philippe_44 wrote:
> I re-read the pipeline code and I can only think that BSD screws up
> either with the reader/writer/source socket by not releasing buffer when
> using localhost sockets or in that code
> >
Code:
--------------------
> >
> if ($writelen) {
>
> main::DEBUGLOG && $log->debug("Wrote $writelen bytes to
pipeline writer");
>
> if ($writelen != $pendingSize) {
> ${*$self}{'pipeline_pending_bytes'} =
substr($pendingBytes, $writelen);
> ${*$self}{'pipeline_pending_size'} =
$pendingSize - $writelen;
> }
> else {
> ${*$self}{'pipeline_pending_bytes'} = '';
> ${*$self}{'pipeline_pending_size'} = 0;
> }
> }
> else {
>
> ${*$self}{'pipeline_pending_bytes'} = $pendingBytes;
> ${*$self}{'pipeline_pending_size'} = $pendingSize;
>
> if ($! != EWOULDBLOCK) {
> return undef; # reflect error to caller
> }
>
> last;
> }
>
--------------------
> >
> The 'pipeline_pending_bytes' are not released either when being shrunk
> or re-assigned to the substr() of $pendingBytes. In any case,
> unfortunately, it looks like an obscure BSD+Perl issue that will be
> quasi-impossible to track w/o a full system and my FreeBSD VM is a
> real pain to use on VirtualBox as some of the drivers does not work
> well.
>
> [edit]: Have you looked more broadly at BSD and Perl and Memory Leak?
> For example, https://github.com/Perl/perl5/issues/17105 talks about an
> issue with syslog. I'm not a real FreeBSD user, I just do quick
> verification when some of my apps are compiled for it.
Big News.
Starting LMS with LC_ALL=C instead of LC_ALL=en_US=UTF-8 solves the
bug.
My first reaction was "How the f a locale setting can cause a memory
leak of 12GB in an OS used by servers (Netflix included as an
example)??" Because this seems to be a bug of the OS and not of Perl
itself.
https://audiodigitale.eu
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