Copying netdev, bridge mailing lists. On 05/24/2010 11:23 AM, Hao, Xudong wrote:
Hi all I build latest kvm 37dec075a7854f0f550540bf3b9bbeef37c11e2a, based on kernel 2.6.34, after kvm and kvm_intel module loaded, then /etc/init.d/kvm start, a few minutes later, the system will panic. kernel: 2.6.34 kvm: 37dec075a7854f0f550540bf3b9bbeef37c11e2a qemu-kvm: 69dd59a66aaf56d1e8e4c96d0a0923c9cf8f79a0 BUG: unable to handle kernel NULL pointer dereference at 00000018 IP: [<f914c05b>] br_mdb_ip_get+0x2e/0x1aa [bridge] *pdpt = 0000000035fbb001 *pde = 0000000000000000 Oops: 0000 [#1] SMP last sysfs file: /sys/devices/system/cpu/cpu7/cache/index2/shared_cpu_map Modules linked in: bridge stp autofs4 hidp rfcomm l2cap crc16 bluetooth rfkill ] Pid: 0, comm: swapper Not tainted 2.6.34 #1 X7DWA/X7DWA EIP: 0060:[<f914c05b>] EFLAGS: 00010246 CPU: 0 EIP is at br_mdb_ip_get+0x2e/0x1aa [bridge] EAX: c5801d40 EBX: c5801d40 ECX: faffffef EDX: 00000000 ESI: f67e03c0 EDI: f5249200 EBP: c5801c94 ESP: c5801c80 DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 Process swapper (pid: 0, ti=c5801000 task=c07f2fe0 task.ti=c07de000) Stack: c5801d40 00000000 c5801d40 f67e03c0 f5249200 c5801cb0 f914c6fd fff90006 <0> f67e0940 f6326740 f627e064 f67e03c0 c5801d78 f914dd0c f76af140 f6326740 <0> f5249200 f67e03c0 00000014 f6326758 c5801d54 c08eb440 c5801cf4 c5801d00 Call Trace: [<f914c6fd>] ? br_multicast_leave_group+0x52/0x128 [bridge] [<f914dd0c>] ? br_multicast_rcv+0x6dc/0xe90 [bridge] [<c0650420>] ? fib_lookup+0x2c/0x3a [<c064cd15>] ? fib_validate_source+0x29d/0x2b4 [<c0621175>] ? nf_hook_slow+0x3b/0x92 [<f9147b39>] ? br_handle_frame_finish+0x53/0x17e [bridge] [<f914b880>] ? br_nf_pre_routing_finish+0x264/0x27c [bridge] [<c0621175>] ? nf_hook_slow+0x3b/0x92 [<f914b61c>] ? br_nf_pre_routing_finish+0x0/0x27c [bridge] [<f914bf6f>] ? br_nf_pre_routing+0x553/0x570 [bridge] [<c0621107>] ? nf_iterate+0x2f/0x62 [<f9147ae6>] ? br_handle_frame_finish+0x0/0x17e [bridge] [<c0621175>] ? nf_hook_slow+0x3b/0x92 [<f9147ae6>] ? br_handle_frame_finish+0x0/0x17e [bridge] [<f9147dda>] ? br_handle_frame+0x176/0x198 [bridge] [<f9147ae6>] ? br_handle_frame_finish+0x0/0x17e [bridge] [<c060643b>] ? __netif_receive_skb+0x29a/0x37e [<c0607023>] ? dev_gro_receive+0xfd/0x1d2 [<c0606e03>] ? netif_receive_skb+0x61/0x67 [<c0607199>] ? __napi_gro_receive+0xa1/0xba [<c0606e7e>] ? napi_skb_finish+0x1e/0x33 [<c0607201>] ? napi_gro_receive+0x20/0x24 [<f8867cfc>] ? igb_poll+0x706/0xa39 [igb] [<c06093b2>] ? net_rx_action+0x97/0x13b [<c0430641>] ? __do_softirq+0x80/0xf4 [<c04305c1>] ? __do_softirq+0x0/0xf4 <IRQ> [<c04305bf>] ? irq_exit+0x29/0x2b [<c040373e>] ? do_IRQ+0x85/0x9b [<c0402ca9>] ? common_interrupt+0x29/0x30 [<c0407c4f>] ? mwait_idle+0x4c/0x52 [<c0401a08>] ? cpu_idle+0x3a/0x4e [<c066cf16>] ? rest_init+0x62/0x64 [<c08248dd>] ? start_kernel+0x2c2/0x2c7 [<c08240b3>] ? i386_start_kernel+0xb3/0xb8 Code: 57 56 53 83 ec 08 89 45 f0 89 55 ec 8b 42 10 66 83 f8 08 74 0e 31 db 66 3 EIP: [<f914c05b>] br_mdb_ip_get+0x2e/0x1aa [bridge] SS:ESP 0068:c5801c80 CR2: 0000000000000018 ---[ end trace 907f878ab4cd8031 ]--- Kernel panic - not syncing: Fatal exception in interrupt Pid: 0, comm: swapper Tainted: G D 2.6.34 #1 Call Trace: [<c042c31b>] panic+0x3e/0xaa [<c0681caa>] oops_end+0x8c/0x9b [<c041e710>] no_context+0x153/0x15d [<c041e8a2>] __bad_area_nosemaphore+0xe5/0xed [<c041e90e>] bad_area_nosemaphore+0xd/0x13 [<c06838b0>] do_page_fault+0x375/0x37d [<c0650420>] ? fib_lookup+0x2c/0x3a [<c0624431>] ? ip_route_input_common+0x695/0xf2f [<c068353b>] ? do_page_fault+0x0/0x37d [<c06813d6>] error_code+0x66/0x6c [<c068353b>] ? do_page_fault+0x0/0x37d [<f914c05b>] ? br_mdb_ip_get+0x2e/0x1aa [bridge] [<f914c6fd>] br_multicast_leave_group+0x52/0x128 [bridge] [<f914dd0c>] br_multicast_rcv+0x6dc/0xe90 [bridge] [<c0650420>] ? fib_lookup+0x2c/0x3a [<c064cd15>] ? fib_validate_source+0x29d/0x2b4 [<c0621175>] ? nf_hook_slow+0x3b/0x92 [<f9147b39>] br_handle_frame_finish+0x53/0x17e [bridge] [<f914b880>] br_nf_pre_routing_finish+0x264/0x27c [bridge] [<c0621175>] ? nf_hook_slow+0x3b/0x92 [<f914b61c>] ? br_nf_pre_routing_finish+0x0/0x27c [bridge] [<f914bf6f>] br_nf_pre_routing+0x553/0x570 [bridge] [<c0621107>] nf_iterate+0x2f/0x62 [<f9147ae6>] ? br_handle_frame_finish+0x0/0x17e [bridge] [<c0621175>] nf_hook_slow+0x3b/0x92 [<f9147ae6>] ? br_handle_frame_finish+0x0/0x17e [bridge] [<f9147dda>] br_handle_frame+0x176/0x198 [bridge] [<f9147ae6>] ? br_handle_frame_finish+0x0/0x17e [bridge] [<c060643b>] __netif_receive_skb+0x29a/0x37e [<c0607023>] ? dev_gro_receive+0xfd/0x1d2 [<c0606e03>] netif_receive_skb+0x61/0x67 [<c0607199>] ? __napi_gro_receive+0xa1/0xba [<c0606e7e>] napi_skb_finish+0x1e/0x33 [<c0607201>] napi_gro_receive+0x20/0x24 [<f8867cfc>] igb_poll+0x706/0xa39 [igb] [<c06093b2>] net_rx_action+0x97/0x13b [<c0430641>] __do_softirq+0x80/0xf4 [<c04305c1>] ? __do_softirq+0x0/0xf4 <IRQ> [<c04305bf>] ? irq_exit+0x29/0x2b [<c040373e>] ? do_IRQ+0x85/0x9b [<c0402ca9>] ? common_interrupt+0x29/0x30 [<c0407c4f>] ? mwait_idle+0x4c/0x52 [<c0401a08>] ? cpu_idle+0x3a/0x4e [<c066cf16>] ? rest_init+0x62/0x64 [<c08248dd>] ? start_kernel+0x2c2/0x2c7 [<c08240b3>] ? i386_start_kernel+0xb3/0xb8 Best Regards, Xudong Hao
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