From: Denys Fedoryshchenko <denys@visp.net.lb>
To: <netdev@vger.kernel.org>
Subject: CBQ(but probably u32 filter bug), kernel "freeze", at least from 3.2.0
Date: Tue, 28 Aug 2012 07:50:01 +0300 [thread overview]
Message-ID: <a680a8297b2f099eb713b266792b9b82@visp.net.lb> (raw)
Hi
Got information from friend, confirmed that it crashed at least two my
boxes also :)
3.0.5-rc1 is working fine, 3.4.1 , 3.2.0 from ubuntu - crashing
No watchdog fired, and didn't got yet significant debugging
information.
Very easy to reproduce:
1)run the script
2)ping 192.168.3.234
script:
DEV_OUT=eth0
ICMP="match ip protocol 1 0xff"
U32="protocol ip u32"
DST="match ip dst"
tc qdisc add dev $DEV_OUT root handle 1: cbq avpkt 1000 bandwidth
100mbit
tc class add dev $DEV_OUT parent 1: classid 1:1 cbq rate 512kbit allot
1500 prio 5 bounded isolated
tc filter add dev $DEV_OUT parent 1: prio 3 $U32 $ICMP
$DST 192.168.3.234 flowid 1:
tc qdisc add dev $DEV_OUT parent 1:1 sfq perturb 10
---
Denys Fedoryshchenko, Network Engineer, Virtual ISP S.A.L.
next reply other threads:[~2012-08-28 4:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-28 4:50 Denys Fedoryshchenko [this message]
2012-08-28 10:59 ` CBQ(but probably u32 filter bug), kernel "freeze", at least from 3.2.0 Eric Dumazet
2012-09-06 8:40 ` Eric Dumazet
2012-09-06 13:47 ` Denys Fedoryshchenko
2012-09-06 13:56 ` Eric Dumazet
-- strict thread matches above, loose matches on Subject: below --
2012-09-11 22:50 Denys Fedoryshchenko
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