All of lore.kernel.org
 help / color / mirror / Atom feed
From: Pavel Machek <pavel@suse.cz>
To: Theodore Tso <tytso@mit.edu>, Chris Friesen <cfriesen@nortel.com>,
	mikulas@artax.karlin.mff.cuni.cz, clock@atrey.karlin.mff.cuni.cz,
	kernel list <linux-kernel@vger.kernel.org>,
	aviro@redhat.com
Subject: Re: writing file to disk: not as easy as it looks
Date: Tue, 2 Dec 2008 23:50:22 +0100	[thread overview]
Message-ID: <20081202225022.GA8662@elf.ucw.cz> (raw)
In-Reply-To: <20081202224403.GA8277@elf.ucw.cz>



...and it is unsafe to run ext2/ext3 on any media that can return
error on write. That includes perfectly working disk drives that just
ran out of spare blocks.

> AFAICT it is unsafe to run ext2/ext3 on any media that can be removed
> without unmounting (missing fsync error propagation), and it is

To be fair, bad fsync semantics (error only reported to the first
person that asks) looks like fundamental Unix problem, nothing ext2/3
specific...

> to run ext2/ext3 on any flash-based storage with block interface (SD
> cards, flash sticks).

...and I'm aware of no filesystem that _can_ reliably work on SD
cards/USB flash sticks...
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

  reply	other threads:[~2008-12-02 22:48 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-02  9:40 writing file to disk: not as easy as it looks Pavel Machek
2008-12-02 14:04 ` Theodore Tso
2008-12-02 15:26   ` Pavel Machek
2008-12-02 16:37     ` Theodore Tso
2008-12-02 17:22       ` Chris Friesen
2008-12-02 20:55         ` Theodore Tso
2008-12-02 22:44           ` Pavel Machek
2008-12-02 22:50             ` Pavel Machek [this message]
2008-12-03  5:07             ` Theodore Tso
2008-12-03  8:46               ` Pavel Machek
2008-12-03 15:50                 ` Mikulas Patocka
2008-12-03 15:54                   ` Alan Cox
2008-12-03 17:37                     ` Mikulas Patocka
2008-12-03 17:52                       ` Alan Cox
2008-12-03 18:16                       ` Pavel Machek
2008-12-03 18:33                         ` Mikulas Patocka
2008-12-03 16:42                 ` Theodore Tso
2008-12-03 17:43                   ` Mikulas Patocka
2008-12-03 18:26                     ` Pavel Machek
2008-12-03 15:34               ` Mikulas Patocka
2008-12-15 10:24               ` [patch] " Pavel Machek
2008-12-15 11:03           ` Pavel Machek
2008-12-15 20:08             ` Folkert van Heusden
2008-12-02 19:10       ` Folkert van Heusden
2008-12-02 23:01 ` Mikulas Patocka

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20081202225022.GA8662@elf.ucw.cz \
    --to=pavel@suse.cz \
    --cc=aviro@redhat.com \
    --cc=cfriesen@nortel.com \
    --cc=clock@atrey.karlin.mff.cuni.cz \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mikulas@artax.karlin.mff.cuni.cz \
    --cc=tytso@mit.edu \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.