Bug #79685 for IO-Socket-SSL: thread-safey issue (MS Windows)

Mon Sep 17 04:12:05 2012 kmx [...] cpan.org - Ticket created

Subject:

thread-safey issue (MS Windows)

Hi,

I have experienced a crash on strawberry perl 5.14.2 + 5.16.1 and active perl 5.14.2 with the following oneliner:

perl -Mthreads -e "threads->new(sub {require IO::Socket::SSL})->join for(1..500)"

Using:
- IO::Socket::SSL 1.76
- Net::SSLeay 1.48

Workaround to avoid the crash is to load IO::Socket::SSL in the main thread:

perl -Mthreads -e "use IO::Socket::SSL; threads->new(sub {require IO::Socket::SSL})->join for(1..500)"

--
kmx

Tue Mar 05 02:16:17 2013 Steffen_Ullrich [...] genua.de - Correspondence added

Hi, I guess this might be because Net::SSLeay gets loaded and initialized multiple times and in parallel. IO::Socket::SSL itself is perl-only, so it should at least not cause a crash. Did you try it with Net::SSLeay directly instead? But, I think it is a bad idea anyway to require (and initialize) the package in each thread again and even if it does not crash it costs lots of performance. So next release of IO::Socket::SSL will have an appropriate entry in the BUGS section. Steffen On Mon Sep 17 04:12:05 2012, KMX wrote: Show quoted text

> Hi, > > I have experienced a crash on strawberry perl 5.14.2 + 5.16.1 and > active perl > 5.14.2 with the following oneliner: > > perl -Mthreads -e "threads->new(sub {require IO::Socket::SSL})->join > for(1..500)" > > Using: > - IO::Socket::SSL 1.76 > - Net::SSLeay 1.48 > > Workaround to avoid the crash is to load IO::Socket::SSL in the main > thread: > > perl -Mthreads -e "use IO::Socket::SSL; threads->new(sub {require > IO::Socket::SSL})->join for(1..500)" > > -- > kmx

Tue Mar 05 02:16:18 2013 The RT System itself - Status changed from 'new' to 'open'

Tue Mar 05 02:16:19 2013 Steffen_Ullrich [...] genua.de - Status changed from 'open' to 'resolved'