From: Taral <taral@taral.net>
To: Keith Owens <kaos@ocs.com.au>
Cc: linux-kernel@vger.kernel.org
Subject: Re: /proc/net/ip_conntrack problems
Date: Sun, 28 Oct 2001 22:36:51 -0600 [thread overview]
Message-ID: <20011028223651.B17685@taral.net> (raw)
In-Reply-To: <20011028220854.A17685@taral.net> <3974.1004329672@kao2.melbourne.sgi.com>
In-Reply-To: <3974.1004329672@kao2.melbourne.sgi.com>
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On Mon, Oct 29, 2001 at 03:27:52PM +1100, Keith Owens wrote:
> Some /proc output is blocked, it will only return complete lines. If
> your buffer is not big enough to hold the next line then you don't get
> anything at all. Try cat /proc/net/ip_conntrack | wc.
So why are 2 lines missing when I change the blocking factor from 256 to
512? Even cat reads in 16k blocks... Also:
% dd if=/proc/net/ip_conntrack bs=512 | perl -ne 'print length()."\n"'
0+2 records in
0+2 records out
153
138
169
151
167
139
No line is longer than 256 chars, so why are 2 lines missing when I read
in 256 byte blocks?
--
Taral <taral@taral.net>
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"Any technology, no matter how primitive, is magic to those who don't
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next prev parent reply other threads:[~2001-10-29 4:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-29 4:08 /proc/net/ip_conntrack problems Taral
2001-10-29 4:27 ` Keith Owens
2001-10-29 4:36 ` Taral [this message]
2001-10-29 21:19 ` Mike Fedyk
2001-10-29 22:24 ` Taral
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