This may be a simple question but I can't figure out what's wrong from the error messages and found nothing useful googling.
I can start uml with the Fedora guest root fs from http://user-mode-linux.sourceforge.net/ like this: ./linux-2.6.22-rc2 mem=128M ubda=FedoraCore5-x86-root_fs umid=fedora1 However, when I try to specify a cow file the boot is unsuccessful: ./linux-2.6.22-rc2 mem=128M ubda=cow1,FedoraCore5-x86-root_fs umid=fedora1 The file cow1 does not exist but it is created. Here is the output when I issue the command: [EMAIL PROTECTED]:uml$ ./linux-2.6.22-rc2 mem=128M ubda=cow1,FedoraCore5-x86-root_fs umid=fedora1 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...OK Checking PROT_EXEC mmap in /dev/shm/...OK 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 Linux version 2.6.22-rc2 ([EMAIL PROTECTED]) (gcc version 4.1.1 20070 105 (Red Hat 4.1.1-51)) #342 Wed May 23 11:56:49 EDT 2007 Built 1 zonelists. Total pages: 32512 Kernel command line: mem=128M ubda=cow1,FedoraCore5-x86-root_fs root=98:0 PID hash table entries: 512 (order: 9, 2048 bytes) Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) Memory: 126832k available Mount-cache hash table entries: 512 Checking for host processor cmov support...Yes Checking for host processor xmm support...No Checking that host ptys support output SIGIO...Yes Checking that host ptys support SIGIO on close...No, enabling workaround Using 2.6 host AIO NET: Registered protocol family 16 NET: Registered protocol family 2 IP route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP established hash table entries: 4096 (order: 3, 32768 bytes) TCP bind hash table entries: 4096 (order: 2, 16384 bytes) TCP: Hash tables configured (established 4096 bind 4096) TCP reno registered Checking host MADV_REMOVE support...OK mconsole (version 2) initialized on /home/martin/.uml/fedora1/mconsole Host TLS support detected Detected host type: i386 VFS: Disk quotas dquot_6.5.1 Dquot-cache hash table entries: 1024 (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 Initializing software serial port version 1 Creating "cow1" as COW file for "FedoraCore5-x86-root_fs" ubda: unknown partition table kjournald starting. Commit interval 5 seconds EXT3-fs: mounted filesystem with ordered data mode. VFS: Mounted root (ext3 filesystem) readonly. Kernel panic - not syncing: Operation too long EIP: 0073:[<400b60a3>] CPU: 0 Not tainted ESP: 007b:bf6e9a0c EFLAGS: 00010297 Not tainted EAX: 00000073 EBX: 401aaff4 ECX: 00000073 EDX: 400b63be ESI: 400b63be EDI: 4007697d EBP: bf6ea000 DS: 007b ES: 007b 087f4c2c: [<08069628>] show_regs+0xb4/0xb9 087f4c58: [<08057ca8>] panic_exit+0x25/0x3f 087f4c6c: [<08078720>] notifier_call_chain+0x21/0x46 087f4c8c: [<080787bb>] __atomic_notifier_call_chain+0x17/0x19 087f4ca8: [<080787d2>] atomic_notifier_call_chain+0x15/0x17 087f4cc4: [<0806daba>] panic+0x52/0xdd 087f4ce4: [<0805f8b3>] cowify_req+0x38/0xd9 087f4d04: [<0805fa03>] prepare_request+0xaf/0xba 087f4d30: [<0805faba>] do_ubd_request+0xac/0x13a 087f4d64: [<08117f46>] __generic_unplug_device+0x20/0x26 087f4d74: [<08117f5c>] generic_unplug_device+0x10/0x18 087f4d80: [<08117f77>] blk_backing_dev_unplug+0x13/0x16 087f4d8c: [<080bfc4c>] block_sync_page+0x32/0x36 087f4d9c: [<0808ab9a>] sync_page+0x31/0x3b 087f4da8: [<08181b74>] __wait_on_bit_lock+0x2f/0x5a 087f4dc4: [<0808b132>] __lock_page+0x54/0x5d 087f4dfc: [<0808be77>] filemap_nopage+0x1c8/0x25a 087f4e28: [<080955a9>] do_no_page+0x6f/0x272 087f4e60: [<08095954>] __handle_mm_fault+0xa7/0x180 087f4e90: [<0805767a>] handle_page_fault+0xe2/0x1c2 087f4ec4: [<080578c0>] segv+0xaa/0x250 087f4f78: [<08057811>] segv_handler+0x55/0x5a 087f4f98: [<08066c6b>] userspace+0x120/0x180 087f4fe8: [<080580b0>] new_thread_handler+0x72/0x7e 087f4ffc: [<a55a5a5a>] 0xa55a5a5a Segmentation fault Please let me know what's going wrong. - Martin ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
