What does "zero" imply in "pmap -x" output?
Issue
- What does "zero" imply in "pmap -x" output?
- Under "Mapping" column there are lots of "zero" entries.
15709: oracle
Address Kbytes RSS Dirty Mode Mapping
00002aaaacd07000 960 24 20 rw--- zero
00002aaaacdf7000 384 24 20 rw--- zero
00002aaaace57000 192 184 176 rw--- zero
00002aaaace87000 192 192 192 rw--- zero
00002aaaaceb7000 192 192 192 rw--- zero
00002aaaacee7000 64 64 0 rw--- zero
00002aaaacef7000 64 52 52 rw--- zero
00002aaaacf07000 67264 20 12 rw--- zero
00002aaab10b7000 192 192 192 rw--- zero
00002aaab10e7000 192 192 192 rw--- zero
00002aaab1117000 192 192 192 rw--- zero
^ ^
+---[MEM in KB] +------------[zero entry under MAPPING]
Environment
- Red Hat Enterprise Linux 5.8
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