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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20080328094413.M11383@visp.net.lb \
--to=denys@visp.net.lb \
--cc=dada1@cosmosbay.com \
--cc=netdev@vger.kernel.org \
--cc=netfilter-devel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.