Modem freezeup again
I posted a couple days ago (to Debian User's) about my modem freezing up. I got a couple
suggestions and am now getting around to trying to solve this problem.
The problem has increased in frequency so that every time after logging
off using "poff" my modem can't be accessed. I have to shut the system
down completely (reboot won't work) and then restart before I can use "pon"
to log on again. In a couple instances I had to shutdown twice in
a row before I could use my modem.
After using "pon" and my modem doesn't work "plog looks like this:
~$ plog
Feb 1 02:55:05 XYF pppd[484]: Exit.
Feb 1 02:55:35 XYF pppd[469]: Exit.
Feb 1 03:14:22 XYF pppd[508]: pppd 2.3.5 started by kent, uid 1000
Feb 1 03:14:23 XYF chat[509]: abort on (BUSY)
Feb 1 03:14:23 XYF chat[509]: abort on (NO CARRIER)
Feb 1 03:14:23 XYF chat[509]: abort on (VOICE)
Feb 1 03:14:23 XYF chat[509]: abort on (NO DIALTONE)
Feb 1 03:14:23 XYF chat[509]: abort on (NO ANSWER)
Feb 1 03:14:23 XYF chat[509]: send (ATZ^M)
Feb 1 03:14:23 XYF chat[509]: expect (OK)
Then if I use "poff" and then "pon" the plog readout is:
~$ plog
Feb 1 03:17:09 XYF chat[517]: abort on (NO DIALTONE)
Feb 1 03:17:09 XYF chat[517]: abort on (NO ANSWER)
Feb 1 03:17:09 XYF chat[517]: send (ATZ^M)
Feb 1 03:17:09 XYF chat[517]: expect (OK)
Feb 1 03:17:14 XYF pppd[516]: Terminating on signal 15.
Feb 1 03:17:14 XYF chat[517]: SIGTERM
Feb 1 03:17:14 XYF pppd[516]: Connect script failed
Feb 1 03:17:17 XYF pppd[530]: pppd 2.3.5 started by kent, uid 1000
Feb 1 03:17:17 XYF pppd[530]: Device ttyS0 is locked by pid 516
Feb 1 03:17:17 XYF pppd[530]: Exit.
"ps a" tells me this:
~$ ps a
PID TTY STAT TIME COMMAND
174 1 S 0:00 /sbin/getty 38400 tty1
175 2 S 0:00 /sbin/getty 38400 tty2
176 3 S 0:00 /sbin/getty 38400 tty3
177 4 S 0:00 /sbin/getty 38400 tty4
178 5 S 0:00 /sbin/getty 38400 tty5
179 6 S 0:00 /sbin/getty 38400 tty6
366 p1 S 0:00 bash
386 p1 S 0:24 netscape -ncols 64
387 p1 S 0:00 (dns helper)
534 p1 R 0:00 ps a
If I use "poff" and "pon" again plog says:
~$ plog
Feb 1 03:22:20 XYF chat[573]: abort on (NO DIALTONE)
Feb 1 03:22:21 XYF chat[573]: abort on (NO ANSWER)
Feb 1 03:22:21 XYF chat[573]: send (ATZ^M)
Feb 1 03:22:21 XYF chat[573]: expect (OK)
Feb 1 03:22:29 XYF pppd[572]: Terminating on signal 15.
Feb 1 03:22:29 XYF chat[573]: SIGTERM
Feb 1 03:22:29 XYF pppd[572]: Connect script failed
Feb 1 03:22:38 XYF pppd[588]: pppd 2.3.5 started by kent, uid 1000
Feb 1 03:22:38 XYF pppd[588]: Device ttyS0 is locked by pid 572
Feb 1 03:22:38 XYF pppd[588]: Exit.
And ps says:
~$ ps a
PID TTY STAT TIME COMMAND
174 1 S 0:00 /sbin/getty 38400 tty1
175 2 S 0:00 /sbin/getty 38400 tty2
176 3 S 0:00 /sbin/getty 38400 tty3
177 4 S 0:00 /sbin/getty 38400 tty4
178 5 S 0:00 /sbin/getty 38400 tty5
179 6 S 0:00 /sbin/getty 38400 tty6
572 S0 S 0:00 /usr/sbin/pppd call provider
366 p1 S 0:00 bash
386 p1 S 0:26 netscape -ncols 64
387 p1 S 0:00 (dns helper)
591 p1 R 0:00 ps a
If I su to root and use "kill 572" I get:
XYF:/home/kent# kill 572
bash: kill: (572) - No such pid
If I "su" to root and try "killall pppd" I get:
XYF:/home/kent# killall pppd
pppd: no process killed
There have been times when the modem is locked up I have looked at the
file /var/lock/LCK..ttyS0
with "cat" and the pid number that seems to be locking up the modem is
listed. I removed this file and I still couldn't dial in to my isp.
Sometimes when I'm in lockup and tried to look at /var/lock/LCK..ttyS0
I'm told that the file or directory doesn't exist. Another thing I have
seen is something along the lines of 'Device ttyS0 is locked by bash.'
I have tried using "poff" a few times during lockup. This is all very
confusing. Sometimes "plog" lists pid numbers that "ps a" says don't
exist. When I try killing processes they don't exist.
My modem is a Zoom/Fax modem 56k, model 2919.
I'm stumped. I hope someone can help. I'm going to wear my machine out
rebooting.
Thanks,
Kent
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