each week?

Finally, are you hard powering down to recover?

Thanks.

Cheers,
Jon
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Will Mayall

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Hi Jon, thanks for responding.

Power Mac G5 Quad, 4GB, RAID 0

I don't think there are any cron jobs running then (not that I have scheduled). I'm no cron expert and I'm not sure how to check.

There's web, afp, and Kerio. I'm sure there are others, but those are the primary ones.

It freezes at 1am which is also when Kerio is scheduled to do the backup. Yes, I am hard powering down. It is headless and I have been rushed and unable to see if anything is on-screen.

I've just looked at the logs for last night and I get the sense that it went to sleep! I have no idea why it would be doing that since it is not scheduled to sleep.

Here's the log last night right before it shutdown. I assume that Kerio starts the backupd process.

Apr 18 01:00:03 mail /System/Library/CoreServices/backupd[78519]: Starting standard backup
Apr 18 01:00:04 mail /System/Library/CoreServices/backupd[78519]: Backing up to: /Volumes/Mavericks Backup/Backups.backupdb
Apr 18 01:03:06 mail kernel[0]: SMU_Neo2_PlatformPlugin core dump:
Apr 18 01:03:06 mail kernel[0]: IOHWControls:
Apr 18 01:03:06 mail kernel[0]: [0] "CPU B INTAKE" Type:"fan-rpm" Id:3 TGT:3104 CUR:3103
Apr 18 01:03:07 mail kernel[0]: [1] "CPU A PUMP" Type:"fan-rpm" Id:6 TGT:3600 CUR:3663
Apr 18 01:03:07 mail kernel[0]: [2] "CPU B PUMP" Type:"fan-rpm" Id:7 TGT:3600 CUR:3517
Apr 18 01:03:07 mail kernel[0]: [3] "DRIVE BAY A INTAKE" Type:"fan-rpm" Id:0 TGT:1000 CUR:1016
Apr 18 01:03:07 mail kernel[0]: [4] "CPU B EXHAUST" Type:"fan-rpm" Id:5 TGT:3200 CUR:3196
Apr 18 01:03:07 mail kernel[0]: [5] "EXPANSION SLOTS INTAKE" Type:"fan-rpm" Id:8 TGT:1560 CUR:1548
Apr 18 01:03:07 mail kernel[0]: [6] "CPU A INTAKE" Type:"fan-rpm" Id:2 TGT:3104 CUR:3101
Apr 18 01:03:07 mail kernel[0]: [7] "CPU A EXHAUST" Type:"fan-rpm" Id:4 TGT:3200 CUR:3196
Apr 18 01:03:07 mail kernel[0]: [8] "BACKSIDE" Type:"fan-rpm" Id:1 TGT:1100 CUR:1099
Apr 18 01:03:07 mail watchdogtimerd[96]: Automatic reboot timer disabled for sleep.
Apr 18 01:03:08 mail kernel[0]: IOHWSensors:
Apr 18 01:03:09 mail kernel[0]: [0] "CPU A0 POWER" Type:"power" Id:13 CUR:26.19749 W
Apr 18 01:03:09 mail kernel[0]: [1] "CPU A1 POWER" Type:"power" Id:23 CUR:32.8206 W
Apr 18 01:03:09 mail kernel[0]: [2] "CPU B0 POWER" Type:"power" Id:33 CUR:39.23514 W
Apr 18 01:03:09 mail kernel[0]: [3] "CPU B1 POWER" Type:"power" Id:43 CUR:53.4172 W
Apr 18 01:03:09 mail kernel[0]: [4] "CPU B1 CORE CURRENT" Type:"current" Id:46 CUR:43.53760 A
Apr 18 01:03:09 mail kernel[0]: [5] "CPU B1 VCORE" Type:"voltage" Id:40 CUR:1.13824 V
Apr 18 01:03:09 mail kernel[0]: [6] "CPU A0 VCORE" Type:"voltage" Id:10 CUR:1.9984 V
Apr 18 01:03:09 mail kernel[0]: [7] "CPU A1 DIODE TEMP" Type:"temp" Id:21 CUR:75.50176 C
Apr 18 01:03:09 mail kernel[0]: [8] "MLB INLET AMB" Type:"temp" Id:9 CUR:27.61440 C
Apr 18 01:03:09 mail kernel[0]: [9] "TUNNEL HEATSINK" Type:"temperature" Id:2 CUR:31.32768 C
Apr 18 01:03:09 mail kernel[0]: [10] "CPU B1 DIODE TEMP" Type:"temp" Id:41 CUR:99.14336 C
Apr 18 01:03:09 mail kernel[0]: [11] "CPU A1 CORE CURRENT" Type:"current" Id:26 CUR:27.38400 A
Apr 18 01:03:09 mail kernel[0]: [12] "DRIVE BAY" Type:"temperature" Id:4 CUR:36.0 C
Apr 18 01:03:09 mail kernel[0]: [13] "CPU A1 VCORE" Type:"voltage" Id:20 CUR:1.10784 V
Apr 18 01:03:09 mail kernel[0]: [14] "CPU B0 VCORE" Type:"voltage" Id:30 CUR:1.9664 V
Apr 18 01:03:09 mail kernel[0]: [15] "BACKSIDE" Type:"temperature" Id:6 CUR:42.8192 C
Apr 18 01:03:09 mail kernel[0]: [16] "TUNNEL" Type:"temperature" Id:1 CUR:35.0 C
Apr 18 01:03:09 mail kernel[0]: [17] "CPU A0 DIODE TEMP" Type:"temp" Id:11 CUR:65.29696 C
Apr 18 01:03:09 mail kernel[0]: [18] "CPU B0 DIODE TEMP" Type:"temp" Id:31 CUR:86.36864 C
Apr 18 01:03:09 mail kernel[0]: [19] "CPU A0 CORE CURRENT" Type:"current" Id:19 CUR:22.54016 A
Apr 18 01:03:09 mail kernel[0]: [20] "CPU B0 CORE CURRENT" Type:"current" Id:39 CUR:34.19712 A
Apr 18 01:03:09 mail kernel[0]: [21] "KODIAK DIODE" Type:"temperature" Id:7 CUR:54.0 C
Apr 18 01:03:09 mail kernel[0]: [22] "Slots Power" Type:"power" Id:3 CUR:20.1280 W
Apr 18 01:03:09 mail kernel[0]: [23] "gpu-diode" Type:"temp" Id:-1558134784 CUR:58.0 C
Apr 18 01:03:09 mail kernel[0]: IOHWCtrlLoops:
Apr 18 01:03:09 mail kernel[0]: [0] "CPU A0 Liquid Cooling" Id:3 MetaState:0
Apr 18 01:03:09 mail kernel[0]: [1] "CPU A1 Liquid Cooling" Id:4 MetaState:0
Apr 18 01:03:09 mail kernel[0]: [2] "CPU B0 Liquid Cooling" Id:5 MetaState:0
Apr 18 01:03:09 mail kernel[0]: [3] "CPU B1 Liquid Cooling" Id:6 MetaState:0
Apr 18 01:03:09 mail kernel[0]: [4] "Clock Slew" Id:0 MetaState:0 "Dynamic Power Step"
Apr 18 01:03:09 mail kernel[0]: [5] "Drive Bay Fan" Id:1 MetaState:0 "Normal"
Apr 18 01:03:09 mail kernel[0]: [6] "U3/Backside Zone" Id:2 MetaState:0 "Normal"
Apr 18 01:03:09 mail kernel[0]: [7] "PCI Slot Fan" Id:7 MetaState:0 "Normal"
Apr 18 01:03:09 mail kernel[0]: ---------------------------------
Apr 18 01:03:09 mail kernel[0]: IOPMSlotsMacRISC4::determineSleepSupport has canSleep true
Apr 18 01:03:09 mail kernel[0]: PM notification cancel (pid 4579, AppleFileServer)

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Will Mayall

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Well, I never found the cause of the issue, but I do seem to have found a cure.

In summary, something was causing the Power Mac G5 to sleep. I went through all the stuff I could think of:

- crontab
- launchd
- Reset the SMU
- Zapped PRAM
- Ran Hardware Test (passed)
- Ran all the tools I could think of

I've come to the conclusion that the SMU has an issue.

To "fix" it, I'm using Caffeine which is a small utility that does nothing but keep the computer awake:

http://lightheadsw.com/caffeine/

I also found WakeOnLan which is a utility which lets you wake the Mac from Mac:

http://www.readpixel.com/wakeonlan/

I don't like "fixing" something without knowing the cause but, oh well.

Will Mayall
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stewie

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Hey, Will.

/System/Library/CoreServices/backupd is Apple's time machine, not kerio's backup. It looks like something is causing your server to run at 100% & it's overheating. Did this problem start occurring when you upgraded to 7.0.1? This version is causing extremely high utilization on our servers & Kerio is looking at our core dumps for a solution.

BTW, if in fact this is a thermal issue, forcing your mac to stay awake may do some serious harm to your hardware.

Good luck.
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Will Mayall

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Thanks yes, I figured out that it was Time Machine and found that an old version of Time Machine Editor had set a task to start backup at the time that the machine was sleeping.

Yes, the problem started the same week I updated to 7.0.1. That was originally why I posted on this forum although I have no direct evidence that the issue is caused by Kerio Connect.

I'm sort of stuck with the current situation and will hope that there is a Kerio patch that helps.

Thanks,

Will Mayall
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fastred

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We have had similar issues with 7.0.1 freezing.

I have rolled back to 7.0.0 Patch 1, which I hope will fix the issue for now.

Jeremy
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