From: Florian Weimer <fw@deneb.enyo.de>
To: "Robert Święcki" <robert@swiecki.net>
Cc: libc-alpha@sourceware.org
Subject: Re: Caching of PID/TID after fork
Date: Fri, 07 Oct 2016 19:38:00 -0000 [thread overview]
Message-ID: <87y4202blm.fsf@mid.deneb.enyo.de> (raw)
In-Reply-To: <CAP145pj+yVz_7ZF8_dNqZ2NE22A_O5QyT195Gy0TgvKq1j3skw@mail.gmail.com> ("Robert \=\?utf-8\?B\?xZp3acSZY2tpIidz\?\= message of "Thu, 6 Oct 2016 18:13:41 +0200")
* Robert Święcki:
> Thefore I'd like to ask for one of the following solutions:
>
> 1. Don't cache PID/TID
>
> 2. Provide some kind of symbol, which would force for TID/PID to be
> reloaded in glibc.
I think we need a different design.
For example, when you clone a process, you really want that all
cryptographic random number generators are reinitialized. Making this
depend on getpid does not really work, so we need a more general
solution.
The other question I have is whether we talk about clone-as-fork
exclusively. Introducing a new thread into the process on which
non-free-standing code can run using clone is a different matter
altogether.
next prev parent reply other threads:[~2016-10-07 19:38 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-06 16:13 Robert Święcki
2016-10-06 16:34 ` Paul Pluzhnikov
2016-10-06 17:03 ` Robert Święcki
2016-10-06 18:32 ` Adhemerval Zanella
2016-10-06 17:26 ` Rich Felker
2016-10-06 17:42 ` Robert Święcki
2016-10-06 18:05 ` Rich Felker
2016-10-06 18:26 ` Robert Święcki
2016-10-06 21:35 ` Robert Święcki
2016-10-07 0:42 ` Zack Weinberg
2016-10-07 0:43 ` Zack Weinberg
2016-10-07 14:44 ` Robert Święcki
2016-10-07 18:20 ` Adhemerval Zanella
2016-10-07 18:30 ` Adhemerval Zanella
2016-10-07 19:38 ` Florian Weimer [this message]
2016-10-07 21:23 ` Robert Święcki
2016-10-09 10:05 ` Florian Weimer
2016-10-09 14:19 ` Robert Święcki
2016-10-10 18:03 ` Adhemerval Zanella
2016-11-04 15:14 ` Florian Weimer
2016-11-04 16:03 ` Adhemerval Zanella
2016-11-07 16:04 ` Florian Weimer
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