>Number: 149804
>Category: kern
>Synopsis: ICMP redirect on causes "panic: rtqkill route really not free"
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Aug 19 13:10:03 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator: Pete French
>Release: FreeBSD 8.1-STABLE amd64
>Organization:
Ticket Switch Ltd
>Environment:
System: FreeBSD dilbert.rattatosk 8.1-STABLE FreeBSD 8.1-STABLE #1: Tue Aug 17
12:30:13 BST 2010 [email protected]:/usr/obj/usr/src/sys/GENERIC
amd64
>Description:
Running 8.1 in an environment with multiple routers that issue ICMP
redirects can cause the system to panic with the message given in the subject
line.
>How-To-Repeat:
Install an 8.1 machine intp an envir0onment as above - I have not found
a reliable way to reporduce it, but in our case it crashes within a few days.
>Fix:
setting net.inet.icmp.drop_redirect=1 will prevent this. There is also
a patch from Xin LI which appears to fix the problem (or at least mitigate it
to the point where we havent seen it since it was applied)
>Release-Note:
>Audit-Trail:
>Unformatted:
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