On Fri Apr 22 08:55:46 2016, jns...@gellyfish.co.uk wrote:
> The code:
>
> sub sleep_sort (*@list where .all >= 0) {
>
> my $channel = Channel.new;
>
> await @list.map: -> $delay {
> Promise.start({
> sleep $delay / 1000;
> $channel.send($delay);
> });
>
> };
>
> $channel.close;
>
> return $channel.list;
> }
>
> say sleep_sort(3,2,1,5,4) for (1 ... 10000);
>
>
> And gives rise to this back trace:
> #0 0x00007ffff73e8a98 in raise () from /lib64/libc.so.6
> No symbol table info available.
> #1 0x00007ffff73ea69a in abort () from /lib64/libc.so.6
> No symbol table info available.
> #2 0x00007ffff79ac867 in uv_mutex_destroy ()
> from /home/jonathan/.rakudobrew/moar-nom/install/lib/libmoar.so
> No symbol table info available.
> #3 0x00007ffff7930c9d in gc_free ()
> from /home/jonathan/.rakudobrew/moar-nom/install/lib/libmoar.so
> No symbol table info available.
Looks like the mutex missing unlock bug that I fixed in Rakudo commit
48c2af6d059. Also, I've run the code in question (all 10,000 iterations of it)
a bunch of times and not seen any failures. For good measure, I've also added
it as a stress test in S17-channel/stress.t.
/jnthn
