Sanketh
> Sent: Monday, June 02, 2014 6:29 PM
> To: user-mode-linux-user@lists.sourceforge.net; 'Richard Weinberger'
> Cc: Volos, Haris
> Subject: RE: [uml-user] invalid /proc/PID/exe in UML processes
>
> Okay, so I've found a way around the invalid exe symlink.
>
2014 1:46 PM
To: Nalli, Sanketh
Cc: user-mode-linux-user@lists.sourceforge.net
Subject: Re: [uml-user] invalid /proc/PID/exe in UML processes
Am 02.06.2014 22:42, schrieb Nalli, Sanketh:
> Nope, but here is some bootlog
Hmm, I have no idea so far.
Applications running under valgrind or ot
r'
Cc: Volos, Haris
Subject: RE: [uml-user] invalid /proc/PID/exe in UML processes
Okay, so I've found a way around the invalid exe symlink.
I don't need that anymore.
The next challenge is concurrency in UML.
I wrote a simple program that launches 10 pthreads, Each of which makes some
: 'Richard Weinberger'
Cc: 'user-mode-linux-user@lists.sourceforge.net'
Subject: RE: [uml-user] invalid /proc/PID/exe in UML processes
Oh wait, sorry its not.
-Original Message-
From: Nalli, Sanketh
Sent: Monday, June 02, 2014 1:50 PM
To: 'Richard Weinberger&
Oh wait, sorry its not.
-Original Message-
From: Nalli, Sanketh
Sent: Monday, June 02, 2014 1:50 PM
To: 'Richard Weinberger'
Cc: user-mode-linux-user@lists.sourceforge.net
Subject: RE: [uml-user] invalid /proc/PID/exe in UML processes
OK Checking for new_mm and switch_mm supp
OK Checking for new_mm and switch_mm support in the host:
> /proc/self/mm ... Failed -
> No such file or directory
> Checking for the skas3 patch in the host:
> - /proc/mm...not found: No such file or directory
> - PTRACE_FAULTINFO...not found
> - PTRACE_LDT...not found
> UML running
Am 02.06.2014 22:42, schrieb Nalli, Sanketh:
> Nope, but here is some bootlog
Hmm, I have no idea so far.
Applications running under valgrind or other debuggers suffered from the issue
that /proc/pid/exe is empty.
> The host does not have skas3 patch
> Do you think that is the problem ?
Nope. S
To: Nalli, Sanketh
Cc: user-mode-linux-user@lists.sourceforge.net
Subject: Re: [uml-user] invalid /proc/PID/exe in UML processes
Are you running UML under a debugger?
Thanks,
//richard
Am 02.06.2014 22:16, schrieb Nalli, Sanketh:
> -r--r--r-- 1 nalli nalli 0 Jun 2 13:07 wchan
> nalli
ts including the hidden Ones in a
>> long listing fashion.
>
> Please show it verbatim.
>
> Thanks,
> //richard
>
>> -----Original Message-
>> From: Richard Weinberger [mailto:rich...@nod.at]
>> Sent: Monday, June 02, 2014 12:20 PM
>> To: Na
x-user@lists.sourceforge.net
Subject: Re: [uml-user] invalid /proc/PID/exe in UML processes
Am 02.06.2014 22:11, schrieb Nalli, Sanketh:
> Nothing..just lists all the contents including the hidden Ones in a
> long listing fashion.
Please show it verbatim.
Thanks,
//richard
> -O
une 02, 2014 12:20 PM
> To: Nalli, Sanketh
> Cc: user-mode-linux-user@lists.sourceforge.net
> Subject: Re: [uml-user] invalid /proc/PID/exe in UML processes
>
>
>
> Am 02.06.2014 21:16, schrieb Nalli, Sanketh:
>> nalli@haris-crashnburn:~$ cd /proc/6188
>> nalli@
] invalid /proc/PID/exe in UML processes
Am 02.06.2014 21:16, schrieb Nalli, Sanketh:
> nalli@haris-crashnburn:~$ cd /proc/6188
> nalli@haris-crashnburn:/proc/6188$ ls -l exe
What does "ls -la /proc/6188" show?
T
: Monday, June 02, 2014 12:12 PM
To: Richard Weinberger
Cc: user-mode-linux-user@lists.sourceforge.net
Subject: Re: [uml-user] invalid /proc/PID/exe in UML processes
Also,
This is how I compile and run :
make defconfig ARCH=um
make menuconfig ARCH=um ( set the CONFIG_X86_64 = y) make -j 24 ARCH=um
Am 02.06.2014 21:16, schrieb Nalli, Sanketh:
> nalli@haris-crashnburn:~$ cd /proc/6188
> nalli@haris-crashnburn:/proc/6188$ ls -l exe
What does "ls -la /proc/6188" show?
Thanks,
//richard
--
Learn Graph Databases - Dow
:06 PM
To: Nalli, Sanketh
Cc: enjoy mindful; user-mode-linux-user@lists.sourceforge.net
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 ?
-user@lists.sourceforge.net
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)
>
>> H
-Original Message-
From: Nalli, Sanketh
Sent: Monday, June 02, 2014 11:54 AM
To: Richard Weinberger
Cc: user-mode-linux-user@lists.sourceforge.net
Subject: Re: [uml-user] invalid /proc/PID/exe in UML processes
And that symlink is crucial to the workload I am trying to run
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. Wh
1:41 AM
To: Nalli, Sanketh
Cc: enjoy mindful; user-mode-linux-user@lists.sourceforge.net
Subject: Re: [uml-user] invalid /proc/PID/exe in UML processes
On Mon, Jun 2, 2014 at 7:55 PM, Nalli, Sanketh wrote:
> Thanks a lot.
>
> Do you know why my /proc is empty in the guest
Did you mount proc
li, Sanketh
Cc: enjoy mindful; user-mode-linux-user@lists.sourceforge.net
Subject: Re: [uml-user] invalid /proc/PID/exe in UML processes
On Mon, Jun 2, 2014 at 7:55 PM, Nalli, Sanketh wrote:
> Thanks a lot.
>
> Do you know why my /proc is empty in the guest
Did you mount procfs?
>
>
&g
t PID != Guest PID
>
>
> From: enjoy mindful [mailto:enjoymind...@gmail.com]
> Sent: Friday, May 30, 2014 12:06 AM
> To: Nalli, Sanketh
> Cc: user-mode-linux-user@lists.sourceforge.net
> Subject: Re: [uml-user] invalid /proc/PID/exe in UML processes
>
>
>
> let me answer
-mode-linux-user@lists.sourceforge.net
Subject: Re: [uml-user] invalid /proc/PID/exe in UML processes
let me answer your second question.
I did this analysis with kernel linux-3.12.6:
1) make ARCH=um cscope
2) search functions which called 'clone'
File FunctionLine
0
On Fri, May 30, 2014 at 3:22 AM, Nalli, Sanketh wrote:
> Hi,
>
> So I start UML with the cmdline
>
> ./linux rootfstype=hostfs rw mem=1G init=/bin/bash
>
>
>
> When the bash shell comes up, I run my prog : ./my_prog
>
>
>
> 6173 pts/800:00:00 linux
>
> 6180 pts/800:00:00 linux
>
> 6181 pts
let me answer your second question.
I did this analysis with kernel linux-3.12.6:
1) make ARCH=um cscope
2) search functions which called 'clone'
File FunctionLine
0 ubd_user.c start_io_thread 43 pid = clone(io_thread, (void *) sp,
CLONE_FILES |
Hi,
So I start UML with the cmdline
./linux rootfstype=hostfs rw mem=1G init=/bin/bash
When the bash shell comes up, I run my prog : ./my_prog
6173 pts/800:00:00 linux
6180 pts/800:00:00 linux
6181 pts/800:00:00 linux
6182 pts/800:00:00 linux
6183 pts/800:00:00 linux
6188 pts/
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