[Xen-devel] dom0 kernel crashes with kernel panic during boot

[Jan Kundrat <jan.kundrat@xxxxxx>]

Hi there,
I've just built xen & dom0 kernel from gentoo ebuilds (bugs.gentoo.org), 
but my dom0 kernel crashes during boot.
Any help is appreciated. Console log, grub.conf and .config are included, 
machine is celeron/466, 128MB of RAM.

Console log:

Linux version 2.6.9-xen0 (root@zirafa) (gcc version 3.3.4 20040623 (Gentoo 
Linux 3.3.4-r1, ssp-3.3.2-2, pie-8.7.6)) #2 Sun Nov 14 19:19:39 CET 2004
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000002000000 (usable)
32MB LOWMEM available.
DMI not present.
Built 1 zonelists
Kernel command line: root=/dev/hda3 ro console=ttyS0,115200n8
Initializing CPU#0
PID hash table entries: 256 (order: 8, 4096 bytes)
Xen reported: 467.733 MHz processor.
Using tsc for high-res timesource
Console: colour VGA+ 80x25
Linux version 2.6.9-xen0 (root@zirafa) (gcc version 3.3.4 20040623 (Gentoo 
Linux 3.3.4-r1, ssp-3.3.2-2, pie-8.7.6)) #2 Sun Nov 14 19:19:39 CET 2004
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000002000000 (usable)
32MB LOWMEM available.
DMI not present.
Built 1 zonelists
Kernel command line: root=/dev/hda3 ro console=ttyS0,115200n8
Initializing CPU#0
PID hash table entries: 256 (order: 8, 4096 bytes)
Xen reported: 467.733 MHz processor.
Using tsc for high-res timesource
Console: colour VGA+ 80x25
Unable to handle kernel NULL pointer dereference at virtual address 
00000000
 printing eip:
c010ad74
*pde = ma 00000000 pa 55555000
 [<c0107a1b>] evtchn_do_upcall+0xab/0x110

 [<c010c8bb>] hypervisor_callback+0x33/0x49

 [<c010796a>] force_evtchn_callback+0xa/0x10

 [<c02f0760>] start_kernel+0x170/0x190

 [<c02f0350>] unknown_bootoption+0x0/0x180

Oops: 0002 [#1]
PREEMPT
Modules linked in:
CPU:    0
EIP:    0061:[<c010ad74>]    Not tainted VLI
EFLAGS: 00211286   (2.6.9-xen0)
EIP is at do_IRQ+0x94/0x1b0
eax: c02b1d60   ebx: 00000ff4   ecx: c02b4880   edx: c02b4880
esi: 00000000   edi: c02ef000   ebp: c02eb800   esp: c02eff5c
ds: 0069   es: 0069   ss: 0069
Process swapper (pid: 0, threadinfo=c02ef000 task=c02b1d60)
Stack: 00000080 c011cbde c031ed40 c02b4880 00000008 00000000 fbffc000 
00000000
       c0107a1b 00000080 c02effa8 00000001 c02effa8 00000000 c033e200 
c0310220
       c02ef000 c010c8bb c02effa8 00000000 c02b5b84 00000000 c033e200 
c0310220
Call Trace:
 [<c011cbde>] __call_console_drivers+0x5e/0x60

 [<c0107a1b>] evtchn_do_upcall+0xab/0x110

 [<c010c8bb>] hypervisor_callback+0x33/0x49

 [<c010796a>] force_evtchn_callback+0xa/0x10

 [<c02f0760>] start_kernel+0x170/0x190

 [<c02f0350>] unknown_bootoption+0x0/0x180

Code: 0c 85 c9 74 7c 89 df 8b 35 00 d0 30 c0 ff 4f 14 8b 47 08 a8 08 0f 85 
16 01 00 00 39 f7 0f 84 ed 00 00 00 8b 07 8d 9e f4 0f 00 00 <89> 06 89 e0 
89 46 30 8b 54 24 0c 89 96 fc 0f 00 00 8b 44 24 28
 <0>Kernel panic - not syncing: Fatal exception in interrupt

------------------------- end of log ----------------

my grub.conf looks like:
--- begin ---
title Xen 2.0 / XenLinux 2.6.9
kernel (hd0,0)/xen.gz dom0_mem=32768 com0=115200,8n1
module (hd0,0)/vmlinuz-2.6.9-xen0 root=/dev/hda3 ro console=ttyS0,115200n8
--- end ---

and .config of dom0 (cleaned up by `grep -Ev "^#" 
/usr/src/linux-2.6.9-xen0/.config | cat -s`):

--- begin ---
CONFIG_XEN=y
CONFIG_ARCH_XEN=y
CONFIG_NO_IDLE_HZ=y

CONFIG_XEN_PRIVILEGED_GUEST=y
CONFIG_XEN_PHYSDEV_ACCESS=y
CONFIG_XEN_BLKDEV_BACKEND=y
CONFIG_XEN_NETDEV_BACKEND=y
CONFIG_XEN_WRITABLE_PAGETABLES=y
CONFIG_XEN_SCRUB_PAGES=y
CONFIG_FOREIGN_PAGES=y
CONFIG_HAVE_ARCH_DEV_ALLOC_SKB=y
CONFIG_X86=y

CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN=y
CONFIG_BROKEN_ON_SMP=y

CONFIG_LOCALVERSION=""
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
CONFIG_SYSCTL=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_HOTPLUG=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_KALLSYMS=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
CONFIG_SHMEM=y

CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_OBSOLETE_MODPARM=y
CONFIG_KMOD=y

CONFIG_XENARCH="i386"
CONFIG_MMU=y
CONFIG_UID16=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_MPENTIUMII=y
CONFIG_X86_CMPXCHG=y
CONFIG_X86_XADD=y
CONFIG_X86_L1_CACHE_SHIFT=5
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_X86_GOOD_APIC=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_PREEMPT=y
CONFIG_X86_CPUID=y

CONFIG_NOHIGHMEM=y
CONFIG_HAVE_DEC_LOCK=y

CONFIG_PCI=y
CONFIG_PCI_DIRECT=y

CONFIG_EARLY_PRINTK=y
CONFIG_4KSTACKS=y
CONFIG_X86_BIOS_REBOOT=y
CONFIG_X86_STD_RESOURCES=y
CONFIG_PC=y

CONFIG_BINFMT_ELF=y

CONFIG_PREVENT_FIRMWARE_BUILD=y

CONFIG_BLK_CPQ_CISS_DA=y
CONFIG_BLK_DEV_LOOP=m

CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y

CONFIG_BLK_DEV_IDEDISK=y
CONFIG_BLK_DEV_IDECD=m
CONFIG_IDE_TASK_IOCTL=y

CONFIG_IDE_GENERIC=y
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_IDEDMA_PCI_AUTO=y
CONFIG_BLK_DEV_PIIX=y
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_IDEDMA_AUTO=y

CONFIG_NET=y

CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y

CONFIG_NETFILTER=y
CONFIG_BRIDGE_NETFILTER=y

CONFIG_IP_NF_IPTABLES=m

CONFIG_BRIDGE=y

CONFIG_NETDEVICES=y

CONFIG_NET_ETHERNET=y
CONFIG_MII=y

CONFIG_NET_TULIP=y
CONFIG_TULIP=y
CONFIG_NET_PCI=y
CONFIG_PCNET32=y
CONFIG_8139TOO=m
CONFIG_8139TOO_PIO=y

CONFIG_INPUT=y

CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768

CONFIG_SOUND_GAMEPORT=y
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y

CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y

CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y

CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=2

CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256

CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y

CONFIG_EXT2_FS=y
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_JBD=y
CONFIG_FS_MBCACHE=y
CONFIG_FS_POSIX_ACL=y

CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_ZISOFS_FS=m

CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"

CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_SYSFS=y
CONFIG_DEVFS_FS=y
CONFIG_DEVFS_MOUNT=y
CONFIG_TMPFS=y
CONFIG_RAMFS=y

CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
CONFIG_NFSD=m
CONFIG_NFSD_V3=y
CONFIG_NFSD_TCP=y
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=m
CONFIG_SUNRPC=m

CONFIG_MSDOS_PARTITION=y

CONFIG_NLS=m
CONFIG_NLS_DEFAULT="utf-8"
CONFIG_NLS_CODEPAGE_437=m
CONFIG_NLS_CODEPAGE_850=m
CONFIG_NLS_CODEPAGE_852=m
CONFIG_NLS_CODEPAGE_1250=m
CONFIG_NLS_ISO8859_1=m
CONFIG_NLS_ISO8859_2=m
CONFIG_NLS_UTF8=m

CONFIG_CRC32=y
CONFIG_ZLIB_INFLATE=m
--- end ---

-- 
Jan Kundrat
jan.kundrat@xxxxxx



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