Date: Mon, 07 Sep 2015 22:11:07 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 202960] Kernel panic when bridging e1000 NIC with pf rules Message-ID: <bug-202960-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202960 Bug ID: 202960 Summary: Kernel panic when bridging e1000 NIC with pf rules Product: Base System Version: 10.2-RELEASE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: jeffrey@endrift.com Created attachment 160825 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=160825&action=edit core.txt When trying to set up a tap device for bhyve, I ran into a kernel panic with some combination of the e1000 drivers for my Intel NIC and pf forwarding of IPv6 packets. I was following the instructions on the bhyve page for setting up the tap device and bridge: https://www.freebsd.org/doc/handbook/virtualization-host-bhyve.html which worked fine until I try to bring up the bridge, at which point it will panic shortly after (presumably when it gets an IPv6 multicast packet). The crash appears to be a bad interaction between the e1000 driver and ip6_forward, where it panics when trying to log that it can't forward multicast messages. The name of the interface in one of the mbufs is null, leading to a fault when it tries to strlen the argument to kvprintf. core.txt is attached. -- You are receiving this mail because: You are the assignee for the bug.
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