+++ This bug was initially created as a clone of Bug #912003 +++

Description of problem:


Version-Release number of selected component (if applicable):


How reproducible:
always

Steps to Reproduce:
(You may need a beaker machine.)
1 yum install -y kernel-kernel-infiniband-stream

2 cd /mnt/tests/kernel/infiniband/stream

3 make (after the stream_c.exe build, kill make. We only need stream_c.exe, it is unnecessary to wait make exit.)

4 [root@rdma02 stream]# sh -x memusage -p x.png ./stream_c.exe
+ memusageso='/usr/\$LIB/libmemusage.so'
+ memusagestat=/usr/bin/memusagestat
+ TEXTDOMAIN=libc
+ buffer=
+ data=
+ memusagestat_args=
+ notimer=
+ png=
+ progname=
+ tracemmap=
+ test 3 -gt 0
+ case "$1" in
+ test 3 -eq 1
+ shift
+ png=x.png
+ shift
+ test 1 -gt 0
+ case "$1" in
+ break
+ test 1 -eq 0
+ add_env='LD_PRELOAD=/usr/\$LIB/libmemusage.so'
+ datafile=
+ test -n ''
+ test -n x.png
++ mktemp -t memusage.XXXXXX
+ datafile=/tmp/memusage.ISTXXc
+ trap 'rm -f "$datafile"; exit 1' HUP INT QUIT TERM PIPE
+ test -n /tmp/memusage.ISTXXc
+ add_env='LD_PRELOAD=/usr/\$LIB/libmemusage.so MEMUSAGE_OUTPUT=/tmp/memusage.ISTXXc'
+ test -n ''
+ test -n ''
+ test -n ''
+ test -n ''
+ eval 'LD_PRELOAD=/usr/\$LIB/libmemusage.so' MEMUSAGE_OUTPUT=/tmp/memusage.ISTXXc '"$@"'
++ LD_PRELOAD='/usr/$LIB/libmemusage.so'
++ MEMUSAGE_OUTPUT=/tmp/memusage.ISTXXc
++ ./stream_c.exe
-------------------------------------------------------------
STREAM version $Revision: 5.9 $
-------------------------------------------------------------
This system uses 8 bytes per DOUBLE PRECISION word.
-------------------------------------------------------------
Array size = 200000000, Offset = 0
Total memory required = 4577.6 MB.
Each test is run 10 times, but only
the *best* time for each is used.
-------------------------------------------------------------
Printing one line per active thread....
-------------------------------------------------------------
Your clock granularity/precision appears to be 1 microseconds.
Each test below will take on the order of 304234 microseconds.
   (= 304234 clock ticks)
Increase the size of the arrays if this shows that
you are not getting at least 20 clock ticks per test.
-------------------------------------------------------------
WARNING -- The above is only a rough guideline.
For best results, please be sure you know the
precision of your system timer.
-------------------------------------------------------------
Function      Rate (MB/s)   Avg time     Min time     Max time
Copy:        7861.7711       0.4102       0.4070       0.4155
Scale:       7041.7094       0.4576       0.4544       0.4611
Add:         7227.5554       0.6695       0.6641       0.6745
Triad:       7719.6845       0.6267       0.6218       0.6308
-------------------------------------------------------------
Solution Validates
-------------------------------------------------------------

Memory usage summary: heap total: 0, heap peak: 0, stack peak: 1696
         total calls   total memory   failed calls
 malloc|          0              0              0
realloc|          0              0              0  (nomove:0, dec:0, free:0)
 calloc|          0              0              0
   free|         22              0
Histogram for block sizes:
+ result=0
+ test -n x.png -a -n /tmp/memusage.ISTXXc -a -s /tmp/memusage.ISTXXc
+ case $png in
+ /usr/bin/memusagestat /tmp/memusage.ISTXXc x.png
/usr/bin/memusage: line 266:  6787 Floating point exception(core dumped) $memusagestat $memusagestat_args "$datafile" "$png"
+ test -z '' -a -n /tmp/memusage.ISTXXc
+ rm -f /tmp/memusage.ISTXXc
+ exit 0

[root@rdma02 stream]# gdb -q /usr/bin/memusagestat core.6787 
Reading symbols from /usr/bin/memusagestat...Reading symbols from /usr/lib/debug/usr/bin/memusagestat.debug...done.
done.
[New LWP 6787]
Core was generated by `/usr/bin/memusagestat /tmp/memusage.ISTXXc x.png'.
Program terminated with signal 8, Arithmetic exception.
#0  0x00000000004017ba in main (argc=<optimized out>, argv=<optimized out>) at memusagestat.c:323
323	      cnt = ((ysize - 40) * (maxsize_heap / 4 * line / heap_scale)) /
Missing separate debuginfos, use: debuginfo-install expat-2.1.0-4.el7.x86_64 fontconfig-2.10.2-1.el7.x86_64 freetype-2.4.10-2.4.el7.x86_64 libX11-1.5.0-3.el7.x86_64 libXau-1.0.6-4.el7.x86_64 libXpm-3.5.10-2.el7.x86_64 libjpeg-turbo-1.2.1-4.el7.x86_64 libxcb-1.9-1.el7.x86_64
(gdb) l
318	  gdImageString (im_out, gdFontSmall, xsize - 37, 14,
319			 (unsigned char *) buf, green);
320	
321	  for (line = 1; line <= 3; ++line)
322	    {
323	      cnt = ((ysize - 40) * (maxsize_heap / 4 * line / heap_scale)) /
324		(maxsize_heap / heap_scale);
325	      gdImageDashedLine (im_out, 40, ysize - 20 - cnt, xsize - 40,
326				 ysize - 20 - cnt, red);
327	      snprintf (buf, sizeof (buf), heap_format, maxsize_heap / 4 * line /
Actual results:
core dumped.

Expected results:
No core dumped.

Additional info:

--- Additional comment from Siddhesh Poyarekar on 2013-02-19 07:30:23 EST ---

It's easily reproducible with this:

  int main () {return 0;}

I'll see what's wrong; it looks like a divide-by-zero.

--- Additional comment from Siddhesh Poyarekar on 2013-02-19 09:31:40 EST ---

I've posted a candidate patch:

http://sourceware.org/ml/libc-alpha/2013-02/msg00378.html

--- Additional comment from Honggang LI on 2013-02-19 20:43:47 EST ---



--- Additional comment from Siddhesh Poyarekar on 2013-02-26 03:57:12 EST ---

Fixed upstream:

http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=7da6d9ed266105e0ebefd01a4b6bf08bf56257c3