Bug #7552
closed
IPFW crashes on load or unload of modules
Added by Anthony Hernandez over 7 years ago.
Updated over 7 years ago.
Description
https://customercare.netgate.com/requests/show/index/id/20338
Complete kernel crash on Netgate branded servers. Can't reproduce in Virtual environment (2.3 - 2.3.1) Tested on C2758 and XG2758 on 2.3.4 and 2.3 respectively
Simple script to reproduce within 20 seconds of running. REloading or editing Captive portal could produce a kernel dump in production environment. Starting doesn't cause the break, it's restarting captive portal service that causes this issue.
I'm arbitrarily setting this to high, as it affects all our servers in production when updating configs for captive portal that results in a restart of the service, and especially if there is only one captive portal running.
#!/bin/sh
while true ; do
/sbin/kldload ipfw.ko dummynet.ko;
/sbin/kldunload ipfw.ko dummynet.ko;
done
- Priority changed from Very High to Low
Nowhere in the pfSense source does it ever kldunload ipfw.ko or dummynet.ko.
Is there a way to replicate this using ONLY procedures involving the pfSense GUI or natural processes on the base system (no custom scripts)?
- Status changed from New to Feedback
Jim Pingle wrote:
Nowhere in the pfSense source does it ever kldunload ipfw.ko or dummynet.ko.
Is there a way to replicate this using ONLY procedures involving the pfSense GUI or natural processes on the base system (no custom scripts)?
service_captiveportal calls on /etc/inc/captiveportal and I pulled the kldload/unload from that. Since restarting captive portal follows through with removing all captive portal entries and addding them again. Once it hits the last entry, it unloads the kernel modules, loads modules, adds in all the sysctl configuration options, and proceeds to randomly crash.
This mini script is to show what the complex UI is doing
/etc/inc/captiveportal.inc:166
function captiveportal_load_modules()
Please close this, seems I made a mistake on how to employ our version of Captive portal, and thought the kldunload of the custom ipfw.ko was supported. I've modified my scripts to never unload a kernel, but check if the kernels are not loaded during startup.
- Status changed from Feedback to Rejected
- Target version deleted (
2.3.4-p1)
- Affected Version deleted (
2.3.x)
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