Zhao, Yunfeng
2006-Oct-23 09:41 UTC
[Xen-devel] PV and FV networks cannot coexist on HVM guest.
HVM guest cannot load VNIF module if it is already loaded PV network
driver.
And following error messages will be printed on hvm guest console.
vif vif-0: 2 parsing device/vif/0/mac
netif_release_rx_bufs: fix me for copying receiver.
------------[ cut here ]------------
kernel BUG at net/core/dev.c:3073!
invalid opcode: 0000 [#1]
Modules linked in: xen_vnif xen_vbd xenbus xen_platform_pci ipv6
dm_mirror dm_multipath dm_mod 8139cp mii floppy ext3 jbd
CPU: 0
EIP: 0060:[<c0280069>] Not tainted VLI
EFLAGS: 00010206 (2.6.16.29 #1)
EIP is at unregister_netdevice+0x78/0x1e6
eax: 00000005 ebx: d4f20000 ecx: 00000000 edx: db940000
esi: 00000005 edi: c4852627 ebp: e08cada0 esp: db940f34
ds: 007b es: 007b ss: 0068
Process xenwatch (pid: 3906, threadinfo=db940000 task=dec1e000)
Stack: <0>d4f20000 00000005 c4852627 c02801e6 dd346000 e08c783d dd346000
e0936a7f
22222222 22222222 c4852608 c4852680 dd346010 c4852680 e09360e0
e09360af
db940000 dd7a3eec e09361fe 00000000 dec1e000 c0126f92 db940fac
db940fac
Call Trace:
[<c02801e6>] unregister_netdev+0xf/0x15
[<e08c783d>] netfront_closing+0xe/0x16 [xen_vnif]
[<e0936a7f>] otherend_changed+0x92/0x9a [xenbus]
[<e09360e0>] xenwatch_thread+0x0/0x134 [xenbus]
[<e09360af>] xenwatch_handle_callback+0x12/0x43 [xenbus]
[<e09361fe>] xenwatch_thread+0x11e/0x134 [xenbus]
[<c0126f92>] autoremove_wake_function+0x0/0x2d
[<c0126f92>] autoremove_wake_function+0x0/0x2d
[<c0126b45>] kthread+0x75/0x9d
[<c0126ad0>] kthread+0x0/0x9d
[<c01012a1>] kernel_thread_helper+0x5/0xb
Code: 83 c4 0c 8b 83 9c 01 00 00 85 c0 75 19 53 53 68 bd e4 30 c0 e8 83
78 e9 ff 83 c4 0c b8 ed ff ff ff e9 6f 01 00 00 83 f8 02 74 08 <0f> 0b
01 0c 2a e0 30 c0 f6 43 5c 01 74 07 89 d8 e8 30 de ff ff
BUG: xenwatch/3906, lock held at task exit time!
[e093d740] {xenwatch_mutex}
.. held by: xenwatch: 3906 [dec1e000, 110]
... acquired at: xenwatch_thread+0xac/0x134 [xenbus]
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