Re: Readlink: permission denied

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On 05/23/2012 11:43 AM, Reindl Harald wrote:


Am 23.05.2012 20:38, schrieb JD:
fc16 - with latest updates.

Running lsof, I see a plethora of output like:

systemd       1         root  cwd   unknown    /proc/1/cwd (readlink: Permission denied)
systemd       1         root  rtd   unknown    /proc/1/root (readlink: Permission denied)
systemd       1         root  txt   unknown    /proc/1/exe (readlink: Permission denied)

The full output of lsof | sort | uniq  is at
http://www.sendspace.com/file/0v2lgb

what is the consequence of these failures on the rest of the system?

have you considered calling such commands as root instead
as normal user? it is logical that without permissions
the system does not show you all informations



But some processes are owned by me.
Why would I be denied access to info of files opened by processes running with my uid?
This is a bug.

To wit:
COMMAND PID TID USER FD TYPE DEVICE SIZE/OFF NODE NAME gnome-key 1707 jd cwd unknown /proc/1707/cwd (readlink: Permission denied) gnome-key 1707 jd rtd unknown /proc/1707/root (readlink: Permission denied) gnome-key 1707 jd txt unknown /proc/1707/exe (readlink: Permission denied) gnome-key 1707 jd NOFD /proc/1707/fd (opendir: Permission denied) gnome-key 1707 1708 jd cwd unknown /proc/1707/task/1708/cwd (readlink: Permission denied) gnome-key 1707 1708 jd rtd unknown /proc/1707/task/1708/root (readlink: Permission denied) gnome-key 1707 1708 jd txt unknown /proc/1707/task/1708/exe (readlink: Permission denied) gnome-key 1707 1708 jd NOFD /proc/1707/task/1708/fd (opendir: Permission denied) gnome-key 1707 2010 jd cwd unknown /proc/1707/task/2010/cwd (readlink: Permission denied) gnome-key 1707 2010 jd rtd unknown /proc/1707/task/2010/root (readlink: Permission denied) gnome-key 1707 2010 jd txt unknown /proc/1707/task/2010/exe (readlink: Permission denied) gnome-key 1707 2010 jd NOFD /proc/1707/task/2010/fd (opendir: Permission denied) gnome-key 1707 2012 jd cwd unknown /proc/1707/task/2012/cwd (readlink: Permission denied) gnome-key 1707 2012 jd rtd unknown /proc/1707/task/2012/root (readlink: Permission denied) gnome-key 1707 2012 jd txt unknown /proc/1707/task/2012/exe (readlink: Permission denied) gnome-key 1707 2012 jd NOFD /proc/1707/task/2012/fd (opendir: Permission denied) gnome-key 1707 2014 jd cwd unknown /proc/1707/task/2014/cwd (readlink: Permission denied) gnome-key 1707 2014 jd rtd unknown /proc/1707/task/2014/root (readlink: Permission denied) gnome-key 1707 2014 jd txt unknown /proc/1707/task/2014/exe (readlink: Permission denied) gnome-key 1707 2014 jd NOFD /proc/1707/task/2014/fd (opendir: Permission denied) gnome-key 1707 2641 jd cwd unknown /proc/1707/task/2641/cwd (readlink: Permission denied) gnome-key 1707 2641 jd rtd unknown /proc/1707/task/2641/root (readlink: Permission denied) gnome-key 1707 2641 jd txt unknown /proc/1707/task/2641/exe (readlink: Permission denied) gnome-key 1707 2641 jd NOFD /proc/1707/task/2641/fd (opendir: Permission denied) ssh-agent 1897 jd cwd unknown /proc/1897/cwd (readlink: Permission denied) ssh-agent 1897 jd rtd unknown /proc/1897/root (readlink: Permission denied) ssh-agent 1897 jd txt unknown /proc/1897/exe (readlink: Permission denied) ssh-agent 1897 jd NOFD /proc/1897/fd (opendir: Permission denied) gnome-pty 2653 jd cwd unknown /proc/2653/cwd (readlink: Permission denied) gnome-pty 2653 jd rtd unknown /proc/2653/root (readlink: Permission denied) gnome-pty 2653 jd txt unknown /proc/2653/exe (readlink: Permission denied) gnome-pty 2653 jd NOFD /proc/2653/fd (opendir: Permission denied)

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