Try ls -al to show any hidden files starting with '.' ... maybe there is more content on the disk. 

-----Original Message-----
From: Robert D'Attilio [mailto:community-noreply@qnx.com] 
Sent: October-19-11 12:41 PM
To: general-filesystems
Subject: Ram disk free space does not align with what is actually being reported by ls -l

Hi:

We are using QNX641 (PowerPC version) and have created a 32M ram disk using the following commands:

    devf-ram -i 2 -s0,32M &
    waitfor /dev/fs2p0
    flashctl -p /dev/fs2p0 -e -f -n /ram -m

Running 'df -kP' immediately followed by 'ls -l':
# df -kP
Filesystem           1024-blocks      Used Available Capacity  Mounted on
/dev/fs2p0                 32704     25291      7412      78%  /ram

# ls -l
total 34203
-rw-r--r--  1 1000      1000            172 Aug 29 20:36 .lldpport.conf
-rw-r--r--  1 root      0                41 Oct 18 16:35 lldp-debug
-rw-r--r--  1 root      0               953 Oct 18 16:35 plm-debug
-rw-r--r--  1 root      0           2657904 Oct 19 11:26 slc-ew-debug
-rw-r--r--  1 root      0           3145819 Oct 19 10:13 slc-ew-debug.1_2011-10-19-11-26
-rw-r--r--  1 root      0           3145816 Oct 19 06:48 slc-ew-debug.2_2011-10-19-10-13
-rw-r--r--  1 root      0           2267346 Oct 19 11:34 slc-we-debug
-rw-r--r--  1 root      0           3145728 Oct 19 10:18 slc-we-debug.1_2011-10-19-11-34
-rw-r--r--  1 root      0           3145728 Oct 19 07:03 slc-we-debug.2_2011-10-19-10-18


So 'df' reports ~25M of disk space is used yet if you tally up the contents of the directory as reported by ls -l, only 
~17M are used. Not clear why the discrepancy? I can understand that there might be some overhead for the actual 
management of the partition but 8M??

Thanks
Robert



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