LKML Archive on
help / color / mirror / Atom feed
From: Oleg Nesterov <>
To: "Eric W. Biederman" <>
Cc: Cedric Le Goater <>,
	Daniel Hokka Zakrisson <>,,,,,
	Linux Containers <>
Subject: Re: NFS causing oops when freeing namespace
Date: Thu, 18 Jan 2007 01:55:24 +0300	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On 01/17, Eric W. Biederman wrote:
> Cedric Le Goater <> writes:
> >
> > your first analysis was correct : exit_task_namespaces() should be moved 
> > above exit_notify(tsk). It will require some extra fixes for nsproxy 
> > though.
> I think the only issue is the child_reaper and currently we only have one of
> those.  When we really do the pid namespace we are going to have to revisit
> this.  My gut feel says that we won't be able to exit our pid namespace until
> the process is waited on.  So we may need to break up exit_task_namespace into
> individual components.

I agree, but please note that the child_reaper is not the only issue. Think
about sub-thread which auto-reaps itself. I'd suggest to add the comment in
do_exit() after exit_notify() to remind that the task is really dead now, it
has no ->signal, it can't be seen in /proc/, we can't send a signal to it, etc.


  parent reply	other threads:[~2007-01-17 22:56 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-17 10:28 Daniel Hokka Zakrisson
2007-01-17 12:44 ` Eric W. Biederman
2007-01-17 13:13   ` Daniel Hokka Zakrisson
2007-01-17 18:58     ` Oleg Nesterov
2007-01-17 19:20       ` Cedric Le Goater
2007-01-17 19:46         ` Oleg Nesterov
2007-01-17 20:31           ` Cedric Le Goater
2007-01-17 22:30             ` Eric W. Biederman
2007-01-17 22:46               ` Trond Myklebust
2007-01-17 22:55               ` Oleg Nesterov [this message]
2007-01-18  4:46                 ` Eric W. Biederman

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \ \ \ \ \ \ \
    --subject='Re: NFS causing oops when freeing namespace' \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).