valgrind.log

perl6-valgrind-m -e 'run("curl", :enc<utf8-c8>, :out, "-s", "https://www.google.com").out.slurp.chars.say'
================================================================================================
This is Rakudo Perl 6 running in valgrind, a tool for debugging and profiling programs.
Running a program in valgrind usually takes *a lot* more time than running it directly,
so please be patient.
Valgrind options can be added with MVM_VALGRIND_OPTS environment variable.

This Rakudo version is 2018.06.349.g.81.a.5.e.4.ba.8 built on MoarVM version 2018.06.385.g.3.e.679.da.29,
running on arch (4.17.11.arch.1) / linux (4.17.11.arch.1)
------------------------------------------------------------------------------------------------
==22097== Memcheck, a memory error detector
==22097== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==22097== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==22097== Command: /home/dan/Source/perl6/install/bin/moar --execname=../install/bin/perl6-valgrind-m --libpath=/home/dan/Source/perl6/install/share/nqp/lib --libpath=/home/dan/Source/perl6/install/share/perl6/lib --libpath=/home/dan/Source/perl6/install/share/perl6/runtime /home/dan/Source/perl6/install/share/perl6/runtime/perl6.moarvm -e run("curl",\ :enc\<utf8-c8\>,\ :out,\ "-s",\ "https://www.google.com").out.slurp.chars.say
==22097== 

valgrind: the 'impossible' happened:
   Unsupported arch_prctl option

host stacktrace:
==22097==    at 0x580441BA: show_sched_status_wrk (m_libcassert.c:355)
==22097==    by 0x580442D4: report_and_quit (m_libcassert.c:426)
==22097==    by 0x58044517: panic (m_libcassert.c:502)
==22097==    by 0x58044517: vgPlain_core_panic_at (m_libcassert.c:507)
==22097==    by 0x5804454A: vgPlain_core_panic (m_libcassert.c:512)
==22097==    by 0x580DAE22: vgSysWrap_amd64_linux_sys_arch_prctl_before (syswrap-amd64-linux.c:286)
==22097==    by 0x580A0C23: vgPlain_client_syscall (syswrap-main.c:1857)
==22097==    by 0x5809D48A: handle_syscall (scheduler.c:1126)
==22097==    by 0x5809EBB6: vgPlain_scheduler (scheduler.c:1443)
==22097==    by 0x580AED50: thread_wrapper (syswrap-linux.c:103)
==22097==    by 0x580AED50: run_a_thread_NORETURN (syswrap-linux.c:156)

sched status:
  running_tid=1

Thread 1: status = VgTs_Runnable (lwpid 22097)
==22097==    at 0x401A1C5: ??? (in /usr/lib/ld-2.28.so)
==22097==    by 0xBFEBFBFE: ???


Note: see also the FAQ in the source distribution.
It contains workarounds to several common problems.
In particular, if Valgrind aborted or crashed after
identifying problems in your program, there's a good chance
that fixing those problems will prevent Valgrind aborting or
crashing, especially if it happened in m_mallocfree.c.

If that doesn't help, please report this bug to: www.valgrind.org

In the bug report, send all the above text, the valgrind
version, and what OS and version you are using.  Thanks.