Bug #105130 for Forks-Super: Forks-Super-0.74 kills my Debian/jessie VM

Tue Jun 09 14:11:29 2015 SREZIC [...] cpan.org - Ticket created

Subject:

Forks-Super-0.64 kills my Debian/jessie VM

See subject. While trying to install the distribution it seems that a lot of resources are consumed, killing some system processes like sshd or the VirtualBox management process. The last thing I see in the terminal is: Gathering information on current system linux.5.020001 and creating Forks::Super::SysInfo package. Creating Forks/Super/SysInfo.pm file SysInfo.pm.PL: creating system-limits file. 1: sleep and alarm are compatible on this system There are 1 cpus on this system. Can open 65532 file handles simultaneously Default socket capacity is about 212992 bytes Default pipe capacity is about 65536 bytes advisory filelocking available for ipc synchronization

Tue Jun 09 14:46:28 2015 SREZIC [...] cpan.org - Correspondence added

On 2015-06-09 14:11:29, SREZIC wrote: Show quoted text

> See subject. While trying to install the distribution it seems that a > lot of resources are consumed, killing some system processes like sshd > or the VirtualBox management process. > > The last thing I see in the terminal is: > > Gathering information on current system linux.5.020001 > and creating Forks::Super::SysInfo package. > Creating Forks/Super/SysInfo.pm file > SysInfo.pm.PL: creating system-limits file. > 1: sleep and alarm are compatible on this system > There are 1 cpus on this system. > Can open 65532 file handles simultaneously > Default socket capacity is about 212992 bytes > Default pipe capacity is about 65536 bytes > advisory filelocking available for ipc synchronization

And /var/log/messages reveals that oom-killer was invoked...

Tue Jun 09 16:07:20 2015 MOB [...] cpan.org - Correspondence added

Subject:

Forks-Super-0.74 kills my Debian/jessie VM

From the Forks-Super build directory, what is the output of grep maxfork t/out/limits* ?

Tue Jun 09 16:07:21 2015 The RT System itself - Status changed from 'new' to 'open'

Tue Jun 09 16:07:21 2015 MOB [...] cpan.org - Subject changed from 'Forks-Super-0.64 kills my Debian/jessie VM' to 'Forks-Super-0.74 kills my Debian/jessie VM'

Tue Jun 09 16:13:58 2015 SREZIC [...] cpan.org - Correspondence added

On 2015-06-09 16:07:20, MOB wrote: Show quoted text

> From the Forks-Super build directory, what is the output of > > grep maxfork t/out/limits* > > ?

maxfork:299

Tue Jun 09 16:17:06 2015 SREZIC [...] cpan.org - Correspondence added

On 2015-06-09 16:13:58, SREZIC wrote: Show quoted text

> On 2015-06-09 16:07:20, MOB wrote:

> > From the Forks-Super build directory, what is the output of > > > > grep maxfork t/out/limits* > > > > ?

> > maxfork:299

This VM has 2GB RAM and 0.7GB Swap. On another VM, with Debian/wheezy running, the maxfork value is higher: 1999. I have no problems here, but that VM has also much more RAM (16GB).

Thu Jun 25 01:21:42 2015 SREZIC [...] cpan.org - Broken in 0.75 added

Fri Jun 26 01:19:32 2015 SREZIC [...] cpan.org - Broken in 0.76 added

Mon Jul 13 15:57:55 2015 MOB [...] cpan.org - Correspondence added

Made some efforts in 0.75 and 0.76 to have system-limits.PL be able to crash without taking down the other build processes. I'll see what I can do about making a crippled VM to test it.

Mon Jul 13 16:28:31 2015 SREZIC [...] cpan.org - Correspondence added

On 2015-07-13 15:57:55, MOB wrote: Show quoted text

> Made some efforts in 0.75 and 0.76 to have system-limits.PL be able to > crash without taking down the other build processes. I'll see what I > can do about making a crippled VM to test it.

I don't see any changes with 0.76. I tried Forks-Super on another VM running debian/wheezy and the same memory+swap settings and had no problem; system-limits was creating 2000 processes. So it looks like something changed in debian/jessie.

Fri Nov 25 10:03:25 2016 MOB [...] cpan.org - Correspondence added

This problem should have improved since 0.75. I'll keep this open and see if any other complaints come in.

Fri Nov 25 10:03:26 2016 MOB [...] cpan.org - Status changed from 'open' to 'stalled'