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[Xen-devel] kernel bug during domU reboot

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] kernel bug during domU reboot
From: Roberto Chessa <chessa@xxxxxxxxxxx>
Date: Thu, 2 Mar 2006 18:01:18 +0100 (CET)
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Hi,

below you can find dmesg output of my dom0, I can reproduce this bug every time I reboot a domU that have 3 network interface ( other domU are ok)

Dom0 is gentoo with a stable xen 3.0.1.

someone have found a bug like this?


----
kernel BUG at include/linux/dcache.h:294!
invalid operand: 0000 [#1]
SMP
Modules linked in: af_packet bridge ohci_hcd ehci_hcd uhci_hcd evdev usbcore uni
x
CPU:    2
EIP:    0061:[<c01962a1>]    Tainted: GF     VLI
EFLAGS: 00010246   (2.6.12.6-xen0)
EIP is at sysfs_remove_dir+0x100/0x10d
eax: 00000000   ebx: dd6a8714   ecx: dfb349e0   edx: dd6a8714
esi: dd4bf220   edi: dd0831f4   ebp: 00000006   esp: c55a3e88
ds: 007b   es: 007b   ss: 0069
Process events/2 (pid: 12, threadinfo=c55a3000 task=c55a1530)
Stack: dd4b3864 c02b2ca2 dd6a8714 dd6a8714 dd4bf220 dd4bf220 00000006 c01be280 dd6a8714 dd6a8680 e14cf85f dd6a8714 dd6a8680 dcec8800 e14d0963 dd4bf220 dcec8800 e14d8880 dcec8800 00000006 dcec8944 c012d547 e14d8880 00000006
Call Trace:
 [<c02b2ca2>] pneigh_queue_purge+0x35/0x50
 [<c01be280>] kobject_del+0x10/0x1d
 [<e14cf85f>] br_del_if+0x3a/0x64 [bridge]
 [<e14d0963>] br_device_event+0xcb/0x110 [bridge]
 [<c012d547>] notifier_call_chain+0x25/0x3c
 [<c02b0b27>] unregister_netdevice+0x148/0x25d
 [<c02b0c51>] unregister_netdev+0x15/0x1e
 [<c022e516>] free_netif_callback+0x51/0x89
 [<c0130206>] worker_thread+0x1da/0x264
 [<c022e4c5>] free_netif_callback+0x0/0x89
 [<c011ba31>] default_wake_function+0x0/0x12
 [<c011ba31>] default_wake_function+0x0/0x12
 [<c013002c>] worker_thread+0x0/0x264
 [<c01344d4>] kthread+0xba/0xf0
 [<c013441a>] kthread+0x0/0xf0
 [<c0107f99>] kernel_thread_helper+0x5/0xb
Code: 89 44 24 08 8b 00 89 04 24 e8 04 12 fb ff 8b 54 24 08 8b 42 04 89 04 24 e8 eb 80 02 00 8b 44 24 08 89 04 24 e8 e9 11 fb ff eb 92 <0f> 0b 26 01 8b bc 31 c0
 e9 13 ff ff ff 83 ec 20 89 5c 24 10 89



--
Roberto Chessa
Tiscali Services S.r.l.
IS Operation System Manager




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