gpsd-dev
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [gpsd-dev] Warning messages re: AIS type 24 and type 21 message leng


From: Roy Barkas
Subject: Re: [gpsd-dev] Warning messages re: AIS type 24 and type 21 message length
Date: Wed, 20 Aug 2014 13:41:48 +1000

Building the latest head (revision release-3.10-202-geec45de) 
scons check hangs at:

Processing test/daemon/ac12.log
/home/sop/gpsd/gpsd: symbol lookup error: /home/sop/gpsd/gpsd: undefined symbol: gpsd_acquire_reporting_lock




On Wed, Aug 20, 2014 at 1:13 PM, Roy Barkas <address@hidden> wrote:
Using latest HEAD  version, the following log messages are flying through.....
If the warning message implies that the messages are not being decoded then I'm worried.
If the warning messages are just informative and the messages are being decoded anyway then that's better.

Roy

Aug 20 02:10:18 sop gpsd[3465]: message repeated 13 times: [ gpsd:WARN: AIVDM message type 24 size > 160 bits (168).]
Aug 20 02:11:24 sop gpsd[3465]: gpsd:WARN: AIVDM message type 21 size is out of range (268).
Aug 20 02:11:25 sop gpsd[3465]: gpsd:WARN: AIVDM message type 21 size is out of range (268).
Aug 20 02:12:30 sop gpsd[3465]: gpsd:WARN: AIVDM message type 24 size > 160 bits (168).
Aug 20 02:16:36 sop gpsd[3465]: message repeated 5 times: [ gpsd:WARN: AIVDM message type 24 size > 160 bits (168).]
Aug 20 02:18:09 sop gpsd[3465]: gpsd:WARN: AIVDM message type 24 of subtype unknown.
Aug 20 02:18:38 sop gpsd[3465]: gpsd:WARN: AIVDM message type 24 size > 160 bits (168).
Aug 20 02:24:12 sop gpsd[3465]: message repeated 4 times: [ gpsd:WARN: AIVDM message type 24 size > 160 bits (168).]
Aug 20 02:24:30 sop gpsd[3465]: gpsd:WARN: AIVDM message type 21 size is out of range (268).
Aug 20 02:24:58 sop gpsd[3465]: message repeated 12 times: [ gpsd:WARN: AIVDM message type 21 size is out of range (268).]
Aug 20 02:25:25 sop gpsd[3465]: gpsd:WARN: AIVDM message type 24 size > 160 bits (168).
Aug 20 02:25:31 sop gpsd[3465]: gpsd:WARN: AIVDM message type 21 size is out of range (268).
Aug 20 02:25:43 sop gpsd[3465]: message repeated 2 times: [ gpsd:WARN: AIVDM message type 21 size is out of range (268).]
Aug 20 02:27:26 sop gpsd[3465]: gpsd:WARN: AIVDM message type 24 size > 160 bits (168).
Aug 20 02:30:39 sop gpsd[3465]: gpsd:WARN: AIVDM message type 21 size is out of range (268).
Aug 20 02:31:43 sop gpsd[3465]: message repeated 21 times: [ gpsd:WARN: AIVDM message type 21 size is out of range (268).]
Aug 20 02:34:25 sop gpsd[3465]: gpsd:WARN: AIVDM message type 21 size is out of range (268).
Aug 20 02:35:50 sop gpsd[3465]: gpsd:WARN: AIVDM message type 24 size > 160 bits (168).
Aug 20 02:40:03 sop gpsd[3465]: message repeated 5 times: [ gpsd:WARN: AIVDM message type 24 size > 160 bits (168).]
Aug 20 02:41:12 sop gpsd[3465]: gpsd:WARN: AIVDM message type 21 size is out of range (268).
Aug 20 02:42:16 sop gpsd[3465]: message repeated 10 times: [ gpsd:WARN: AIVDM message type 21 size is out of range (268).]
Aug 20 02:42:19 sop gpsd[3465]: gpsd:WARN: AIVDM message type 24 size > 160 bits (168).
Aug 20 02:42:23 sop gpsd[3465]: gpsd:WARN: AIVDM message type 21 size is out of range (268).
Aug 20 02:42:24 sop gpsd[3465]: message repeated 7 times: [ gpsd:WARN: AIVDM message type 21 size is out of range (268).]
Aug 20 02:43:13 sop gpsd[3465]: gpsd:WARN: AIVDM message type 24 size > 160 bits (168).
Aug 20 02:54:08 sop gpsd[3465]: message repeated 11 times: [ gpsd:WARN: AIVDM message type 24 size > 160 bits (168).]
Aug 20 02:57:39 sop gpsd[3465]: gpsd:ERROR: AIVDM message type 24 size < 168 bits (160).
Aug 20 02:58:12 sop gpsd[3465]: gpsd:WARN: AIVDM message type 24 size > 160 bits (168).
Aug 20 02:59:15 sop gpsd[3465]: message repeated 2 times: [ gpsd:WARN: AIVDM message type 24 size > 160 bits (168).]
Aug 20 02:59:43 sop gpsd[3465]: gpsd:WARN: AIVDM message type 24 of subtype unknown.
Aug 20 02:59:49 sop gpsd[3465]: gpsd:WARN: AIVDM message type 24 size > 160 bits (168).



On Tue, Aug 19, 2014 at 11:09 AM, Eric S. Raymond <address@hidden> wrote:
Roy Barkas <address@hidden>:
> The gpsd log contains many instances of the entry:
>
> gpsd:WARN: AIVDM message type 24 size > 160 bits (168)
>
> This is odd since the correct length of a type 24 part 1 message is 168
> bits.  Perhaps the code that allowed "split-24" unintentionally induced
> this warning?

It was a typo in the length check, now fixed.
--
                <a href="" href="http://www.catb.org/~esr/" target="_blank">http://www.catb.org/~esr/">Eric S. Raymond</a>



reply via email to

[Prev in Thread] Current Thread [Next in Thread]