Re: [uml-user] invalid /proc/PID/exe in UML processes

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The host kernel is linux 3.5
And for guest I've tried
Linux 3.9, 3.4 and 3.5.
The distro is RHEL6 and Ubuntu 12.04

-----Original Message-----
From: Richard Weinberger [mailto:ri...@no...] 
Sent: Monday, June 02, 2014 12:06 PM
To: Nalli, Sanketh
Cc: enjoy mindful; use...@li...
Subject: Re: [uml-user] invalid /proc/PID/exe in UML processes

Am 02.06.2014 20:53, schrieb Nalli, Sanketh:
>>> And why does the /proc/PID/exe NOT point to anything in
>>>
>>> The host ? (PID is the pid of a dummy program running in UML)
> 
>> Host PID != Guest PID
> 
> Yes I know that.
> That’s not what I meant.
> 
> What I am trying to say is this :
> 1.  When you run a program in side UML it shows up on HOST as "linux" 
> in the ps -e listing
> 
> 2. the "exe" symlink of that "linux" process in the /proc of the HOST 
> Is EMPTY !!!

Not here:
rw@sandpuppy:~> for i in `pidof linux` ; do ls -l /proc/$i/exe ; done lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/31270/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/31269/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/31266/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/31250/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/31248/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/31245/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/31244/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/31243/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/31237/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/30784/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/30783/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/30759/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/30686/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/30685/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/30684/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/30683/exe -> /home/rw/linux/linux lrwxrwxrwx 1 rw users 0  2. Jun 21:05 /proc/30676/exe -> /home/rw/linux/linux

What host kernel are you using?

Thanks,
//richard