Anybody know of problems with kernel 2.4.19 and ping? Here's why I ask:
For the past few years, I've used a python script to monitor the uptime for my DSL connection. Each minute the script runs "ping -c 1 $nameserver" to see if I can still access my ISP's DNS server.
About a month ago, I updated from Mandrake 8.2 to Mandrake 9.0 (with kernel going from 2.4.18-6mdk to 2.4.19-16mdk) and changed ISPs from DirecTV to DigitalRealm (with attendant change in DSL modem). Since then I have noticed that my script hangs fairly reqularly - sometimes once a day, sometimes several times a day.
As a test, for the last couple of days I'm running the script from from three machines, with different kernels - two with 2.4.18-6mdk (from Mandrake 8.2) and one with 2.4.19-16mdk (from Mandrake 9.0). I've had several failures with the 2.4.19 machine and none with the 2.4.18.
When the problem occurs, I've used netstat and ps to see what's happening. Here's typical output:
[root@osage relson]# netstat -pvlA inet | grep ping
raw 0 0 osage.osagesoftwar:icmp *:* 7 6178/ping
[root@osage relson]# ps -wl 6177 6178
F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD
000 S 0 6177 22689 0 69 0 - 493 wait4 ? 0:00 sh -c ping -c 1 166.90.244.250 >/dev/null
100 S 0 6178 6177 0 69 0 - 355 wait_f ? 0:00 ping -c 1 166.90.244.250
Is anybody familiar with this problem? Is there a solution?
Thanks.
David
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David Relson Osage Software Systems, Inc.
[EMAIL PROTECTED] Ann Arbor, MI 48103
www.osagesoftware.com tel: 734.821.8800
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