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[Xen-users] Re: [Xen-devel] kernel panic

To: john bryant <bryant.johan@xxxxxxxxx>, "xen-users@xxxxxxxxxxxxxxxxxxx" <xen-users@xxxxxxxxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-users] Re: [Xen-devel] kernel panic
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Mon, 18 Feb 2008 20:15:12 +0000
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Thread-topic: [Xen-devel] kernel panic
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What are the dom0 and domU kernels? The bug is in one of those, not Xen itself.

 -- Keir

On 16/2/08 03:48, "john bryant" <bryant.johan@xxxxxxxxx> wrote:

Hi all,

I am using xen3.0.4. I  am able to boot dom0. While booting a guest OS, i am getting following error:

Bringing up interface eth0:  network_tx_buf_gc: warning -- grant still in use by backend domain.
------------[ cut here ]------------
kernel BUG at drivers/xen/netfront/netfront.c:678!
invalid opcode: 0000 [#1]
Modules linked in: binfmt_misc dm_mirror dm_mod lp parport_pc parport nvram usbcore
CPU:    0
EIP:    0061:[<c022fd15>]    Not tainted VLI
EFLAGS: 00010096   ( #263)
EIP is at network_tx_buf_gc+0x1e8/0x2be
eax: 00000047   ebx: 00000001   ecx: 00000000   edx: 00000001
esi: c73acbc0   edi: c04f0380   ebp: 00000000   esp: c73c5cb8
ds: 007b   es: 007b   ss: 0069
Process arping (pid: 1797, threadinfo=c73c4000 task=c724d030)
Stack: <0>c0397424 c04f0000 00000001 fd5520de 0000014f c73c4000 00000000 0000002a
       c04f0380 c73acbc0 c02324c8 00000004 c73c5ce8 c73c5ce8 c04f0450 00000000
       c04f0c54 26e953c0 c04f0000 c7a59c02 00000001 c8185040 00000000 00000c02
Call Trace:
 [<c02324c8>] network_start_xmit+0x516/0x67e
 [<c0107917>] monotonic_clock+0x54/0x99
 [<c02eaebf>] dev_hard_start_xmit+0x1e8/0x2ce
 [<c02e6b7a>] alloc_skb_from_cache+0x43/0xf9
 [<c02f9ab3>] __qdisc_run+0x6e/0x248
 [<c011f0df>] profile_handoff_task+0x1b/0x2d
 [<c02ecce8>] dev_queue_xmit+0x1cb/0x36c
 [<c02e76aa>] memcpy_fromiovec+0x37/0x4e
 [<c03449ad>] packet_sendmsg+0x1ce/0x25e
 [<c02e0b9c>] sock_sendmsg+0xe6/0x101
 [<c01542d5>] find_mergeable_anon_vma+0x88/0xbc
 [<c0130eae>] autoremove_wake_function+0x0/0x37
 [<c04584d4>] net_dev_init+0x17/0x1f4
 [<c045857c>] net_dev_init+0xbf/0x1f4
 [<c0150062>] __handle_mm_fault+0xc99/0x104f
 [<c01c9203>] copy_from_user+0x2e/0x64
 [<c02e200b>] sys_sendto+0xf5/0x116
 [<c02ec9de>] dev_ioctl+0x23a/0x379
 [<c034971e>] do_page_fault+0x51e/0xd00
 [<c02e2369>] sys_socketcall+0x1bb/0x294
 [<c0105289>] syscall_call+0x7/0xb
Code: 2b 44 24 0c 1b 54 24 10 01 c8 11 da a3 e0 8d 4c c0 89 15 e4 8d 4c c0 83 c4 18 5b 5e 5f 5d c3 c7 04 24 24 74 39 c0 e8 45 e7 ee ff <0f> 0b a6 02 dc 73 39 c0 e9 a7 fe ff ff 0f 0b 92 02 dc 73 39 c0
 <0>Kernel panic - not syncing: Fatal exception in interrupt

Any help is appreciated

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