LinuxQuestions.org - tc command gives segmentation fault

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- - tc command gives segmentation fault (https://www.linuxquestions.org/questions/linux-networking-3/tc-command-gives-segmentation-fault-423205/)

tc command gives segmentation fault

Hello!

I'm new to QoS so I'm not sure if I'm doing something wrong or what's happening. After a couple of tc commands I suddenly got a segmentation fault error:

Code:

ruter:/boot# tc qdisc add dev eth0 root handle 1: htb default 40

ruter:/boot# tc class add dev eth0 parent 1: classid 1:1 htb rate 824kbit burst 2k



ruter:/boot# tc class add dev eth0 parent 1:1 classid 1:10 htb rate 274kbit ceil 824kbit burst 2k

ruter:/boot# tc class add dev eth0 parent 1:1 classid 1:20 htb rate 274kbit ceil 824kbit burst 2k

ruter:/boot# tc class add dev eth0 parent 1:1 classid 1:30 htb rate 274kbit ceil 824kbit burst 2k

ruter:/boot# tc class add dev eth0 parent 1:1 classid 1:40 htb rate 2kbit ceil 824kbit burst 2k



ruter:/boot# tc qdisc add dev eth0 parent 1:10 handle 10: pfifo_fast

Segmentation fault

Is this my fault, or something in the program?

Cheers

LARTC mailinglist suggests checking if you're running iproute2 current since it fixes probs with segfaulting due to pfifo_fast. If that doesn't help run tc through strace in verbose mode. If errors are clear search for them else post to the iproute2 mailinglist / package maintainer.

Great, thank you! I upgraded to the testing release of iproute and it worked. (Well as it turns out, pfifo_fast is only allowed as a root qdisc, but at least I got one step further :) ...)