if I try to boot into an UML guest (the standard debian guest from user-mode-linux package) with
$ rootstrap root_fs or after creating the fs with $ linux single con0=fd:0,fd:1 con=pts root=/dev/root rootflags=/ rootfstype=hostfs ubd1=root_fs init=/usr/lib/rootstrap/builder devfs=nomount the boot process of tInitialized stdio console driver [...] Console initialized on /dev/tty0 Initializing software serial port version 1 ubda: unknown partition table ubdb: unknown partition table VFS: Mounted root (hostfs filesystem) readonly.he guest stops after without a login prompt. But I'm able to connect to the guest via uml_mconsole and it seems that there is no connection to the host except from con0 (which is connected to fd:0,fd:1) $ config con1 OK pts Additionally to that the guest uses 100% of my host cpu until I stop it with a halt from uml_mconsole. I also tried to use another guest, the fedora, which I found at http://user-mode-linux.sourceforge.net/new/ But starting this I again get no login prompt. I'm using an IBM Thinkpad with Pentium M and Debian Etch/testing. My kernel is vanilla 2.6.18.5 patched with linux-phc, tp-smapi, hdaps-protect and skas-patch (from the Debian linux-patch-skas package). Compiling the kernel without skas-patch doesn't help. Booting the fedora uml guest end in a kernel panic [...] Console initialized on /dev/tty0 Initializing software serial port version 1 ubda: unknown partition table kjournald starting. Commit interval 5 seconds EXT3-fs: mounted filesystem with ordered data mode. VFS: Mounted root (ext3 filesystem) readonly. mapping mmap stub failed, errno = 12 Kernel panic - not syncing: start_userspace : expected SIGSTOP, got status = 256 And the Debian uml guest shows the following output (coming back to the host-prompt afterwards) [...] Console initialized on /dev/tty0 Initializing software serial port version 1 ubda: unknown partition table ubdb: unknown partition table VFS: Mounted root (hostfs filesystem) readonly. builder running... idr_remove called for id=1 which is not allocated. 08767a10: [<0805d048>] dump_stack+0x1c/0x20 08767a28: [<08135cad>] idr_remove_warning+0x15/0x19 08767a38: [<08135d78>] sub_remove+0xc7/0xd0 08767a70: [<08135da0>] idr_remove+0x1f/0x85 08767a8c: [<0813f794>] release_dev+0x5bc/0x5de 08767b30: [<0813fa20>] tty_open+0x26a/0x2bd 08767b60: [<080b17b4>] chrdev_open+0xd1/0xf9 08767b80: [<080a946c>] __dentry_open+0xb3/0x187 08767b9c: [<080a963a>] nameidata_to_filp+0x20/0x35 08767bbc: [<080a9575>] do_filp_open+0x35/0x3e 08767c24: [<080a9817>] do_sys_open+0x3f/0xbc 08767c50: [<080a98a7>] sys_open+0x13/0x15 08767c68: [<0805eeaf>] handle_syscall+0x87/0xa0 08767cb4: [<0806d812>] userspace+0x1fc/0x240 08767cfc: [<0805ebdb>] fork_handler+0x97/0x9f 08767d1c: [<a7f70420>] 0xa7f70420 idr_remove called for id=1 which is not allocated. [...] 0892bd1c: [<a7f70420>] 0xa7f70420 idr_remove called for id=1 which is not allocated. [...] 08913d1c: [<a7f70420>] 0xa7f70420 slab error in verify_redzone_free(): cache `size-32': double free detected 08913a84: [<0805d048>] dump_stack+0x1c/0x20 08913a9c: [<080a5b39>] __slab_error+0x1e/0x23 08913ab4: [<080a70ab>] cache_free_debugcheck+0xb2/0x199 08913adc: [<080a7b43>] kfree+0x83/0xc9 08913b00: [<0811eefb>] hostfs_fill_sb_common+0xe8/0x107 08913b18: [<080afd6b>] get_sb_nodev+0x39/0x71 08913b38: [<0811ef33>] hostfs_read_sb+0x19/0x1e 08913b54: [<080afe6f>] vfs_kern_mount+0x37/0x6b 08913b7c: [<080afecd>] do_kern_mount+0x2a/0x3e 08913b9c: [<080c1e0e>] do_new_mount+0x43/0x6c 08913bbc: [<080c23d0>] do_mount+0x142/0x162 08913c38: [<080c2655>] sys_mount+0x6f/0xa9 08913c68: [<0805eeaf>] handle_syscall+0x87/0xa0 08913cb4: [<0806d812>] userspace+0x1fc/0x240 08913cfc: [<0805ebdb>] fork_handler+0x97/0x9f 08913d1c: [<a7f70420>] 0xa7f70420 087a0c40: redzone 1:0x5a2cf071, redzone 2:0x5a2cf071. mount: special device hostfs does not exist Using rootstrap module network from: /usr/lib/rootstrap/modules/network netmask: error fetching interface information: Device not found Traceback (most recent call last): File "/usr/lib/rootstrap/builder", line 93, in ? dispatch(module, modulevars) File "/usr/lib/rootstrap/builder", line 70, in dispatch raise "rootstrap: Module '%s' failed, status %d: %s" % \ rootstrap: Module 'network' failed, status 1: Operation not permitted Kernel panic - not syncing: Attempted to kill init! EIP: 0073:[<a7f70410>] CPU: 0 Not tainted ESP: 007b:7f57bf9c EFLAGS: 00000246 Not tainted EAX: ffffffda EBX: 00000001 ECX: 00001000 EDX: 4018dff4 ESI: 4018c358 EDI: 4018c358 EBP: 7f57bfc8 DS: 007b ES: 007b 08897b94: [<080701b4>] show_regs+0xb4/0xb9 08897bc0: [<0805e6a3>] panic_exit+0x25/0x3f 08897bd4: [<080806b8>] notifier_call_chain+0x1d/0x37 08897bf4: [<08080742>] atomic_notifier_call_chain+0x11/0x13 08897c08: [<08074a72>] panic+0x52/0xd3 08897c28: [<08076d5b>] do_exit+0x6b/0x37c 08897c48: [<0807712e>] sys_exit_group+0x0/0x13 08897c60: [<0807713e>] sys_exit_group+0x10/0x13 08897c6c: [<0805eeaf>] handle_syscall+0x87/0xa0 08897cb8: [<0806d812>] userspace+0x1fc/0x240 08897d00: [<0805eb12>] new_thread_handler+0x9c/0xab 08897d1c: [<a7f70420>] 0xa7f70420 Why I get no access to the login prompt to the uml guest? And why the guests are crashing without the skas-patch? What is the reason, my host-kernel? Any help would be appreciated. Regards Sten ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
