pom-ng:troubleshooting
Troubleshooting
Crash / Segmentation fault
In order to troubleshoot crashes, pom-ng must be compiled with debug information :
# ./configure CFLAGS="-O0 -pipe -ggdb3" # make clean # make # make install
This step is very important in order to find out where the crash occurs.
The best way to identify where the crash occurs is to run pom-ng inside gdb :
# gdb pom-ng GNU gdb (Gentoo 7.5.1 p2) 7.5.1 [...] Reading symbols from /usr/local/bin/pom-ng...done. (gdb)
Once gdb is started you need to run the program and reproduce the crash :
(gdb) run -d 5 Starting program: /usr/local/bin/pom-ng -d 5 [...]
When the crash occurs, you'll get back to the gdb prompt. Here is an example :
[...] datastore: Error while locking mutex in datastore.c:621 : Invalid argument Program received signal SIGABRT, Aborted. [Switching to Thread 0x7fffdbfff700 (LWP 13470)] 0x00007ffff5d09015 in raise () from /lib64/libc.so.6 (gdb)
The command “bt full” will already provide a lot of informations about the issue :
(gdb) bt full #0 0x00007ffff5d09015 in raise () from /lib64/libc.so.6 No symbol table info available. #1 0x00007ffff5d0a48b in abort () from /lib64/libc.so.6 No symbol table info available. #2 0x00007ffff7bc8ee1 in datastore_connection_new (d=0x62ab70) at datastore.c:621 err_num = 22 res = 0x7fffdbffe930 [...] (gdb)
* Make sure you provide the full output of gdb (even before you run the pom-ng if possible) in your bug report.*
pom-ng/troubleshooting.txt · Last modified: 2020/05/26 21:59 by 127.0.0.1