Sébastien CRAMATTE
2007-Jul-26 09:50 UTC
[Xen-users] unable to start domU under Ubuntu Feisty and Xen 3.1 : kernel panic
Hello,
I''ve customized a 2.6.20 kernel + Xen 3.1 for my P35 motherboard.
Dom0 starts correctly.
When I try to launch a DomU I obtain a kernel panic ????
Same problem with an etch or a feisty domU
Migh be this due to this error ?
... Early unpacking initramfs...<3>bad: scheduling from the idle thread!
Any ideas ?
#xm create -c etch.cfg
Using config file "/etc/xen/etch.cfg".
Started domain etch
[ 0.000000] Linux version
2.6.20-100-server-amd64-elsa (root@elsa) (gcc version 4.1.2 (Ubuntu
4.1.2-0ubuntu4)) #3 SMP Thu Jul 26 07:54:55 UTC 2007 (Ubuntu Unofficial)
[ 0.000000] Command line: root=/dev/sda1 ro ip=:1.2.3.4::::eth0:dhcp
[ 0.000000] BIOS-provided physical RAM map:
[ 0.000000] Xen: 0000000000000000 - 0000000008800000 (usable)
[ 0.000000] end_pfn_map = 34816
[ 0.000000] Zone PFN ranges:
[ 0.000000] DMA 0 -> 34816
[ 0.000000] DMA32 34816 -> 34816
[ 0.000000] Normal 34816 -> 34816
[ 0.000000] early_node_map[1] active PFN ranges
[ 0.000000] 0: 0 -> 34816
[ 3451.555218] No mptable found.
[ 3451.555463] PERCPU: Allocating 25088 bytes of per cpu data
[ 3451.555480] Built 1 zonelists. Total pages: 33217
[ 3451.555483] Kernel command line: root=/dev/sda1 ro
ip=:1.2.3.4::::eth0:dhcp
[ 3451.555948] Initializing CPU#0
[ 3451.556107] PID hash table entries: 1024 (order: 10, 8192 bytes)
[ 3451.556122] Xen reported: 2402.376 MHz processor.
[ 3451.556137] Console: colour dummy device 80x25
[ 3451.556285] Dentry cache hash table entries: 32768 (order: 6, 262144
bytes)
[ 3451.556365] Inode-cache hash table entries: 16384 (order: 5, 131072
bytes)
[ 3451.556392] Software IO TLB disabled
[ 3451.556718] Memory: 32020k/139264k available (2264k kernel code,
98892k reserved, 1202k data, 196k init)
[ 3451.683946] Calibrating delay using timer specific routine.. 4805.80
BogoMIPS (lpj=24029043)
[ 3451.684002] Security Framework v1.0.0 initialized
[ 3451.684009] SELinux: Disabled at boot.
[ 3451.684025] Mount-cache hash table entries: 256
[ 3451.684137] CPU: L1 I cache: 32K, L1 D cache: 32K
[ 3451.684143] CPU: L2 cache: 4096K
[ 3451.684151] CPU: Physical Processor ID: 0
[ 3451.684153] CPU: Processor Core ID: 1
[ 3451.684156] (SMP-)alternatives turned off
[ 3451.684221] Early unpacking initramfs...<3>bad: scheduling from the
idle thread!
[ 3451.707326]
[ 3451.707328] Call Trace:
[ 3451.707341] [<ffffffff802673b8>] __sched_text_start+0xd8/0x89d
[ 3451.707346] [<ffffffff80269aa9>] _spin_lock_irqsave+0x9/0x30
[ 3451.707351] [<ffffffff80244209>] lock_timer_base+0x29/0x60
[ 3451.707356] [<ffffffff8021f54c>] __mod_timer+0xac/0xc0
[ 3451.707361] [<ffffffff8026861a>] schedule_timeout+0x9a/0xd0
[ 3451.707367] [<ffffffff80299940>] process_timeout+0x0/0x10
[ 3451.707371] [<ffffffff80267e48>] io_schedule_timeout+0x28/0x40
[ 3451.707376] [<ffffffff802c099f>] congestion_wait+0x8f/0xc0
[ 3451.707381] [<ffffffff802a41d0>] autoremove_wake_function+0x0/0x30
[ 3451.707386] [<ffffffff8024dd31>] pdflush_operation+0x41/0xa0
[ 3451.707390] [<ffffffff802bfdde>] try_to_free_pages+0x24e/0x2c0
[ 3451.707394] [<ffffffff8021072e>] __alloc_pages+0x1de/0x300
[ 3451.707398] [<ffffffff80269b99>] _read_lock_irq+0x9/0x20
[ 3451.707402] [<ffffffff8021172f>]
generic_file_buffered_write+0x1df/0x6c0
[ 3451.707407] [<ffffffff802187c7>]
__generic_file_aio_write_nolock+0x3e7/0x470
[ 3451.707412] [<ffffffff8020add7>] kmem_cache_alloc+0x77/0x90
[ 3451.707416] [<ffffffff80224d07>] generic_file_aio_write+0x67/0xd0
[ 3451.707421] [<ffffffff8021a43f>] do_sync_write+0xcf/0x120
[ 3451.707425] [<ffffffff802a41d0>] autoremove_wake_function+0x0/0x30
[ 3451.707429] [<ffffffff80230a81>] notify_change+0x301/0x330
[ 3451.707434] [<ffffffff80218d8e>] vfs_write+0xde/0x1a0
[ 3451.707437] [<ffffffff80219873>] sys_write+0x53/0x90
[ 3451.707442] [<ffffffff8058cfa8>] do_copy+0x28/0xb0
[ 3451.707446] [<ffffffff8058a82d>] write_buffer+0x1d/0x30
[ 3451.707450] [<ffffffff8058c1d3>] unpack_to_rootfs+0xe3/0x960
[ 3451.707454] [<ffffffff8058ca9d>] early_populate_rootfs+0x4d/0x70
[ 3451.707458] [<ffffffff80587795>] start_kernel+0x245/0x260
[ 3451.707462] [<ffffffff8058712f>] _sinittext+0x12f/0x140
[ 3451.707465]
[ 3451.707475] Unable to handle kernel NULL pointer dereference at
0000000000000000 RIP:
[ 3451.707479] [<ffffffff8028c244>] dequeue_task+0x4/0x50
[ 3451.707488] PGD 0
[ 3451.707491] Oops: 0002 [1] SMP
[ 3451.707495] CPU 0
[ 3451.707498] Modules linked in:
[ 3451.707502] Pid: 0, comm: swapper Not tainted
2.6.20-100-server-amd64-elsa #3
[ 3451.707506] RIP: e030:[<ffffffff8028c244>] [<ffffffff8028c244>]
dequeue_task+0x4/0x50
[ 3451.707513] RSP: e02b:ffffffff8057f880 EFLAGS: 00010083
[ 3451.707516] RAX: 0000000000000080 RBX: ffffffff8051d5e0 RCX:
ffffffff8051d620
[ 3451.707520] RDX: ffffffff8051d5e0 RSI: 0000000000000000 RDI:
ffffffff8051d5e0
[ 3451.707524] RBP: ffffffff8057f890 R08: 0000000000001215 R09:
ffff880005fc2000
[ 3451.707528] R10: 0000000000000011 R11: ffffffff803519e0 R12:
ffff880005f838c0
[ 3451.707532] R13: 0000000000000001 R14: 00000323a9cc2661 R15:
ffffffff8057fb00
[ 3451.707539] FS: 0000000000000000(0000) GS:ffffffff80563000(0000)
knlGS:0000000000000000
[ 3451.707544] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 3451.707547] CR2: 0000000000000000 CR3: 0000000000201000 CR4:
0000000000002620
[ 3451.707551] Process swapper (pid: 0, threadinfo ffffffff8057e000,
task ffffffff8051d5e0)
[ 3451.707555] Stack: ffffffff8028c32e 000000000000000a
ffffffff8057f990 ffffffff802674d5
[ 3451.707564] 0000000000000001 0000000000000020 0000000000000000
0000000000000001
[ 3451.707571] ffffffff8051d5e0 000000ef000000ee 00000000090f2daa
ffffffff8051d7b8
[ 3451.707577] Call Trace:
[ 3451.707581] [<ffffffff8028c32e>] deactivate_task+0x1e/0x30
[ 3451.707585] [<ffffffff802674d5>] __sched_text_start+0x1f5/0x89d
[ 3451.707589] [<ffffffff80269aa9>] _spin_lock_irqsave+0x9/0x30
[ 3451.707593] [<ffffffff80244209>] lock_timer_base+0x29/0x60
[ 3451.707597] [<ffffffff8021f54c>] __mod_timer+0xac/0xc0
[ 3451.707602] [<ffffffff8026861a>] schedule_timeout+0x9a/0xd0
[ 3451.707606] [<ffffffff80299940>] process_timeout+0x0/0x10
[ 3451.707610] [<ffffffff80267e48>] io_schedule_timeout+0x28/0x40
[ 3451.707614] [<ffffffff802c099f>] congestion_wait+0x8f/0xc0
[ 3451.707618] [<ffffffff802a41d0>] autoremove_wake_function+0x0/0x30
[ 3451.707623] [<ffffffff8024dd31>] pdflush_operation+0x41/0xa0
[ 3451.707627] [<ffffffff802bfdde>] try_to_free_pages+0x24e/0x2c0
[ 3451.707631] [<ffffffff8021072e>] __alloc_pages+0x1de/0x300
[ 3451.707635] [<ffffffff80269b99>] _read_lock_irq+0x9/0x20
[ 3451.707639] [<ffffffff8021172f>]
generic_file_buffered_write+0x1df/0x6c0
[ 3451.707644] [<ffffffff802187c7>]
__generic_file_aio_write_nolock+0x3e7/0x470
[ 3451.707648] [<ffffffff8020add7>] kmem_cache_alloc+0x77/0x90
[ 3451.707653] [<ffffffff80224d07>] generic_file_aio_write+0x67/0xd0
[ 3451.707657] [<ffffffff8021a43f>] do_sync_write+0xcf/0x120
[ 3451.707662] [<ffffffff802a41d0>] autoremove_wake_function+0x0/0x30
[ 3451.707666] [<ffffffff80230a81>] notify_change+0x301/0x330
[ 3451.707670] [<ffffffff80218d8e>] vfs_write+0xde/0x1a0
[ 3451.707674] [<ffffffff80219873>] sys_write+0x53/0x90
[ 3451.707678] [<ffffffff8058cfa8>] do_copy+0x28/0xb0
[ 3451.707681] [<ffffffff8058a82d>] write_buffer+0x1d/0x30
[ 3451.707685] [<ffffffff8058c1d3>] unpack_to_rootfs+0xe3/0x960
[ 3451.707689] [<ffffffff8058ca9d>] early_populate_rootfs+0x4d/0x70
[ 3451.707693] [<ffffffff80587795>] start_kernel+0x245/0x260
[ 3451.707697] [<ffffffff8058712f>] _sinittext+0x12f/0x140
[ 3451.707700]
[ 3451.707702]
[ 3451.707702] Code: 83 2e 01 55 48 8b 57 40 48 8b 41 08 48 89 e5 48 89
10 48 89
[ 3451.707721] RIP [<ffffffff8028c244>] dequeue_task+0x4/0x50
[ 3451.707726] RSP <ffffffff8057f880>
[ 3451.707729] CR2: 0000000000000000
[ 3451.707731] <0>Kernel panic - not syncing: Attempted to kill the
idle task!
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