Control: reassign -1 libtickit-perl 0.73-1 On Wed, Aug 07, 2024 at 04:04:59PM +0300, Niko Tyni wrote: > Package: libtickit-widget-scrollbox-perl > Version: 0.12-1 > Severity: important > Tags: trixie sid > User: debian-p...@lists.debian.org > Usertags: perl-5.40-transition > > This package fails to build from source with Perl 5.40 (currently in > experimental.)
> malloc_consolidate(): unaligned fastbin chunk detected > t/03input-mouse.t (Wstat: 6 (Signal: ABRT) Tests: 14 Failed: 0) > Non-zero wait status: 6 > This seems to be almost deterministic on perl.debian.net. The build > succeeded once with perl_5.40.0~rc1-1 but has failed consistently 12 times > now with perl_5.40.0-1 while building fine on sid / Perl 5.38 every time. This is memory corruption in libtickit-perl, not specific to Perl 5.40. The current 5.40 build is apparently just more sensitive to it. There's past reports of similar issues in #1013526 and #1006658. I don't think they got ever fixed properly, they just stopped crashing by chance. It shows well on current sid / Perl 5.38 with $ valgrind perl -MTickit -e '$w=Tickit->new()->rootwin; $w->make_sub(0,0,1,1); $w->expose' and even better with debugperl and a DEB_BUILD_OPTIONS=noopt Tickit build, as seen below. Looks like something goes wrong with DESTROY methods and the tickit_window_unref() calls, but I'm not at the bottom of it yet. ==3459274== Memcheck, a memory error detector ==3459274== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al. ==3459274== Using Valgrind-3.20.0 and LibVEX; rerun with -h for copyright info ==3459274== Command: debugperl -Iblib/lib -Iblib/arch -MTickit -e $w=Tickit-\>new()-\>rootwin;\ $w-\>make_sub(0,0,1,1);\ $w-\>expose ==3459274== ==3459274== Invalid write of size 8 ==3459274== at 0x53DD1CF: tickit_window_destroy (in /usr/lib/x86_64-linux-gnu/libtickit.so.3.0.0) ==3459274== by 0x53B11D9: XS_Tickit__Window_DESTROY (Tickit.xs:3512) ==3459274== by 0x2BD616: Perl_pp_entersub (pp_hot.c:5555) ==3459274== by 0x26C491: Perl_runops_debug (dump.c:2864) ==3459274== by 0x17CA7A: Perl_call_sv (perl.c:3150) ==3459274== by 0x2C721A: S_curse (sv.c:7144) ==3459274== by 0x2C7DBC: Perl_sv_clear (sv.c:6685) ==3459274== by 0x2C8F37: Perl_sv_free2 (sv.c:7244) ==3459274== by 0x2C9D6D: S_visit (sv.c:394) ==3459274== by 0x2C9D6D: Perl_sv_clean_objs (sv.c:545) ==3459274== by 0x181863: perl_destruct (perl.c:928) ==3459274== by 0x14E571: main (perlmain.c:139) ==3459274== Address 0x5715f10 is 0 bytes inside a block of size 96 free'd ==3459274== at 0x48451EF: free (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so) ==3459274== by 0x53DD1CE: tickit_window_destroy (in /usr/lib/x86_64-linux-gnu/libtickit.so.3.0.0) ==3459274== by 0x53B11D9: XS_Tickit__Window_DESTROY (Tickit.xs:3512) ==3459274== by 0x2BD616: Perl_pp_entersub (pp_hot.c:5555) ==3459274== by 0x26C491: Perl_runops_debug (dump.c:2864) ==3459274== by 0x17CA7A: Perl_call_sv (perl.c:3150) ==3459274== by 0x2C721A: S_curse (sv.c:7144) ==3459274== by 0x2C7DBC: Perl_sv_clear (sv.c:6685) ==3459274== by 0x2C8F37: Perl_sv_free2 (sv.c:7244) ==3459274== by 0x2C9D6D: S_visit (sv.c:394) ==3459274== by 0x2C9D6D: Perl_sv_clean_objs (sv.c:545) ==3459274== by 0x181863: perl_destruct (perl.c:928) ==3459274== by 0x14E571: main (perlmain.c:139) ==3459274== Block was alloc'd at ==3459274== at 0x4842808: malloc (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so) ==3459274== by 0x53DD069: tickit_window_new (in /usr/lib/x86_64-linux-gnu/libtickit.so.3.0.0) ==3459274== by 0x53B0F00: XS_Tickit__Window__make_sub (Tickit.xs:3499) ==3459274== by 0x2BD616: Perl_pp_entersub (pp_hot.c:5555) ==3459274== by 0x26C491: Perl_runops_debug (dump.c:2864) ==3459274== by 0x188C4F: S_run_body (perl.c:2812) ==3459274== by 0x188C4F: perl_run (perl.c:2727) ==3459274== by 0x14E4F8: main (perlmain.c:127) ==3459274== ==3459274== ==3459274== HEAP SUMMARY: ==3459274== in use at exit: 1,861,759 bytes in 2,530 blocks ==3459274== total heap usage: 38,628 allocs, 36,098 frees, 8,866,689 bytes allocated ==3459274== ==3459274== LEAK SUMMARY: ==3459274== definitely lost: 169,752 bytes in 313 blocks ==3459274== indirectly lost: 1,678,485 bytes in 2,188 blocks ==3459274== possibly lost: 0 bytes in 0 blocks ==3459274== still reachable: 13,522 bytes in 29 blocks ==3459274== suppressed: 0 bytes in 0 blocks ==3459274== Rerun with --leak-check=full to see details of leaked memory ==3459274== ==3459274== For lists of detected and suppressed errors, rerun with: -s ==3459274== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0) -- Niko Tyni nt...@debian.org
