Unresponsive CPU/Cores at 100%

[jonathanblim]

Hello I am running Unraid 6.9.2 Plus and have 6 drives installed, 4 connected directly to the motherboard and 2 connected to a SAS to SATA card. A while back I had an unfortunate power outage when I wasn't home and box was not connected to a UPS. I mention this as this is the only odd event I recall happening, rest of the time everything was smooth with Unraid. 

 

Now randomly (sometimes in as little as a day upto 10 days) the server will become unresponsive, I am unable to do a normal shutdown/reboot or take the array offline, the only way is to force a reboot but powering down the machine by holding down the power button. When I look at my dashboard I notice that several cores/threads are stuck at 100% 

 

 

 

Thanks,

Jon

[Squid]

You should post your diagnostics when cores are pegged

[jonathanblim]

Hello Squid, 

 

thanks for the feedback I will enable to mirror to flash function and post the sys log as soon as it happens again. 

 

that said I just encountered another issue. this has only been a few hours since I did the hard reboot this morning, but just now when I checked I now get the following error as if I do not have a license but I do ? Could it be my flash drive got killed during the power outage ? 

 

[jonathanblim]

So apparently I already had the mirror to flash option enabled, but when I try to upload the log file I get following error now ? 

 

[KeyBoardDabbler]

8 hours ago, jonathanblim said:

So apparently I already had the mirror to flash option enabled, but when I try to upload the log file I get following error now ? 

 

Try in a different browser

[jonathanblim]

OK for some reason it seems the only way to get it uploaded is to zip the file. 

 

Attached is the log file, thanks in advance!

syslog.7z

[Squid]

Does it still happen if you disable s3sleep?

[jonathanblim]

On 11/20/2021 at 1:44 PM, Squid said:

Does it still happen if you disable s3sleep?

While this is not optimal I will try disabling S3 sleep all together to see if it makes any difference. 

 

thanks!

[jonathanblim]

OK so even with the sleep disabled the problem still presists

 

candyshoppe-syslog-20211129-0105.zip

[jonathanblim]

It seems like the USB drive has failed ? Found this at the start of the errors...

Nov 28 07:43:00 Candyshoppe kernel: usb 2-1: USB disconnect, device number 2
Nov 28 07:43:00 Candyshoppe kernel: blk_update_request: I/O error, dev sda, sector 1344480 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
Nov 28 07:43:00 Candyshoppe kernel: blk_update_request: I/O error, dev sda, sector 2049 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
Nov 28 07:43:00 Candyshoppe kernel: Buffer I/O error on dev sda1, logical block 1, lost async page write
Nov 28 07:43:00 Candyshoppe kernel: blk_update_request: I/O error, dev sda, sector 560656 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
Nov 28 07:43:00 Candyshoppe kernel: Buffer I/O error on dev sda1, logical block 558608, lost async page write
Nov 28 07:43:01 Candyshoppe kernel: FAT-fs (sda1): Directory bread(block 30768) failed
Nov 28 07:43:01 Candyshoppe kernel: FAT-fs (sda1): Directory bread(block 30769) failed
Nov 28 07:43:01 Candyshoppe kernel: FAT-fs (sda1): Directory bread(block 30770) failed
Nov 28 07:43:01 Candyshoppe kernel: FAT-fs (sda1): Directory bread(block 30771) failed
Nov 28 07:43:01 Candyshoppe kernel: FAT-fs (sda1): Directory bread(block 30772) failed
Nov 28 07:43:01 Candyshoppe kernel: FAT-fs (sda1): Directory bread(block 30773) failed
Nov 28 07:43:01 Candyshoppe kernel: FAT-fs (sda1): Directory bread(block 30774) failed
Nov 28 07:43:01 Candyshoppe kernel: FAT-fs (sda1): Directory bread(block 30775) failed
Nov 28 07:43:01 Candyshoppe kernel: FAT-fs (sda1): Directory bread(block 30776) failed
Nov 28 07:43:01 Candyshoppe kernel: FAT-fs (sda1): Directory bread(block 30777) failed

 

Recommendations on how to proceed ? I have lost webgui now  

[jonathanblim]

I got a new drive, copied the files from the old flash to the new and did a hardboot but still no network connectivity and hence no GUI. 

Any help ?