On 12 Oct 2006, Christopher Marshall told this:
> The other thing you can try is to make a simple initrd file with some
> busybox commands in it, enough to give you the ash shell and some
> commands like mount, pivot_root, chroot, so you can try to mount the
> root filesystem yourself then pivot_ro
Hi everybody - my first post!
I have been running UML successfully close to 18 months.
I general run a Debian Sarge host, using 2.6.8 kernel and the UML's still
run a 2.4.27 kernel.
The host hardware is an Intel based system with 2G of memory and the
production server as an IBM x346
All seems to
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Hello UML list
There is a new GPL project that might be interesting for UML community.
The demo uses a UML process to demonstrate running bash on a webpage.
Demo here -->
http://testape.com/webtty_page.php?fs=1
The homepage is here -->
http://testape.com/webtty_sample.php
Br,
Martin
On Tue, 24 Oct 2006, Jeff Dike wrote:
> On Tue, Oct 24, 2006 at 10:35:22AM -0700, Christopher Marshall wrote:
>> Would running a UML instance from a user account with no priviledges
>> on the host be sufficient to prevent a root process controlled by a
>> malicious user running within the UML fro
On Tue, Oct 24, 2006 at 10:35:52AM -0700, Huei-Ping Chen (huchen) wrote:
> I am testing a driver, it crash in UML when it calls vmalloc,
>
> Poking around, it seems, kmem_top has an invalid memory location,
kmem_top has nothing to do with why vmalloc is crashing. We'd need
more details in order
On Tue, Oct 24, 2006 at 10:35:22AM -0700, Christopher Marshall wrote:
> Would running a UML instance from a user account with no priviledges
> on the host be sufficient to prevent a root process controlled by a
> malicious user running within the UML from taking any possible
> advantage of the host
Scott,
On Tue, 24 Oct 2006, Scott Edwards wrote:
> On 10/24/06, John P. Mitchell <[EMAIL PROTECTED]> wrote:
>> All,
>>
>> I have been reading about UML on the UML Kernel Home Page. I have
>> found several references to security issues such as the host system being
>> accesible from the guest
On 10/24/06, John P. Mitchell <[EMAIL PROTECTED]> wrote:
> All,
>
> I have been reading about UML on the UML Kernel Home Page. I have
> found several references to security issues such as the host system being
> accesible from the guest system and memory not being secure between
> multple UML
Hi,
I am testing a driver, it crash in UML when it calls vmalloc,
Poking around, it seems, kmem_top has an invalid memory location,
unsigned long get_kmem_end(void)
{
if(kmem_top == 0)
kmem_top = CHOOSE_MODE(kmem_end_tt, kmem_end_skas);
return(kmem_top);
}
(g
--- Jeff Dike <[EMAIL PROTECTED]> wrote:
> On Tue, Oct 24, 2006 at 08:07:20AM -0800, John P. Mitchell wrote:
> > Found another one:
> >
> > http://user-mode-linux.sourceforge.net/help-kernel-v1.html
> > The bullet point is "protect kernel memory from userspace"
>
> Oops, very obsolete.
>
>
On Tue, Oct 24, 2006 at 08:07:20AM -0800, John P. Mitchell wrote:
> Found another one:
>
> http://user-mode-linux.sourceforge.net/help-kernel-v1.html
> The bullet point is "protect kernel memory from userspace"
Oops, very obsolete.
That's not an issue any more.
Jeff,
On Tue, 24 Oct 2006, Jeff Dike wrote:
> On Tue, Oct 24, 2006 at 06:51:39AM -0800, John P. Mitchell wrote:
>> I have been reading about UML on the UML Kernel Home Page. I have
>> found several references to security issues such as the host system being
>> accesible from the guest system
Jeff,
Thanks for the response.
On Tue, 24 Oct 2006, Jeff Dike wrote:
> On Tue, Oct 24, 2006 at 06:51:39AM -0800, John P. Mitchell wrote:
>> I have been reading about UML on the UML Kernel Home Page. I have
>> found several references to security issues such as the host system being
>>
On Tue, Oct 24, 2006 at 06:51:39AM -0800, John P. Mitchell wrote:
> I have been reading about UML on the UML Kernel Home Page. I have
> found several references to security issues such as the host system being
> accesible from the guest system and memory not being secure between
> multple U
All,
I have been reading about UML on the UML Kernel Home Page. I have
found several references to security issues such as the host system being
accesible from the guest system and memory not being secure between
multple UML instances. Have these security issues been solved? I want to
use
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Hi Paolo,
Oupss, I 've forgotten to precise that all the tests I made under xenU
are done
without skas.
Due to stupid error, I was unable to apply your skas patch on my
2.6.16.26 xenU kernel.
Some includes file were probably missing in the
arch/i386/kernel/ptrace.c file
"error : PTRACE_FAULTIN
On certain situations where printk are embedded in spinlock protected regions
(i.e. "spin_lock(); for () { printk(); } spin_unlock(); }") I often experience
uml lockups like this one:
Program received signal SIGINT, Interrupt.
0x0813b902 in __spin_lock_debug (lock=0x81f1840) at spinlock_debug.c:1
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