Package: perl Version: 5.30.0-10 Severity: normal Dear Maintainer,
I've discovered several crash dumps made by perl in my /var/crash. However, I cannot debug them further since perl doesn't have debug symbols in Debian. I could try to reproduce it under valgrind, but without debug symbols this would be fruitless. The backtraces are like this: Core was generated by `/usr/bin/perl t/Pool01.t'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00516406 in Perl_op_free () (gdb) bt #0 0x00516406 in Perl_op_free () #1 0x005733bc in Perl_cv_undef_flags () #2 0x00573822 in Perl_cv_undef () #3 0x005df2fa in Perl_sv_clear () #4 0x005dfa9e in Perl_sv_free2 () #5 0x00611e79 in Perl_free_tmps () #6 0x00539c52 in perl_destruct () #7 0xb79bf5ea in ?? () from /usr/lib/i386-linux-gnu/perl/5.30/auto/threads/threads.so #8 0xb79c14ec in ?? () from /usr/lib/i386-linux-gnu/perl/5.30/auto/threads/threads.so #9 0x005d9b98 in Perl_pp_entersub () #10 0x005cfec9 in Perl_runops_standard () #11 0x0053542c in Perl_call_sv () #12 0x00538493 in Perl_call_list () #13 0x00539de2 in perl_destruct () #14 0x005123fe in main () Or this, similar: Core was generated by `/usr/bin/perl t/Pool02.t'. Program terminated with signal SIGABRT, Aborted. #0 0xb7f3cbad in __kernel_vsyscall () (gdb) bt #0 0xb7f3cbad in __kernel_vsyscall () #1 0xb7c278b2 in __libc_signal_restore_set (set=0xbfa36a0c) at ../sysdeps/unix/sysv/linux/internal-signals.h:84 #2 __GI_raise (sig=6) at ../sysdeps/unix/sysv/linux/raise.c:48 #3 0xb7c10309 in __GI_abort () at abort.c:79 #4 0xb7c6aa3c in __libc_message (action=<optimized out>, fmt=<optimized out>) at ../sysdeps/posix/libc_fatal.c:181 #5 0xb7c72b2d in malloc_printerr (str=str@entry=0xb7d7f7bc "munmap_chunk(): invalid pointer") at malloc.c:5339 #6 0xb7c72ddb in munmap_chunk (p=<optimized out>) at malloc.c:2830 #7 0x0051656e in Perl_Slab_Free () #8 0x00517287 in Perl_op_free () #9 0x0051742f in Perl_op_free () #10 0x005743bc in Perl_cv_undef_flags () #11 0x00574822 in Perl_cv_undef () #12 0x005e02fa in Perl_sv_clear () #13 0x005e0a9e in Perl_sv_free2 () #14 0x00612e79 in Perl_free_tmps () #15 0x0053ac52 in perl_destruct () #16 0xb799f5ea in ?? () from /usr/lib/i386-linux-gnu/perl/5.30/auto/threads/threads.so #17 0xb79a14ec in ?? () from /usr/lib/i386-linux-gnu/perl/5.30/auto/threads/threads.so #18 0x005dab98 in Perl_pp_entersub () #19 0x005d0ec9 in Perl_runops_standard () #20 0x0053642c in Perl_call_sv () #21 0x00539493 in Perl_call_list () #22 0x0053ade2 in perl_destruct () #23 0x005133fe in main () Problem is, I'm not 100% sure I can reproduce these crashes. Could you look at this and maybe advise me how to debug it? Regards Jiri Palecek -- System Information: Debian Release: bullseye/sid APT prefers testing APT policy: (990, 'testing'), (500, 'unstable-debug'), (500, 'testing-debug'), (500, 'unstable'), (1, 'experimental-debug'), (1, 'experimental') Architecture: i386 (i686) Foreign Architectures: amd64 Kernel: Linux 5.5.0-rc5-686-pae (SMP w/2 CPU cores) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=cs_CZ, LC_CTYPE=cs_CZ (charmap=ISO-8859-2), LANGUAGE= (charmap=ISO-8859-2) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages perl depends on: ii dpkg 1.20.1~2.gbp7298ec ii libperl5.30 5.30.0-10 ii perl-base 5.30.0-10 ii perl-modules-5.30 5.30.0-10 Versions of packages perl recommends: ii netbase 6.1 Versions of packages perl suggests: ii libb-debug-perl 1.26-1 pn liblocale-codes-perl <none> pn libtap-harness-archive-perl <none> ii libterm-readline-gnu-perl 1.36-2+b1 ii make 4.2.1-1.3 ii perl-doc 5.30.0-10 -- no debconf information