Re: BUG: NTPL: waitpid() doesn't return?

From: bert hubert (ahu_at_ds9a.nl)
Date: 01/31/04

  • Next message: Matthias Urlichs: "Re: BUG: NTPL: waitpid() doesn't return?" 
    Date:	Sat, 31 Jan 2004 16:37:43 +0100
To: Matthias Urlichs <smurf@smurf.noris.de>

    On Sat, Jan 31, 2004 at 11:46:06AM +0100, Matthias Urlichs wrote:

    > This partial trace is from Debian's mini-dinstall, which is a
    > multithreaded Python script.
    >
    > What happens here is that it spawns a bunch of threads, then some of
    > these fork+execve external programs which they waitpid() for.
    >
    > Unfortunately, some of these waitpid() calls don't return even though
    > the waited-for process clearly has exited.

    It might be that in the NPTL world only one waitpid() can run per process
    simultaneously? Do you wait for all pids or for a specific one?

    Bert. 

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