From: Huang Ying <ying.huang@intel.com>
To: David Howells <dhowells@redhat.com>
Cc: "Luck, Tony" <tony.luck@intel.com>,
Borislav Petkov <bp@alien8.de>, Tony Luck <tony.luck@gmail.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
"H. Peter Anvin" <hpa@zytor.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"mingo@elte.hu" <mingo@elte.hu>,
"greg@kroah.com" <greg@kroah.com>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
David Miller <davem@davemloft.net>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
Jim Keniston <jkenisto@linux.vnet.ibm.com>,
Kyungmin Park <kmpark@infradead.org>,
Geert Uytterhoeven <geert@linux-m68k.org>
Subject: Re: [concept & "good taste" review] persistent store
Date: Wed, 22 Dec 2010 08:43:55 +0800 [thread overview]
Message-ID: <1292978635.8743.96.camel@yhuang-dev> (raw)
In-Reply-To: <8362.1292977944@redhat.com>
On Wed, 2010-12-22 at 08:32 +0800, David Howells wrote:
> Huang Ying <ying.huang@intel.com> wrote:
>
> > The user space program (syslogd) is in my big picture, it will guarantee
> > an oops meesage actually go to disk via something like fsync. After
> > doing that, the user space program can erase the corresponding record in
> > persistent storage to free the space. So all in all, oops messages not
> > causing system panic or disk error will go to disk eventually and being
> > freed and will not use up the persistent storage.
>
> I see. So you rely on fsync() to hang forever if the message can't be written
> to disk because an oops killed the write path?
Yes. Or fsync() report error.
Best Regards,
Huang Ying
next prev parent reply other threads:[~2010-12-22 0:45 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-13 18:16 [concept & "good taste" review] persistent store Luck, Tony
2010-12-17 1:57 ` Linus Torvalds
2010-12-17 6:28 ` Tony Luck
2010-12-17 18:09 ` Tony Luck
2010-12-17 18:19 ` James Bottomley
2010-12-17 21:38 ` Linus Torvalds
2010-12-17 23:08 ` Tony Luck
2010-12-17 23:11 ` H. Peter Anvin
2010-12-17 23:53 ` Tony Luck
2010-12-18 18:23 ` Linus Torvalds
2010-12-18 23:06 ` Tony Luck
2010-12-19 9:17 ` Borislav Petkov
2010-12-19 17:01 ` Florian Mickler
2010-12-19 20:17 ` Tony Luck
2010-12-20 2:47 ` Huang Ying
2010-12-20 10:46 ` David Howells
2010-12-21 0:41 ` Huang Ying
2010-12-21 10:10 ` David Howells
2010-12-22 0:26 ` Huang Ying
2010-12-22 0:32 ` David Howells
2010-12-22 0:43 ` Huang Ying [this message]
2010-12-22 0:53 ` david
2010-12-22 7:34 ` Tony Luck
2010-12-20 17:19 ` Tony Luck
2010-12-21 0:48 ` Huang Ying
2010-12-21 5:13 ` Tony Luck
2010-12-21 7:42 ` Borislav Petkov
2010-12-20 7:26 ` Borislav Petkov
2010-12-20 17:18 ` Linus Torvalds
2010-12-20 18:58 ` Borislav Petkov
2010-12-20 21:09 ` Tony Luck
2010-12-20 10:49 ` David Howells
2010-12-20 16:52 ` Tony Luck
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