From: "H. Peter Anvin" <hpa@zytor.com>
To: Mikael Pettersson <mikpe@it.uu.se>
Cc: james-p@moving-picture.com, linux-kernel@vger.kernel.org,
aarapov@redhat.com, akpm@linux-foundation.org
Subject: Re: [PATCH -mm] Don't truncate /proc/PID/environ at 4096 characters
Date: Wed, 19 Sep 2007 08:59:23 -0700 [thread overview]
Message-ID: <46F1475B.5050107@zytor.com> (raw)
In-Reply-To: <200709191454.l8JEsAQO010080@harpo.it.uu.se>
Mikael Pettersson wrote:
> On Wed, 19 Sep 2007 14:35:29 +0100, James Pearson wrote:
>> /proc/PID/environ currently truncates at 4096 characters, patch based on
>> the /proc/PID/mem code.
>
> Does /proc/PID/mem even work? If I do `strace cat /proc/PID/mem > /dev/null'
> for a known good PID, the first read() from /proc/PID/mem fails with ESRCH,
Of course it does. Address zero isn't typically mapped.
-hpa
next prev parent reply other threads:[~2007-09-19 16:03 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-19 14:54 [PATCH -mm] Don't truncate /proc/PID/environ at 4096 characters Mikael Pettersson
2007-09-19 15:59 ` H. Peter Anvin [this message]
2007-09-19 18:35 ` Mikael Pettersson
2007-09-19 19:29 ` Hugh Dickins
-- strict thread matches above, loose matches on Subject: below --
2007-09-25 16:44 James Pearson
2007-09-19 13:35 James Pearson
2007-09-20 23:46 ` Andrew Morton
2007-09-21 9:41 ` James Pearson
2007-09-21 10:00 ` Mel Gorman
2007-09-21 1:56 ` Arvin Moezzi
2007-09-21 9:47 ` James Pearson
2007-09-21 12:47 ` Arvin Moezzi
2007-09-21 13:47 ` James Pearson
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