Messages in this thread Patch in this message | | | Subject | Re: regression: ip r change mss doesn't work in 2.6.38-git14 | From | Eric Dumazet <> | Date | Thu, 24 Mar 2011 17:15:40 +0100 |
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Le jeudi 24 mars 2011 à 16:52 +0100, Alessandro Suardi a écrit : > On Thu, Mar 24, 2011 at 4:21 PM, Eric Dumazet <eric.dumazet@gmail.com> wrote: > > Le jeudi 24 mars 2011 à 16:08 +0100, Alessandro Suardi a écrit : > >> After fixing the display issue thanks to Chris Wilson, I now have > >> another problem > >> (which didn't exist in 2.6.38-git2); most websites outside of my DSL link don't > >> work properly (connection packet goes through, but the page load times out > >> within Firefox) unless I do > >> > >> ip r change default via 192.168.1.1 dev eth1 advmss 1400 > >> > >> This however doesn't change advmss anymore: > >> > >> [root@duff ~]# ip r > >> default via 192.168.1.1 dev eth1 > >> 169.254.0.0/16 dev eth1 scope link metric 1004 > >> 192.168.1.0/24 dev eth1 proto kernel scope link src 192.168.1.8 > >> [root@duff ~]# ip r change default via 192.168.1.1 dev eth1 advmss 1400 > >> [root@duff ~]# ip r > >> default via 192.168.1.1 dev eth1 > >> 169.254.0.0/16 dev eth1 scope link metric 1004 > >> 192.168.1.0/24 dev eth1 proto kernel scope link src 192.168.1.8 > > > > Indeed, we'll take a look, thanks for the report. > > > > In the time being you can do : > > > > ip ro change default via 192.168.1.1 dev eth1 advmss 1400 mtu 1500 > > Thanks - this one works for me. > > I'm available to test patches if needed, though I have a feeling you > already have a handle on the issue and won't need that ;)
;)
I am testing following patch :
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index 622ac4c..654ef5b 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -251,7 +251,7 @@ static struct fib_info *fib_find_info(const struct fib_info *nfi) nfi->fib_prefsrc == fi->fib_prefsrc && nfi->fib_priority == fi->fib_priority && memcmp(nfi->fib_metrics, fi->fib_metrics, - sizeof(fi->fib_metrics)) == 0 && + sizeof(u32) * RTAX_MAX) == 0 && ((nfi->fib_flags ^ fi->fib_flags) & ~RTNH_F_DEAD) == 0 && (nfi->fib_nhs == 0 || nh_comp(fi, nfi) == 0)) return fi;
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