From: Tejun Heo <tj@kernel.org>
To: "Suzuki K. Poulose" <suzuki@in.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org,
Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>,
Christoph Hellwig <hch@lst.de>,
Masami Hiramatsu <mhiramat@redhat.com>,
Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
Daisuke HATAYAMA <d.hatayama@jp.fujitsu.com>,
Andi Kleen <andi@firstfloor.org>,
Roland McGrath <roland@redhat.com>,
Amerigo Wang <amwang@redhat.com>,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
Oleg Nesterov <oleg@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [RFC] [Patch 0/21] Non disruptive application core dump infrastructure
Date: Wed, 15 Dec 2010 10:37:48 +0100 [thread overview]
Message-ID: <4D088C6C.8020800@kernel.org> (raw)
In-Reply-To: <20101215110446.157bbb25@suzukikp>
Hello, Suzuki.
On 12/15/2010 06:34 AM, Suzuki K. Poulose wrote:
> I'd be very glad not using the freezer if there is a neat way to
> accomplish this without the undesired side effects. Tejun's ptrace
> enhancement would still require a userland program to control
> it(gcore); something contained in the kernel would be ideal.
Why is using gcore a bad thing? If we make ptrace avoid the implicit
SIGSTOP, the side effects of ptrace would be the same as using freezer
but with the benefit that it's properly integrated to the process
model and job control.
Thanks.
--
tejun
next prev parent reply other threads:[~2010-12-15 9:38 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-14 9:52 [RFC] [Patch 0/21] Non disruptive application core dump infrastructure Suzuki K. Poulose
2010-12-14 9:54 ` [Patch 1/21] Reuse freezable() predicate Suzuki K. Poulose
2010-12-14 9:57 ` [Patch 2/21] Create elfcore-common.c for ELF class independent core generation helpers Suzuki K. Poulose
2010-12-14 10:00 ` [Patch 3/21] Make vma_dump_size() generic Suzuki K. Poulose
2010-12-14 15:53 ` Oleg Nesterov
2010-12-14 10:01 ` [Patch 4/21] Make fill_psinfo generic Suzuki K. Poulose
2010-12-14 15:53 ` Oleg Nesterov
2010-12-14 15:55 ` Linus Torvalds
2010-12-15 2:22 ` Suzuki K. Poulose
2010-12-14 10:03 ` [Patch 5/21] Rename compat versions of the reusable core generation routines Suzuki K. Poulose
2010-12-14 15:57 ` Oleg Nesterov
2010-12-15 2:30 ` Suzuki K. Poulose
2010-12-14 10:04 ` [Patch 6/21] Export the reusable ELF " Suzuki K. Poulose
2010-12-14 10:05 ` [Patch 7/21] Define API for reading arch specif Program Headers for Core Suzuki K. Poulose
2010-12-14 10:08 ` [Patch 8/21] ia64 Implementation of elf_core_copy_extra_phdrs() Suzuki K. Poulose
2010-12-14 10:09 ` [Patch 9/21] UML (i386) " Suzuki K. Poulose
2010-12-14 10:11 ` [Patch 10/21] Create /proc/pid/core entry Suzuki K. Poulose
2010-12-14 10:36 ` Cong Wang
2010-12-14 15:02 ` Suzuki K. Poulose
2010-12-14 10:12 ` [Patch 11/21] Track the core generation requests Suzuki K. Poulose
2010-12-14 10:51 ` Alexey Dobriyan
2010-12-14 16:04 ` Oleg Nesterov
2010-12-14 10:13 ` [Patch 12/21] Check if the process is an ELF executable Suzuki K. Poulose
2010-12-14 16:05 ` Oleg Nesterov
2010-12-14 10:15 ` [Patch 13/21] Freeze / Thaw threads Suzuki K. Poulose
2010-12-14 16:17 ` Oleg Nesterov
2010-12-14 10:16 ` [Patch 14/21] Create ELF header Suzuki K. Poulose
2010-12-14 16:24 ` Oleg Nesterov
2010-12-14 10:17 ` [Patch 15/21] Collect ELF Core notes data Suzuki K. Poulose
2010-12-14 16:37 ` Oleg Nesterov
2010-12-14 10:19 ` [Patch 16/21] Wait for threads to freeze Suzuki K. Poulose
2010-12-14 16:42 ` Oleg Nesterov
2010-12-14 10:20 ` [Patch 17/21] Calculate the size of the core file Suzuki K. Poulose
2010-12-14 10:22 ` [Patch 18/21] Generate the data sections for ELF Core Suzuki K. Poulose
2010-12-15 7:19 ` Cong Wang
2010-12-15 12:46 ` Suzuki K. Poulose
2010-12-16 2:14 ` Cong Wang
2010-12-14 10:24 ` [Patch 19/21] Identify the ELF class of the process Suzuki K. Poulose
2010-12-14 10:26 ` [Patch 20/21] Add supporting for compat ELF class data structures Suzuki K. Poulose
2010-12-14 10:27 ` [Patch 21/21] Compat ELF class Core generation support Suzuki K. Poulose
2010-12-14 10:54 ` [RFC] [Patch 0/21] Non disruptive application core dump infrastructure Alexey Dobriyan
2010-12-14 14:59 ` Suzuki K. Poulose
2010-12-14 15:49 ` Linus Torvalds
2010-12-14 16:03 ` Tejun Heo
2010-12-14 16:19 ` Linus Torvalds
2010-12-14 16:28 ` Tejun Heo
2010-12-15 5:34 ` Suzuki K. Poulose
2010-12-15 9:37 ` Tejun Heo [this message]
2010-12-15 11:26 ` Suzuki K. Poulose
2010-12-15 11:51 ` Andi Kleen
2010-12-16 7:57 ` Suzuki K. Poulose
2010-12-15 1:04 ` KAMEZAWA Hiroyuki
2010-12-15 5:24 ` Suzuki K. Poulose
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