Bug 689844

Summary: kernel BUG at net/netfilter/nf_conntrack_proto_tcp.c:447!
Product: [Fedora] Fedora Reporter: John Florian <john>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: unspecified    
Version: 13CC: gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-06-27 11:57:06 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
stack trace
none
2nd stack trace
none
3rd stack trace none

Description John Florian 2011-03-22 15:48:41 UTC
Created attachment 486824 [details]
stack trace

Description of problem:
Kernel crashes or, at least, stops responding over the network.

Version-Release number of selected component (if applicable):
kernel-2.6.34.7-66.fc13.i686

How reproducible:
frequent; about two occurrences daily from around 80 identical embedded systems

Steps to Reproduce:
unknown
  
Actual results:
With remote syslogging I was able to capture the attached stack traces from 3 devices.

Additional info:
Affected systems aggressively poll ModBus devices and are *not* loading any netfilter modules.  Loaded modules are:

# lsmod
Module                  Size  Used by
netconsole              5554  0 
configfs               19617  2 netconsole
ipv6                  221598  31 
snd_cs5535audio         9749  0 
snd_ac97_codec         89423  1 snd_cs5535audio
ac97_bus                 906  1 snd_ac97_codec
snd_seq                42775  0 
snd_seq_device          5035  1 snd_seq
ecb                     1567  0 
snd_pcm                62005  2 snd_cs5535audio,snd_ac97_codec
snd_timer              15391  2 snd_seq,snd_pcm
aes_i586                7130  0 
ppdev                   6722  0 
snd                    46603  6 snd_cs5535audio,snd_ac97_codec,snd_seq,snd_seq_device,snd_pcm,snd_timer
parport_pc             17505  0 
aes_generic            26440  1 aes_i586
e100                   24805  0 
parport                25805  2 ppdev,parport_pc
soundcore               4934  1 snd
joydev                  7435  0 
geode_aes               4209  0 
mii                     3514  1 e100
serio_raw               3536  0 
cs5535_mfgpt            2949  0 [permanent]
snd_page_alloc          6033  2 snd_cs5535audio,snd_pcm
cs5535_gpio             2247  0 
geode_rng                963  0 
squashfs               30885  2 
pata_acpi               2315  0 
ata_generic             2375  0 
pata_cs5536             2777  0 
pata_amd                7606  1

Comment 1 John Florian 2011-03-22 15:49:25 UTC
Created attachment 486825 [details]
2nd stack trace

Comment 2 John Florian 2011-03-22 15:49:53 UTC
Created attachment 486826 [details]
3rd stack trace

Comment 3 Bug Zapper 2011-05-30 10:54:52 UTC
This message is a reminder that Fedora 13 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 13.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '13'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version prior to Fedora 13's end of life.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we may not be able to fix it before Fedora 13 is end of life.  If you 
would still like to see this bug fixed and are able to reproduce it 
against a later version of Fedora please change the 'version' of this 
bug to the applicable version.  If you are unable to change the version, 
please add a comment here and someone will do it for you.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events.  Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

The process we are following is described here: 
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Comment 4 Bug Zapper 2011-06-27 11:57:06 UTC
Fedora 13 changed to end-of-life (EOL) status on 2011-06-25. Fedora 13 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.