Bug#602668: libdevel-bt-perl: FTBFS on armel

Thu Aug 16 16:32:36 UTC 2012

On Thu, 05 Jul 2012 10:31:56 +0300, Niko Tyni wrote:

> However, given the past history and the tight coupling with gdb, I
> suspect 0.05-1 in wheezy is also affected. Tagging 'sid' for now (and
> I hope that's the right thing to do), but it would be good to verify if
> it currently builds in wheezy on armel.

Bad news: It doesn't. 
Good news: Or maybe it does?

I just tried 0.05-1 in the wheezy chroot on abel.d.o
(with File::Which and Capture::Tiny in ~/perl/lib):

(wheezy)gregoa at abel:~/src/libdevel-bt-perl-0.05$ PERL5LIB=~/perl/lib perl Makefile.PL                                 
Checking if your kit is complete...
Looks good
Writing Makefile for Devel::bt
Writing MYMETA.yml
(wheezy)gregoa at abel:~/src/libdevel-bt-perl-0.05$ PERL5LIB=~/perl/lib make                                             
cp lib/Devel/bt.pm blib/lib/Devel/bt.pm
/usr/bin/perl /usr/share/perl/5.14/ExtUtils/xsubpp  -typemap /usr/share/perl/5.14/ExtUtils/typemap  bt.xs > bt.xsc && mv bt.xsc bt.c
cc -c   -D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fstack-protector -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2 -g   -DVERSION=\"0.05\" -DXS_VERSION=\"0.05\" -fPIC "-I/usr/lib/perl/5.14/CORE"   bt.c
Running Mkbootstrap for Devel::bt ()
chmod 644 bt.bs
rm -f blib/arch/auto/Devel/bt/bt.so
cc  -shared -L/usr/local/lib -fstack-protector bt.o  -o blib/arch/auto/Devel/bt/bt.so   \
            \

chmod 755 blib/arch/auto/Devel/bt/bt.so
cp bt.bs blib/arch/auto/Devel/bt/bt.bs
chmod 644 blib/arch/auto/Devel/bt/bt.bs
Manifying blib/man3/Devel::bt.3pm
(wheezy)gregoa at abel:~/src/libdevel-bt-perl-0.05$ PERL5LIB=~/perl/lib make test                                        
PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(0, 'blib/lib', 'blib/arch')" t/*.t
t/basic.t ............... 1/? 
#   Failed test 'perl backtrace for SIGABRT'
#   at t/basic.t line 26.
#                   ''
#     doesn't match '(?^:\bperl_run\b)'
t/basic.t ............... 7/? # Looks like you failed 1 test of 7.
t/basic.t ............... Dubious, test returned 1 (wstat 256, 0x100)
Failed 1/7 subtests 
t/release-eol.t ......... skipped: these tests are for release candidate testing
t/release-no-tabs.t ..... skipped: these tests are for release candidate testing
t/release-pod-syntax.t .. skipped: these tests are for release candidate testing

Test Summary Report
-------------------
t/basic.t             (Wstat: 256 Tests: 7 Failed: 1)
  Failed test:  1
  Non-zero exit status: 1
Files=4, Tests=7, 15 wallclock secs ( 0.27 usr  0.02 sys +  2.20 cusr  0.46 csys =  2.95 CPU)
Result: FAIL
Failed 1/4 test programs. 1/7 subtests failed.
make: *** [test_dynamic] Error 255

Or does it? Without any changes:

(wheezy)gregoa at abel:~/src/libdevel-bt-perl-0.05$ PERL5LIB=~/perl/lib prove --blib --verbose t/basic.t                 
t/basic.t .. 
ok 1 - perl backtrace for SIGABRT
ok 2 - perl backtrace for SIGFPE
ok 3 - perl backtrace for SIGILL
ok 4 - perl backtrace for SIGQUIT
ok 5 - perl backtrace for SIGSEGV
ok 6 - perl backtrace for SIGBUS
ok 7 - perl backtrace for SIGTRAP
1..7
ok
All tests successful.
Files=1, Tests=7, 13 wallclock secs ( 0.27 usr  0.00 sys +  1.68 cusr  0.44 csys =  2.39 CPU)
Result: PASS

Let's try some more times:

Running the "prove ..." 10 times in a loop: --> 10 times PASS
Running "make test" 10 times in a loop: --> 10 times PASS

A last loop with 100 iterations of prove --blib t/basic.t:
failures at run 14 (SIGILL), 34 (SIGBUS), otherwise PASS.

So we have something like 121 PASSs and 3 FAILs (with 1 failure each
and in different (!) subtests). Great.

> source_version   gdb_version   perl_version   result   notes
> 0.05-1           7.2-1         5.10.1-14      FAIL     5 failures
> 0.05-1           7.2-1         5.10.1-18      FAIL     5 failures
> 0.05-1           7.3-1         5.12.4-4       OK
> 0.05-1           7.3-1+b1      5.14.2-3       OK
> 0.06-1           7.4really-1   5.14.2-7       FAIL     1 failure
> 0.06-1           7.4.1-1.1     5.14.2-9       FAIL     4 failures

  0.05-1           7.4.1-1.1     5.14.2-12      121:3    0/1 failures

/*
Just for fun I ran t/basic.t from 0.06-1 in a sid chroot on my adm64
machine 100 times: 100x PASS.
*/

> BTW, gdb_7.4.1-1.1 fixes "LinuxThreads signal handling on GNU/kFreeBSD",
> so it might be worth a try to reschedule this on kfreebsd-amd64 which
> has been failing consistently up to and including 7.4really-1 with
> related symptoms.

armel was enough for me for now :)

Cheers,
gregor

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