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Description of problem:
while running, for example, cat /proc/self/cmdline, no output is generated. 
strace demonstrates output is written to stdout.

for example:

[root@server1 root]# cat /proc/self/cmdline
[root@server1 root]#

[root@server1 root]# strace cat /proc/self/cmdline
(...)
open("/proc/self/cmdline", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
read(3, "cat\0/proc/self/cmdline\0", 4096) = 23
write(1, "cat\0/proc/self/cmdline\0", 23cat/proc/self/cmdline) = 23
read(3, "", 4096)                       = 0
(...)

strings of the same, however, is correct (strings adds newline termination):

[root@server1 root]# strings /proc/self/cmdline
strings
/proc/self/cmdline
[root@server1 root]#





Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1.cat /proc/self/cmdline
2.
3.
	

Additional info: