Re: /proc/net/ip_conntrack problems

From: Taral (taral@taral.net)
Date: Sun Oct 28 2001 - 23:36:51 EST

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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This archive was generated by hypermail 2b29 : Wed Oct 31 2001 - 21:00:36 EST