Hi All, I am new to UML and doing it for the first time. When I start the UML ./linux it is panicing. I am not getting what I did wrong.
So I am attaching all the steps I did please inform me if any thing is missing or if I have done something wrong. Please help. Thanks and Regards, Prasad. I am using 2.6.20 kernel on i386 machine and OS installed is Ubuntu. Steps I did. ************ make menuconfig ARCH=um make ARCH=um a large linux executable was created. Creating and mounting root file system --------------------------------------- dd if=/dev/zero of=my-root_fs count=1 bs=1k seek=$[2*1024*1024] mkreiserfs -f my-root_fs mount -o loop my-root_fs /mnt Installing modules in the root file system ------------------------------------------- make modules_install INSTALL_MOD_PATH=/home/prasad/uml/linux-2.6.20/mnt/ ARCH=um Unmount the root file system --------------------------- umount mnt/ Ran UML --> which panicked ------- ./linux ubda=my-root_fs Is anything missing? [EMAIL PROTECTED]:/home/prasad/uml/linux-2.6.20# ./linux ubda=my-root_fs 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 - PTRACE_FAULTINFO...not found - PTRACE_LDT...not found UML running in SKAS0 mode Checking that ptrace can change system call numbers...OK Checking syscall emulation patch for ptrace...OK Checking advanced syscall emulation patch for ptrace...OK Using a channel type which is configured out of UML Using a channel type which is configured out of UML Using a channel type which is configured out of UML Using a channel type which is configured out of UML Using a channel type which is configured out of UML Using a channel type which is configured out of UML Using a channel type which is configured out of UML Using a channel type which is configured out of UML Using a channel type which is configured out of UML Using a channel type which is configured out of UML Using a channel type which is configured out of UML Using a channel type which is configured out of UML Using a channel type which is configured out of UML Using a channel type which is configured out of UML Using a channel type which is configured out of UML [42949372.960000] Linux version 2.6.20 ([EMAIL PROTECTED]) (gcc version 4.1.2 20060928 (prerelease) (Ubuntu 4.1.1-13ubuntu5)) #1 Thu Mar 15 21:18:38 IST 2007 [42949372.960000] Built 1 zonelists. Total pages: 8128 [42949372.960000] Kernel command line: ubda=my-root_fs root=98:0 [42949372.960000] PID hash table entries: 128 (order: 7, 512 bytes) [42949372.960000] ------------------------ [42949372.960000] | Locking API testsuite: [42949372.960000] ---------------------------------------------------------------------------- [42949372.960000] | spin |wlock |rlock |mutex | wsem | rsem | [42949372.960000] -------------------------------------------------------------------------- [42949372.960000] A-A deadlock:failed|failed| ok |failed|failed|failed| [42949372.960000] A-B-B-A deadlock:failed|failed| ok |failed|failed|failed| [42949372.960000] A-B-B-C-C-A deadlock:failed|failed| ok |failed|failed|failed| [42949372.960000] A-B-C-A-B-C deadlock:failed|failed| ok |failed|failed|failed| [42949372.960000] A-B-B-C-C-D-D-A deadlock:failed|failed| ok |failed|failed|failed| [42949372.960000] A-B-C-D-B-D-D-A deadlock:failed|failed| ok |failed|failed|failed| [42949372.960000] A-B-C-D-B-C-D-A deadlock:failed|failed| ok |failed|failed|failed| [42949372.960000] double unlock: ok | ok |failed| ok |failed|failed| [42949372.960000] initialize held:failed|failed|failed|failed|failed|failed| [42949372.960000] bad unlock order: ok | ok | ok | ok | ok | ok | [42949372.960000] -------------------------------------------------------------------------- [42949372.960000] recursive read-lock: | ok | |failed| [42949372.960000] recursive read-lock #2: | ok | |failed| [42949372.960000] mixed read-write-lock: |failed| |failed| [42949372.960000] mixed write-read-lock: |failed| |failed| [42949372.960000] -------------------------------------------------------------------------- [42949372.960000] hard-irqs-on + irq-safe-A/12:failed|failed| ok | [42949372.960000] soft-irqs-on + irq-safe-A/12:failed|failed| ok | [42949372.960000] hard-irqs-on + irq-safe-A/21:failed|failed| ok | [42949372.960000] soft-irqs-on + irq-safe-A/21:failed|failed| ok | [42949372.960000] sirq-safe-A => hirqs-on/12:failed|failed| ok | [42949372.960000] sirq-safe-A => hirqs-on/21:failed|failed| ok | [42949372.960000] hard-safe-A + irqs-on/12:failed|failed| ok | [42949372.960000] soft-safe-A + irqs-on/12:failed|failed| ok | [42949372.960000] hard-safe-A + irqs-on/21:failed|failed| ok | [42949372.960000] soft-safe-A + irqs-on/21:failed|failed| ok | [42949372.960000] hard-safe-A + unsafe-B #1/123:failed|failed| ok | [42949372.960000] soft-safe-A + unsafe-B #1/123:failed|failed| ok | [42949372.960000] hard-safe-A + unsafe-B #1/132:failed|failed| ok | [42949372.960000] soft-safe-A + unsafe-B #1/132:failed|failed| ok | [42949372.960000] hard-safe-A + unsafe-B #1/213:failed|failed| ok | [42949372.960000] soft-safe-A + unsafe-B #1/213:failed|failed| ok | [42949372.960000] hard-safe-A + unsafe-B #1/231:failed|failed| ok | [42949372.960000] soft-safe-A + unsafe-B #1/231:failed|failed| ok | [42949372.960000] hard-safe-A + unsafe-B #1/312:failed|failed| ok | [42949372.960000] soft-safe-A + unsafe-B #1/312:failed|failed| ok | [42949372.960000] hard-safe-A + unsafe-B #1/321:failed|failed| ok | [42949372.960000] soft-safe-A + unsafe-B #1/321:failed|failed| ok | [42949372.960000] hard-safe-A + unsafe-B #2/123:failed|failed| ok | [42949372.960000] soft-safe-A + unsafe-B #2/123:failed|failed| ok | [42949372.960000] hard-safe-A + unsafe-B #2/132:failed|failed| ok | [42949372.960000] soft-safe-A + unsafe-B #2/132:failed|failed| ok | [42949372.960000] hard-safe-A + unsafe-B #2/213:failed|failed| ok | [42949372.960000] soft-safe-A + unsafe-B #2/213:failed|failed| ok | [42949372.960000] hard-safe-A + unsafe-B #2/231:failed|failed| ok | [42949372.960000] soft-safe-A + unsafe-B #2/231:failed|failed| ok | [42949372.960000] hard-safe-A + unsafe-B #2/312:failed|failed| ok | [42949372.960000] soft-safe-A + unsafe-B #2/312:failed|failed| ok | [42949372.960000] hard-safe-A + unsafe-B #2/321:failed|failed| ok | [42949372.960000] soft-safe-A + unsafe-B #2/321:failed|failed| ok | [42949372.960000] hard-irq lock-inversion/123:failed|failed| ok | [42949372.960000] soft-irq lock-inversion/123:failed|failed| ok | [42949372.960000] hard-irq lock-inversion/132:failed|failed| ok | [42949372.960000] soft-irq lock-inversion/132:failed|failed| ok | [42949372.960000] hard-irq lock-inversion/213:failed|failed| ok | [42949372.960000] soft-irq lock-inversion/213:failed|failed| ok | [42949372.960000] hard-irq lock-inversion/231:failed|failed| ok | [42949372.960000] soft-irq lock-inversion/231:failed|failed| ok | [42949372.960000] hard-irq lock-inversion/312:failed|failed| ok | [42949372.960000] soft-irq lock-inversion/312:failed|failed| ok | [42949372.960000] hard-irq lock-inversion/321:failed|failed| ok | [42949372.960000] soft-irq lock-inversion/321:failed|failed| ok | [42949372.960000] hard-irq read-recursion/123: ok | [42949372.960000] soft-irq read-recursion/123: ok | [42949372.960000] hard-irq read-recursion/132: ok | [42949372.960000] soft-irq read-recursion/132: ok | [42949372.960000] hard-irq read-recursion/213: ok | [42949372.960000] soft-irq read-recursion/213: ok | [42949372.960000] hard-irq read-recursion/231: ok | [42949372.960000] soft-irq read-recursion/231: ok | [42949372.960000] hard-irq read-recursion/312: ok | [42949372.960000] soft-irq read-recursion/312: ok | [42949372.960000] hard-irq read-recursion/321: ok | [42949372.960000] soft-irq read-recursion/321: ok | [42949372.960000] -------------------------------------------------------- [42949372.960000] 142 out of 218 testcases failed, as expected. | [42949372.960000] ---------------------------------------------------- [42949372.960000] Dentry cache hash table entries: 4096 (order: 2, 16384 bytes) [42949372.960000] Inode-cache hash table entries: 2048 (order: 1, 8192 bytes) [42949372.960000] Memory: 16224k available [42949373.250000] Mount-cache hash table entries: 512 [42949373.250000] Checking for host processor cmov support...Yes [42949373.250000] Checking for host processor xmm support...No [42949373.250000] Checking that host ptys support output SIGIO...Yes [42949373.250000] Checking that host ptys support SIGIO on close...No, enabling workaround [42949373.250000] Using 2.6 host AIO [42949373.250000] NET: Registered protocol family 16 [42949373.280000] NET: Registered protocol family 2 [42949373.410000] IP route cache hash table entries: 1024 (order: 0, 4096 bytes) [42949373.410000] TCP established hash table entries: 1024 (order: 2, 16384 bytes) [42949373.410000] TCP bind hash table entries: 512 (order: 1, 10240 bytes) [42949373.410000] TCP: Hash tables configured (established 1024 bind 512) [42949373.410000] TCP reno registered [42949373.450000] Checking host MADV_REMOVE support...MADV_REMOVE failed, err = -22 [42949373.450000] Can't release memory to the host - memory hotplug won't be supported [42949373.450000] mconsole (version 2) initialized on /root/.uml/Mw2JMK/mconsole [42949373.450000] Host TLS support detected [42949373.450000] Detected host type: i386 [42949373.450000] Initializing RT-Tester: OK [42949373.450000] io scheduler noop registered [42949373.450000] io scheduler anticipatory registered (default) [42949373.450000] io scheduler deadline registered [42949373.460000] io scheduler cfq registered [42949373.810000] RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize [42949373.820000] loop: loaded (max 8 devices) [42949373.820000] netconsole: not configured, aborting [42949373.820000] TCP cubic registered [42949373.820000] NET: Registered protocol family 1 [42949373.820000] NET: Registered protocol family 17 [42949373.830000] Initialized stdio console driver [42949373.830000] parse_chan_pair failed for device 1 [42949373.830000] parse_chan_pair failed for device 2 [42949373.830000] parse_chan_pair failed for device 3 [42949373.830000] parse_chan_pair failed for device 4 [42949373.830000] parse_chan_pair failed for device 5 [42949373.830000] parse_chan_pair failed for device 6 [42949373.830000] parse_chan_pair failed for device 7 [42949373.830000] parse_chan_pair failed for device 8 [42949373.830000] parse_chan_pair failed for device 9 [42949373.830000] parse_chan_pair failed for device 10 [42949373.830000] parse_chan_pair failed for device 11 [42949373.830000] parse_chan_pair failed for device 12 [42949373.830000] parse_chan_pair failed for device 13 [42949373.830000] parse_chan_pair failed for device 14 [42949373.830000] parse_chan_pair failed for device 15 [42949373.830000] Console initialized on /dev/tty0 [42949373.860000] VFS: Cannot open root device "98:0" or unknown-block(98,0) [42949373.860000] Please append a correct "root=" boot option [42949373.860000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(98,0) [42949373.860000] [42949373.860000] EIP: 0073:[<ffffe410>] CPU: 0 Not tainted ESP: 007b:b79abfa8 EFLAGS: 00200246 [42949373.860000] Not tainted [42949373.860000] EAX: 00000000 EBX: 00004525 ECX: 00000013 EDX: 00004525 [42949373.860000] ESI: 00004521 EDI: 00000011 EBP: b79abfc4 DS: 007b ES: 007b [42949373.860000] 0949fe88: [<080929d3>] show_regs+0x153/0x166 [42949373.860000] 0949feb4: [<0807754b>] panic_exit+0x62/0xa6 [42949373.860000] 0949fec8: [<080c3163>] notifier_call_chain+0x3e/0x76 [42949373.860000] 0949fee8: [<080c32b0>] atomic_notifier_call_chain+0x28/0x38 [42949373.860000] 0949fefc: [<080a103d>] panic+0xd5/0x215 [42949373.860000] 0949ff1c: [<0804aa61>] mount_block_root+0x222/0x254 [42949373.860000] 0949ff70: [<0804aced>] mount_root+0xb3/0xc9 [42949373.860000] 0949ff94: [<0804afa3>] prepare_namespace+0x2a0/0x312 [42949373.860000] 0949ffa4: [<0806c6e9>] init+0x1d8/0x3b5 [42949373.860000] 0949ffb4: [<08086e80>] run_kernel_thread+0x90/0xa6 [42949373.860000] 0949ffe0: [<08078273>] new_thread_handler+0x132/0x1ad [42949373.860000] 0949fffc: [<a55a5a5a>] 0xa55a5a5a [42949373.860000] [42949373.860000] <3>Trying to free already-free IRQ 2 [42949373.860000] Trying to free already-free IRQ 3 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