Hi Wido,

Good news.
Are you using LVM or loop-back devices for your DomU's?

B


On 20 May 2008, at 5:55 PM, Wido den Hollander wrote:

I am running Hardy dom0 and domU's on i386 with the proposed kernel
without any troubles at all.

This was just for the record.

--  
xen guest  kernel bug:  'kernel BUG at /build/buildd/linux-2.6.24/ 
debian/build/custom-source-xen/drivers/xen/netfront/netfront.c:785'
https://bugs.launchpad.net/bugs/218126
You received this bug notification because you are a direct subscriber
of a duplicate bug.

Status in Source Package "linux" in Ubuntu: In Progress
Status in linux in Ubuntu Hardy: In Progress

Bug description:
[EMAIL PROTECTED] ~]# xm create -c /etc/xen/pps-x12
Using config file "/etc/xen/pps-x12".
Started domain pps-x12
[    0.000000] Linux version 2.6.24-16-xen ([EMAIL PROTECTED]) (gcc  
version 4.2.3 (Ubuntu 4.2.3-2ubuntu7)) #1 SMP Thu Apr 10 14:35:03 UTC  
2008 (Ubuntu 2.6.24-4.6-generic)
[    0.000000] Command line:  root=/dev/sda1 ro console=/dev/xvc0
[    0.000000] BIOS-provided physical RAM map:
[    0.000000]  Xen: 0000000000000000 - 0000000010800000 (usable)
[    0.000000] end_pfn_map = 67584
[2311650.315719] Zone PFN ranges:
[2311650.315721]   DMA             0 ->     4096
[2311650.315724]   DMA32        4096 ->  1048576
[2311650.315725]   Normal    1048576 ->  1048576
[2311650.315727] Movable zone start PFN for each node
[2311650.315728] early_node_map[1] active PFN ranges
[2311650.315730]     0:        0 ->    67584
[2311650.326160] No mptable found.
[2311650.326947] PERCPU: Allocating 22368 bytes of per cpu data
[2311650.326972] Built 1 zonelists in Zone order, mobility grouping  
on.  Total pages: 66660
[2311650.326977] Kernel command line:  root=/dev/sda1 ro console=/dev/ 
xvc0
[2311650.327623] Initializing CPU#0
[2311650.327799] PID hash table entries: 2048 (order: 11, 16384 bytes)
[2311650.327835] Xen reported: 1992.446 MHz processor.
[    0.026270] console [xvc-1] enabled
[    0.026309] Console: colour dummy device 80x25
[    0.026603] Dentry cache hash table entries: 65536 (order: 7,  
524288 bytes)
[    0.026842] Inode-cache hash table entries: 32768 (order: 6, 262144  
bytes)
[    0.026906] Software IO TLB disabled
[    0.029575] Memory: 232180k/270336k available (2530k kernel code,  
29616k reserved, 1329k data, 220k init)
[    0.092349] Calibrating delay using timer specific routine..  
3988.62 BogoMIPS (lpj=7977259)
[    0.092429] Security Framework initialized
[    0.092441] SELinux:  Disabled at boot.
[    0.092451] AppArmor: AppArmor initialized
[    0.092456] Failure registering capabilities with primary security  
module.
[    0.092483] Mount-cache hash table entries: 256
[    0.092653] CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64  
bytes/line)
[    0.092657] CPU: L2 Cache: 1024K (64 bytes/line)
[    0.092677] SMP alternatives: switching to UP code
[    0.093284] Freeing SMP alternatives: 23k freed
[    0.093435] Early unpacking initramfs... done
[    0.112929] Brought up 1 CPUs
[    0.113630] net_namespace: 120 bytes
[    0.113635] failed to set up cpufreq notifier
[    0.132384] Time: 165:165:165  Date: 165/165/65
[    0.132421] NET: Registered protocol family 16
[    0.133845] Brought up 1 CPUs
[    0.133863] PCI: Fatal: No config space access function found
[    0.133866] PCI: setting up Xen PCI frontend stub
[    0.134578] ACPI: Interpreter disabled.
[    0.134584] Linux Plug and Play Support v0.97 (c) Adam Belay
[    0.134622] pnp: PnP ACPI: disabled
[    0.135046] xen_mem: Initialising balloon driver.
[    0.136382] Setting mem allocation to 262144 kiB
[    0.136682] PCI: System does not support PCI
[    0.136687] PCI: System does not support PCI
[    0.138848] NET: Registered protocol family 8
[    0.138853] NET: Registered protocol family 20
[    0.138936] AppArmor: AppArmor Filesystem Enabled
[    0.139338] NET: Registered protocol family 2
[    0.139351] Time: xen clocksource has been installed.
[    0.170880] IP route cache hash table entries: 4096 (order: 3,  
32768 bytes)
[    0.171086] TCP established hash table entries: 16384 (order: 6,  
262144 bytes)
[    0.171256] TCP bind hash table entries: 16384 (order: 6, 262144  
bytes)
[    0.171426] TCP: Hash tables configured (established 16384 bind  
16384)
[    0.171432] TCP reno registered
[    0.182943] checking if image is initramfs... it is
[    0.203821] Freeing initrd memory: 18972k freed
[    0.217541] audit: initializing netlink socket (disabled)
[    0.217565] audit(1208340133.904:1): initialized
[    0.217759] VFS: Disk quotas dquot_6.5.1
[    0.217786] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[    0.217873] io scheduler noop registered
[    0.217877] io scheduler anticipatory registered
[    0.217879] io scheduler deadline registered

[    0.217887] io scheduler cfq registered (default)
[    0.218105] Xen virtual console successfully installed as xvc0
[    0.218158] Event-channel device installed.
[    0.226820] Successfully initialized TPM backend driver.
[    0.237186] netfront: Initialising virtual ethernet driver.
[    0.238033] xen-vbd: registered block device major 8
[    0.267152] rtc: IRQ 8 is not free.
[    0.267256] Linux agpgart interface v0.102
[    0.267852] RAMDISK driver initialized: 16 RAM disks of 65536K size  
1024 blocksize
[    0.267934] input: Macintosh mouse button emulation as /devices/ 
virtual/input/input0
[    0.268076] PNP: No PS/2 controller found. Probing ports directly.
[    0.268920] i8042.c: No controller found.
[    0.274923] mice: PS/2 mouse device common for all mice
[    0.274961] cpuidle: using governor ladder
[    0.275048] NET: Registered protocol family 1
[    0.275120] registered taskstats version 1
[    0.275143]   Magic number: 1:252:3141
[    0.275293] /build/buildd/linux-2.6.24/debian/build/custom-source- 
xen/drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[    0.275307] Freeing unused kernel memory: 220k freed
Loading, please wait...
Begin: Loading essential drivers... ...
[    0.583333] thermal: Unknown symbol acpi_processor_set_thermal_limit
Done.
Begin: Running /scripts/init-premount ...
Done.
Begin: Mounting root file system... ...
Begin: Running /scripts/local-top ...
Done.
Begin: Waiting for root file system... ...
Done.
Begin: Running /scripts/local-premount ...
Done.
[    1.119322] kjournald starting.  Commit interval 5 seconds
[    1.119355] EXT3-fs: mounted filesystem with ordered data mode.
Begin: Running /scripts/local-bottom ...
Done.
Done.
Begin: Running /scripts/init-bottom ...
Done.
* Setting preliminary  
keymap...                                         [ OK ]
* Setting the system clock
Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access  
method.
* Unable to set System Clock to: Wed Apr 16 10:02:16 UTC 2008
* Starting basic  
networking...                                          [ OK ]
* Starting kernel event  
manager...                                      [ OK ]
* Loading hardware  
drivers...                                                   
[    4.433282] ------------[ cut here ]------------
[    4.433302] kernel BUG at /build/buildd/linux-2.6.24/debian/build/ 
custom-source-xen/drivers/xen/netfront/netfront.c:785!
[    4.433307] invalid opcode: 0000 [1] SMP
[    4.433311] CPU 0
[    4.433314] Modules linked in: evdev ext3 jbd mbcache
[    4.433322] Pid: 2329, comm: ifconfig Not tainted 2.6.24-16-xen #1
[    4.433325] RIP: e030:[<ffffffff8039aa14>]  [<ffffffff8039aa14>]  
network_alloc_rx_buffers+0x534/0x5e0
[    4.433339] RSP: e02b:ffff88000fea1d08  EFLAGS: 00010282
[    4.433342] RAX: ffff880010700580 RBX: ffff88000e58acc0 RCX:  
0000000000000000
[    4.433345] RDX: ffff88000fc38000 RSI: 0000000000000000 RDI:  
0000000000000240
[    4.433348] RBP: 0000000000000000 R08: 0000000000000011 R09:  
0000000000000000
[    4.433351] R10: 0000000000000000 R11: 0000000000000000 R12:  
ffff88000fc38700
[    4.433354] R13: 0000000000000240 R14: 0000000000000000 R15:  
ffff88000fc38868
[    4.433362] FS:  00007f281b6216e0(0000) GS:ffffffff805c6000(0000)  
knlGS:0000000000000000
[    4.433365] CS:  e033 DS: 0000 ES: 0000
[    4.433367] DR0: 0000000000000000 DR1: 0000000000000000 DR2:  
0000000000000000
[    4.433371] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:  
0000000000000000
[    4.433374] Process ifconfig (pid: 2329, threadinfo  
ffff88000fea0000, task ffff880010705800)
[    4.433377] Stack:  0000000000000000 ffff88000fc39ce0  
ffff88000fc38000 0000880000000100
[    4.433384]  00000001ffffffff ffff88000fc38740 ffff88000ee9f000  
0000000180282166
[    4.433390]  00ff880010440cc0 0000000000000000 ffff880000000000  
000000000000002d
[    4.433395] Call Trace:
[    4.433400]  [<ffffffff8039db38>] network_open+0x78/0x130
[    4.433406]  [<ffffffff803f4fe3>] dev_open+0x53/0x90
[    4.433409]  [<ffffffff803f37e2>] dev_change_flags+0x92/0x1b0
[    4.433415]  [<ffffffff80444f00>] devinet_ioctl+0x5a0/0x750
[    4.433420]  [<ffffffff803e4fdf>] sock_ioctl+0xcf/0x260
[    4.433425]  [<ffffffff802ab90f>] do_ioctl+0x2f/0xa0
[    4.433428]  [<ffffffff802abba0>] vfs_ioctl+0x220/0x2c0
[    4.433433]  [<ffffffff8029b875>] fd_install+0x25/0x60
[    4.433437]  [<ffffffff802abcd1>] sys_ioctl+0x91/0xb0
[    4.433442]  [<ffffffff8020c698>] system_call+0x68/0x6d
[    4.433445]  [<ffffffff8020c630>] system_call+0x0/0x6d
[    4.433448]
[    4.433449]
[    4.433449] Code: 0f 0b eb fe 0f 0b eb fe c7 44 24 3c 00 00 00 00  
e9 58 ff ff
[    4.433464] RIP  [<ffffffff8039aa14>] network_alloc_rx_buffers 
+0x534/0x5e0
[    4.433469]  RSP <ffff88000fea1d08>
[    4.433481] ---[ end trace 817b38e10754b0a4 ]---
[    4.433487] Kernel panic - not syncing: Aiee, killing interrupt  
handler!


[EMAIL PROTECTED] ~]# uname -a
Linux pps0355.gridpp.rl.ac.uk 2.6.18-53.1.14.el5xen #1 SMP Wed Mar 5  
10:26:35 EST 2008 x86_64 x86_64 x86_64 GNU/Linux

host  is Scientific Linux (I assume the Centos host would give the  
same bug)

[EMAIL PROTECTED] ~]# cat /etc/redhat-release
Scientific Linux SL release 5.1 (Boron)
[EMAIL PROTECTED] ~]# rpm -qa | grep kernel
kernel-xen-2.6.18-53.1.4.el5
kernel-xen-2.6.18-53.1.14.el5
[EMAIL PROTECTED] ~]# rpm -qa | grep linux
util-linux-2.13-0.45.el5_1.1
libselinux-1.33.4-4.el5
[EMAIL PROTECTED] ~]# rpm -qa | grep xen
kernel-xen-2.6.18-53.1.4.el5
kernel-xen-2.6.18-53.1.14.el5
xen-libs-3.0.3-41.el5
xen-3.0.3-41.el5


[EMAIL PROTECTED] ~]# cat /etc/xen/pps-x12 | grep -v ^# | grep -v ^$
ramdisk         =  '/var/lib/xen-strap/pps-x12/initrd.img-2.6.24-16-xen'
kernel          =  '/var/lib/xen-strap/pps-x12/vmlinuz-2.6.24-16-xen'
memory          =  '256'
root        = '/dev/sda1 ro console=/dev/xvc0 '
disk        = [ 'phy:data/ub7t1,/dev/sda1,w' ,'phy:data/ub7t1-SWAP,/ 
dev/sda2,w' ]
name        = 'pps-x12'
vif = [ 'bridge=xenbr1' ]


[EMAIL PROTECTED] ~]# xm info
host                   : pps0355.gridpp.rl.ac.uk
release                : 2.6.18-53.1.14.el5xen
version                : #1 SMP Wed Mar 5 10:26:35 EST 2008
machine                : x86_64
nr_cpus                : 2
nr_nodes               : 1
sockets_per_node       : 2
cores_per_socket       : 1
threads_per_core       : 1
cpu_mhz                : 1992
hw_caps                : 078bfbff:e1d3fbff:00000000:00000010
total_memory           : 2047
free_memory            : 1493
xen_major              : 3
xen_minor              : 1
xen_extra              : .0-53.1.14.el5
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : unavailable
cc_compiler            : gcc version 4.1.2 20070626 (Red Hat 4.1.2-14)
cc_compile_by          : brewbuilder
cc_compile_domain      : (none)
cc_compile_date        : Wed Mar  5 10:05:28 EST 2008
xend_config_format     : 2

-- 
Bruce McIntyre <[EMAIL PROTECTED]>
Tel:    +27 11 731 1700
Fax:    +27 11 327 6052
Mobile:    +27 83 265 0918
Qualica Technologies (Pty) Ltd
web: http://www.qualica.com/

-- 
xen guest  kernel bug:  'kernel BUG at 
/build/buildd/linux-2.6.24/debian/build/custom-source-xen/drivers/xen/netfront/netfront.c:785'
https://bugs.launchpad.net/bugs/218126
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