[ltt-dev] "ust_3 does not contain a trace" and subsequent "segfault at 10 ip b770632f sp bf864290 error 4 in liblttvtraceread-2.6.so[b7704

[Lior Assouline]

Hi,
I'm running my program using "usttrace -o ~/trace1 ./prog" and later on trying to see the traces using

"lttv -L /usr/local/lib/lttv/plugins -m textDump --trace ~/trace1/"

and getting the following output

lior at lior-linux-desktop:~/devel/lior_branch$ lttv -L /usr/local/lib/lttv/plugins -m textDump --trace ~/trace1/23195_167510/
The input data file /home/lior/trace1/23195_167510/ust_3 does not contain a trace
The input data file /home/lior/trace1/23195_167510/ust_1 does not contain a trace
The input data file /home/lior/trace1/23195_167510/ust_2 does not contain a trace
The input data file /home/lior/trace1/23195_167510/metadata_0 does not contain a trace
The input data file /home/lior/trace1/23195_167510/metadata_1 does not contain a trace
The input data file /home/lior/trace1/23195_167510/metadata_2 does not contain a trace
The input data file /home/lior/trace1/23195_167510/ust_0 does not contain a trace
/usr/local/bin/lttv: line 15: 23354 Segmentation fault $0.real "$@"
lior at lior-linux-desktop:~/devel/lior_branch$
lior at lior-linux-desktop:~/devel/lior_branch$ sudo dmesg -c
[ 6909.533315] lttv.real[23354]: segfault at 10 ip b770632f sp bf864290 error 4 in liblttvtraceread-2.6.so[b7704000+8000]

looking at the trace dir:

lior at lior-linux-desktop:~/devel/lior_branch$ ls -la ~/trace1/23195_167510/
total 12
drwxr-xr-x 2 lior lior 4096 2011-10-09 14:27 .
drwxr-xr-x 4 lior lior 4096 2011-10-09 14:29 ..
-rw------- 1 lior lior 0 2011-10-09 14:27 metadata_0
-rw------- 1 lior lior 0 2011-10-09 14:27 metadata_1
-rw------- 1 lior lior 0 2011-10-09 14:27 metadata_2
-rw------- 1 lior lior 4096 2011-10-09 14:27 metadata_3
-rw------- 1 lior lior 0 2011-10-09 14:27 ust_0
-rw------- 1 lior lior 0 2011-10-09 14:27 ust_1
-rw------- 1 lior lior 0 2011-10-09 14:27 ust_2
-rw------- 1 lior lior 0 2011-10-09 14:27 ust_3

Any idea how to move on ?

Thanks
Lior

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