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Date:      Fri, 29 Sep 2000 12:21:01 -0700
From:      "Brian O'Shea" <boshea@ricochet.net>
To:        mirko.viviani@rccr.cremona.it
Cc:        John Polstra <jdp@polstra.com>, current@FreeBSD.ORG
Subject:   Re: procfs info.
Message-ID:  <20000929122101.U622@beastie.localdomain>
In-Reply-To: <200009291849.UAA28186@rccr1.rccr.cremona.it>; from mirko.viviani@rccr.cremona.it on Fri, Sep 29, 2000 at 08:49:06PM %2B0000
References:  <200009291849.UAA28186@rccr1.rccr.cremona.it>

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On Fri, Sep 29, 2000 at 08:49:06PM +0000, mirko.viviani@rccr.cremona.it wrote:
> You wrote:
> 
> > > I need to know the exact format of the /proc/*/cmdline of
> > > FreeBSD. Actually I'm using 4.1 and I have discovered that at the
> > > end of cmdline file there are always 2 NULL characters.
> > 
> > I'm not seeing that on my 4.x-stable system from about a month ago:

Hmm, but look at this:

[panic:/root]# uname -a
FreeBSD panic.localdomain 5.0-CURRENT FreeBSD 5.0-CURRENT #0: Sat Sep 
16 16:24:39 PDT 2000     root@panic.localdomain:/usr/obj/usr/local/cvs
up/current/src/sys/PANIC  i386

[panic:/root]# hd /proc/0/cmdline   
00000000  73 77 61 70 70 65 72 00  00 00 00 00 00 00 00 00  |swapper.........|
00000010
[panic:/root]# hd /proc/10/cmdline 
00000000  69 64 6c 65 00 65 72 00  00 00 00 00 00 00 00 00  |idle.er.........|
00000010
[panic:/root]# hd /proc/11/cmdline   
00000000  73 6f 66 74 69 6e 74 65  72 72 75 70 74 00 00 00  |softinterrupt...|
00000010
[panic:/root]# hd /proc/12/cmdline   
00000000  69 72 71 31 34 3a 20 61  74 61 30 00 00 00 00 00  |irq14: ata0.....|
00000010
[panic:/root]# hd /proc/13/cmdline 
00000000  69 72 71 31 35 3a 20 61  74 61 31 00 00 00 00 00  |irq15: ata1.....|
00000010
[panic:/root]# hd /proc/14/cmdline 
00000000  69 72 71 31 31 3a 20 75  68 63 69 30 2b 00 00 00  |irq11: uhci0+...|
00000010
[panic:/root]# hd /proc/15/cmdline 
00000000  69 72 71 36 3a 20 66 64  63 30 00 00 00 00 00 00  |irq6: fdc0......|
00000010
[panic:/root]# hd /proc/16/cmdline 
00000000  69 72 71 31 3a 20 61 74  6b 62 64 30 00 00 00 00  |irq1: atkbd0....|
00000010

There seem to be lots of nulls at the end of the names of kernel
threads (padding their names to 16 bytes).  Not that it matters,
but it's strange.

-brian

-- 
Brian O'Shea
boshea@ricochet.net


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