Re: [PATCH] cygwin+bash: bash reorders script output bug identified/fixed

[Nils <internationils at gmx dot net>]

Manfred Spraul wrote:
...
> Summary:
> * It's a bash bug, not a cygwin bug.
> * defining RECYCLES_PIDS in execute_cmd.c solves the problem.
> * RECYCLES_PID is intended for LynxOs, which recycles pids
>       quickly according to a comment in execute_cmd.c
> * All OS are potentially affected, bash basically assumes
>       that 2 pid values are never identical.
>
> It seems that there are 2 possible solutions:
> A) enable RECYCLES_PID in bash.
>       * I'd propose that, minimal patch attached.
> B) work around the bash bug in cygwin.
>       fork.cc already contains a special function that prevents 2
>           consecutive fork() calls from reusing the same pid:
>           slow_pid_reuse().
This may have been what I was running into as well.  See 
http://cygwin.com/ml/cygwin/2002-07/msg01894.html

When doing the same compiles with in a window with tcsh running (even if 
bash gets invoked later on) the process numbers seem to increase much 
more slowly.  If you do a large compile using bash as your shell, do you 
see process numbers creeping upward (in task manager) gradually as well?

Thanks,
Nils.


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