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xen-devel
Re: [Xen-devel] xen-3.0.3 occur kernel panic
Xen 3.0.3 is old. Can you repro this with Xen 3.1.3 or 3.2.0 or current xen-unstable?
-- Keir
On 20/2/08 02:27, "Wei Jiang" <WEI.JIANG@xxxxxxxxxxxxxxxxxx> wrote:
Hi everybody,
the xen-3.0.3 will occur a kernel panic when attempt to run
a full virtualization guest OS.
the configure of guest OS as below:
---------------------------------------------------------------------------
# Automatically generated xen config file
name = "fvguest"
builder = "hvm"
memory = "500"
disk = [ 'file:/mnt/fvguest,hda,w', ]
vif = [ 'type=ioemu, mac=00:16:3e:23:21:ec, bridge=xenbr0', ]
uuid = "7301d7ec-e036-11d7-d14b-b21be1c783be"
device_model = "/usr/lib64/xen/bin/qemu-dm"
kernel = "/usr/lib/xen/boot/hvmloader"
vnc=1
vncunused=1
apic=1
acpi=1
pae=1
vcpus=1
serial = "pty" # enable serial console
on_reboot = 'restart'
on_crash = 'restart'
---------------------------------------------------------------------------
When I run such a guest OS, the kernel panic is occurred.
# xm create fvguest
----------- [cut here ] --------- [please bite here ] ---------
Kernel BUG at mm/memory.c:2245
invalid opcode: 0000 [1] SMP
last sysfs file: /block/loop6/range
CPU 0
Modules linked in: loop xt_physdev iptable_filter ip_tables x_tables tun bridge netloop netbk blktap blkbk autofs4 hidp rfcomm l2cap bluetooth sunrpc ipv6 video sbs i2c_ec i2c_core button battery asus_acpi ac parport_pc lp parport sr_mod cdrom sg shpchp serio_raw serial_core pcspkr ext3 jbd ehci_hcd ohci_hcd uhci_hcd
Pid: 4096, comm: qemu-dm Tainted: PF 2.6.18-8.el5xen #1
RIP: e030:[<ffffffff80208b33>] [<ffffffff80208b33>] __handle_mm_fault+0x379/0xf46
RSP: e02b:ffff8807ac451de8 EFLAGS: 00010202
RAX: ffffffff805093c0 RBX: 0000000000000df8 RCX: 00003ffffffff000
RDX: 00000007abf6edf8 RSI: 0000000000000067 RDI: ffff8807db3db040
RBP: ffff8807db3db040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000
R13: ffff8807abf6edf8 R14: 00002aaacafbf000 R15: ffff8807d2dbf870
FS: 00002aaaaaabd010(0000) GS:ffffffff8058d000(0000) knlGS:0000000000000000
CS: e033 DS: 0000 ES: 0000
Process qemu-dm (pid: 4096, threadinfo ffff8807ac450000, task ffff8807d42d1860)
Stack: 00000000fffffff2 0000000180274661 ffff8807db3db040 ffff8807ac73d2b8
0000000000001000 00002aaacb7be000 ffff8807db3db040 ffffffff802606e9
ffff8807db3db0a8 ffffffff80221dde
Call Trace:
[<ffffffff802606e9>] _spin_lock_irqsave+0x9/0x14
[<ffffffff80221dde>] __up_read+0x19/0x7f
[<ffffffff80262fc6>] do_page_fault+0xe48/0x11dc
[<ffffffff8025cb53>] error_exit+0x0/0x6e
Code: 0f 0b 68 21 bd 46 80 c2 c5 08 49 8b 87 90 00 00 00 48 c7 44
RIP [<ffffffff80208b33>] __handle_mm_fault+0x379/0xf46
RSP <ffff8807ac451de8>
<0>Kernel panic - not syncing: Fatal exception
The system is redhat 5:
# cat /etc/redhat-release erver release 5 (Tikanga)
Red Hat Enterprise Linux Server release 5 (Tikanga)
# uname -a
Linux wjiang 2.6.18-8.el5xen #1 SMP Fri Jan 26 14:29:35 EST 2007 x86_64 x86_64 x86_64 GNU/Linux
And the xen occurred the panic is 3.0.3,
# cat /usr/share/doc/xen-3.0.3/README
################################
__ __ _____ ___
\ \/ /___ _ __ |___ / / _ \
\ // _ \ '_ \ |_ \| | | |
/ \ __/ | | | ___) | |_| |
/_/\_\___|_| |_| |____(_)___/
################################
>From the kernel panic message, I doubt this is qemu-dm bug, so I download the xen 3.0.3
from official site. I recompiled the qemu-dm and used it instead of the system qemu-dm. But the
panic was still occurred when running the 'xm create fvguest'. Look the /var/log/message and
/var/log/xen/*, there are no any useful message .
could anybody show any helps or advices? Also, If I want to debug it, what I need to do?
As I know, the kdump is not supported in xen kernel.
Thanks advances,
WJ
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