[vz-dev] EMH meter causes segmentation fault crashes in the vzlogger

[Andreas Goetz]

Hallo Uli,

(mal auf Deutsch) falls Du Hilfe beim kompilieren brauchst, aber jmd. per
SSH auf das System lassen kannst/ willst schick mir gerne eine PM.

Viele Grüße,
Andreas


On Tue, Jan 13, 2015 at 1:09 AM, Thorben Thuermer <r00t at constancy.org>
wrote:

> ---- Ulrich Bertl wrote ----
> > Hi development community,
> >
> > I do have a volkszaehler on a RPI running which is reading 2 out of 3
> > EMH electricity meters already for almost 12 month without a problem.
> > The headache is coming from the third meter which is also a EMH from the
> > same generation (i). The only difference is that the 2 working once are
> > from my electriciy provider and the third one is a my own (bought from
> > comet).
> >
> > The problematic meter causes an immidiate segmentation fault crash of
> > the vzlogger. I did double check that by moving the IR head from the
> > working meter(running already for days) over to the non working one
> > which immidaitly crashes the vzlogger. I did work already with Udo and
> > it seemed to be a problem with the parser in the vzlogger in combination
> > with the output of this specific meter.
> >
> > I'm using:
> > vzlogger 0.3.9 - volkszaehler.org logging utility
> > by Steffen Vogel <stv0g at 0l.de>
>
> did you (or could you) compile from source off github?
>
> http://wiki.volkszaehler.org/software/controller/vzlogger/installation_cpp-version
> if so, we could debug this to find the exact cause of the crash...
> ideally, just compile vzlogger, apt-get install gdb,
> and then run as in here:
> https://github.com/volkszaehler/vzlogger/issues/74
> (enter c for continue on the initial two "illegal instruction" errors)
>
> > I did compare the output of non working meter with the working once but
> > as a not being very expirienced in the protocol I didn't find any
> > obvious reason.
>
> trying to debug solely by looking at the input seems a very inefficient
> approach to me.
>
> - T.
>
> > This is the dump of the non working meter (which leads to the
> > segementation fault crash)
> > Do you see the problem in the hex dump?
> >
> > 0000000 1b 1b 1b 1b 01 01 01 01 76 07 00 0d 00 51 e3 a2
> > 0000020 62 00 62 00 72 63 01 01 76 01 01 07 00 0d 01 db
> > 0000040 4b e1 0b 06 45 4d 48 01 07 19 7c 24 56 01 01 63
> > 0000060 47 0f 00 76 07 00 0d 00 51 e3 a3 62 00 62 00 72
> > 0000100 63 07 01 77 01 0b 06 45 4d 48 01 07 19 7c 24 56
> > 0000120 07 01 00 62 0a ff ff 72 62 01 65 01 db d8 fc 79
> > 0000140 77 07 81 81 c7 82 03 ff 01 01 01 01 04 45 4d 48
> > 0000160 01 77 07 01 00 00 00 09 ff 01 01 01 01 0b 06 45
> > 0000200 4d 48 01 07 19 7c 24 56 01 77 07 01 00 01 08 00
> > 0000220 ff 64 00 01 82 01 62 1e 52 ff 56 00 01 9f ae ab
> > 0000240 01 77 07 01 00 01 08 01 ff 01 01 62 1e 52 ff 56
> > 0000260 00 01 9f ae ab 01 77 07 01 00 01 08 02 ff 01 01
> > 0000300 62 1e 52 ff 56 00 00 00 00 00 01 77 07 01 00 10
> > 0000320 07 00 ff 01 01 62 1b 52 ff 55 00 00 02 85 01 77
> > 0000340 07 81 81 c7 82 05 ff 01 01 01 01 83 02 8b 6a 0e
> > 0000360 6e 12 f5 d9 80 f7 30 b6 bd 5e 19 41 83 4e b0 e4
> > 0000400 3e 4a 63 23 d9 99 25 95 56 f5 e5 6e 04 04 98 c8
> > 0000420 97 38 f0 f6 df f8 78 5b 04 5d 84 e0 d6 01 77 07
> > 0000440 01 00 60 32 02 04 01 01 01 01 63 02 5e 01 77 07
> > 0000460 01 00 60 32 02 06 01 72 62 01 65 01 db d8 fc 01
> > 0000500 01 01 01 01 01 63 93 67 00 76 07 00 0d 00 51 e3
> > 0000520 a5 62 00 62 00 72 63 02 01 71 01 63 10 3d 00 00
> > 0000540 1b 1b 1b 1b 1a 01 de 0f 1b 1b 1b 1b 01 01 01 01
> > 0000560 76 07 00 0d 00 51 e3 a8 62 00 62 00 72 63 01 01
> > 0000600 76 01 01 07 00 0d 01 db 4b e3 0b 06 45 4d 48 01
> > 0000620 07 19 7c 24 56 01 01 63 74 bf 00 76 07 00 0d 00
> > 0000640 51 e3 a9 62 00 62 00 72 63 07 01 77 01 0b 06 45
> > 0000660 4d 48 01 07 19 7c 24 56 07 01 00 62 0a ff ff 72
> > 0000700 62 01 65 01 db d9 00 79 77 07 81 81 c7 82 03 ff
> > 0000720 01 01 01 01 04 45 4d 48 01 77 07 01 00 00 00 09
> > 0000740 ff 01 01 01 01 0b 06 45 4d 48 01 07 19 7c 24 56
> > 0000760 01 77 07 01 00 01 08 00 ff 64 00 01 80 01 62 1e
> > 0001000 52 ff 56 00 01 9f ae ab 01 77 07 01 00 01 08 01
> > 0001020 ff 01 01 62 1e 52 ff 56 00 01 9f ae ab 01 77 07
> > 0001040 01 00 01 08 02 ff 01 01 62 1e 52 ff 56 00 00 00
> > 0001060 00 00 01 77 07 01 00 10 07 00 ff 01 01 62 1b 52
> > 0001100 ff 55 00 00 02 96 01 77 07 81 81 c7 82 05 ff 01
> > 0001120 01 01 01 83 02 8b 6a 0e 6e 12 f5 d9 80 f7 30 b6
> > 0001140 bd 5e 19 41 83 4e b0 e4 3e 4a 63 23 d9 99 25 95
> > 0001160 56 f5 e5 6e 04 04 98 c8 97 38 f0 f6 df f8 78 5b
> > 0001200 04 5d 84 e0 d6 01 77 07 01 00 60 32 02 04 01 01
> > 0001220 01 01 63 02 5e 01 77 07 01 00 60 32 02 06 01 72
> > 0001240 62 01 65 01 db d9 00 01 01 01 01 01 01 63 cc 79
> > 0001260 00 76 07 00 0d 00 51 e3 ab 62 00 62 00 72 63 02
> > 0001300 01 71 01 63 cd 74 00 00 1b 1b 1b 1b 1a 01 bb 33
> >
> > Please let me know if you need any additional data.
> >
> > Thanks
> > Uli
>
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