Package: procps Version: 1:3.3.3-3 Severity: normal Kernel 3.14.2 with grsecurity
$ vmstat
procs -----------memory---------- ---swap-- -----io-----system------cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
Floating point exception
vmstat.c:
diow = *cpu_iow;
dstl = *cpu_zzz;
Div = duse + dsys + didl + diow + dstl; // Div == 0
divo2 = Div / 2UL;
printf(format,
running, blocked,
unitConvert(kb_swap_used), unitConvert(kb_main_free),
unitConvert(a_option?kb_inactive:kb_main_buffers),
unitConvert(a_option?kb_active:kb_main_cached),
(unsigned)( (*pswpin * unitConvert(kb_per_page) * hz + divo2) /
Div ),
(unsigned)( (*pswpout * unitConvert(kb_per_page) * hz + divo2) /
Div ),
(unsigned)( (*pgpgin * hz + divo2) / Div ),
(unsigned)( (*pgpgout * hz + divo2) / Div ),
(unsigned)( (*intr * hz + divo2) / Div ),
(unsigned)( (*ctxt * hz + divo2) / Div ),
(unsigned)( (100*duse + divo2) / Div ),
(unsigned)( (100*dsys + divo2) / Div ),
(unsigned)( (100*didl + divo2) / Div ),
(unsigned)( (100*diow + divo2) / Div )/*,
(unsigned)( (100*dstl + divo2) / Div ) */
);
$ gdb .libs/vmstat
GNU gdb (GDB) 7.4.1-debian
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /tmp/procps/procps-3.3.3/.libs/vmstat...done.
(gdb) run
Starting program: /tmp/procps/procps-3.3.3/.libs/vmstat
procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
Program received signal SIGFPE, Arithmetic exception.
0x00000000004035ca in new_format () at vmstat.c:276
276 (unsigned)( (100*diow + divo2) / Div
)/*,
(gdb) where
#0 0x00000000004035ca in new_format () at vmstat.c:276
#1 0x0000000000402785 in main (argc=1, argv=0x3e26a8f3c08) at vmstat.c:823
(gdb) print Div
$1 = 0
(gdb) print diow
$2 = 0
(gdb) print divo2
$3 = 0
(gdb) print duse
$5 = 0
(gdb) print dsys
$6 = 0
(gdb) print didl
$7 = 0
(gdb) print diow
$8 = 0
(gdb) print dstl
$9 = 0
(gdb)
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