* Alternative to vfork(2) with overcommit off
@ 2012-07-30 16:59 Shea Levy
2012-07-30 17:16 ` Steven J. Magnani
0 siblings, 1 reply; 2+ messages in thread
From: Shea Levy @ 2012-07-30 16:59 UTC (permalink / raw)
To: linux-kernel@vger.kernel.org
Hello,
The vfork(2) manpage states "It is rather unfortunate that Linux revived this specter from the past", but on systems with overcommit turned off fork(2) can be needlessly prohibitive when the goal is to execve(2) right away. Is there a third alternative for the fork/execve case? If not, should the manpage really be so dismissive of vfork?
Cheers,
Shea Levy
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Alternative to vfork(2) with overcommit off
2012-07-30 16:59 Alternative to vfork(2) with overcommit off Shea Levy
@ 2012-07-30 17:16 ` Steven J. Magnani
0 siblings, 0 replies; 2+ messages in thread
From: Steven J. Magnani @ 2012-07-30 17:16 UTC (permalink / raw)
To: Shea Levy; +Cc: linux-kernel@vger.kernel.org
On Mon, 2012-07-30 at 12:59 -0400, Shea Levy wrote:
> Hello,
>
> The vfork(2) manpage states "It is rather unfortunate that Linux revived this specter from the past", but on systems with overcommit turned off fork(2) can be needlessly prohibitive when the goal is to execve(2) right away. Is there a third alternative for the fork/execve case? If not, should the manpage really be so dismissive of vfork?
On noMMU (embedded) systems, fork() is not implementable and vfork() is
the only option.
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