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I've recently upgraded a xen-3 FC5 dom0 host to the latest Xen packages
(2187_FC5xen0 and xenU), and this happened in a domU shortly after boot:
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kernel BUG at net/core/dev.c:1206!
invalid opcode: 0000 [#1]
SMP
Modules linked in: xt_tcpudp iptable_mangle iptable_nat ip_nat ip_conntrack
nfnetlink iptable_filter ip_tables ipv6 x_tables xennet dm_snapshot dm_zero
dm_mirror dm_mod raid1
CPU: 0
EIP: 0061:[<c055821a>] Not tainted VLI
EFLAGS: 00010297 (2.6.17-1.2187_FC5xenU #1)
EIP is at skb_gso_segment+0x29/0xc9
eax: 00000000 ebx: c7849ec4 ecx: 00050003 edx: c05f7700
esi: c7849ec4 edi: 00000008 ebp: c7eb8000 esp: c0651b84
ds: 007b es: 007b ss: 0069
Process swapper (pid: 0, threadinfo=c0650000 task=c05f2800)
Stack: <0>00000001 c7849ec4 c69ed300 c055938b c7849ec4 00050003 00000001
c7eb8000
c7849ec4 c7eb8180 00000000 c0564e1e c7849ec4 c7eb8000 c12a7400 00000000
c7eb8000 c0650000 c7849ec4 c055af7e c7eb8000 c7d8bcf4 c7d8bd14 c69ed2cc
Call Trace:
<c055938b> dev_hard_start_xmit+0x174/0x203 <c0564e1e> __qdisc_run+0xe0/0x19a
<c055af7e> dev_queue_xmit+0x1ce/0x2cc <c0575232> ip_output+0x1b6/0x1ec
<c0574ace> ip_queue_xmit+0x374/0x3b3 <c05addbf> _spin_lock_irqsave+0x22/0x27
<c05adebd> _spin_unlock_irqrestore+0x9/0x31 <c042146a> __mod_timer+0x96/0x9e
<c05821f3> tcp_transmit_skb+0x5d2/0x602 <c0583b84>
__tcp_push_pending_frames+0x6b7/0x789
<c057f9b0> tcp_data_queue+0x518/0x97f <c05814f4>
tcp_rcv_established+0x60d/0x695
<c058653c> tcp_v4_do_rcv+0x23/0x2ce <c0588a86> tcp_v4_rcv+0x8ee/0x964
<c05708ff> ip_local_deliver+0x58/0x1fd <c05709fe> ip_local_deliver+0x157/0x1fd
<c057086d> ip_rcv+0x3e9/0x423 <c055901f> netif_receive_skb+0x21a/0x298
<c908fca9> netif_poll+0x8b0/0xae1 [xennet] <c055ac7f> net_rx_action+0xcd/0x1fe
<c041d6db> __do_softirq+0x70/0xef <c041d79a> do_softirq+0x40/0x67
<c040665f> do_IRQ+0x1f/0x25 <c051a159> evtchn_do_upcall+0x66/0x9f
<c0404d79> hypervisor_callback+0x3d/0x48 <c0407aad> safe_halt+0x84/0xa7
<c0402bde> xen_idle+0x46/0x4e <c0402cfd> cpu_idle+0x94/0xad
<c0655772> start_kernel+0x346/0x34c
Has anyone seen this at all? Any ideas where to start digging for clues?
Adrian
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