perfSONAR User Q&A and Other Discussion

[Joshua Luke <>]

Hello,

One of our perfSONAR nodes is not coming back up due to a kernel panic (see attached emails for full error message) after an OpenSSL update and reboot. The issue was not fixed on subsequent reboots.

If this issue has been encountered by anyone previously, or if anyone has any experience with this, your thoughts or advice would be appreciated.

In the attached emails below is all the details that I have personally, but if you need more, Shawn, Sarah, or Dave (all CC'd) should be able to provide you with them.

Thank you,

Joshua Luke 

---------- Forwarded message ----------
From: Joshua Luke <>
Date: Fri, Apr 11, 2014 at 11:23 AM
Subject: Re: IU perfSONAR bandwidth node is down?
To: David Lesny <>
Cc: Shawn McKee <>, Sarah Williams <>

Dave, 

iut2-net2 is experiencing a kernel panic (full error text at the end of this email). I'm not sure what needs to be done to remedy this. I was able to boot into the other options on the GRUB menu.

Error message:

RAMDISK: incomplete write (3107 != 32768)

write error

Kernel panic - not syncing: VFS: Unable to mount root fs on unkown-block(0,0)

Pid: 1, comm: swapper Not tainted 2.6.32-431.11.2.e16.aufs.web100.x86_64 #1

Call Trace: [I don't think you need this, so I'm omitting it]

- Josh

On Fri, Apr 11, 2014 at 8:57 AM, David Lesny <> wrote:

Joshua,

iut2-net2.iu.edu seems to have have not booted after the update of openssl (and a reboot)

Could you have a look at it today and see why it did not return to service.

thanks, dave

On 4/11/2014 7:44 AM, Shawn McKee wrote:

Hi  Sarah,  Dave,  

The  IU perfSONAR-PS bandwidth  node seems  to  be down?

Can  someone check  it?  Thanks,

Shawn