Hello,
I'm trying to use UML to provide a "standard environment" for
computational jobs in a Grid computing setting.
So, I launch "linux mem=256M ubd0=apppot0.img con=null con0=fd:0,fd:1
root=/dev/ubda umid=my". The /etc/inittab within the UML
machine is set up to run a certain non-interactive s
On Fri, Apr 29, 2011 at 5:14 PM, Riccardo Murri
wrote:
> Hello,
>
> I'm trying to use UML to provide a "standard environment" for
> computational jobs in a Grid computing setting.
>
> So, I launch "linux mem=256M ubd0=apppot0.img con=null con0=fd:0,fd:1
> root=/dev/ubda umid=my". The /etc/inittab
Hi Richard,
On Fri, Apr 29, 2011 at 5:47 PM, richard -rw- weinberger
wrote:
> Anyway, what is the exact command-line which causes UML to hang?
> Can you provide me a stand alone test case?
>
Here it is:
* download the 64-bit kernel:
http://uml.devloop.org.uk/kernels/kernel64-2.6.35.7.bz2
*
On Fri, Apr 29, 2011 at 6:10 PM, Riccardo Murri
wrote:
> Hi Richard,
>
> On Fri, Apr 29, 2011 at 5:47 PM, richard -rw- weinberger
> wrote:
>> Anyway, what is the exact command-line which causes UML to hang?
>> Can you provide me a stand alone test case?
>>
>
> Here it is:
>
I fear you cannot use
On Fri, Apr 29, 2011 at 6:46 PM, richard -rw- weinberger
wrote:
> I fear you cannot use /dev/null (or any other non-tty file) as stdin. :-(
> UML uses poll() to detect whether input is available from stdin.
> As you can always read from /dev/null poll() doesn't block and
> UML gets flooded with in
On Fri, Apr 29, 2011 at 7:05 PM, Riccardo Murri
wrote:
> But I can still redirect stdin from a named FIFO and attach a "silent"
> process to it:
Sure, but you'll still need a wrapper script which creates this FIFO
in the grid node.
I've had enough fun with sge, lsf, ... ;)
--
Thanks,
//richard
