[Xen-devel] Kernel crash

[Tobias Hunger <tobias@xxxxxxxxxxx>]

Hello!

I am trying to build a custom kernel for myself that is supposed to run a 
network driver domain. To do so I configured it with the attached settings. 

Starting the kernel in a VM I get the following output using xen unstable from 
this morning:

Using config file "/etc/xen/yyyy".
Started domain yyyy, console on port 9603
************ REMOTE CONSOLE: CTRL-] TO QUIT ********
Linux version 2.6.10-xen1 (root@xxxx) (gcc version 3.3.5 (Debian 1:3.3.5-6)) 
#2 Tue Jan 18 20:58:48 CET 2005
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000002000000 (usable)
32MB LOWMEM available.
DMI not present.
Built 1 zonelists
Kernel command line:  root=/dev/hda1 ro
Initializing CPU#0
PID hash table entries: 256 (order: 8, 4096 bytes)
Xen reported: 1668.744 MHz processor.
Using tsc for high-res timesource
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 30232k/32768k available (1455k kernel code, 2488k reserved, 355k data, 
16k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 256K (64 bytes/line)
CPU: AMD Athlon(tm) XP 2000+ stepping 01
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... disabled
NET: Registered protocol family 16
xen_mem: Initialising balloon driver.
Initializing Cryptographic API
i8042.c: Can't read CTR while initializing i8042.
io scheduler noop registered
io scheduler anticipatory registered
elevator: using anticipatory as default io scheduler
Floppy drive(s): fd0 is unknown type 15 (usb?), fd1 is unknown type 15 (usb?)
floppy0: no floppy controllers found
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
Couldn't register Xen virtual console driver as tty
Event-channel device installed.
xen_blk: Initialising virtual block device driver
mice: PS/2 mouse device common for all mice
device-mapper: 4.3.0-ioctl (2004-09-30) initialised: dm-devel@xxxxxxxxxx
NET: Registered protocol family 2
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 2048 bind 4096)
NET: Registered protocol family 1
NET: Registered protocol family 17
ReiserFS: hda1: found reiserfs format "3.6" with standard journal
ReiserFS: hda1: using ordered data mode
ReiserFS: hda1: journal params: device hda1, size 8192, journal first block 8, 
max trans len 1024, max batch 900, max commit age 30, max trans age 30
ReiserFS: hda1: checking transaction log (hda1)
ReiserFS: hda1: Using r5 hash to sort names
VFS: Mounted root (reiserfs filesystem) readonly.
Freeing unused kernel memory: 116k freed
Unable to handle kernel NULL pointer dereference at virtual address 00000000
 printing eip:
c01c9cf6
*pde = ma 00000000 pa 55555000
 [<c01f8abf>] __xencons_tx_flush+0x1ef/0x270
 [<c011a323>] console_device+0x33/0x50
 [<c01cacc5>] tty_open+0x95/0x2b0
 [<c01cac30>] tty_open+0x0/0x2b0
 [<c015c506>] chrdev_open+0xa6/0x170
 [<c01527b9>] dentry_open+0xf9/0x170
 [<c01526b2>] filp_open+0x62/0x70
 [<c0152869>] get_unused_fd+0x39/0xe0
 [<c01529d9>] sys_open+0x49/0x90
 [<c0105070>] init+0x0/0x110
 [<c01050f0>] init+0x80/0x110
 [<c0107775>] kernel_thread_helper+0x5/0x10
Oops: 0000 [#1]
PREEMPT 
CPU:    0
EIP:    0061:[<c01c9cf6>]    Not tainted VLI
EFLAGS: 00010246   (2.6.10-xen1) 
EIP is at init_dev+0x36/0x5c0
eax: 00000000   ebx: c0322200   ecx: ffffffed   edx: 00000000
esi: c0322200   edi: 00000001   ebp: 00500001   esp: c0099eb8
ds: 007b   es: 007b   ss: 0069
Process swapper (pid: 1, threadinfo=c0098000 task=c000b9e0)
Stack: c035decc c02fb1d2 c0099f06 c01f8abf c0099ed8 00000000 00000006 00000003 
       c029bfe0 c0322200 c0099f18 00500001 c011a323 c029bfe0 c0322200 c036f9c0 
       00000001 00500001 c01cacc5 c0322200 00000000 c0099f14 00029f3c c02f7700 
Call Trace:
 [<c01f8abf>] __xencons_tx_flush+0x1ef/0x270
 [<c011a323>] console_device+0x33/0x50
 [<c01cacc5>] tty_open+0x95/0x2b0
 [<c01cac30>] tty_open+0x0/0x2b0
 [<c015c506>] chrdev_open+0xa6/0x170
 [<c01527b9>] dentry_open+0xf9/0x170
 [<c01526b2>] filp_open+0x62/0x70
 [<c0152869>] get_unused_fd+0x39/0xe0
 [<c01529d9>] sys_open+0x49/0x90
 [<c0105070>] init+0x0/0x110
 [<c01050f0>] init+0x80/0x110
 [<c0107775>] kernel_thread_helper+0x5/0x10
Code: c7 44 24 14 00 00 00 00 ff 0d ac 6d 29 c0 0f 88 ef 2f 00 00 f6 86 9c 00 
00 00 10 0f 85 5b 05 00 00 8b 86 ac 00 00 00 8b 54 24 50 <8b> 1c 90 85 db 74 
75 8b 83 b8 00 00 00 a8 80 75 61 81 7e 74 04 
 <0>Kernel panic - not syncing: Attempted to kill init!
 <0>Rebooting in 1 seconds..
************ REMOTE CONSOLE EXITED *****************

Any ideas?

-- 
Gruss,
Tobias

------------------------------------------------------------
Tobias Hunger           The box said: 'Windows 95 or better'
tobias@xxxxxxxxxxx                     So I installed Linux.
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