On Thu, Oct 15, 2015 at 12:34:13AM +0200, Phil Sutter wrote: > Hi Martin, > > On Tue, Oct 13, 2015 at 11:14:21PM -0700, Martin KaFai Lau wrote: > > On Tue, Oct 13, 2015 at 09:26:41PM +0200, Phil Sutter wrote: > > > I have backed up the rt pointer at top of the function and restored it > > > before pr_err, this is the output: > > > > > > | rt6i_dst:2001:4dd0:ff3b:13::/64 rt6i_gateway::: rt6i_flags:40000001 > > > dst.flags:00000000 > > Hi Phil, Can you try the following patch and report the pr_err? > > Probably needless to say, but with your patch applied the Oops does not > occur anymore. This is the log output: Thanks for testing it. The patch may need a bit refactoring work and I will post it soon.
> > | [ 46.518869] IPv6: ort:ffff8800cbb5b800 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:40000001 dst.flags:00000020 > | [ 46.518874] IPv6: rt:ffff8800cb07a000 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:00000001 dst.flags:00000000 > | [ 46.529171] IPv6: ort:ffff8800cbb5b800 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:40000001 dst.flags:00000020 > | [ 46.529174] IPv6: rt:ffff8800cb07b500 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:00000001 dst.flags:00000000 > | [ 46.529187] IPv6: ort:ffff8800cbb5b800 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:40000001 dst.flags:00000020 > | [ 46.529189] IPv6: rt:ffff8800cb07ad80 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:00000001 dst.flags:00000000 > | [ 47.532014] IPv6: ort:ffff8800cbb5b800 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:40000001 dst.flags:00000020 > | [ 47.532021] IPv6: rt:ffff8800cb07a000 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:00000001 dst.flags:00000000 > | [ 47.532028] IPv6: ort:ffff8800cbb5b800 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:40000001 dst.flags:00000020 > | [ 47.532031] IPv6: rt:ffff8800cb07b500 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:00000001 dst.flags:00000000 > | [ 49.536010] IPv6: ort:ffff8800cbb5b800 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:40000001 dst.flags:00000020 > | [ 49.536014] IPv6: rt:ffff8800cb07ad80 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:00000001 dst.flags:00000000 > | [ 49.536021] IPv6: ort:ffff8800cbb5b800 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:40000001 dst.flags:00000020 > | [ 49.536024] IPv6: rt:ffff8800cb07a180 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:00000001 dst.flags:00000000 > | [ 53.544013] IPv6: ort:ffff8800cbb5b800 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:40000001 dst.flags:00000020 > | [ 53.544020] IPv6: rt:ffff8800cb07a300 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:00000001 dst.flags:00000000 > | [ 53.544028] IPv6: ort:ffff8800cbb5b800 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:40000001 dst.flags:00000020 > | [ 53.544031] IPv6: rt:ffff8800cb07b980 rt6i_dst:[2001:4dd0:ff3b:13::]/64 > rt6i_gateway:[::] rt6i_flags:00000001 dst.flags:00000000 > > In case the amount of log entries is surprising: my test-case is > mounting two NFS shares over IPsec. No idea if that's relevant or not. I also don't know why xfrm_lookup() errors out and then triggers make_blackhole() but I believe it should not affect the fix here. Thanks, Martin -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
