From: "Denys Fedoryshchenko" <denys@visp.net.lb>
To: Eric Dumazet <dada1@cosmosbay.com>
Cc: netdev@vger.kernel.org, netfilter-devel@vger.kernel.org
Subject: Re: kernel 2.6.25-rc7 highly unstable on high load
Date: Fri, 28 Mar 2008 11:50:14 +0200 [thread overview]
Message-ID: <20080328094413.M11383@visp.net.lb> (raw)
In-Reply-To: <47ECA24C.10803@cosmosbay.com>
I will try do so,
And i have a bit more information, not sure if it is useful. I took risk and
running now one more loaded router, without nat this time. It has significant
less load, but maybe i will catch something here also.
Here is dmesg i got
[ 23.280155] dst_total: 4 delayed: 1 work_perf: 0 expires: 600 elapsed: 1 us
[ 23.888719] dst_total: 5 delayed: 1 work_perf: 0 expires: 1600 elapsed: 1
us
[ 25.489486] dst_total: 11 delayed: 0 work_perf: 1 expires: 4294967295
elapsed: 2 us
[ 67.187254] dst_total: 23980 delayed: 1 work_perf: 0 expires: 600 elapsed:
2 us
[ 67.807126] dst_total: 24452 delayed: 1 work_perf: 0 expires: 1600
elapsed: 3 us
[ 69.453570] dst_total: 25103 delayed: 0 work_perf: 2 expires: 4294967295
elapsed: 3 us
>>> here i run "ip route flush cache"
[ 278.911357] dst_total: 16855 delayed: 2 work_perf: 0 expires: 600 elapsed:
2 us
[ 279.530432] dst_total: 16866 delayed: 2 work_perf: 0 expires: 1600
elapsed: 1 us
[ 281.197568] dst_total: 16901 delayed: 2 work_perf: 0 expires: 3100
elapsed: 1 us
[ 284.425797] dst_total: 16981 delayed: 2 work_perf: 0 expires: 4981
elapsed: 1 us
[ 289.665137] dst_total: 17067 delayed: 2 work_perf: 0 expires: 8000
elapsed: 1 us
[ 297.960978] dst_total: 17219 delayed: 2 work_perf: 0 expires: 11000
elapsed: 1 us
[ 309.379867] dst_total: 17426 delayed: 2 work_perf: 0 expires: 14100
elapsed: 2 us
[ 323.972039] dst_total: 17629 delayed: 2 work_perf: 0 expires: 18196
elapsed: 2 us
[ 342.831626] dst_total: 13563 delayed: 2 work_perf: 0 expires: 23000
elapsed: 2 us
[ 366.592260] dst_total: 13830 delayed: 2 work_perf: 0 expires: 28000
elapsed: 2 us
[ 395.753299] dst_total: 14142 delayed: 2 work_perf: 0 expires: 33000
elapsed: 2 us
[ 429.952513] dst_total: 13156 delayed: 3 work_perf: 0 expires: 600 elapsed:
2 us
[ 430.565783] dst_total: 13164 delayed: 3 work_perf: 0 expires: 1600
elapsed: 1 us
[ 432.267868] dst_total: 13184 delayed: 3 work_perf: 0 expires: 3100
elapsed: 1 us
[ 435.457375] dst_total: 13220 delayed: 3 work_perf: 0 expires: 5700
elapsed: 2 us
[ 441.355880] dst_total: 13279 delayed: 3 work_perf: 0 expires: 8000
elapsed: 2 us
[ 449.567527] dst_total: 13363 delayed: 3 work_perf: 0 expires: 11000
elapsed: 1 us
[ 461.027956] dst_total: 13507 delayed: 3 work_perf: 0 expires: 14000
elapsed: 2 us
[ 475.568361] dst_total: 12084 delayed: 3 work_perf: 0 expires: 18000
elapsed: 2 us
Is expires values appearing 4294967295 normal?
Btw i am doing ip route flush cache only manually, normally it never happens
on this machines.
On Fri, 28 Mar 2008 08:46:20 +0100, Eric Dumazet wrote
> Denys Fedoryshchenko :
> > Already patched and tested, it doesn't change anything.
> >
> >
>
> We still leak dsts somewhere.
>
> You could try git bisect, or try to patch net/core/dst.c so that
> dst_gc_task() (line 83) displays
> route informations for say 10 first entries found in the dst_busy_list
> (refcnt, interface, source IP, dest IP, things like that) that could
> ring a bell given your netfilter rules or network conf.
--
Denys Fedoryshchenko
Technical Manager
Virtual ISP S.A.L.
next prev parent reply other threads:[~2008-03-28 9:50 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-27 6:35 kernel 2.6.25-rc7 highly unstable on high load Denys Fedoryshchenko
2008-03-27 6:40 ` David Miller
2008-03-27 7:03 ` Eric Dumazet
2008-03-27 8:36 ` Denys Fedoryshchenko
2008-03-27 8:48 ` Denys Fedoryshchenko
2008-03-27 14:41 ` Denys Fedoryshchenko
2008-03-27 14:52 ` Eric Dumazet
[not found] ` <20080327151520.M89250@visp.net.lb>
2008-03-27 16:07 ` Eric Dumazet
2008-03-27 16:29 ` Eric Dumazet
2008-03-27 18:37 ` Denys Fedoryshchenko
2008-03-27 18:56 ` Eric Dumazet
2008-03-27 19:05 ` Denis V. Lunev
2008-03-27 22:03 ` David Miller
2008-03-28 0:47 ` Denys Fedoryshchenko
2008-03-28 4:50 ` Denys Fedoryshchenko
2008-03-28 5:25 ` Denys Fedoryshchenko
2008-03-28 5:49 ` Eric Dumazet
2008-03-28 7:38 ` Denys Fedoryshchenko
2008-03-28 7:46 ` Eric Dumazet
2008-03-28 9:50 ` Denys Fedoryshchenko [this message]
2008-03-28 15:57 ` Eric Dumazet
2008-03-28 20:23 ` Stephen Hemminger
2008-03-28 20:45 ` Denys Fedoryshchenko
2008-03-28 21:17 ` Eric Dumazet
2008-03-28 23:21 ` David Miller
2008-03-29 9:35 ` Denys Fedoryshchenko
[not found] ` <20080328220902.M5377@visp.net.lb>
2008-03-29 8:31 ` Eric Dumazet
2008-03-27 7:07 ` Denys Fedoryshchenko
2008-03-27 15:01 ` Patrick McHardy
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