* [LARTC] "dst cache overflow" messages and crash
@ 2007-02-19 13:38 Frédéric Massot
2007-02-20 10:46 ` Frédéric Massot
2007-02-21 13:39 ` Ivan Vladimirov
0 siblings, 2 replies; 3+ messages in thread
From: Frédéric Massot @ 2007-02-19 13:38 UTC (permalink / raw)
To: lartc
Hi,
I regularly have errors (kernel: dst cache overflow) and crash of a
firewall under Linux 2.6.17 and the route patch from Julian Anastasov.
With rtstat I see that the route cache size increases regularly without
never decreasing.
I have this parameters:
fw:/proc/sys/net/ipv4/route# grep . *
error_burst:1250
error_cost:250
gc_elasticity:15
gc_interval:60
gc_min_interval:0
gc_min_interval_ms:500
gc_thresh:4096
gc_timeout:300
max_delay:10
max_size:65536
min_adv_mss:256
min_delay:2
min_pmtu:552
mtu_expires:600
redirect_load:5
redirect_number:9
redirect_silence:5120
secret_interval:600
I can increase the maximum size of the cache, but that will do nothing
but delay the crash.
Can you help me?
Regards.
--
=======================
| FRÉDÉRIC MASSOT |
| http://www.juliana-multimedia.com |
| mailto:frederic@juliana-multimedia.com |
=============Þbian=GNU/Linux=
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* Re: [LARTC] "dst cache overflow" messages and crash
2007-02-19 13:38 [LARTC] "dst cache overflow" messages and crash Frédéric Massot
@ 2007-02-20 10:46 ` Frédéric Massot
2007-02-21 13:39 ` Ivan Vladimirov
1 sibling, 0 replies; 3+ messages in thread
From: Frédéric Massot @ 2007-02-20 10:46 UTC (permalink / raw)
To: lartc
Charlie Meyer wrote:
> i ran into this problem a while ago, and i did the following:
>
> echo 8192 > /proc/sys/net/ipv4/neigh/default/gc_thresh1
> echo 8192 > /proc/sys/net/ipv4/neigh/default/gc_thresh2
> echo 8192 > /proc/sys/net/ipv4/neigh/default/gc_thresh3
>
> and all my problems were solved
>
> -Charlie
>
> On 2/19/07, *Frédéric Massot* <frederic@juliana-multimedia.com
> <mailto:frederic@juliana-multimedia.com>> wrote:
>>
>> Hi,
>>
>> I regularly have errors (kernel: dst cache overflow) and crash of a
>> firewall under Linux 2.6.17 and the route patch from Julian Anastasov.
>>
>> With rtstat I see that the route cache size increases regularly without
>> never decreasing.
>>
>> I have this parameters:
>> fw:/proc/sys/net/ipv4/route# grep . *
>> error_burst:1250
>> error_cost:250
>> gc_elasticity:15
>> gc_interval:60
>> gc_min_interval:0
>> gc_min_interval_ms:500
>> gc_thresh:4096
>> gc_timeout:300
>> max_delay:10
>> max_size:65536
>> min_adv_mss:256
>> min_delay:2
>> min_pmtu:552
>> mtu_expires:600
>> redirect_load:5
>> redirect_number:9
>> redirect_silence:5120
>> secret_interval:600
>>
>> I can increase the maximum size of the cache, but that will do nothing
>> but delay the crash.
Hi,
I think that my problem comes from the route cache and not ARP cache:
- http://mailman.ds9a.nl/pipermail/lartc/2007q1/020061.html
- http://mailman.ds9a.nl/pipermail/lartc/2007q1/020067.html
I read several thread of discusion on this problem, but I did not find a
solution.
Regards.
--
=======================
| FRÉDÉRIC MASSOT |
| http://www.juliana-multimedia.com |
| mailto:frederic@juliana-multimedia.com |
=============Þbian=GNU/Linux=_______________________________________________
LARTC mailing list
LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [LARTC] "dst cache overflow" messages and crash
2007-02-19 13:38 [LARTC] "dst cache overflow" messages and crash Frédéric Massot
2007-02-20 10:46 ` Frédéric Massot
@ 2007-02-21 13:39 ` Ivan Vladimirov
1 sibling, 0 replies; 3+ messages in thread
From: Ivan Vladimirov @ 2007-02-21 13:39 UTC (permalink / raw)
To: lartc
Frédéric Massot wrote:
> Hi,
>
> I regularly have errors (kernel: dst cache overflow) and crash of a
> firewall under Linux 2.6.17 and the route patch from Julian Anastasov.
>
> With rtstat I see that the route cache size increases regularly without
> never decreasing.
>
> I have this parameters:
> fw:/proc/sys/net/ipv4/route# grep . *
> error_burst:1250
> error_cost:250
> gc_elasticity:15
> gc_interval:60
> gc_min_interval:0
> gc_min_interval_ms:500
> gc_thresh:4096
> gc_timeout:300
> max_delay:10
> max_size:65536
> min_adv_mss:256
> min_delay:2
> min_pmtu:552
> mtu_expires:600
> redirect_load:5
> redirect_number:9
> redirect_silence:5120
> secret_interval:600
>
> I can increase the maximum size of the cache, but that will do nothing
> but delay the crash.
>
> Can you help me?
>
> Regards.
max_sizee536
is to low increase size to 256k
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2007-02-19 13:38 [LARTC] "dst cache overflow" messages and crash Frédéric Massot
2007-02-20 10:46 ` Frédéric Massot
2007-02-21 13:39 ` Ivan Vladimirov
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