Bugs item #1972449, was opened at 2008-05-26 11:25
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: yunfeng (yunfeng)
Assigned to: Nobody/Anonymous (nobody)
Summary: netperf causes linux guest with virtnet kernel panic
Initial Comment:
kvm.git c018f921a92baf1b32d943e8fc5232890be875f4 and kvm-userspace.git
57df8fc3c95411872d350724c9da99799361ccda.
Running netperf tcp_stream will cause linux guest with virtnet kernel panic.
And scp and ping work well.
login: BUG: unable to handle kernel NULL pointer dereference at 00000004
IP: [<f88182ce>] :virtio_net:start_xmit+0x29/0xd6
*pde = 00000000
Oops: 0002 [#1] SMP
Modules linked in: virtio_net virtio_pci virtio_ring virtio
Pid: 0, comm: swapper Not tainted (2.6.26-rc3 #2)
EIP: 0060:[<f88182ce>] EFLAGS: 00010202 CPU: 0
EIP is at start_xmit+0x29/0xd6 [virtio_net]
EAX: f725f5dc EBX: f715a480 ECX: f725f49c EDX: 00000000
ESI: f715a000 EDI: f78b059c EBP: f715a000 ESP: c05b5d4c
DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
Process swapper (pid: 0, ti=c05b4000 task=c0558340 task.ti=c05b4000)
Stack: 000005f4 f715a000 f78b059c c05b1508 c0378d83 00000000 f715a000 f78b059c
00000001 c0384663 ffff0712 f715a000 00000000 f78b059c f7b74e00 c037adbe
f78b059c f7b74ea0 f71f30a4 c038edfc f7b74e88 00000000 f78b059c 00000000
Call Trace:
[<c0378d83>] dev_hard_start_xmit+0x1d3/0x237
[<c0384663>] __qdisc_run+0xa7/0x17a
[<c037adbe>] dev_queue_xmit+0x16d/0x277
[<c038edfc>] ip_finish_output+0x1b8/0x1ef
[<c038db34>] ip_local_out+0x15/0x17
[<c038f3f0>] ip_queue_xmit+0x233/0x273
[<c01585e4>] add_partial+0xe/0x40
[<c03b353b>] bictcp_cong_avoid+0x12/0x2b8
[<c012499f>] lock_timer_base+0x19/0x35
[<c03a0c22>] tcp_v4_send_check+0x74/0xaa
[<c039cde6>] tcp_transmit_skb+0x5f3/0x626
[<c039e3e2>] __tcp_push_pending_frames+0x623/0x6c9
[<c039b9d9>] tcp_rcv_established+0xe4/0x75f
[<c015a2bc>] kmem_cache_free+0x60/0x69
[<c039b9d9>] tcp_rcv_established+0xe4/0x75f
[<c039b9f7>] tcp_rcv_established+0x102/0x75f
[<c03a070f>] tcp_v4_do_rcv+0x1f/0x14e
[<c03a1eb0>] tcp_v4_rcv+0x4e7/0x537
[<c038bad4>] ip_local_deliver+0xa9/0x141
[<c038bf57>] ip_rcv+0x3eb/0x41c
[<c037880f>] netif_receive_skb+0x1ae/0x204
[<f881884b>] virtnet_poll+0x164/0x235 [virtio_net]
[<c037a3dc>] net_rx_action+0x8a/0x152
[<c0121386>] __do_softirq+0x5d/0xc1
[<c012141c>] do_softirq+0x32/0x36
[<c01216c1>] irq_exit+0x35/0x67
[<c01053ed>] do_IRQ+0x73/0x82
[<c01022e7>] default_idle+0x0/0x3d
[<c0103f4f>] common_interrupt+0x23/0x28
[<c01022e7>] default_idle+0x0/0x3d
[<c0102311>] default_idle+0x2a/0x3d
[<c0102263>] cpu_idle+0x8d/0xa9
=======================
Code: b5 c7 57 89 c7 56 89 d6 53 83 ec 04 8b 9a 08 02 00 00 eb 30 ff 4b 5c 8b 11
8b 41 04 c7 01 00 00 00 00 c7 41 04 00 00 00 00 89 10 <89> 42 04 8b 53 0c 8b 41
50 01 42 64 8b 43 0c ff 40 5c 89 c8 e8
EIP: [<f88182ce>] start_xmit+0x29/0xd6 [virtio_net] SS:ESP 0068:c05b5d4c
Kernel panic - not syncing: Fatal exception in interrupt
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