Buffer overrun while doing tests like format/c90-printf-1.c on linux?

[Joern Rennecke <joern dot rennecke at superh dot com>]

Alexandre, David, what version of the kernel / libexpect /
libtcl / libdl / libm / libutil / libc / dejagnu / expect are
you using so that you can get consistently clean results?
Or are you checking the results by hand to make sure they
are sound?

-- 
--------------------------
SuperH
2430 Aztec West / Almondsbury / BRISTOL / BS32 4AQ
T:+44 1454 462330
I've been seen sporadical spurious failures for tests that generate
a lot of gcc diagnostic output.  Looking at the log file, it appears
that the output is truncated, so that one ore more tests for
warnings / errors fail, and then an incomplete warning / error
line is reported as excess errors.  I've seen this both on
liux native tests and linux-hosted cross simulator tests.
The pattern that appears most often is:

FAIL: gcc.dg/format/c90-printf-1.c %s with NULL (test for warnings, line 236)
FAIL: gcc.dg/format/c90-printf-1.c (test for excess errors)

I've searched the gcc mailing list for c90-printf-1.c, and found one match,
then searched the gcc-testresults mailing list, and the search engine
reported 329 matches, but would display only the first 100.  Of these 100,
83 actually showed the test for warnings / test for excess errors
pattern for c90-printf-1.c
I've calculated percentages using the assumption that the distributions of
failures in the undisplayed 229 search results are the same as in the 100
displayed ones.


i586-pc-linux-gnu

Glen Nakamura http://gcc.gnu.org/ml/gcc/2002-05/msg02035.html

powerpc-unknown-linux-gnu

Mark Wielaard http://gcc.gnu.org/ml/gcc-testresults/2002-07/msg00483.html
 (total 167)  http://gcc.gnu.org/ml/gcc-testresults/2002-07/msg00139.html
   (33.5%)    http://gcc.gnu.org/ml/gcc-testresults/2002-06/msg00824.html
              http://gcc.gnu.org/ml/gcc-testresults/2002-06/msg00739.html
              http://gcc.gnu.org/ml/gcc-testresults/2002-06/msg00588.html
              http://gcc.gnu.org/ml/gcc-testresults/2002-06/msg00469.html
              http://gcc.gnu.org/ml/gcc-testresults/2002-06/msg00447.html
              http://gcc.gnu.org/ml/gcc-testresults/2002-06/msg00155.html
              http://gcc.gnu.org/ml/gcc-testresults/2002-05/msg01089.html
              http://gcc.gnu.org/ml/gcc-testresults/2002-05/msg00878.html
              http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00797.html
              http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00786.html
              http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00521.html
              http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00489.html
              http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00355.html
              http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00044.html
              http://gcc.gnu.org/ml/gcc-testresults/2002-03/msg00769.html

i686-pc-linux-gnu

Andris Pavenis  http://gcc.gnu.org/ml/gcc-testresults/2002-07/msg00193.html
  (total 806)   http://gcc.gnu.org/ml/gcc-testresults/2002-05/msg01113.html
    (6.94%)     http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00605.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00390.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00301.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00223.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00196.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00112.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00027.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-03/msg00865.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-03/msg00759.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-03/msg00498.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-01/msg00391.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-01/msg00319.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-01/msg00033.html
                http://gcc.gnu.org/ml/gcc-testresults/2001-12/msg00351.html
                http://gcc.gnu.org/ml/gcc-testresults/2001-12/msg00313.html
Andreas Jaeger  http://gcc.gnu.org/ml/gcc-testresults/2002-07/msg00040.html
  (total 941)   http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00388.html
    (3.50%)     http://gcc.gnu.org/ml/gcc-testresults/2002-03/msg00648.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-03/msg00608.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-03/msg00422.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-02/msg00081.html
                http://gcc.gnu.org/ml/gcc-testresults/2001-12/msg00253.html
                http://gcc.gnu.org/ml/gcc-testresults/2001-12/msg00108.html
                http://gcc.gnu.org/ml/gcc-testresults/2001-12/msg00016.html
                http://gcc.gnu.org/ml/gcc-testresults/2001-11/msg00397.html
Gordon Sadler   http://gcc.gnu.org/ml/gcc-testresults/2002-06/msg00454.html
  (total 578)   http://gcc.gnu.org/ml/gcc-testresults/2002-05/msg00678.html
    (7.97%)     http://gcc.gnu.org/ml/gcc-testresults/2002-05/msg00472.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00749.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00570.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-03/msg00227.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-02/msg00314.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-02/msg00201.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-01/msg00436.html
                http://gcc.gnu.org/ml/gcc-testresults/2001-12/msg00446.html
                http://gcc.gnu.org/ml/gcc-testresults/2001-12/msg00399.html
                http://gcc.gnu.org/ml/gcc-testresults/2001-12/msg00239.html
                http://gcc.gnu.org/ml/gcc-testresults/2001-12/msg00202.html
                http://gcc.gnu.org/ml/gcc-testresults/2001-11/msg00348.html
Neil Booth      http://gcc.gnu.org/ml/gcc-testresults/2002-05/msg00822.html
                http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00648.html
(total 205 - 3.21%)
Michael Ritzert http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00456.html
(total 110 - 2.99%)
Peter Schmid    http://gcc.gnu.org/ml/gcc-testresults/2001-12/msg00129.html
(total 179 - 1.84%)

Postings of test results for i686-linux-gnu by people who posted since April:

Andrew Pinski: 73 postings - 0%
David Ronis: 183 postings - 0.0%
vin shelton: 38 postings - 0%
Joe Buck: 9 postings - 0%
root: 52 postings - 0%
Alexandre Oliva: 143 postings - 0.0%
Mark Wielaard: 18 postings - 0%
BLK Administrator - 1 posting
H.J. Lu - the search engine is useless for this name.
Brad Lucier: 22 postings - 0.0%

hppa-unknown-linux-gnu

John David Anglin http://gcc.gnu.org/ml/gcc-testresults/2002-06/msg00844.html
  (total 63)      http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00373.html
    (15.6%)       http://gcc.gnu.org/ml/gcc-testresults/2002-03/msg00518.html

sparc-redhat-linux-gnu

Horst von Brand http://gcc.gnu.org/ml/gcc-testresults/2002-06/msg00727.html
  (total 335)   http://gcc.gnu.org/ml/gcc-testresults/2002-05/msg01102.html
    (2.95%)     http://gcc.gnu.org/ml/gcc-testresults/2002-05/msg01075.html

sparc-suse-linux-gnu

Robert Schiele http://gcc.gnu.org/ml/gcc-testresults/2002-06/msg00684.html
  (total 101)  http://gcc.gnu.org/ml/gcc-testresults/2002-05/msg00703.html
   (16.3%)     http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00690.html
               http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00550.html
               http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00515.html

alphaev56-unknown-linux-gnu

H. J. Lu   http://gcc.gnu.org/ml/gcc-testresults/2002-06/msg00045.html
(total 50) http://gcc.gnu.org/ml/gcc-testresults/2002-05/msg00977.html
 (26.3%)   http://gcc.gnu.org/ml/gcc-testresults/2002-05/msg00993.html
           http://gcc.gnu.org/ml/gcc-testresults/2002-05/msg00872.html

i486-suse-linux-gnu

Robert Schiele http://gcc.gnu.org/ml/gcc-testresults/2002-05/msg00445.html

alpha-suse-linux-gnu

Robert Schiele http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00524.html
  (total 15)   http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00462.html
   (65.8%)     http://gcc.gnu.org/ml/gcc-testresults/2002-04/msg00230.html

i586-redhat-linux-gnu

Gcc k6 testing account
  (total 101)  http://gcc.gnu.org/ml/gcc-testresults/2002-01/msg00049.html
    (6.51%)    http://gcc.gnu.org/ml/gcc-testresults/2001-12/msg00366.html