From: Brian Gerst <bgerst@didntduck.org>
To: Chris Bookholt <kavefish@kavefish.net>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: 2.6 Series Mem Mgmt
Date: Mon, 17 Jan 2005 14:56:03 -0500 [thread overview]
Message-ID: <41EC1853.2070107@didntduck.org> (raw)
In-Reply-To: <41EC1406.6040500@kavefish.net>
Chris Bookholt wrote:
> I'm hoping someone can help explain part of the layout of a process'
> virtual address space in the 2.6 series kernel.
>
> Below is the output of "cat /proc/self/maps" on Fedora Core 3
> (2.6.9-1.6_FC2) with exec-shield[-randomize] disabled and
> legacy_vm_layout enabled.
>
> What is being mapped in at last line (ffffe000-fffff000 ---p)? This is
> always there, no matter what process I run. To my knowledge, this
> wasn't the case on 2.4.
>
> >$ cat /proc/self/maps
> 08048000-0804c000 r-xp 00000000 03:03 2490451 /bin/cat
> 0804c000-0804d000 rw-p 00003000 03:03 2490451 /bin/cat
> 0804d000-0806e000 rw-p 0804d000 00:00 0
> 42344000-42359000 r-xp 00000000 03:03 950351 /lib/ld-2.3.3.so
> 42359000-4235a000 r--p 00014000 03:03 950351 /lib/ld-2.3.3.so
> 4235a000-4235b000 rw-p 00015000 03:03 950351 /lib/ld-2.3.3.so
> 4235d000-42473000 r-xp 00000000 03:03 950450 /lib/tls/libc-2.3.3.so
> 42473000-42474000 r--p 00116000 03:03 950450 /lib/tls/libc-2.3.3.so
> 42474000-42477000 rw-p 00117000 03:03 950450 /lib/tls/libc-2.3.3.so
> 42477000-42479000 rw-p 42477000 00:00 0
> 55017000-55018000 rw-p 55017000 00:00 0
> 55018000-55218000 r--p 00000000 03:03 114690 /usr/lib/locale/locale-archive
> feffe000-ff000000 rw-p feffe000 00:00 0
> ffffe000-fffff000 ---p 00000000 00:00 0
>
> I have not had much success in my search for information via Google &
> IRC and the books I have are specific to the 2.4 series. Any help would
> be greatly appreciated.
>
That is the vsyscall page.
--
Brian Gerst
next prev parent reply other threads:[~2005-01-17 19:55 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-08 0:50 2.6.10-mm2: it87 sensor driver stops CPU fan Simone Piunno
2005-01-08 9:34 ` Jean Delvare
2005-01-10 22:41 ` Simone Piunno
2005-01-11 9:26 ` Jean Delvare
2005-01-11 20:24 ` Jonas Munsin
2005-01-11 20:56 ` Jean Delvare
2005-01-11 22:41 ` Greg KH
2005-01-11 21:04 ` Simone Piunno
2005-01-12 9:44 ` Jean Delvare
2005-01-12 22:27 ` Jonas Munsin
2005-01-13 23:29 ` Greg KH
2005-01-14 14:40 ` Jean Delvare
2005-01-15 15:30 ` [PATCH 2.6] I2C: Allow it87 pwm reconfiguration Jean Delvare
2005-01-15 17:18 ` Simone Piunno
2005-01-19 23:23 ` Greg KH
2005-01-15 15:54 ` 2.6.10-mm2: it87 sensor driver stops CPU fan Simone Piunno
2005-01-15 16:55 ` Jean Delvare
2005-01-16 22:32 ` Simone Piunno
2005-01-17 19:19 ` Jean Delvare
2005-01-17 19:37 ` 2.6 Series Mem Mgmt Chris Bookholt
2005-01-17 19:56 ` Brian Gerst [this message]
2005-01-08 16:20 ` 2.6.10-mm2: it87 sensor driver stops CPU fan Jean Delvare
2005-01-08 19:23 ` Simone Piunno
2005-01-10 19:23 ` Simone Piunno
2005-01-10 19:34 ` Jean Delvare
2005-01-19 20:19 ` Nicolas Pitre
2005-01-19 20:52 ` Jean Delvare
2005-01-19 22:10 ` Nicolas Pitre
2005-01-20 11:08 ` Jean Delvare
2005-01-20 16:01 ` Nicolas Pitre
2005-01-20 16:28 ` Jean Delvare
2005-01-20 21:19 ` Nicolas Pitre
2005-01-21 6:46 ` Jean Delvare
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