I updated my two system to 6.3.2 a few days ago without any issues.

 

This evening, I install the IPMI plugin just to play around to look at the system parameters. I then decided to go into the BIOS and see what the settings were. Initially, the motherboard was set to grab the IP address statically. I then changed it to DHCP for no reason. I then rebooted the system.

 

Since then, the computer keeps rebooting every 3-5 minutes. I am not seeing anything either in the logs or on the screen to give me a hint. The rebooting occurs with or without the disk array being mounted.  I have also removed the IPMI plugin even though I don't think it has anything to do with what is going on.

 

The motherboard is a SuperMicro X8DTL-iF. It has two processors and 24 GB of memory.

 

I have attached the diagnostic files in case they prove useful.

 

Thanks.

 

Frank Hahn

 

 

barney-diagnostics-20170222-2055.zip

Disk ST4000VN000-1H4168_Z306FZXT looks as though it has a bad cable

 

Quote

Feb 22 20:54:37 Barney kernel: ata2.00: hard resetting link

Feb 22 20:54:38 Barney kernel: ata2.00: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
Feb 22 20:54:38 Barney kernel: ata2.00: configured for UDMA/133
Feb 22 20:54:38 Barney kernel: ata2: EH complete
Feb 22 20:54:38 Barney kernel: ata2.00: limiting SATA link speed to 1.5 Gbps

 

but I wouldn't expect that cause repeated rebooting. Replace the cable. It looks as though this disk's controller might be failing too

 

Quote

Feb 22 20:54:37 Barney kernel: ata2.00: SError: { UnrecovData HostInt 10B8B BadCRC }
Feb 22 20:54:37 Barney kernel: ata2.00: failed command: READ DMA EXT
Feb 22 20:54:37 Barney kernel: ata2.00: cmd 25/00:08:88:be:c0/00:00:d1:01:00/e0 tag 0 dma 4096 in
Feb 22 20:54:37 Barney kernel:         res 51/84:00:8f:be:c0/84:00:d1:01:00/e0 Emask 0x70 (host bus error)

 

 so it would be worth trying a different port.

I have disconnected all drives except for the Samsung cache drive and the computer is still rebooting. I plan on running the memory test tomorrow. I'm just not sure what could be going on. I don't think it is the bootable USB drive. I took it out and ran a chkdsk on it and no errors were found.  I'm not sure if I can copy all of the files off, format the drive, copy unraid back on, make it bootable, and then copy all of the config files back without loosing my setup or not.

 

Thanks.

 

Frank Hahn

 

Have you checked some of the obvious things like the CPU fan is working?   The symptoms sound like either the CPU is overheating and causing a shutdown or you have power supply issues.

7 hours ago, itimpi said:

Have you checked some of the obvious things like the CPU fan is working?   The symptoms sound like either the CPU is overheating and causing a shutdown or you have power supply issues.

There are four fans in the system. One in the front, one in the back, and one on each of the processors and all are working. In the BIOS, the CPU temperatures are low enough that they are not displaying. When I had the CPU temperatures displaying on the unRAID web interface using the IPMI plugin, the temperature was around 40 Deg C. for each of them give or take a few degrees.

 

I have unplugged all drives and it still reboots. I started a memory test and it rebooted. I then went into the BIOS and it rebooted there so there must be a hardware issue somewhere that I am not seeing. I'm going to try a different Linux distribution with all the drives disconnected to see if I can catch something in the log files.

 

Thanks.

 

Frank Hahn

 

7 hours ago, itimpi said:

Have you checked some of the obvious things like the CPU fan is working?   The symptoms sound like either the CPU is overheating and causing a shutdown or you have power supply issues.

I should also say that the IPMI plugin shows the power supply voltages and they all looked to be within range. I am going to try the system on a different outlet today and see if that makes a difference.

 

Thanks.

 

Frank Hahn

 

11 hours ago, fhahn said:

Since then, the computer keeps rebooting every 3-5 minutes.

 

Try disabling the Watchdog function in your BIOS: http://serverfault.com/questions/223003/server-reboots-every-4-5-5-5-minutes

13 minutes ago, eschultz said:

 

Try disabling the Watchdog function in your BIOS: http://serverfault.com/questions/223003/server-reboots-every-4-5-5-5-minutes

I have checked and it is disabled. I have changed the setting to enabled and saved the changes. I am rebooting and will chaage it back to disabled. I need to download the motherboard manual and make sure I am not missing a setting.

 

I am going to take pictures of all of the BIOS setting pages and then do a reset of the BIOS and see if that helps.

 

Thanks.

 

Frank Hahn

 

2 minutes ago, fhahn said:

I am going to take pictures of all of the BIOS setting pages and then do a reset of the BIOS and see if that helps.

 

That's probably a good idea.  You might have upgraded the motherboard BIOS a while ago and changing the IPMI from static to DHCP could have been your first "save" since.  I've seen a few times that it's recommended to Load Defaults + Save after a BIOS upgrade and then customize the settings but each BIOS upgrade is different

5 hours ago, eschultz said:

 

That's probably a good idea.  You might have upgraded the motherboard BIOS a while ago and changing the IPMI from static to DHCP could have been your first "save" since.  I've seen a few times that it's recommended to Load Defaults + Save after a BIOS upgrade and then customize the settings but each BIOS upgrade is different

I think the problem has been solved though I am not sure what may have caused it in the first place. It does look to be caused by the Watch Dog system built in to the motherboard.

 

The motherboard is a Supermicro X8DTL-iF and there is a jumper on the motherboard. Having pins 1 and 2 jumped are the default. The motherboard manual also says the Watch Dog BIOS setting must be enabled for this to work. Right now, with pins 1 and 2 jumped, the computer reboots about every five minutes no matter the Watch Dog BIOS setting.

 

I have removed the jumper and things are now working again.  I did clear the CMOS and reset the BIOS settings but if pins 1 and 2 of the Watch Dog jumpers are jumped, then the motherboard will consistently keep rebooting.

 

My BIOS is at the latest version so I don't think flashing a new version would help.

 

Thanks for the help.

 

Frank Hahn