Bug 682688

Summary: [RHEL.6] [Kernel Panic] when connecting / disconnecting from WLAN (CIFS VFS: cifs_mount failed w/return code = -101)
Product: Red Hat Enterprise Linux 6 Reporter: David Botzer <dbotzer>
Component: kernelAssignee: Jeff Layton <jlayton>
Status: CLOSED DUPLICATE QA Contact: Red Hat Kernel QE team <kernel-qe>
Severity: high Docs Contact:
Priority: unspecified    
Version: 6.0CC: jlayton, pstehlik, rwheeler, steved
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-03-07 15:22:09 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Attachments:
Description Flags
var-log-messages
none
FSTAB none

Description David Botzer 2011-03-07 09:42:37 UTC 
Description of problem:
I get Kernel Panic 
When my WLAN disconnect, and than tries to reconnect without user intervention
(where the last line of the message says cifs....)

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


How reproducible:
Always

Steps to Reproduce:
1. create a mount to local server at work (CIFS, see attached fstab)
2. Connect to WLAN, 
   I can connect successfully to a WLAN from my laptop.
   I can connect successfully my VPN (TLV)
   I can connect successfully both to Internet & RH Intranet.

3. try to cause the connection to be disconnected on its own - 

Actual results:
Kernel Panic, requires hard reset

Expected results:
WLAN should be able to disconnect & reconnect without any problems

Additional info:
Happened at home
See attached:
/var/log/messages (happens on 7-3-2011 ;between 8:40-9:00
fstab
IPtables version -->
============================================
============================================
Mar  7 08:42:51 dbotzer kernel: CIFS VFS: Error connecting to socket. Aborting operation
Mar  7 08:42:51 dbotzer kernel: CIFS VFS: cifs_mount failed w/return code = -101
Mar  7 08:42:51 dbotzer kernel: CIFS VFS: Error connecting to socket. Aborting operation
Mar  7 08:42:51 dbotzer kernel: CIFS VFS: cifs_mount failed w/return code = -101

Mar  7 08:45:49 dbotzer kernel: CIFS VFS: Error connecting to socket. Aborting operation
Mar  7 08:45:49 dbotzer kernel: CIFS VFS: cifs_mount failed w/return code = -110

Mar  7 08:52:51 dbotzer kernel: Modules linked in: tun fuse ip6table_filter ip6_tables ebtable_nat ebtables xt_CHECKSUM iptabl
e_mangle ipt_MASQUERADE iptable_nat nf_nat rfcomm sco bridge stp llc bnep l2cap autofs4 nls_utf8 cifs sunrpc cpufreq_ondemand 
acpi_cpufreq freq_table ipv6 xt_physdev ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipMar  7 08:54:06 dbotzer kernel: imklog 4.6.2,
 log source = /proc/kmsg started.
Mar  7 08:54:06 dbotzer rsyslogd: [origin software="rsyslogd" swVersion="4.6.2" x-pid="1692" x-info="http://www.rsyslog.com"] 
(re)start
Comment 1 David Botzer 2011-03-07 09:44:51 UTC 
Created attachment 482634 [details]
var-log-messages

focus between 8:40 - 9:00
Comment 2 David Botzer 2011-03-07 09:45:45 UTC 
Created attachment 482635 [details]
FSTAB

mount using cifs to remote server
Comment 4 Jeff Layton 2011-03-07 15:22:09 UTC 
Sadly, the log messages don't contain the full traceback, but if it's oopsing in cifs_show_options then this is almost certainly a duplicate of bug 629085. Closing as such -- the fix should be in 6.1.

*** This bug has been marked as a duplicate of bug 629085 ***