Really!? I wish I had read that somewhere. Well, just retried with
another option that is there for me. It is one of the cases I detailed
before that end with error.
The full execution, right now, is:
==========================
$./linux-2.6.24-x86_64 ubda=Debian-Wheezy-AMD64-root_fs mem=128M
Core dump limits :
soft - 0
hard - NONE
Checking that ptrace can change system call numbers...OK
Checking syscall emulation patch for ptrace...OK
Checking advanced syscall emulation patch for ptrace...OK
Checking for tmpfs mount on /dev/shm...nothing mounted on /dev/shm
Checking PROT_EXEC mmap in /tmp/...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 in SKAS0 mode
Adding 2719744 bytes to physical memory to account for exec-shield gap
Aborted (core dumped)
$
==========================
Waiting for suggestions. And there are some more details in my first
message - also below in this one,
--
Balaco
On Thu, Oct 29, 2015, at 08:43, Richard Weinberger wrote:
> On Thu, Oct 29, 2015 at 12:28 PM, Balaco Baco <balacob...@imap.cc> wrote:
> > A few weeks ago, after more struggling than I expected, I was abble to
> > run UML. I recompiled the linux kernel from source; I did not use the
> > root fs files available in the website, and found a Debian that seems to
> > suit my needs.
> >
> > But yesterday I tried to execute it again, it did not work. The fact
> > that yesterday I tried it through SSH makes a difference?
> >
> > Most of the command lines I had in my Bash history (long enough to have
> > almost everything I did in the previous session with this problem). None
> > of them worked. Most of them just seg fault in the beginning of
> > execution. Error related to root fs (surprise for me!). Just two of the
> > commands I tried did not seg fault immediatelly; but they also give no
> > output, and I had to start another SSH session, at the same time, to be
> > able to kill it (since ctrl+c and any other keyboard shortcuts) would be
> > "processed" my uml. I'm not sure what to do now.
> >
> > This command line I executed right now:
> >
> > ./linux-2.6.24-x86_64 ubda=Debian-Wheezy-x86-root_fs mem=128M
>
> You cannot use i386 userspace on a x86_64 kernel.
>
> > Execute in the folder where the root fs file exists, gives ONLY this
> > output (almost immediatelly). It is through SSH. Is there a problem
> > here? I expected an user/password "screen" or anything similar.
> >
> > The whole output I have for the above command, and I will let it waiting
> > for several minutes, is:
> >
> > ===========================================
> > Core dump limits :
> > soft - 0
> > hard - NONE
> > Checking that ptrace can change system call numbers...OK
> > Checking syscall emulation patch for ptrace...OK
> > Checking advanced syscall emulation patch for ptrace...OK
> > Checking for tmpfs mount on /dev/shm...nothing mounted on /dev/shm
> > Checking PROT_EXEC mmap in /tmp/...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 in SKAS0 mode
> > Adding 29876224 bytes to physical memory to account for exec-shield gap
> > Linux version 2.6.24-g91525300-dirty (jd...@amd64.user-mode-linux.org)
> > (gcc version 4.1.1 20070105 (Red Hat 4.1.1-51)) #1 Mon Jan 28 12:03:41
> > EST 2008
> > Built 1 zonelists in Zone order, mobility grouping on. Total pages:
> > 39515
> > Kernel command line: ubda=Debian-Wheezy-x86-root_fs mem=128M root=98:0
> > PID hash table entries: 1024 (order: 10, 8192 bytes)
> > Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
> > Inode-cache hash table entries: 16384 (order: 5, 131072 bytes)
> > Memory: 122164k available
> > Mount-cache hash table entries: 256
> > Checking that host ptys support output SIGIO...Yes
> > Checking that host ptys support SIGIO on close...No, enabling workaround
> > net_namespace: 120 bytes
> > Using 2.6 host AIO
> > NET: Registered protocol family 16
> > NET: Registered protocol family 2
> > Time: itimer clocksource has been installed.
> > IP route cache hash table entries: 2048 (order: 2, 16384 bytes)
> > TCP established hash table entries: 8192 (order: 5, 131072 bytes)
> > TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
> > TCP: Hash tables configured (established 8192 bind 8192)
> > TCP reno registered
> > Checking host MADV_REMOVE support...OK
> > mconsole (version 2) initialized on
> > /home/folder/path/.uml/1DZd7v/mconsole
> > ((! the above line was manually changed for this message; and the
> > working folder is a subfolder in my home folder !))
> > VFS: Disk quotas dquot_6.5.1
> > Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
> > io scheduler noop registered
> > io scheduler anticipatory registered (default)
> > io scheduler deadline registered
> > io scheduler cfq registered
> > TCP cubic registered
> > NET: Registered protocol family 1
> > NET: Registered protocol family 17
> > Initialized stdio console driver
> > Console initialized on /dev/tty0
> > console [tty0] enabled
> > Initializing software serial port version 1
> > console [mc-1] enabled
> > ubda: unknown partition table
> > kjournald starting. Commit interval 5 seconds
> > EXT3-fs: mounted filesystem with ordered data mode.
> > VFS: Mounted root (ext3 filesystem) readonly.
> > request_module: runaway loop modprobe binfmt-464c
> > request_module: runaway loop modprobe binfmt-464c
> > request_module: runaway loop modprobe binfmt-464c
> > request_module: runaway loop modprobe binfmt-464c
> > request_module: runaway loop modprobe binfmt-464c
> >
> > ===========================================
> >
> > What do you suggest to try?
> >
> > --
> > Balaco
> >
> >
> > --
> > http://www.fastmail.com - A fast, anti-spam email service.
> >
> >
> > ------------------------------------------------------------------------------
> > _______________________________________________
> > User-mode-linux-user mailing list
> > User-mode-linux-user@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
>
>
>
> --
> Thanks,
> //richard
--
http://www.fastmail.com - Access your email from home and the web
------------------------------------------------------------------------------
_______________________________________________
User-mode-linux-user mailing list
User-mode-linux-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
