Process memory map in fedora
Hi,
I'm wondering what changes were put into the fedora kernel and glibc (?)
to enable the process memory map change that I have observed between
another Linux distribution (Mandrake 9.2), and Fedora Core 2.
I believe that the 'flexible-mmap' patch that is part of the -mm kernel
at the moment is involved. Are there any other changes such as in ld.so?
The memory maps in question are output below.
Thanks,
..John
Mandrake 9.2:
[muirj@muirj-1 patches]$ pmap -x $$
23024: /bin/bash
Address kB Resident Shared Private Permissions Name
08048000 608 - 0 608 read/exec bash
080e0000 24 - 0 24 read/write bash
080e6000 424 - 0 424 read/write/exec [ anon ]
40000000 76 - 0 76 read/exec ld-2.3.2.so
40013000 4 - 0 4 read/write ld-2.3.2.so
40014000 4 - 0 4 read/write [ anon ]
40015000 4 - 0 4 read LC_IDENTIFICATION
40016000 4 - 0 4 read LC_MEASUREMENT
40017000 4 - 0 4 read LC_TELEPHONE
40018000 4 - 0 4 read LC_ADDRESS
40019000 4 - 0 4 read LC_NAME
4001a000 4 - 0 4 read LC_PAPER
4001b000 4 - 0 4 read SYS_LC_MESSAGES
4001c000 4 - 0 4 read LC_MONETARY
4001d000 24 - 0 24 read LC_COLLATE
40023000 4 - 0 4 read LC_TIME
40024000 12 - 0 12 read/exec
libtermcap.so.2.0.8
40027000 4 - 0 4 read/write
libtermcap.so.2.0.8
40028000 8 - 0 8 read/exec libdl-2.3.2.so
4002a000 4 - 0 4 read/write libdl-2.3.2.so
4002b000 1192 - 0 1192 read/exec libc-2.3.2.so
40155000 12 - 0 12 read/write libc-2.3.2.so
40158000 16 - 0 16 read/write [ anon ]
4015c000 4 - 0 4 read LC_NUMERIC
4015d000 176 - 0 176 read LC_CTYPE
40189000 4 - 0 4 read/exec ISO8859-1.so
4018a000 4 - 0 4 read/write ISO8859-1.so
40198000 32 - 0 32 read/exec
libnss_files-2.3.2.so
401a0000 4 - 0 4 read/write
libnss_files-2.3.2.so
bfffa000 24 - 0 24 read/write/exec [ anon ]
-------- ------ ------ ------ ------
total kB 2696 - 0 2696
Fedora Core 2:
4085: -bash
Address Kbytes RSS Anon Locked Mode Mapping
002e0000 40 - - - r-x-- libnss_files-2.3.3.so
002ea000 4 - - - r---- libnss_files-2.3.3.so
002eb000 4 - - - rw--- libnss_files-2.3.3.so
00b09000 84 - - - r-x-- ld-2.3.3.so
00b1e000 4 - - - r---- ld-2.3.3.so
00b1f000 4 - - - rw--- ld-2.3.3.so
00b22000 1108 - - - r-x-- libc-2.3.3.so
00c37000 8 - - - r---- libc-2.3.3.so
00c39000 8 - - - rw--- libc-2.3.3.so
00c3b000 8 - - - rw--- [ anon ]
00c3f000 8 - - - r-x-- libdl-2.3.3.so
00c41000 4 - - - r---- libdl-2.3.3.so
00c42000 4 - - - rw--- libdl-2.3.3.so
00c87000 12 - - - r-x-- libtermcap.so.2.0.8
00c8a000 4 - - - rw--- libtermcap.so.2.0.8
00dbb000 4 - - - r-x-- [ anon ]
08047000 556 - - - r-x-- bash
080d2000 24 - - - rw--- bash
080d8000 16 - - - rw--- [ anon ]
0818b000 132 - - - rw--- [ anon ]
f6e3c000 4 - - - rw--- [ anon ]
f6e3d000 24 - - - r--s- gconv-modules.cache
f6e43000 2048 - - - r---- locale-archive
f7050000 8 - - - rw--- [ anon ]
feefe000 1032 - - - rw--- [ stack ]
ffffd000 4 - - - ----- [ anon ]