Date: Tue, 28 Jun 2005 13:31:12 -0400 From: Gary Mu1der <gmulder@infotechfl.com> To: stable@freebsd.org Subject: Re: On recent crashes Message-ID: <42C18960.10608@infotechfl.com> In-Reply-To: <C058B7D6-D820-4662-9DFD-685733D9DB39@khera.org> References: <1119950428.22027.1.camel@tarkhil> <C7F95488-8AB6-48D7-85F2-9B400B8F5C31@khera.org> <42C17281.6010102@infotechfl.com> <C058B7D6-D820-4662-9DFD-685733D9DB39@khera.org>
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Vivek Khera wrote:
>> If you have a spare server you don't mind crashing, can you try
>> running 20-60 instances of the following script:
>>
>> #!/bin/sh
>>
>> while :
>> do
>> arp -d <some valid IP> >/dev/null 2>&1
>> ping -c 1 -t 1 <the same valid IP> >/dev/null 2>&1
>> done
>>
>
> all copies pinging the same remote IP or different remote IP's?
Different, as the FreeBSD systems I was pinging were rate-limiting the
pings.
Here's excatly what I'm doing:
d5# cat arping.sh
#!/bin/sh
while :
do
arp -d 192.168.4.$1 >/dev/null 2>&1;
ping -c 1 -t 1 192.168.4.$1 >/dev/null 2>&1;
done
# for X in 13 4 101 44 13 4 101 44 13 4 101 44 13 4 101 44 13 4 101 44
13 4 101 44 13 4 101 44 13 4 101 44; do ./arping.sh $X & done
Gary
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