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Created attachment 806195 [details]
screenshot at console via idrac

# Description of problem:

System crashed. I have only a screenshot (attached).

The system has two nfs resources mounted. cachefilesd is used to optimize.   
The data in that mounted dirs is used by the webserver (htdocs).


# Version-Release number of selected component (if applicable):

$ rpm -qa | grep cachef
cachefilesd-0.10.2-1.el6.x86_64

$ uname -a
Linux srv-sl0a.ccds.de 2.6.32-358.18.1.el6.x86_64 #1 SMP Wed Aug 28 17:19:38 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

rpm -qa | grep nfs
nfs-utils-lib-1.1.5-6.el6.x86_64
nfs-utils-1.2.3-36.el6.x86_64


# How reproducible:
I can not reproduce it - it just happens today the first time. 
The cachefilesd is setup since 5 days. I hope the screenshot helps.


# Actual results:
Crash

# Expected results:
No crash


# Additional info:
du -h -s /var/cache/fscache/
21G	/var/cache/fscache/

# nfs mount options
cat /etc/fstab | grep nfs |cut -f4
rw,noexec,nosuid,acl,nosharecache,fsc,rsize=8192,wsize=8192,nfsvers=3,tcp,intr,soft,timeo=60 0 0
rw,noexec,nosuid,acl,nosharecache,fsc=lib,rsize=8192,wsize=8192,nfsvers=3,tcp,intr,soft,timeo=60 0 0

This request was evaluated by Red Hat Product Management for
inclusion in the current release of Red Hat Enterprise Linux.
Because the affected component is not scheduled to be updated
in the current release, Red Hat is unable to address this
request at this time.

Red Hat invites you to ask your support representative to
propose this request, if appropriate, in the next release of
Red Hat Enterprise Linux.

Created attachment 817652 [details]
2nd screenshot at console via idrac

2nd time that the system crashed

Hello 

We were testing fs-cache for last 1 week. It paniched with similar traces. 

kernel based on  

Red Hat Enterprise Linux 6.5
kernel (2.6.32-431.1.2.el6)


Attaching a screen shot as i was not able to capture vmcore. 

Regards
Ranjith

Created attachment 877955 [details]
kernel panic  screen shot

Leon

Fix is included in RHEL 6.5
https://access.redhat.com/site/solutions/374553

Please check whether you notice this problem with RHEL 6.5

Ranjith

With reference to your email in linux-cachefs list.. Can you confirm whether you notice the panic when you use the standard RH kernel ?

So far no problems with EL6.5. Thank you for your input!