Re: Build status for debian pspp package 0.8.3-1.2

[Ben Pfaff]

On Sun, Aug 17, 2014 at 11:48:02AM -0700, Ben Pfaff wrote:
> On Sun, Aug 17, 2014 at 04:59:24PM +0200, Friedrich Beckmann wrote:
> > here is the build status for the pspp 0.8.3-1.2 package: 
> > 
> > https://buildd.debian.org/status/package.php?p=pspp
> > 
> > Still the armhf architecture build fails but due to Bens package change the 
> > testsuite.log is visible. All four
> > failing tests fail due to a segmentation fault. The failing tests are:
> > 
> > 297: split-file.at:61   SPLIT FILE  - vs procedures
> > 485: means.at:247       MEANS harmonic and geometric means
> > 487: means.at:349       MEANS missing=table 
> > 488: means.at:459       MEANS user missing values
> 
> I did a build on the Debian machine "harris".  All of these tests fail
> with the same backtrace:
> 
> #0  variable_matches_case (address@hidden, c=0x0) at src/data/case.c:475
> #1  0xb6e35cda in case_data (address@hidden, v=0x1b15a80) at 
> src/data/case.c:267
> #2  0xb6f1be5e in update_n (aux1=0xbe9482d8, aux2=0x1b15a38, 
>     user_data=0x1b189d8, c=<optimized out>, weight=1)
>     at src/language/stats/means.c:917
> #3  0xb6f56ed0 in categoricals_update (cat=0x1b18270, address@hidden)
>     at src/math/categoricals.c:450
> #4  0xb6f1c438 in run_means (ds=0x1b052e8, input=0x1b18258, cmd=0xbe9482d8)
>     at src/language/stats/means.c:1021
> #5  cmd_means (lexer=<optimized out>, ds=0x1b052e8)
>     at src/language/stats/means.c:784
> #6  0xb6ef9198 in do_parse_command (state=CMD_STATE_DATA, ds=<optimized out>, 
>     lexer=0x1b05958) at src/language/command.c:233
> #7  cmd_parse_in_state (lexer=0x1b05958, ds=0x1b052e8, state=CMD_STATE_DATA)
>     at src/language/command.c:148
> #8  0x00012702 in main (argc=<optimized out>, argv=<optimized out>)
>     at src/ui/terminal/main.c:138
> 
> I'll take a further look.

Looking further, this looks like a compiler bug to me.  In the
update_n() function in src/language/stats/means.c, sometimes the
parameter 'c' changes from its original value to NULL between loop
iterations.  When I turn off compiler optimization, all of these tests
pass.

I don't see much value in spending much time on this.  I think that I
will upload a package that turns off compiler optimization on armhf.