Date: Thu, 2 Jan 2014 10:29:46 +0000 From: Nikolay Denev <ndenev@gmail.com> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Interface routes left over undeletable with RADIX_MPATH Message-ID: <CA%2BP_MZFTD8QUHiZx_W-%2B24VLXRKLr1ZEhV3SF2Epm9xPEMR4KA@mail.gmail.com>
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Hi, While digging around for the "rtfree 2" panics with RADIX_MPATH I've reported in misc/185092, (yeah, should've been kern, or net, not misc) I've noticed that the interface routes that are installed on the loopback interface are left over when the address is removed and RADIX_MPATH is used. Moreover, since these now I believe are flagged as RTF_PINNED it's unable to delete them. Here is what happens with 10.0-RC3 GENERIC: # ifconfig em0 10.10.10.10/24 # netstat -rnfinet | grep 10.10.10.10 # 10.10.10.10 link#1 UHS 0 0 lo0 # ifconfig em0 delete # netstat -rnfinet | grep 10.10.10.10 # However, this happens with RADIX_MPATH kernel: # ifconfig em0 10.10.10.10/24 # netstat -rnfinet | grep 10.10.10.10 # 10.10.10.10 link#1 UHS 0 0 lo0 # ifconfig em0 delete # netstat -rnfinet | grep 10.10.10.10 # 10.10.10.10 link#1 UHS 0 0 lo0 # route delete 10.10.10.10 -iface lo0 # route: writing to routing socket: No such process # delete host 10.10.10.10: gateway lo0 fib0: not in table The address is successfully removed from the em0 interface, but the route over the loopback interface stays, even survives "route flush" --Nikolay
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