Date: Wed, 6 Mar 2013 13:40:04 -0500
From: Jeff Layton <jlayton@redhat.com>
To: Oleg Nesterov <oleg@redhat.com>
Cc: Tejun Heo <tj@kernel.org>, "Myklebust, Trond" <Trond.Myklebust@netapp.com>,
        Mandeep Singh Baines <msb@chromium.org>,
        Ming Lei <ming.lei@canonical.com>,
        "J. Bruce Fields" <bfields@fieldses.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        "linux-nfs@vger.kernel.org" <linux-nfs@vger.kernel.org>,
        "Rafael J. Wysocki" <rjw@sisk.pl>,
        Andrew Morton <akpm@linux-foundation.org>,
        Ingo Molnar <mingo@redhat.com>, Al Viro <viro@ZenIV.linux.org.uk>
Subject: Re: LOCKDEP: 3.9-rc1: mount.nfs/4272 still has locks held!
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On Wed, 6 Mar 2013 19:17:35 +0100
Oleg Nesterov <oleg@redhat.com> wrote:

> On 03/05, Jeff Layton wrote:
> >
> > Anyone up for working out how to handle a freeze event on a process
> > that already has a pending signal, while it's being ptraced?
> 
> Could you explain the problem?
> 

Not very well. I was just saying that the signal/ptrace stuff is very
complicated already. Now we're looking at mixing in the freezer too,
which further increases the complexity.

Though when I said that, it was before Tejun mentioned hooking this up
to ptrace. I'll confess that I don't fully understand what he's
proposing either though...

-- 
Jeff Layton <jlayton@redhat.com>
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