HTTP/1.1 -1 Read error in cache disk data: SuccessContent-Type: text/csv; charset="utf-8" Last-Modified: Sat, 22 Jan 2022 07:46:39 GMT Content-length: 2908 Connection: Close Proxy-Connection: Close X-Cache: HIT from web1.osuosl.org Server: ProxyTrack 0.5 (HTTrack 3.49.2) id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc,lang,patch,platform 1613,Random segfault in rakudo spectests,moritz,,"For maybe two weeks now rakudo spectests segfault randomly, triggered without any changes in Rakudo's C code. For some specific combinations of Rakudo and Parrot revisions some of these segfaults are reproducible. Here's one from t/spec/S06-signature/unspecified.rakudo (generate that file by running `make t/spec/S06-signature/unspecified.t`): {{{ (gdb) run t/spec/S06-signature/unspecified.rakudo Starting program: /nocrypt-home/moritz/source/rakudo/perl6 t/spec/S06-signature/unspecified.rakudo [Thread debugging using libthread_db enabled] warning: Lowest section in /usr/lib/libicudata.so.36 is .hash at 0000000000000120 [New Thread 0x7fb9a473a6f0 (LWP 12057)] ok 1 - # SKIP siglist ok 2 - can call sub with no signature specified ok 3 - sub with no signature dies when given a named argument ok 4 - sub with no signature dies when given positional argument ok 5 - # SKIP siglist ok 6 - can call sub with positional param used ok 7 - sub using positional param called with no params ok 8 - sub using positional param called with named param ok 9 - # SKIP siglist ok 10 - can call sub with named param used ok 11 - named param sub is callable with no params ok 12 - named param sub dies with positional param ok 13 - # SKIP siglist ok 14 - can call sub with both named and positional params used Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fb9a473a6f0 (LWP 12057)] Parrot_str_copy (interp=, s=0x4dd7328) at src/string/api.c:366 366 *buffer_flags |= Buffer_shared_FLAG; (gdb) bt #0 Parrot_str_copy (interp=, s=0x4dd7328) at src/string/api.c:366 #1 0x00007fb9a4186cbb in Parrot_str_concat (interp=0x2862010, a=0x4dd7328, b=0x4dd72e0) at src/string/api.c:407 #2 0x00007fb9a41a455f in Parrot_concat_s_s_s (cur_opcode=0x7fb9a185cc68, interp=0x4dd72e0) at src/ops/string.ops:104 #3 0x00007fb9a41f1b3d in runops_fast_core (interp=0x2862010, runcore_unused=, pc=0x4dd72e0) at src/runcore/cores.c:514 #4 0x00007fb9a41f155d in runops_int (interp=0x2862010, offset=273809) at src/runcore/main.c:237 #5 0x00007fb9a41ca251 in runops (interp=0x2862010, offs=) at src/call/ops.c:113 #6 0x00007fb9a41c5fc0 in Parrot_pcc_invoke_from_sig_object (interp=0x2862010, sub_obj=, call_object=) at src/call/pcc.c:359 #7 0x00007fb9a41c60fb in Parrot_pcc_invoke_sub_from_c_args (interp=0x2862010, sub_obj=0x2e45220, sig=) at src/call/pcc.c:87 #8 0x0000000000400e23 in main () (gdb) }}}",bug,closed,normal,,none,2.3.0,high,fixed,,,perl6,, href="/parrot/search">Search