Re: [Boost-users] [EXTERNAL] bjam hangs on select (in develop branch)

Subject: Re: [Boost-users] [EXTERNAL] bjam hangs on select (in develop branch)
From: Alain Miniussi (alain.miniussi_at_[hidden])
Date: 2014-10-21 08:35:00

Sorry, the problem is still here:
  6817 alainm    20   0 S  0.0   0:01.74  4517 b2
  6870 alainm    20   0 T  0.0   0:00.00  6817 sh
  6871 alainm    20   0 T  0.0   0:00.00  6870 mpirun
  6876 alainm    20   0 Z  0.0   0:00.00  6871 mpiexec.hydra <defunct>

bottom of b2 strace:

lseek(4, 0, SEEK_CUR)                   = -1 ESPIPE (Illegal seek)
rt_sigprocmask(SIG_BLOCK, [CHLD], NULL, 8) = 0
select(5, [4], NULL, NULL, NULL

On 21/10/2014 08:29, Belcourt, Kenneth wrote:
> On Oct 20, 2014, at 4:11 PM, Belcourt, Kenneth <kbelco_at_[hidden]> wrote:
>
>> On Oct 20, 2014, at 4:02 PM, Alain Miniussi <alain.miniussi_at_oca.eu> wrote:
>>
>>> No, no -j option.
>> Interesting.  I’ve usually seen bjam miss the subprocess termination signal when -j is around 64 or more.  I’ve got an Intel MPI setup I can try to reproduce than Zombie child with.
> Just pushed a fix to develop:
>
> commit 252b5aa019
>
> Can you check if this fixes your issue?
>
> — Noel
>
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-- 
---
Alain