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Message-Id: <20080328094413.M11383@visp.net.lb> Date: Fri, 28 Mar 2008 11:50:14 +0200 From: "Denys Fedoryshchenko" <denys@...p.net.lb> To: Eric Dumazet <dada1@...mosbay.com> Cc: netdev@...r.kernel.org, netfilter-devel@...r.kernel.org Subject: Re: kernel 2.6.25-rc7 highly unstable on high load 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. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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