apport information
** Tags added: apport-collected trusty
** Description changed:
We have observed the following behaviour on our LVS systems, which is
causing issues with our monitor scripts. The systems are running Ubuntu
14.04.5 LTS and I've tested both with the stock 3.13.0 kernel
apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1681847/+attachment/4860195/+files/ProcEnviron.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1681847/+attachment/4860200/+files/WifiSyslog.txt
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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** Attachment added: "ProcInterrupts.txt"
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** Attachment added: "UdevDb.txt"
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** Attachment added: "UdevLog.txt"
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It's hard to tell whether this was the result of an upgrade - I think
this behaviour has always been present in the 14.04 stock kernels, but
we noticed it less until recently.
I'll look into testing the latest upstream kernel and get back to you.
If I get a chance I'll also try to look through
I think I may have tracked this down, but I haven't had a go at patching
it yet.
In net/netfilter/ipvs/ip_vs_core.c - in handle_response():
/* mangle the packet */
if (pp->snat_handler && !pp->snat_handler(skb, pp, cp, iph))
goto drop;
This calls the
I've tested this with the latest upstream kernel (4.11.0-041100rc6), and
the problem is still present.
** Tags added: kernel-bug-exists-upstream
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https://bugs.launchpad.net/bugs/1681847
Title:
IPVS incorrectly reverse-NATs traffic to LVS host
Status in linux package in
I've attempted to patch this out by adding checks where snat_handler and
dnat_handler are called (ip_vs_core.c and ip_vs_xmit.c), with no success. I
have to surmise that either:
- My patches aren't being built correctly
- My checks don't work
- This isn't the code that's mangling the packets
-
Public bug reported:
We have observed the following behaviour on our LVS systems, which is
causing issues with our monitor scripts. The systems are running Ubuntu
14.04.5 LTS and I've tested both with the stock 3.13.0 kernel (-100 and
-116) and the 4.4.0-72 xenial kernel.
Our systems are set up
** Description changed:
We have observed the following behaviour on our LVS systems, which is
causing issues with our monitor scripts. The systems are running Ubuntu
14.04.5 LTS and I've tested both with the stock 3.13.0 kernel (-100 and
-116) and the 4.4.0-72 xenial kernel.
Our
This was reported as an upstream kernel bug:
http://archive.linuxvirtualserver.org/html/lvs-devel/2017-04/msg00014.html
An IPVS kernel developer has responded to the issue and a patch has been
tested.
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