Mail Archives: cygwin/2004/09/14/09:09:58
On Tue, Sep 14, 2004 at 02:45:11AM -0400, Bogdan Vacaliuc wrote:
>Chris, Pierre,
>> I was thinking the same thing but AFAIK, ash doesn't have the
>> pid recycling problem.
>
>In my failure cases, configure is run under bash.
>
>I have also captured (finally?) an strace under the ~current cygwin
>(attached). The details are largely the same as Peter's last
>attachment, to which Igor remarked "FWIW, expr.exe does seem to exit
>with the right exit code, but is later zombified, which doesn't sound
>quite right."
>
>Actually, its ok for it to be zombified, because the parent didn't
>happen to be waiting for the child at the time that the child exited.
>
>>>>Pierre's observation that error text is output by the parent shell
>>>>*before* the expr command even executes was an inspiration.
>
>So it seems like the parent shell decides its going to exit after
>forking but before waiting on the expr process.
That is consistent with the recycled pid problem. Are you seeing
duplicated pids?
>> Wasn't there a registry value that controlled how pids were
>> allocated? I can't find anything appropriate in google.
>
>I looked for something about this in M$ knowledge base. I didn't find that, but I found this:
>
>"BUG: Registry access from multiple threads might fail" (WinNT, Win2K)
>http://support.microsoft.com/default.aspx?scid=kb;en-us;176906
I don't really see how that applies.
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