Thanks for the bug report.
On Tue, Mar 07, 2017 at 05:12:34PM -0800, J . David Lowe wrote:
>
> ```
> #!/usr/bin/env perl6
>
> use v6.c;
>
> sub MAIN {
> await Promise.anyof((^2).map: {
> start {
> loop {
> EVAL "True";
> }
> }
> });
> }
> ```
> 2. *** glibc detected *** ... double free or corruption (fasttop) ...
ASAN says:
==8139==ERROR: AddressSanitizer: attempting double-free on 0x6020008ef610 in
thread T1:
#0 0x7f93cc31d8e6 in __interceptor_realloc
../../.././libsanitizer/asan/asan_malloc_linux.cc:93
#1 0x7f93ca155fad in MVM_realloc src/core/alloc.h:20
#2 0x7f93ca15dd71 in MVM_sc_set_object src/6model/sc.c:230
#3 0x7f93c9ef1a16 in MVM_interp_run src/core/interp.c:2948
#4 0x7f93c9f831bf in start_thread src/core/threads.c:80
#5 0x7f93ca391e48 in uv__thread_start 3rdparty/libuv/src/unix/thread.c:49
#6 0x7f93c8bdfaa0 in start_thread (/lib64/libpthread.so.0+0x7aa0)
#7 0x7f93c90e5aac in __clone (/lib64/libc.so.6+0xe8aac)
0x6020008ef610 is located 0 bytes inside of 16-byte region
[0x6020008ef610,0x6020008ef620)
freed by thread T2 here:
#0 0x7f93cc31d8e6 in __interceptor_realloc
../../.././libsanitizer/asan/asan_malloc_linux.cc:93
#1 0x7f93ca155fad in MVM_realloc src/core/alloc.h:20
#2 0x7f93ca15dd71 in MVM_sc_set_object src/6model/sc.c:230
#3 0x7f93c9ef1a16 in MVM_interp_run src/core/interp.c:2948
#4 0x7f93c9f831bf in start_thread src/core/threads.c:80
#5 0x7f93ca391e48 in uv__thread_start 3rdparty/libuv/src/unix/thread.c:49
#6 0x7f93c8bdfaa0 in start_thread (/lib64/libpthread.so.0+0x7aa0)
previously allocated by thread T1 here:
#0 0x7f93cc31d8e6 in __interceptor_realloc
../../.././libsanitizer/asan/asan_malloc_linux.cc:93
#1 0x7f93ca155fad in MVM_realloc src/core/alloc.h:20
#2 0x7f93ca15dd71 in MVM_sc_set_object src/6model/sc.c:230
#3 0x7f93c9ef1a16 in MVM_interp_run src/core/interp.c:2948
#4 0x7f93c9f831bf in start_thread src/core/threads.c:80
#5 0x7f93ca391e48 in uv__thread_start 3rdparty/libuv/src/unix/thread.c:49
#6 0x7f93c8bdfaa0 in start_thread (/lib64/libpthread.so.0+0x7aa0)
Thread T1 created by T0 here:
#0 0x7f93cc2ec6ea in __interceptor_pthread_create
../../.././libsanitizer/asan/asan_interceptors.cc:183
#1 0x7f93ca391f7e in uv_thread_create 3rdparty/libuv/src/unix/thread.c:66
#2 0x7f93c9f8374f in MVM_thread_run src/core/threads.c:132
#3 0x7f93c9f12399 in MVM_interp_run src/core/interp.c:4003
#4 0x7f93ca2e71c9 in MVM_vm_run_file src/moar.c:310
#5 0x401cdb in main src/main.c:201
#6 0x7f93c901bd1c in __libc_start_main (/lib64/libc.so.6+0x1ed1c)
Thread T2 created by T0 here:
#0 0x7f93cc2ec6ea in __interceptor_pthread_create
../../.././libsanitizer/asan/asan_interceptors.cc:183
#1 0x7f93ca391f7e in uv_thread_create 3rdparty/libuv/src/unix/thread.c:66
#2 0x7f93c9f8374f in MVM_thread_run src/core/threads.c:132
#3 0x7f93c9f12399 in MVM_interp_run src/core/interp.c:4003
#4 0x7f93ca2e71c9 in MVM_vm_run_file src/moar.c:310
#5 0x401cdb in main src/main.c:201
#6 0x7f93c901bd1c in __libc_start_main (/lib64/libc.so.6+0x1ed1c)
SUMMARY: AddressSanitizer: double-free
../../.././libsanitizer/asan/asan_malloc_linux.cc:93 __interceptor_realloc
==8139==ABORTING
Nicholas Clark
