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Question 48

Read about meaning of the fourth (08:01) and fifth (144225) column in man procfs.

Answer

Here is a relevant listing, showing the contents of /proc/2186/maps file:

> cat /proc/2186/maps
00400000-00401000 r-xp 00000000 08:01 144225 /home/stud/main
00600000-00601000 rwxp 00000000 08:01 144225 /home/stud/main
7fff11ac0000-7fff11ae1000 rwxp 00000000 00:00 0 [stack]
7fff11bfc000-7fff11bfe000 r-xp 00000000 00:00 0 [vdso]
7fff11bfe000-7fff11c00000 r--p 00000000 00:00 0 [vvar]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]

This file corresponds to the memory map of the process with ID equal to 2186.

08:01 corresponds to the device major and minor numbers. In case of disks it often means the disk number and partition. 144225 corresponds to the inode of the respective file.

Anonymous pages correspond to no file in filesystem, thus their respective fields contain stub zeros.

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