UNIX for Dummies Questions & Answers

[snip..]
error: "Success" reading key "dev.parport.parport0.autoprobe"
[snip...]
error: permission denied on key 'net.ipv4.route.flush'
[snip...]

$ ls -l /proc/sys/net/ipv4/route/flush
--w------- 1 root root 0 Feb 23 15:19 /proc/sys/net/ipv4/route/flush

$

dino99,

I think it does not a kernel bug or an issue. It just doesn't have the read
permission for "sysctl" to read the data from it.
As you can see in the "/proc/sys" directory, not all the files are readable,
some of them are only have write permission. That means you can't read
any data from it and inside kernel source, it doesn't implement the read
function for the file.

% ls -l /proc/sys/kernel/cad_pid /proc/sys/fs/binfmt_misc/register /proc/sys/net/ipv4/route/flush /proc/sys/net/ipv6/route/flush
--w------- 1 root root 0 2010-06-22 09:35 /proc/sys/fs/binfmt_misc/register
-rw------- 1 root root 0 2010-06-25 14:11 /proc/sys/kernel/cad_pid
--w------- 1 root root 0 2010-06-25 14:12 /proc/sys/net/ipv4/route/flush
--w------- 1 root root 0 2010-06-25 14:12 /proc/sys/net/ipv6/route/flush

So, I'm going to close this bug if you can accept my explanation.