Messages in this thread | | | Subject | Re: [PATCH] Introduce ActivePid: in /proc/self/status (v2, was Vpid:) | From | Greg Kurz <> | Date | Thu, 16 Jun 2011 13:19:18 +0200 |
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On Wed, 2011-06-15 at 21:03 +0200, Oleg Nesterov wrote: > Forgot to ask, > > On 06/15, Greg Kurz wrote: > > > > The need arises in the LXC community when one wants to send a signal from > > the host (aka. init_pid_ns context) to a container process for which one > > only knows the pid inside the container. > > I am just curious, why do you need this? >
Because some LXC users run partially isolated containers (AKA. application containers started with the lxc-execute command). Some of the user code runs outside the container and some inside. Since lxc-execute uses CLONE_NEWPID, it's difficult for the external code to relate a pid generated inside the container with a task. There are regular requests on lxc-users@ about this.
-- Gregory Kurz gkurz@fr.ibm.com Software Engineer @ IBM/Meiosys http://www.ibm.com Tel +33 (0)534 638 479 Fax +33 (0)561 400 420
"Anarchy is about taking complete responsibility for yourself." Alan Moore.
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