[Xen-devel] 2.6.27-rc4 pvops domU on Xen 3.3 Kernel panic

["Todd Deshane" <deshantm@xxxxxxxxx>]

I'm trying to build a kernel.org domU to run on Xen 3.3

My first attempt produced a kernel panic.

Below is my setup and the panic that occurred during boot right after:

[    0.004000] Initializing cgroup subsys cpuacct
[    0.008000]
[    0.008000] CPU 0/0 -> Node 0
[    0.008000] CPU: Physical Processor ID: 0
[    0.008000] CPU: Processor Core ID: 0
[    0.008000] SMP alternatives: switching to UP code
[    0.020001] Freeing SMP alternatives: 22k freed

The same panic happens for both default vcpus, vcpus=1, and vcpus=2

Any ideas or hints?

Thanks in advance,
Todd


dom0:
Xen 3.3, 2.6.18.8 from 3.3 release.

domU:
2.6.27-rc4 (from kernel.org)

CONFIG_XEN=y
CONFIG_XEN_MAX_DOMAIN_MEMORY=32
CONFIG_XEN_SAVE_RESTORE=y
CONFIG_XEN_BLKDEV_FRONTEND=y
CONFIG_NETXEN_NIC=m
CONFIG_XEN_NETDEV_FRONTEND=y
CONFIG_XEN_KBDDEV_FRONTEND=y
CONFIG_HVC_XEN=y
CONFIG_XEN_FBDEV_FRONTEND=y
CONFIG_XEN_BALLOON=y
CONFIG_XEN_SCRUB_PAGES=y

CONFIG_PARAVIRT_GUEST=y
CONFIG_PARAVIRT=y
CONFIG_PARAVIRT_CLOCK=y
CONFIG_PARAVIRT_DEBUG=y

CONFIG_HVC_DRIVER=y
CONFIG_HVC_IRQ=y
CONFIG_HVC_XEN=y

full .config here:
http://pastebin.com/m5a665cc0


[    0.020001] ------------[ cut here ]------------
[    0.020001] kernel BUG at include/asm/paravirt.h:1092!
[    0.020001] invalid opcode: 0000 [1] SMP
[    0.020001] CPU 0
[    0.020001] Modules linked in:
[    0.020001] Pid: 0, comm: swapper Not tainted 2.6.27-rc4 #4
[    0.020001] RIP: e030:[<ffffffff80230718>]  [<ffffffff80230718>]
__change_page_attr+0x268/0x280
[    0.020001] RSP: e02b:ffffffff80645ed8  EFLAGS: 00010206
[    0.020001] RAX: 00003ffffffff000 RBX: 001000011938a027 RCX: 0000000000000000
[    0.020001] RDX: ffff800000000000 RSI: ffffffff80645efc RDI: 001000011938a027
[    0.020001] RBP: ffffffff80645efc R08: 0000000000000001 R09: 0000000000000002
[    0.020001] R10: 000000000000066c R11: 0000000000000000 R12: ffff88000ae06000
[    0.020001] R13: ffff880000000000 R14: ffffffff80645f68 R15: 0000000000000001
[    0.020001] FS:  0000000000000000(0000) GS:ffffffff8063c380(0000)
knlGS:0000000000000000
[    0.020001] CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
[    0.020001] CR2: 0000000000000000 CR3: 0000000000201000 CR4: 0000000000002620
[    0.020001] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    0.020001] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[    0.020001] Process swapper (pid: 0, threadinfo ffffffff80644000,
task ffffffff805e3340)
[    0.020001] Stack:  0000000000000001 ffffffff80577fdf
001000011938a027 ffffe200000167a0
[    0.020001]  00000001804933bf ffffffff80645f68 0000000000000001
0000000000000000
[    0.020001]  0000000000000001 0000000000000001 0000000000000001
ffffffff80230785
[    0.020001] Call Trace:
[    0.020001]  [<ffffffff80230785>] ? __change_page_attr_set_clr+0x55/0x80
[    0.020001]  [<ffffffff80230853>] ? change_page_attr_set_clr+0xa3/0x160
[    0.020001]  [<ffffffff8022d897>] ? free_init_pages+0xa7/0xc0
[    0.020001]  [<ffffffff8066de9f>] ? start_kernel+0x20f/0x300
[    0.020001]
[    0.020001]
[    0.020001] Code: e9 48 c7 c2 80 f2 57 80 be 5b 02 00 00 48 c7 c7
75 ec 57 80 e8 ea 48 01 00 b8 ea ff ff ff e9 26 fe ff ff 0f 0b eb fe
0f 0b eb fe <0f> 0b eb fe 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe 0f 0b eb
fe 0f
[    0.020001] RIP  [<ffffffff80230718>] __change_page_attr+0x268/0x280
[    0.020001]  RSP <ffffffff80645ed8>
[    0.024001] ---[ end trace 4eaa2a86a8e2da22 ]---

guest config:

kernel = "/root/kernels/vmlinuz-2.6.27-rc4"
ramdisk = "/root/kernels/initrd.img-2.6.27-rc4"
root="/dev/hda2 ro"
memory = 512
disk = [ 'tap:aio:/root/benchvm/bin/img-xen-guest/image-3.img,hda,w' ]
vif = [ 'bridge=br0','bridge=br1']
extra='console=hvc0'

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