From: k.lichtenwalder@computer.org
To: xine discussion list <xine-user@lists.sourceforge.net>,
linux-kernel@vger.kernel.org
Subject: why raw devices don't seek above 4GB (sometimes)
Date: Tue, 17 Apr 2001 20:52:27 +0200 [thread overview]
Message-ID: <3ADC90EB.526BF2FF@computer.org> (raw)
[-- Attachment #1: Type: text/plain, Size: 1061 bytes --]
ok,
I found my problem. As previously said, I'm on reiser. Which (obviously)
has a file size limit of 4GB set in the superblock. Llseek only allows
seek offsets which are smaller than the allowed file size. What happens
is:
I set up a raw device: raw /dev/raw/raw1 /dev/hdd
with /dev/hdd being my DVD drive.
Xine then does repeated llseeks on /dev/raw/raw1 until it gets above 4G.
Because /dev/raw/raw1 and the associated /dev/hdd both are on reiserfs,
and reiserfs has a 4G limit, llseek assumes the same for the associated
raw devices and returns from the llseek with EINVAL. Bang.
I don't know whether there's an easy solution.
Please contact me if you nee further details/tests
Klaus
--
------------------------------------------------------------------------
Klaus Lichtenwalder, Dipl. Inform., http://www.webforum.de/Klaus/
Fax +49-(0)89-91072699 Lichtenwalder@ACM.org
NIC: KL2100, KL76-RIPE K.Lichtenwalder@Computer.org
PGP Key fingerprint = 2658 EA97 E1A1 2680 5ECA 0036 80F5 F250 3CF8
C2C7
[-- Attachment #2: S/MIME Cryptographic Signature --]
[-- Type: application/x-pkcs7-signature, Size: 2036 bytes --]
next reply other threads:[~2001-04-17 18:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-17 18:52 k.lichtenwalder [this message]
2001-04-17 20:01 ` why raw devices don't seek above 4GB (sometimes) Alan Cox
2001-04-18 4:52 ` [xine-user] " k.lichtenwalder
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=3ADC90EB.526BF2FF@computer.org \
--to=k.lichtenwalder@computer.org \
--cc=linux-kernel@vger.kernel.org \
--cc=xine-user@lists.sourceforge.net \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox