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HomeOther DownloadsPNE-LE1.4 -- system can hang with unregister_netdevice with > 0 refcnt during reboot
Recommended Type: Patch

PNE-LE1.4 -- system can hang with unregister_netdevice with > 0 refcnt during reboot

Released: Feb 9, 2009     Updated: Feb 9, 2009



 calling ping6 on a non-existent host over a TUN/TAP interface can cause the system to hang/panic during a reboot.

This issue is reproducible on PNE-LE1.4, but does not seem to be reproducible on PNE-LE2.0.

Product Version

Linux Platforms 1.x




Installation Notes

Installation Notes


1. Unzip this patch under [install_dir]/updates

2. From the [install_dir]/updates directory, run the command


3. Follow the instructions for installing the point patch.

4. This is a source only patch so you will have to rebuild the linux kernel. This can be done by executing the command "make -C build

linux.distclean" followed by "make -C build linux.rebuild"

5. Upload the kernel into the target and boot it up.

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