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#1 Mon Mar 14, 2011 01:43, 159 months ago.
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Member
Registered:
Oct 2010
Location: New Caledonia
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Operating system name and version: Linux 2.6.32-29-server #58-Ubuntu SMP Fri Feb 11 21:06:51 UTC 2011 x86_64 GNU/Linux Version of smsd: 3.1.14 Smsd installed from: source Name and model of a modem / phone: FALCOM TANGO-55 RS-232 Interface: mos7720 Moschip 2 port adapter converter USB-RS232 Well, I had the bad surprise to see that smsd was not running anymore. sms3 is well installed with rc-inits : GSM1 service was not running I had to restart it to make it run: Now all is OK But I would like to know if some of you have experienced this kind of problem ... I plan to check if there is no defunct flag on smsd lines and restart service is needed but I would prefer to understand how it can have been in default. Thanks in advance for your time.
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#2 Mon Mar 14, 2011 09:12, 159 months ago.
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Administrator
Registered:
May 2009
Location: Jyväskylä, Finland
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In the log there should be a line "Modem handler 0 terminated abnormally", and before that line there should be a line which tells the reason why modem process was stopped. Some fatal failures may cause abnormal termination, like error with PIN, error with spooler, or error with whitelist/blacklist file. Also, if modem cannot register to the GSM network right after smsd is started, modem process will terminate. And if the USB port is lost, smsd will stop.
If in the log there is only "Modem handler 0 terminated", and no reason for it, probably some process has sent SIGTERM to the modem process. If there is not even that line, probably SIGKILL was received.
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#3 Mon Mar 14, 2011 19:18, 159 months ago.
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Member
Registered:
Oct 2010
Location: New Caledonia
Topic owner
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cat /var/log/smsd.log.1 cat /var/log/messages.1 | grep usb From your answer, I understand that smsd has quit because USB port has been lost. It turns out that this is caused by main a main power lost. cat /var/log/ups.log I'll update my UPS script to restart smsd when power is back. Thanks so much keke to have pointed out the different ways for smsd to stop ! |
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#4 Mon Mar 14, 2011 20:26, 159 months ago.
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Administrator
Registered:
May 2009
Location: Jyväskylä, Finland
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electronico_nc wrote I'll update my UPS script to restart smsd when power is back.
Okay, but why are USB ports gone away when UPS goes on battery? Isn't it the main problem, as UPS should still deliver the power? Or is the UPS too small, and cannot feed the adapter and modem?  Anyways, in your system you could have a cron job which periodically detects if smsd and modem processes are running or not (assuming that some other reason than UPS may cause port loss and reconnect too). For example something like this: #!/bin/bash
#--------------------------------------------------------------------------
checkProcess()
{
local PSLIST=$(ps -ef | grep -v grep)
local ARG
local tmp
for ARG in "$@"
do
tmp=$(echo -n "$PSLIST" | grep "$ARG")
[ -z "$tmp" ] && echo -n "$ARG "
done
}
#--------------------------------------------------------------------------
MESSAGE=$(checkProcess "smsd -n MAINPROCESS" GSM1_ GSM2_ apache mysql)
MESSAGE=$(echo "$MESSAGE" | sed 's/_//g')
if [ -n "$MESSAGE" ]; then
MESSAGE="$MESSAGE not running."
# some actions
fi
'bash' Syntax Highlight powered by GeSHi |
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#5 Mon Mar 14, 2011 22:18, 159 months ago.
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Member
Registered:
Oct 2010
Location: New Caledonia
Topic owner
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Quote Okay, but why are USB ports gone away when UPS goes on battery? Isn't it the main problem, as UPS should still deliver the power? Or is the UPS too small, and cannot feed the adapter and modem?
UPS is a 800VA model and it well feeds the server and the modem, thanks for asking Its online power consumption is 9VA, so no trouble with this. I have tried a dozen times to unplug it's main cord (to simulate a power failure) and this has NEVER disconnected the modem USB port ... So I think it is a problem that only occurs sometimes ... I'll post if I find further infos about this. Thanks again. |
