Bugs item #1972449, was opened at 2008-05-26 11:25 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=1972449&group_id=180599
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. 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 ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=1972449&group_id=180599 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html