From: "Jörn Engel" <joern@logfs.org>
To: Artem Bityutskiy <dedekind1@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
LKML <linux-kernel@vger.kernel.org>,
"Koskinen Aaro \(Nokia-D/Helsinki\)" <aaro.koskinen@nokia.com>,
linux-mtd <linux-mtd@lists.infradead.org>,
Simon Kagstrom <simon.kagstrom@netinsight.net>,
Ingo Molnar <mingo@elte.hu>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [PATCH/RFC v5 4/5]: core: Add dump device to call on oopses and panics
Date: Mon, 30 Nov 2009 10:54:51 +0100 [thread overview]
Message-ID: <20091130095451.GA15335@logfs.org> (raw)
In-Reply-To: <1259574055.7518.80.camel@localhost>
On Mon, 30 November 2009 11:40:55 +0200, Artem Bityutskiy wrote:
>
> The other alternative I was thinking about was to introduce a boolean
> flag, and set it to one as soon as 'lon_end' becomes larger than
> 'log_buf_len'.
I've thought about that as well. The drawback is that we would have to
check in the regular printk path - by the time the panic notifier is
running it is too late. So it adds cost to the regular case.
Jörn
--
There are three principal ways to lose money: wine, women, and engineers.
While the first two are more pleasant, the third is by far the more certain.
-- Baron Rothschild
WARNING: multiple messages have this Message-ID (diff)
From: "Jörn Engel" <joern@logfs.org>
To: Artem Bityutskiy <dedekind1@gmail.com>
Cc: Simon Kagstrom <simon.kagstrom@netinsight.net>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-mtd <linux-mtd@lists.infradead.org>,
LKML <linux-kernel@vger.kernel.org>,
"Koskinen Aaro (Nokia-D/Helsinki)" <aaro.koskinen@nokia.com>,
Ingo Molnar <mingo@elte.hu>,
David Woodhouse <dwmw2@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [PATCH/RFC v5 4/5]: core: Add dump device to call on oopses and panics
Date: Mon, 30 Nov 2009 10:54:51 +0100 [thread overview]
Message-ID: <20091130095451.GA15335@logfs.org> (raw)
In-Reply-To: <1259574055.7518.80.camel@localhost>
On Mon, 30 November 2009 11:40:55 +0200, Artem Bityutskiy wrote:
>
> The other alternative I was thinking about was to introduce a boolean
> flag, and set it to one as soon as 'lon_end' becomes larger than
> 'log_buf_len'.
I've thought about that as well. The drawback is that we would have to
check in the regular printk path - by the time the panic notifier is
running it is too late. So it adds cost to the regular case.
Jörn
--
There are three principal ways to lose money: wine, women, and engineers.
While the first two are more pleasant, the third is by far the more certain.
-- Baron Rothschild
next prev parent reply other threads:[~2009-11-30 9:55 UTC|newest]
Thread overview: 141+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-11 6:10 [PATCH] panic.c: export panic_on_oops Artem Bityutskiy
2009-10-11 6:10 ` Artem Bityutskiy
2009-10-12 11:15 ` Ingo Molnar
2009-10-12 11:15 ` Ingo Molnar
2009-10-12 11:23 ` Simon Kagstrom
2009-10-12 11:23 ` Simon Kagstrom
2009-10-12 11:25 ` Artem Bityutskiy
2009-10-12 11:25 ` Artem Bityutskiy
2009-10-12 11:37 ` Ingo Molnar
2009-10-12 11:37 ` Ingo Molnar
2009-10-12 12:01 ` Simon Kagstrom
2009-10-12 12:01 ` Simon Kagstrom
2009-10-12 12:09 ` Ingo Molnar
2009-10-12 12:09 ` Ingo Molnar
2009-10-12 12:15 ` David Woodhouse
2009-10-12 12:15 ` David Woodhouse
2009-10-12 12:20 ` Ingo Molnar
2009-10-12 12:20 ` Ingo Molnar
2009-10-12 12:33 ` David Woodhouse
2009-10-12 12:33 ` David Woodhouse
2009-10-12 12:36 ` Ingo Molnar
2009-10-12 12:36 ` Ingo Molnar
2009-10-12 12:48 ` David Woodhouse
2009-10-12 12:48 ` David Woodhouse
2009-10-12 13:06 ` Simon Kagstrom
2009-10-12 13:06 ` Simon Kagstrom
2009-10-12 13:15 ` Ingo Molnar
2009-10-12 13:15 ` Ingo Molnar
2009-10-12 13:39 ` Simon Kagstrom
2009-10-12 13:39 ` Simon Kagstrom
2009-10-12 14:30 ` Ingo Molnar
2009-10-12 14:30 ` Ingo Molnar
2009-10-12 15:01 ` Simon Kagstrom
2009-10-12 15:01 ` Simon Kagstrom
2009-10-12 15:23 ` Ingo Molnar
2009-10-12 15:23 ` Ingo Molnar
2009-10-12 15:36 ` Linus Torvalds
2009-10-12 15:36 ` Linus Torvalds
2009-10-12 15:44 ` Linus Torvalds
2009-10-12 15:44 ` Linus Torvalds
2009-10-12 17:29 ` Artem Bityutskiy
2009-10-12 17:29 ` Artem Bityutskiy
2009-10-12 17:43 ` Linus Torvalds
2009-10-12 17:43 ` Linus Torvalds
2009-10-12 17:46 ` Linus Torvalds
2009-10-12 17:46 ` Linus Torvalds
2009-10-12 18:09 ` Andrew Morton
2009-10-12 18:09 ` Andrew Morton
2009-10-12 18:23 ` Ingo Molnar
2009-10-12 18:23 ` Ingo Molnar
2009-10-12 18:36 ` Andrew Morton
2009-10-12 18:36 ` Andrew Morton
2009-10-12 18:45 ` Linus Torvalds
2009-10-12 18:45 ` Linus Torvalds
2009-10-12 19:14 ` Ingo Molnar
2009-10-12 19:14 ` Ingo Molnar
2009-10-12 19:18 ` Dirk Hohndel
2009-10-12 19:18 ` Dirk Hohndel
2009-10-13 7:58 ` Simon Kagstrom
2009-10-13 7:58 ` Simon Kagstrom
2009-10-13 8:57 ` Artem Bityutskiy
2009-10-13 8:57 ` Artem Bityutskiy
2009-10-13 13:17 ` [PATCH/RFC v5 0/5]: mtdoops: fixes and improvements Simon Kagstrom
2009-10-13 13:17 ` Simon Kagstrom
2009-10-13 13:21 ` [PATCH/RFC v5 1/5]: mtdoops: avoid erasing already empty areas Simon Kagstrom
2009-10-13 13:21 ` Simon Kagstrom
2009-10-13 13:22 ` [PATCH/RFC v5 2/5]: mtdoops: Keep track of used/unused mtdoops pages in an array Simon Kagstrom
2009-10-13 13:22 ` Simon Kagstrom
2009-10-13 13:22 ` [PATCH/RFC v5 3/5]: mtdoops: Make page (record) size configurable Simon Kagstrom
2009-10-13 13:22 ` Simon Kagstrom
2009-10-13 13:22 ` [PATCH/RFC v5 4/5]: core: Add dump device to call on oopses and panics Simon Kagstrom
2009-10-13 13:22 ` Simon Kagstrom
2009-10-13 15:37 ` Linus Torvalds
2009-10-13 15:37 ` Linus Torvalds
2009-11-26 9:36 ` Jörn Engel
2009-11-26 9:36 ` Jörn Engel
2009-11-30 7:27 ` Artem Bityutskiy
2009-11-30 7:27 ` Artem Bityutskiy
2009-11-30 7:46 ` Jörn Engel
2009-11-30 7:46 ` Jörn Engel
2009-11-30 8:51 ` Artem Bityutskiy
2009-11-30 8:51 ` Artem Bityutskiy
2009-11-30 9:35 ` Jörn Engel
2009-11-30 9:35 ` Jörn Engel
2009-11-30 9:40 ` Artem Bityutskiy
2009-11-30 9:40 ` Artem Bityutskiy
2009-11-30 9:53 ` Simon Kagstrom
2009-11-30 9:53 ` Simon Kagstrom
[not found] ` <1259580207.19465.379.camel@macbook.infradead.org>
[not found] ` <20091130123752.39727115@marrow.netinsight.se>
[not found] ` <1259582202.19465.388.camel@macbook.infradead.org>
2009-11-30 12:03 ` Simon Kagstrom
2009-11-30 9:54 ` Jörn Engel [this message]
2009-11-30 9:54 ` Jörn Engel
2009-11-30 10:23 ` David Woodhouse
2009-11-30 10:23 ` David Woodhouse
2009-11-30 10:27 ` David Woodhouse
2009-11-30 10:27 ` David Woodhouse
2009-11-30 9:09 ` Artem Bityutskiy
2009-11-30 9:09 ` Artem Bityutskiy
2009-11-30 9:28 ` Simon Kagstrom
2009-11-30 9:28 ` Simon Kagstrom
2009-10-13 13:22 ` [PATCH/RFC v5 5/5]: mtdoops: refactor as a dump_device Simon Kagstrom
2009-10-13 13:22 ` Simon Kagstrom
2009-10-14 13:34 ` [PATCH v6 0/5]: mtdoops: fixes and improvements Simon Kagstrom
2009-10-14 13:34 ` Simon Kagstrom
2009-10-14 13:40 ` [PATCH v6 1/5]: mtdoops: avoid erasing already empty areas Simon Kagstrom
2009-10-14 13:40 ` Simon Kagstrom
2009-10-14 13:41 ` [PATCH v6 2/5]: mtdoops: Keep track of used/unused mtdoops pages in an array Simon Kagstrom
2009-10-14 13:41 ` Simon Kagstrom
2009-10-14 13:41 ` [PATCH v6 3/5]: mtdoops: Make page (record) size configurable Simon Kagstrom
2009-10-14 13:41 ` Simon Kagstrom
2009-10-14 13:41 ` [PATCH v6 4/5]: core: Add kernel message dumper to call on oopses and panics Simon Kagstrom
2009-10-14 13:41 ` Simon Kagstrom
2009-10-14 16:49 ` Linus Torvalds
2009-10-14 16:49 ` Linus Torvalds
2009-10-14 13:41 ` [PATCH v6 5/5]: mtdoops: refactor as a kmsg_dumper Simon Kagstrom
2009-10-14 13:41 ` Simon Kagstrom
2009-10-14 15:12 ` Simon Kagstrom
2009-10-14 15:12 ` Simon Kagstrom
2009-10-15 5:11 ` vimal singh
2009-10-15 5:11 ` vimal singh
2009-10-12 12:27 ` [PATCH] panic.c: export panic_on_oops Simon Kagstrom
2009-10-12 12:27 ` Simon Kagstrom
2009-10-12 12:32 ` Ingo Molnar
2009-10-12 12:32 ` Ingo Molnar
2009-10-12 13:08 ` Alan Cox
2009-10-12 13:08 ` Alan Cox
2009-10-12 13:25 ` Ingo Molnar
2009-10-12 13:25 ` Ingo Molnar
2009-10-12 13:32 ` David Woodhouse
2009-10-12 13:32 ` David Woodhouse
2009-10-12 14:26 ` Ingo Molnar
2009-10-12 14:26 ` Ingo Molnar
2009-10-12 14:36 ` David Woodhouse
2009-10-12 14:36 ` David Woodhouse
2009-10-12 15:14 ` Ingo Molnar
2009-10-12 15:14 ` Ingo Molnar
2009-10-12 18:32 ` Carl-Daniel Hailfinger
2009-10-12 18:32 ` Carl-Daniel Hailfinger
2009-10-12 19:18 ` Ingo Molnar
2009-10-12 19:18 ` Ingo Molnar
2009-10-12 14:12 ` Arjan van de Ven
2009-10-12 14:12 ` Arjan van de Ven
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