Searched hist:"8397 ed36b7c585f8d3e06c431f4137309124f78f" (Results 1 – 2 of 2) sorted by relevance
/openbmc/linux/net/ipv6/ |
H A D | route.c | diff 8397ed36b7c585f8d3e06c431f4137309124f78f Wed Jun 07 13:26:23 CDT 2017 David Ahern <dsahern@gmail.com> net: ipv6: Release route when device is unregistering
Roopa reported attempts to delete a bond device that is referenced in a multipath route is hanging:
$ ifdown bond2 # ifupdown2 command that deletes virtual devices unregister_netdevice: waiting for bond2 to become free. Usage count = 2
Steps to reproduce: echo 1 > /proc/sys/net/ipv6/conf/all/ignore_routes_with_linkdown ip link add dev bond12 type bond ip link add dev bond13 type bond ip addr add 2001:db8:2::0/64 dev bond12 ip addr add 2001:db8:3::0/64 dev bond13 ip route add 2001:db8:33::0/64 nexthop via 2001:db8:2::2 nexthop via 2001:db8:3::2 ip link del dev bond12 ip link del dev bond13
The root cause is the recent change to keep routes on a linkdown. Update the check to detect when the device is unregistering and release the route for that case.
Fixes: a1a22c12060e4 ("net: ipv6: Keep nexthop of multipath route on admin down") Reported-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David Ahern <dsahern@gmail.com> Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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/openbmc/linux/include/linux/ |
H A D | netdevice.h | diff 8397ed36b7c585f8d3e06c431f4137309124f78f Wed Jun 07 13:26:23 CDT 2017 David Ahern <dsahern@gmail.com> net: ipv6: Release route when device is unregistering
Roopa reported attempts to delete a bond device that is referenced in a multipath route is hanging:
$ ifdown bond2 # ifupdown2 command that deletes virtual devices unregister_netdevice: waiting for bond2 to become free. Usage count = 2
Steps to reproduce: echo 1 > /proc/sys/net/ipv6/conf/all/ignore_routes_with_linkdown ip link add dev bond12 type bond ip link add dev bond13 type bond ip addr add 2001:db8:2::0/64 dev bond12 ip addr add 2001:db8:3::0/64 dev bond13 ip route add 2001:db8:33::0/64 nexthop via 2001:db8:2::2 nexthop via 2001:db8:3::2 ip link del dev bond12 ip link del dev bond13
The root cause is the recent change to keep routes on a linkdown. Update the check to detect when the device is unregistering and release the route for that case.
Fixes: a1a22c12060e4 ("net: ipv6: Keep nexthop of multipath route on admin down") Reported-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David Ahern <dsahern@gmail.com> Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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