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Message-Id: <20080328052543.M60286@visp.net.lb>
Date: Fri, 28 Mar 2008 07:25:42 +0200
From: "Denys Fedoryshchenko" <denys@...p.net.lb>
To: David Miller <davem@...emloft.net>, dada1@...mosbay.com
Cc: kaber@...sh.net, netdev@...r.kernel.org,
netfilter-devel@...r.kernel.org
Subject: Re: kernel 2.6.25-rc7 highly unstable on high load
Just to make sure 2.6.24.3 is stable and it is regression i am supplying
output from it.
Do you want me to submit summary to bugzilla and regression list as well?
And in short, IMHO 2.6.25 have major issues on routing that have to be fixed
before release. TRIE is crashing, and even with HASH there is leak. I am
trying my best to bisect it, but it is major router and i cannot take much
risk on it, so i wish i can simulate in my home mini-lab. Still i am not able
to get even proper switch (Lebanon difficult country for IT).
Kup ~ # uname -a
Linux Kup 2.6.24.3-build-0023 #3 SMP Sat Mar 8 13:01:35 EET 2008 i686 unknown
up ~ # rtstat -i60 -c6000
rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|
rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|
rt_cache|
entries| in_hit|in_slow_|in_slow_|in_no_ro| in_brd|in_marti|in_marti|
out_hit|out_slow|out_slow|gc_total|gc_ignor|gc_goal_|gc_dst_o|in_hlist|
out_hlis|
| | tot| mc| ute| | an_dst|
an_src| | _tot| _mc| | ed| miss| verflow|
_search|t_search|
54750| 4430| 1128| 0| 12| 0| 0| 0|
263| 190| 0| 709| 708| 0| 0| 3545| 313|
92913| 8829| 1211| 0| 1| 0| 0| 0|
343| 163| 0| 1375| 1373| 0| 0| 12545| 724|
115323| 8232| 906| 0| 0| 0| 0| 0|
299| 128| 0| 1035| 1033| 0| 0| 18069| 813|
128985| 8650| 839| 0| 0| 0| 0| 0|
289| 115| 0| 954| 952| 0| 0| 22515| 845|
116682| 8911| 861| 0| 0| 0| 0| 0|
288| 117| 0| 978| 976| 0| 0| 23433| 775|
99969| 9164| 889| 0| 0| 0| 0| 0|
280| 113| 0| 1002| 1000| 0| 0| 26741| 839|
124602| 9395| 1012| 0| 0| 0| 0| 0|
271| 122| 0| 1134| 1132| 0| 0| 27381| 787|
110051| 10036| 824| 0| 0| 0| 0| 0|
279| 120| 0| 944| 942| 0| 0| 28558| 783|
126835| 10631| 772| 0| 0| 0| 0| 0|
274| 117| 0| 888| 886| 0| 0| 29451| 780|
111881| 10357| 762| 0| 0| 0| 0| 0|
275| 117| 0| 879| 877| 0| 0| 28235| 751|
127018| 10178| 796| 0| 0| 0| 0| 0|
283| 117| 0| 913| 911| 0| 0| 29480| 807|
112242| 9839| 814| 0| 0| 0| 0| 0|
293| 115| 0| 929| 927| 0| 0| 28095| 796|
41267| 9493| 1217| 0| 1| 0| 0| 0|
269| 138| 0| 811| 810| 0| 0| 18545| 548|
76380| 9722| 1060| 0| 1| 0| 0| 0|
250| 135| 0| 1195| 1193| 0| 0| 14786| 414|
99922| 9811| 779| 0| 0| 0| 0| 0|
281| 124| 0| 902| 900| 0| 0| 21853| 589|
Kup ~ # rtstat -i60 -c6000
rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|
rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|
rt_cache|
entries| in_hit|in_slow_|in_slow_|in_no_ro| in_brd|in_marti|in_marti|
out_hit|out_slow|out_slow|gc_total|gc_ignor|gc_goal_|gc_dst_o|in_hlist|
out_hlis|
| | tot| mc| ute| | an_dst|
an_src| | _tot| _mc| | ed| miss| verflow|
_search|t_search|
122053| 150955| 14888| 0| 25| 1| 0| 0|
4611| 2090| 0| 15820| 15789| 0| 0| 369513| 11562|
105226| 10215| 872| 0| 0| 0| 0| 0|
279| 116| 0| 988| 986| 0| 0| 30343| 799|
126236| 10462| 924| 0| 0| 0| 0| 0|
260| 120| 0| 1044| 1042| 0| 0| 31699| 782|
114492| 9782| 884| 0| 0| 0| 0| 0|
253| 120| 0| 1005| 1003| 0| 0| 29695| 722|
After ip route flush cache
Kup ~ # rtstat -i60 -c6000
rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|
rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|
rt_cache|
entries| in_hit|in_slow_|in_slow_|in_no_ro| in_brd|in_marti|in_marti|
out_hit|out_slow|out_slow|gc_total|gc_ignor|gc_goal_|gc_dst_o|in_hlist|
out_hlis|
| | tot| mc| ute| | an_dst|
an_src| | _tot| _mc| | ed| miss| verflow|
_search|t_search|
9088| 202136| 19262| 0| 29| 1| 0| 0|
5976| 2696| 0| 20647| 20606| 0| 0| 521714| 15415|
!!!!!
I am not wrong, ip route flush cache doesn't work at 2.6.25-rc7. I will make
sure about that now.
On Thu, 27 Mar 2008 15:03:08 -0700 (PDT), David Miller wrote
> From: Eric Dumazet <dada1@...mosbay.com>
> Date: Thu, 27 Mar 2008 19:56:09 +0100
>
> > Maybe some netfilter problem ?
> >
> > Please tell us more about your machine ;)
>
> I'm beginning to suspect it's IFB and shaping somehow.
>
> If those variables could be eliminated by eliminating them
> from the configuration, it would help diagnose this a lot.
> --
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--
Denys Fedoryshchenko
Technical Manager
Virtual ISP S.A.L.
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