From: Glauber Costa <glommer@parallels.com>
To: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Tejun Heo <tj@kernel.org>, <linux-kernel@vger.kernel.org>,
Andrew Vagin <avagin@parallels.com>,
Pavel Emelyanov <xemul@parallels.com>,
James Bottomley <jbottomley@parallels.com>,
"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@elte.hu>,
Dave Hansen <dave@linux.vnet.ibm.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Daniel Lezcano <dlezcano@fr.ibm.com>,
Alexey Dobriyan <adobriyan@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Oleg Nesterov <oleg@redhat.com>
Subject: Re: [patch 5/5] elf: Add support for loading ET_CKPT files
Date: Fri, 21 Oct 2011 15:21:12 +0400 [thread overview]
Message-ID: <4EA155A8.8010802@parallels.com> (raw)
In-Reply-To: <20111021112031.GO14464@moon>
On 10/21/2011 03:20 PM, Cyrill Gorcunov wrote:
> On Fri, Oct 21, 2011 at 03:06:12PM +0400, Glauber Costa wrote:
> ...
>> exec() is a fundamental interface to the kernel, and the change
>> proposed here is too disruptive. Not only that, it is rather
>> unannounced: since not always one knows kind of fmt file is being
>> exec'd, it gets hard to infer which behavior to expect.
>>
>
> This missed snipped in changelog indeed my very fault, sorry for that.
>
>> I am wondering, though: if exec is a problem, but the binary handler
>> is not, maybe we can exec a process using this handler, and then
>> have the handler itself to create the thread hierarchy. This way we
>> avoid changing exec() behavior at all, yet achieving the same
>> results.
>>
>> What do you think?
>>
>>
>
> Glauber, could you please elaborate, you mean to call for forks inside
> elf-chkpt handler, right? Or you mean something else?
not fork(), clone().
next prev parent reply other threads:[~2011-10-21 11:21 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-14 11:04 [patch 0/5] [RFC] Checkpoint/restore and Elf extension Cyrill Gorcunov
2011-10-14 11:04 ` [patch 1/5] proc: Introduce the Children: line in /proc/<pid>/status Cyrill Gorcunov
2011-10-14 16:36 ` Tejun Heo
2011-10-14 11:04 ` [patch 2/5] fs: Add do_close helper Cyrill Gorcunov
2011-10-14 11:04 ` [patch 3/5] fs, proc: Add /proc/$pid/tls entry Cyrill Gorcunov
2011-10-14 16:40 ` Tejun Heo
2011-10-14 16:43 ` Cyrill Gorcunov
2011-10-14 11:04 ` [patch 4/5] fs, proc: Add start_data, end_data, start_brk members to /proc/$pid/stat Cyrill Gorcunov
2011-10-14 11:04 ` [patch 5/5] elf: Add support for loading ET_CKPT files Cyrill Gorcunov
2011-10-14 17:10 ` Tejun Heo
2011-10-14 17:33 ` Tejun Heo
2011-10-19 9:03 ` Pavel Emelyanov
2011-10-19 18:22 ` Tejun Heo
2011-10-19 18:49 ` Cyrill Gorcunov
2011-10-19 18:52 ` Cyrill Gorcunov
2011-10-19 18:53 ` Tejun Heo
2011-10-19 19:56 ` Cyrill Gorcunov
2011-10-21 18:26 ` Tejun Heo
2011-10-21 18:36 ` Cyrill Gorcunov
2011-10-21 18:42 ` Cyrill Gorcunov
2011-10-21 18:48 ` Tejun Heo
2011-10-21 18:53 ` Cyrill Gorcunov
2011-10-22 6:34 ` Pavel Emelyanov
2011-10-20 8:33 ` Pavel Emelyanov
2011-10-20 15:56 ` Tejun Heo
2011-10-20 16:04 ` Cyrill Gorcunov
2011-10-20 17:30 ` Pavel Emelyanov
2011-10-15 18:59 ` Cyrill Gorcunov
2011-10-21 11:06 ` Glauber Costa
2011-10-21 11:20 ` Cyrill Gorcunov
2011-10-21 11:21 ` Glauber Costa [this message]
2011-10-21 11:35 ` Cyrill Gorcunov
2011-10-22 16:49 ` Dan Merillat
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