diff --git a/doc/faq.html b/doc/faq.html index 82fec897..40dd8f49 100755 --- a/doc/faq.html +++ b/doc/faq.html @@ -50,6 +50,7 @@ which should be changed for the whole thread if that problem has been fixed.
+
+Bugs are constantly fixed inside elogd so a upgrade to the current +version is recommended as a first measrue. If that does not help, the key +will be the reproducibility of the crash. I only can fix problems if I can +reproduce them. Sometimes it's related to strange logbook entries which cause +elogd to crash when they are edited. So if there is a way to reproducible +trigger the problem, I need the files and confiration related with it. If +I can reproduce it in my local installation, I can fix it pretty soon.
+ +If that is not possible, an alternative is to run elgod under a debugger, and +do a stack trace if the program dies. Under linux, this can be done using +the gdb debugger, which might look like this: +
+[~/elog]$ gdb ./elogd +GNU gdb Red Hat Linux (6.5-25.el5rh) +... + +(gdb) run +Starting program: /afs/psi.ch/user/r/ritt/elog/elogd +elogd 2.7.5 built Dec 2 2008, 10:47:09 revision 2147 +ImageMagick detected +Indexing logbooks ... test + +Program received signal SIGSEGV, Segmentation fault. +0x08054beb in el_index_logbooks () at src/elogd.c:3892 +3892 *p = (char)1; +(gdb) where +#0 0x08054beb in el_index_logbooks () at src/elogd.c:3892 +#1 0x080b8774 in server_loop () at src/elogd.c:27565 +#2 0x080bbdd5 in main (argc=1, argv=0xbfee5b54) at src/elogd.c:28923 +(gdb) ++ +So the basic command is to make a stack trace with "where" after a +segmentation fault. This tells me where in the code something wrong happened +(in this case it was inside the function el_index_logbooks() at line 3892. +Please send me this information and I will try then to figure out what was +wrong.