Bug 145944 - nf_conntrack hangs the system
Summary: nf_conntrack hangs the system
Status: RESOLVED FIXED
Alias: None
Product: SUSE LINUX 10.0
Classification: openSUSE
Component: Kernel (show other bugs)
Version: Final
Hardware: x86 Other
: P5 - None : Critical
Target Milestone: ---
Assignee: Jaroslav Kysela
QA Contact: E-mail List
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Reported: 2006-01-26 18:40 UTC by Subredu Manuel
Modified: 2006-03-07 09:39 UTC (History)
0 users

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Found By: Other
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Description Subredu Manuel 2006-01-26 18:40:13 UTC 
If one tries to load nf_netfilter the system will hang. Test it on 2 machines, both running opensuse 10.0 with the latest updates.
Comment 1 Olaf Kirch 2006-01-26 19:16:54 UTC 
perex, can you take a look please? Thanks!
Comment 3 Jaroslav Kysela 2006-01-27 12:42:18 UTC 
Can you elaborate what nf_netfilter is (e.g. what commands you use to load it)?
Comment 4 Subredu Manuel 2006-01-27 12:47:05 UTC 
(In reply to comment #3)

sorry. Is about nf_conntrack :( 
modprobe nf_conntrack
Comment 5 Jaroslav Kysela 2006-01-27 15:13:35 UTC 
Thanks. Please, provide also the exact kernel version:

cat /proc/version
rpm -qi kernel-default
Comment 6 Subredu Manuel 2006-01-27 15:18:40 UTC 
router:~ # cat /proc/version 
Linux version 2.6.13-15.7-smp (geeko@buildhost) (gcc version 4.0.2 20050901 (prerelease) (SUSE Linux)) #1 SMP Tue Nov 29 14:32:29 UTC 2005

router:~ # rpm -qa | grep kernel
kernel-update-tool-0.9-10
kernel-smp-nongpl-2.6.13-15.7
kernel-smp-2.6.13-15.7
Comment 7 Jaroslav Kysela 2006-01-27 19:06:23 UTC 
The x86_64 UP version of this kernel works here. Could you try 'nosmp' boot parameter for kernel to disable smp and try modprobe nf_conntrack module again?
Comment 8 Subredu Manuel 2006-01-28 13:26:55 UTC 
Any attemps to boot with nosmp failed with kernel panic :(
I tried both x86_64 and x86. both failed when loading scsi drivers.
Comment 9 Jaroslav Kysela 2006-01-29 15:54:09 UTC 
Could you boot the smp kernel with these parameters "vga=normal splash=0 single" and then do these commands:

/etc/init.d/syslog stop
modprobe nf_conntrack

Do you see any error messages (oops) then?
Comment 10 Jaroslav Kysela 2006-03-07 09:39:45 UTC 
The bug is probably fixed.