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Ticket Resolution Summary Owner Reporter
#7818 duplicate linux 2.6.36 host general protection fault without cpu hw virtualization maurom
Description

VirtualBox 3.6.12 randomly hangs host with a general protection fault on linux 2.6.36 (from debian experimental) while running linux or reactos guest. CPU is an Intel Pentium D without virtualization extension.

#11109 fixed linux (CentOS) host hangs when "stopping" iptables mcfip
Description

It does not appear anyone has reported this issue to VirtualBox. I hope I did not overlook a previous report.

Guest: Windows 7. Host: CentOS 6.3

After upgrading to 4.2 (now on 4.2.2), my host hangs whenever I stop or restart iptables. When iptables tries to unload the network modules, it hangs while trying to unload the last module. I do not recall this happening before 4.2, but I found a thread on the CentOS forum that is identical to my issue in 4.1.x versions.

My system will reboot / shutdown fine if I do not load a VM session.

Once I load (and unload) a VM session, my host will hang everytime while unloading network modules within the iptables script to stop iptables. This is reproducible 100% of the time.

The hang occurs in iptables script when it trys to unload remaning netfilter modules used by ipv4 and ipv6.

netfilters to unload == x_tables nf_nat nf_conntrack

The first two unload fine. When it unloads nf_conntrack, a referring module" xt_state is found and it calls rmmod to unload it.

The script hangs when the "modprobe -r $mod" command (modprobe -r xt_state) is executed for the xl_state module.

A CentOS thread describes the same issue from other users:

http://www.centos.org/modules/newbb/viewtopic.php?topic_id=39553&forum=59

There is a work-around at the bottom of the thread but this is not ideal and is not recommended (per the comments in the iptables-config file.

I am attaching a vbox.log for the "guest" and a vboxsvr.log for the "host".

P{lease let me know if you need more information from my system. I can easily retest and get any log info you may need.

Mike

#5018 fixed linux ( OEL 5.4 32 -bit ) crashes (ATA_AIO_RESET_ASSERTED...) => fixed in SVN, 3.0.14, 3.1.2 portingware
Description

attaching log . OEL randomly crashes

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