Floating point exception at month_total_table ()

[Jani Ollikainen]

Hi,

Today I noticed this:

# uname -a
Linux domain.tld 2.6.18-92.1.22.el5 #1 SMP Tue Dec 16 11:57:43 EST 2008 x86_64 x86_64 x86_64 GNU/Linux

# LANG=fi_FI.utf8 awffull-3.10.2/src/awffull -p -n mustikka -o mustikka mustikka_1.txt
Floating point exception

# cat mustikka_1.txt
66.249.71.132 mustikkatalli.domain.tld - [27/Mar/2009:07:38:57 +0200] "GET /sitemap.php HTTP/1.1" 200 316 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"

# cat mustikka/awffull.hist
3 2008 769 687 40 4750 28 26 303 70

Strace:
open("usage_200803.html", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 4
stat("/awffull/awffull.css", 0x7fff87780c60) = -1 ENOENT (No such file or directory)
open("/awffull/awffull.css", O_WRONLY|O_CREAT|O_EXCL, 0644) = -1 ENOENT (No such file or directory)
fstat(4, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8526a56000
stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=1883, ...}) = 0
stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=1883, ...}) = 0
stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=1883, ...}) = 0
--- SIGFPE (Floating point exception) @ 0 (0) ---
+++ killed by SIGFPE +++

Gdb:
(gdb) run
Starting program: /root/awffull/awffull-3.10.2/src/awffull -p -n mustikka -o mustikka mustikka_1.txt

Program received signal SIGFPE, Arithmetic exception.
0x000000000040e254 in month_total_table ()
(gdb) backtrace
#0 0x000000000040e254 in month_total_table ()
#1 0x000000000041a40c in write_month_html ()
#2 0x0000000000425207 in main ()

[Steve McInerney (spm)]

Hey Jani,

not suggesting this doesn't need a catch/fix for it or anything:
but did you realise you're reading from a March 2008 history, only; and then running with a March 2009 log file entry.

does that sounds correct?

Cheers!
- Steve

[Jani Ollikainen (bestis)]

Hi,

Yes it does. I think that the user hadn't have statistics on for a year, or for some reason those weren't generated.

The system where I'm using awffull leaves the statistics once generated even if statistics isn't on for later usage.