[uml-devel] Re: Bug#224431: user-mode-linux: Hangs

[Matt Zimmerman <mdz@debian.org>]

retitle 224431 Fails to start init in tt mode
thanks

On Fri, Dec 19, 2003 at 12:22:34PM +1300, Srdjan wrote:

> srdjan@nietzsche:/plato-home/srdjan/local/user-mode-linux$ linux eth0=tuntap,,,192.168.2.98
> Checking for the skas3 patch in the host...not found
> Checking for /proc/mm...not found
> tracing thread pid = 927
> Linux version 2.4.22-7um (mdz@mizar) (gcc version 2.95.4 20011002
> (Debian prerelease)) #1 Tue Dec 16 14:55:39 PST 2003
> On node 0 totalpages: 8192
> zone(0): 8192 pages.
> zone(1): 0 pages.
> zone(2): 0 pages.
> Kernel command line: eth0=tuntap,,,192.168.2.98 root=/dev/ubd0
> Calibrating delay loop... 1513.52 BogoMIPS
> Memory: 28848k available
> Dentry cache hash table entries: 4096 (order: 3, 32768 bytes)
> Inode cache hash table entries: 2048 (order: 2, 16384 bytes)
> Mount cache hash table entries: 512 (order: 0, 4096 bytes)
> Buffer cache hash table entries: 1024 (order: 0, 4096 bytes)
> Page-cache hash table entries: 8192 (order: 3, 32768 bytes)
> Checking for host processor cmov support...Yes
> Checking for host processor xmm support...No
> Checking that ptrace can change system call numbers...OK
> Checking that host ptys support output SIGIO...Yes
> Checking that host ptys support SIGIO on close...No, enabling workaround
> Checking for /dev/anon on the host...Not available (open failed with errno 2)
> POSIX conformance testing by UNIFIX
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Initializing RT netlink socket
> Starting kswapd
> VFS: Disk quotas vdquot_6.5.1
> Journalled Block Device driver loaded
> devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
> devfs: boot_options: 0x0
> pty: 256 Unix98 ptys configured
> RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
> loop: loaded (max 8 devices)
> Initializing Cryptographic API
> Initializing software serial port version 1
> mconsole (version 2) initialized on /home/srdjan/.uml/gIRhMa/mconsole

Are you able to connect to it with mconsole?

> Partition check:
>  ubda: unknown partition table
>  Initializing stdio console driver
>  Netdevice 0 : TUN/TAP backend - IP = 192.168.2.98
>  NET4: Linux TCP/IP 1.0 for NET4.0
>  IP: routing cache hash table of 512 buckets, 4Kbytes
>  TCP: Hash tables configured (established 2048 bind 2048)
>  Linux IP multicast router 0.06 plus PIM-SM
>  NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
>  VFS: Mounted root (ext2 filesystem) readonly.
> 
> And stops...

Apparently, tt mode is broken.  I use skas, which is working fine in
2.4.22-7um-1, but I can reproduce your failure with mode=tt.

What was the last version which worked for you?  The only difference in the
kernel configuration since 2.4.22-5um-1 is CONFIG_UML_REAL_TIME_CLOCK=y.

-- 
 - mdz


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