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Bug#653381: linux-image-2.6.32-5-amd64: page allocation failures with virtio-net driver



Package: linux-2.6
Version: 2.6.32-39
Severity: normal

Hi,

We have a virtual machine now running as a KVM virtual machine. Before, this virtual
machine was running as a Xen domU.

The VM has been given the same amount of memory and number of cpu's as it had with Xen.

We configured the virtio-net driver for the network card on KVM.

After a few days, we got the following errors:

[144129.759313] swapper: page allocation failure. order:0, mode:0x20
[144129.763497] Pid: 0, comm: swapper Not tainted 2.6.32-5-amd64 #1
[144129.766429] Call Trace:
[144129.767395]  <IRQ>  [<ffffffff810ba7b3>] ? __alloc_pages_nodemask+0x59b/0x5fc
[144129.771028]  [<ffffffff812488f9>] ? __alloc_skb+0x69/0x15a
[144129.772814]  [<ffffffffa00f3e48>] ? try_fill_recv+0x8b/0x18b [virtio_net]
[144129.774783]  [<ffffffffa00f48b1>] ? virtnet_poll+0x543/0x5ca [virtio_net]
[144129.776712]  [<ffffffff8124fcee>] ? net_rx_action+0xae/0x1c9
[144129.778402]  [<ffffffff81053d2b>] ? __do_softirq+0xdd/0x1a6
[144129.780103]  [<ffffffffa00f3153>] ? skb_recv_done+0x28/0x34 [virtio_net]
[144129.782025]  [<ffffffff81011cac>] ? call_softirq+0x1c/0x30
[144129.783263]  [<ffffffff8101322b>] ? do_softirq+0x3f/0x7c
[144129.784341]  [<ffffffff81053b9b>] ? irq_exit+0x36/0x76
[144129.785379]  [<ffffffff81012922>] ? do_IRQ+0xa0/0xb6
[144129.786384]  [<ffffffff810114d3>] ? ret_from_intr+0x0/0x11
[144129.787463]  <EOI>  [<ffffffff8102c584>] ? native_safe_halt+0x2/0x3
[144129.788718]  [<ffffffff81017201>] ? default_idle+0x34/0x51
[144129.789835]  [<ffffffff8100fe97>] ? cpu_idle+0xa2/0xda
[144129.791406]  [<ffffffff814f3140>] ? early_idt_handler+0x0/0x71
[144129.793105]  [<ffffffff814f3cdd>] ? start_kernel+0x3dc/0x3e8
[144129.794156]  [<ffffffff814f33b7>] ? x86_64_start_kernel+0xf9/0x106
[144129.795274] Mem-Info:
[144129.795859] Node 0 DMA per-cpu:
[144129.796602] CPU    0: hi:    0, btch:   1 usd:   0
[144129.797524] CPU    1: hi:    0, btch:   1 usd:   0
[144129.799074] Node 0 DMA32 per-cpu:
[144129.800408] CPU    0: hi:  186, btch:  31 usd: 179
[144129.801861] CPU    1: hi:  186, btch:  31 usd:   0
[144129.803042] active_anon:64487 inactive_anon:23386 isolated_anon:0
[144129.803043]  active_file:153783 inactive_file:234184 isolated_file:0
[144129.803044]  unevictable:24 dirty:15979 writeback:0 unstable:0
[144129.803045]  free:2680 slab_reclaimable:26874 slab_unreclaimable:2397
[144129.803046]  mapped:11137 shmem:6661 pagetables:1456 bounce:0
[144129.809548] Node 0 DMA free:8016kB min:40kB low:48kB high:60kB active_anon:0kB inactive_anon:0kB active_file:7424kB inactive_file:416kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15352kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:24kB slab_unreclaimable:20kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[144129.820469] lowmem_reserve[]: 0 2004 2004 2004
[144129.822222] Node 0 DMA32 free:6920kB min:5704kB low:7128kB high:8556kB active_anon:257952kB inactive_anon:93540kB active_file:613916kB inactive_file:926392kB unevictable:96kB isolated(anon):0kB isolated(file):0kB present:2052308kB mlocked:96kB dirty:63844kB writeback:44kB mapped:44548kB shmem:26644kB slab_reclaimable:107064kB slab_unreclaimable:9640kB kernel_stack:1424kB pagetables:5824kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[144129.835406] lowmem_reserve[]: 0 0 0 0
[144129.836427] Node 0 DMA: 2*4kB 3*8kB 2*16kB 1*32kB 2*64kB 3*128kB 3*256kB 3*512kB 3*1024kB 1*2048kB 0*4096kB = 8032kB
[144129.839727] Node 0 DMA32: 142*4kB 132*8kB 29*16kB 19*32kB 8*64kB 7*128kB 3*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 6920kB
[144129.844512] 394354 total pagecache pages
[144129.845858] 398 pages in swap cache
[144129.847195] Swap cache stats: add 3826, delete 3428, find 139/193
[144129.849851] Free swap  = 3890228kB
[144129.851570] Total swap = 3903480kB
[144129.863549] 524285 pages RAM
[144129.865144] 8937 pages reserved
[144129.866586] 93937 pages shared
[144129.868061] 431928 pages non-shared
[144131.098419] swapper: page allocation failure. order:0, mode:0x20
[144131.102702] Pid: 0, comm: swapper Not tainted 2.6.32-5-amd64 #1
[144131.104570] Call Trace:
[144131.105813]  <IRQ>  [<ffffffff810ba7b3>] ? __alloc_pages_nodemask+0x59b/0x5fc
[144131.108489]  [<ffffffff812488f9>] ? __alloc_skb+0x69/0x15a
[144131.111075]  [<ffffffffa00f3e48>] ? try_fill_recv+0x8b/0x18b [virtio_net]
[144131.113546]  [<ffffffffa00f48b1>] ? virtnet_poll+0x543/0x5ca [virtio_net]
[144131.115731]  [<ffffffff8124fcee>] ? net_rx_action+0xae/0x1c9
[144131.117603]  [<ffffffff81053d2b>] ? __do_softirq+0xdd/0x1a6
[144131.119628]  [<ffffffffa00f3153>] ? skb_recv_done+0x28/0x34 [virtio_net]
[144131.122428]  [<ffffffff81011cac>] ? call_softirq+0x1c/0x30
[144131.124904]  [<ffffffff8101322b>] ? do_softirq+0x3f/0x7c
[144131.126660]  [<ffffffff81053b9b>] ? irq_exit+0x36/0x76
[144131.128446]  [<ffffffff81012922>] ? do_IRQ+0xa0/0xb6
[144131.130898]  [<ffffffff810114d3>] ? ret_from_intr+0x0/0x11
[144131.132971]  <EOI>  [<ffffffff8102c584>] ? native_safe_halt+0x2/0x3
[144131.136732]  [<ffffffff81017201>] ? default_idle+0x34/0x51
[144131.138703]  [<ffffffff8100fe97>] ? cpu_idle+0xa2/0xda
[144131.141466]  [<ffffffff814f3140>] ? early_idt_handler+0x0/0x71
[144131.143565]  [<ffffffff814f3cdd>] ? start_kernel+0x3dc/0x3e8
[144131.145425]  [<ffffffff814f33b7>] ? x86_64_start_kernel+0xf9/0x106
[144131.147482] Mem-Info:
[144131.148606] Node 0 DMA per-cpu:
[144131.149902] CPU    0: hi:    0, btch:   1 usd:   0
[144131.153697] CPU    1: hi:    0, btch:   1 usd:   0
[144131.156435] Node 0 DMA32 per-cpu:
[144131.157655] CPU    0: hi:  186, btch:  31 usd: 113
[144131.159126] CPU    1: hi:  186, btch:  31 usd: 203
[144131.160674] active_anon:64829 inactive_anon:22997 isolated_anon:0
[144131.160675]  active_file:189202 inactive_file:197861 isolated_file:0
[144131.160676]  unevictable:24 dirty:28274 writeback:5301 unstable:0
[144131.160677]  free:4021 slab_reclaimable:25628 slab_unreclaimable:3008
[144131.160678]  mapped:10924 shmem:6661 pagetables:1456 bounce:0
[144131.171120] Node 0 DMA free:8032kB min:40kB low:48kB high:60kB active_anon:0kB inactive_anon:0kB active_file:6984kB inactive_file:856kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15352kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:24kB slab_unreclaimable:24kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[144131.186470] lowmem_reserve[]: 0 2004 2004 2004
[144131.189902] Node 0 DMA32 free:5952kB min:5704kB low:7128kB high:8556kB active_anon:259440kB inactive_anon:91988kB active_file:752676kB inactive_file:785468kB unevictable:96kB isolated(anon):0kB isolated(file):0kB present:2052308kB mlocked:96kB dirty:65108kB writeback:58776kB mapped:43696kB shmem:26644kB slab_reclaimable:102296kB slab_unreclaimable:16208kB kernel_stack:1440kB pagetables:5824kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[144131.203075] lowmem_reserve[]: 0 0 0 0
[144131.203987] Node 0 DMA: 0*4kB 1*8kB 1*16kB 1*32kB 1*64kB 2*128kB 2*256kB 2*512kB 2*1024kB 2*2048kB 0*4096kB = 8056kB
[144131.206309] Node 0 DMA32: 924*4kB 84*8kB 59*16kB 25*32kB 11*64kB 7*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 9760kB
[144131.208726] 393872 total pagecache pages
[144131.210887] 363 pages in swap cache
[144131.212450] Swap cache stats: add 3844, delete 3481, find 141/197
[144131.213640] Free swap  = 3890240kB
[144131.214478] Total swap = 3903480kB
[144131.226723] 524285 pages RAM
[144131.228833] 8937 pages reserved
[144131.229930] 122743 pages shared
[144131.230986] 402750 pages non-shared
[144131.238394] cupsd: page allocation failure. order:0, mode:0x20
[144131.240013] Pid: 1343, comm: cupsd Not tainted 2.6.32-5-amd64 #1
[144131.240013] Call Trace:
[144131.240013]  <IRQ>  [<ffffffff810ba7b3>] ? __alloc_pages_nodemask+0x59b/0x5fc
[144131.240013]  [<ffffffff810e6b26>] ? new_slab+0x5b/0x1ca
[144131.240013]  [<ffffffff810e6e85>] ? __slab_alloc+0x1f0/0x39b
[144131.240013]  [<ffffffff812488ce>] ? __alloc_skb+0x3e/0x15a
[144131.240013]  [<ffffffff812488ce>] ? __alloc_skb+0x3e/0x15a
[144131.240013]  [<ffffffff810e7261>] ? kmem_cache_alloc_node+0x8b/0x10b
[144131.240013]  [<ffffffff812488ce>] ? __alloc_skb+0x3e/0x15a
[144131.240013]  [<ffffffff812498cc>] ? __netdev_alloc_skb+0x29/0x45
[144131.240013]  [<ffffffffa00f3dff>] ? try_fill_recv+0x42/0x18b [virtio_net]
[144131.240013]  [<ffffffffa00f48b1>] ? virtnet_poll+0x543/0x5ca [virtio_net]
[144131.240013]  [<ffffffff8124fcee>] ? net_rx_action+0xae/0x1c9
[144131.240013]  [<ffffffff81053d2b>] ? __do_softirq+0xdd/0x1a6
[144131.240013]  [<ffffffffa00f3153>] ? skb_recv_done+0x28/0x34 [virtio_net]
[144131.240013]  [<ffffffff81011cac>] ? call_softirq+0x1c/0x30
[144131.240013]  [<ffffffff8101322b>] ? do_softirq+0x3f/0x7c
[144131.240013]  [<ffffffff81053b9b>] ? irq_exit+0x36/0x76
[144131.240013]  [<ffffffff81012922>] ? do_IRQ+0xa0/0xb6
[144131.240013]  [<ffffffff810114d3>] ? ret_from_intr+0x0/0x11
[144131.240013]  <EOI>  [<ffffffff81195a29>] ? csum_partial+0x91/0x14f
[144131.240013]  [<ffffffff81246914>] ? skb_checksum+0x118/0x23f
[144131.240013]  [<ffffffff8124a079>] ? __skb_checksum_complete_head+0x15/0x55
[144131.240013]  [<ffffffff81285e9c>] ? tcp_checksum_complete_user+0x1f/0x3c
[144131.240013]  [<ffffffff8128672a>] ? tcp_rcv_established+0x3c5/0x6d9
[144131.240013]  [<ffffffff8128d9ff>] ? tcp_v4_do_rcv+0x1bb/0x376
[144131.240013]  [<ffffffff810114ce>] ? common_interrupt+0xe/0x13
[144131.240013]  [<ffffffff81243835>] ? release_sock+0x46/0xa0
[144131.240013]  [<ffffffff8127ee4b>] ? tcp_recvmsg+0x98b/0xa9e
[144131.240013]  [<ffffffff81242c1a>] ? sock_common_recvmsg+0x30/0x45
[144131.240013]  [<ffffffff81241169>] ? sock_recvmsg+0xa6/0xbe
[144131.240013]  [<ffffffff81064f92>] ? autoremove_wake_function+0x0/0x2e
[144131.240013]  [<ffffffff812fb380>] ? thread_return+0x79/0xe0
[144131.240013]  [<ffffffff8105a8cc>] ? lock_timer_base+0x26/0x4b
[144131.240013]  [<ffffffff8111907b>] ? ep_send_events_proc+0x56/0xf3
[144131.240013]  [<ffffffff81240c3d>] ? sockfd_lookup_light+0x1a/0x51
[144131.240013]  [<ffffffff812423d4>] ? sys_recvfrom+0xba/0x120
[144131.240013]  [<ffffffff8102cdc4>] ? pvclock_clocksource_read+0x3a/0x8b
[144131.240013]  [<ffffffff8106c503>] ? ktime_get_ts+0x68/0xb2
[144131.240013]  [<ffffffff81010b42>] ? system_call_fastpath+0x16/0x1b
[144131.240013] Mem-Info:
[144131.240013] Node 0 DMA per-cpu:
[144131.240013] CPU    0: hi:    0, btch:   1 usd:   0
[144131.240013] CPU    1: hi:    0, btch:   1 usd:   0
[144131.240013] Node 0 DMA32 per-cpu:
[144131.240013] CPU    0: hi:  186, btch:  31 usd: 172
[144131.240013] CPU    1: hi:  186, btch:  31 usd: 183
[144131.240013] active_anon:64860 inactive_anon:22997 isolated_anon:0
[144131.240013]  active_file:189915 inactive_file:196953 isolated_file:0
[144131.240013]  unevictable:24 dirty:12092 writeback:17267 unstable:0
[144131.240013]  free:2537 slab_reclaimable:25580 slab_unreclaimable:4396
[144131.240013]  mapped:10924 shmem:6661 pagetables:1456 bounce:0
[144131.240013] Node 0 DMA free:8032kB min:40kB low:48kB high:60kB active_anon:0kB inactive_anon:0kB active_file:6984kB inactive_file:856kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15352kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:24kB slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[144131.240013] lowmem_reserve[]: 0 2004 2004 2004
[144131.240013] Node 0 DMA32 free:2116kB min:5704kB low:7128kB high:8556kB active_anon:259440kB inactive_anon:91988kB active_file:752676kB inactive_file:786956kB unevictable:96kB isolated(anon):0kB isolated(file):0kB present:2052308kB mlocked:96kB dirty:48368kB writeback:69068kB mapped:43696kB shmem:26644kB slab_reclaimable:102296kB slab_unreclaimable:17580kB kernel_stack:1440kB pagetables:5824kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[144131.240013] lowmem_reserve[]: 0 0 0 0
[144131.240013] Node 0 DMA: 0*4kB 2*8kB 1*16kB 2*32kB 2*64kB 3*128kB 3*256kB 3*512kB 3*1024kB 1*2048kB 0*4096kB = 8032kB
[144131.240013] Node 0 DMA32: 1*4kB 0*8kB 0*16kB 0*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 2116kB
[144131.240013] 393872 total pagecache pages
[144131.240013] 363 pages in swap cache
[144131.240013] Swap cache stats: add 3844, delete 3481, find 141/197
[144131.240013] Free swap  = 3890240kB
[144131.240013] Total swap = 3903480kB
[144131.240013] 524285 pages RAM
[144131.240013] 8937 pages reserved
[144131.240013] 122730 pages shared
[144131.240013] 404793 pages non-shared
[144131.240013] SLUB: Unable to allocate memory on node -1 (gfp=0x20)
[144131.240013]   cache: kmalloc-256, object size: 256, buffer size: 256, default order: 0, min order: 0
[144131.240013]   node 0: slabs: 115, objs: 1840, free: 0
[144131.422897] cupsd: page allocation failure. order:0, mode:0x20
[144131.425422] Pid: 1343, comm: cupsd Not tainted 2.6.32-5-amd64 #1
[144131.428069] Call Trace:
[144131.429412]  <IRQ>  [<ffffffff810ba7b3>] ? __alloc_pages_nodemask+0x59b/0x5fc
[144131.432989]  [<ffffffff812488f9>] ? __alloc_skb+0x69/0x15a
[144131.436712]  [<ffffffffa00f3e48>] ? try_fill_recv+0x8b/0x18b [virtio_net]
[144131.440853]  [<ffffffffa00f48b1>] ? virtnet_poll+0x543/0x5ca [virtio_net]
[144131.443394]  [<ffffffff8105a6d4>] ? run_timer_softirq+0x222/0x268
[144131.445396]  [<ffffffff8124fcee>] ? net_rx_action+0xae/0x1c9
[144131.447321]  [<ffffffff81053d2b>] ? __do_softirq+0xdd/0x1a6
[144131.449516]  [<ffffffffa00f3153>] ? skb_recv_done+0x28/0x34 [virtio_net]
[144131.453417]  [<ffffffff81011cac>] ? call_softirq+0x1c/0x30
[144131.456396]  [<ffffffff8101322b>] ? do_softirq+0x3f/0x7c
[144131.458209]  [<ffffffff81053b9b>] ? irq_exit+0x36/0x76
[144131.459919]  [<ffffffff81012922>] ? do_IRQ+0xa0/0xb6
[144131.461443]  [<ffffffff810114d3>] ? ret_from_intr+0x0/0x11
[144131.463083]  <EOI>  [<ffffffff81195a29>] ? csum_partial+0x91/0x14f
[144131.465081]  [<ffffffff81246914>] ? skb_checksum+0x118/0x23f
[144131.466796]  [<ffffffff8124a079>] ? __skb_checksum_complete_head+0x15/0x55
[144131.470245]  [<ffffffff81285e9c>] ? tcp_checksum_complete_user+0x1f/0x3c
[144131.473514]  [<ffffffff8128672a>] ? tcp_rcv_established+0x3c5/0x6d9
[144131.475570]  [<ffffffff8128d9ff>] ? tcp_v4_do_rcv+0x1bb/0x376
[144131.477606]  [<ffffffff810114ce>] ? common_interrupt+0xe/0x13
[144131.479465]  [<ffffffff81243835>] ? release_sock+0x46/0xa0
[144131.481238]  [<ffffffff8127ee4b>] ? tcp_recvmsg+0x98b/0xa9e
[144131.482995]  [<ffffffff81242c1a>] ? sock_common_recvmsg+0x30/0x45
[144131.486590]  [<ffffffff81241169>] ? sock_recvmsg+0xa6/0xbe
[144131.489598]  [<ffffffff81064f92>] ? autoremove_wake_function+0x0/0x2e
[144131.491605]  [<ffffffff812fb380>] ? thread_return+0x79/0xe0
[144131.493358]  [<ffffffff8105a8cc>] ? lock_timer_base+0x26/0x4b
[144131.495181]  [<ffffffff8111907b>] ? ep_send_events_proc+0x56/0xf3
[144131.497141]  [<ffffffff81240c3d>] ? sockfd_lookup_light+0x1a/0x51
[144131.498982]  [<ffffffff812423d4>] ? sys_recvfrom+0xba/0x120
[144131.502230]  [<ffffffff8102cdc4>] ? pvclock_clocksource_read+0x3a/0x8b
[144131.505648]  [<ffffffff8106c503>] ? ktime_get_ts+0x68/0xb2
[144131.507557]  [<ffffffff81010b42>] ? system_call_fastpath+0x16/0x1b
[144131.509648] Mem-Info:
[144131.510713] Node 0 DMA per-cpu:
[144131.512062] CPU    0: hi:    0, btch:   1 usd:   0
[144131.513518] CPU    1: hi:    0, btch:   1 usd:   0
[144131.516655] Node 0 DMA32 per-cpu:
[144131.519316] CPU    0: hi:  186, btch:  31 usd: 184
[144131.520828] CPU    1: hi:  186, btch:  31 usd: 185
[144131.522354] active_anon:64922 inactive_anon:22824 isolated_anon:96
[144131.522363]  active_file:194414 inactive_file:192466 isolated_file:0
[144131.522364]  unevictable:24 dirty:12061 writeback:6138 unstable:0
[144131.522365]  free:3741 slab_reclaimable:25367 slab_unreclaimable:3241
[144131.522365]  mapped:10924 shmem:6661 pagetables:1456 bounce:0
[144131.531871] Node 0 DMA free:8032kB min:40kB low:48kB high:60kB active_anon:0kB inactive_anon:0kB active_file:6856kB inactive_file:984kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15352kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:24kB slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:32 all_unreclaimable? no
[144131.546224] lowmem_reserve[]: 0 2004 2004 2004
[144131.549010] Node 0 DMA32 free:7772kB min:5704kB low:7128kB high:8556kB active_anon:259688kB inactive_anon:91296kB active_file:770836kB inactive_file:768844kB unevictable:96kB isolated(anon):384kB isolated(file):0kB present:2052308kB mlocked:96kB dirty:48244kB writeback:17360kB mapped:43696kB shmem:26644kB slab_reclaimable:101348kB slab_unreclaimable:12204kB kernel_stack:1440kB pagetables:5824kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[144131.557357] lowmem_reserve[]: 0 0 0 0
[144131.558517] Node 0 DMA: 0*4kB 2*8kB 1*16kB 2*32kB 2*64kB 3*128kB 3*256kB 3*512kB 3*1024kB 1*2048kB 0*4096kB = 8032kB
[144131.562561] Node 0 DMA32: 31*4kB 20*8kB 21*16kB 20*32kB 16*64kB 11*128kB 8*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 7788kB
[144131.565558] 393872 total pagecache pages
[144131.566403] 361 pages in swap cache
[144131.567219] Swap cache stats: add 3844, delete 3483, find 143/199
[144131.568389] Free swap  = 3890248kB
[144131.569163] Total swap = 3903480kB
[144131.582735] 524285 pages RAM
[144131.585526] 8937 pages reserved
[144131.586554] 122828 pages shared
[144131.587653] 403277 pages non-shared


These errors seem to come from the virtio drivers?

>From what I can find, this looks a lot like bug #592187, but this bug
is marked as fixed in the kernel version we're running.

>From what I can tell from the trace, almost no swap is being used?

When running under Xen, the virtual machine never had any page allocation failures so I assume
the amount of memory dedicated to the VM is sufficient (2GB). 

Regards,

Rik

-- Package-specific info:
** Version:
Linux version 2.6.32-5-amd64 (Debian 2.6.32-39) (dannf@debian.org) (gcc version 4.3.5 (Debian 4.3.5-4) ) #1 SMP Thu Nov 3 03:41:26 UTC 2011

** Command line:
BOOT_IMAGE=/vmlinuz-2.6.32-5-amd64 root=/dev/mapper/vg_oxygen-root ro ipv6.disable=1 console=tty0 console=ttyS0,38400n8

** Not tainted

** Kernel log:
[144131.240013]  [<ffffffff8105a8cc>] ? lock_timer_base+0x26/0x4b
[144131.240013]  [<ffffffff8111907b>] ? ep_send_events_proc+0x56/0xf3
[144131.240013]  [<ffffffff81240c3d>] ? sockfd_lookup_light+0x1a/0x51
[144131.240013]  [<ffffffff812423d4>] ? sys_recvfrom+0xba/0x120
[144131.240013]  [<ffffffff8102cdc4>] ? pvclock_clocksource_read+0x3a/0x8b
[144131.240013]  [<ffffffff8106c503>] ? ktime_get_ts+0x68/0xb2
[144131.240013]  [<ffffffff81010b42>] ? system_call_fastpath+0x16/0x1b
[144131.240013] Mem-Info:
[144131.240013] Node 0 DMA per-cpu:
[144131.240013] CPU    0: hi:    0, btch:   1 usd:   0
[144131.240013] CPU    1: hi:    0, btch:   1 usd:   0
[144131.240013] Node 0 DMA32 per-cpu:
[144131.240013] CPU    0: hi:  186, btch:  31 usd: 172
[144131.240013] CPU    1: hi:  186, btch:  31 usd: 183
[144131.240013] active_anon:64860 inactive_anon:22997 isolated_anon:0
[144131.240013]  active_file:189915 inactive_file:196953 isolated_file:0
[144131.240013]  unevictable:24 dirty:12092 writeback:17267 unstable:0
[144131.240013]  free:2537 slab_reclaimable:25580 slab_unreclaimable:4396
[144131.240013]  mapped:10924 shmem:6661 pagetables:1456 bounce:0
[144131.240013] Node 0 DMA free:8032kB min:40kB low:48kB high:60kB active_anon:0kB inactive_anon:0kB active_file:6984kB inactive_file:856kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15352kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:24kB slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[144131.240013] lowmem_reserve[]: 0 2004 2004 2004
[144131.240013] Node 0 DMA32 free:2116kB min:5704kB low:7128kB high:8556kB active_anon:259440kB inactive_anon:91988kB active_file:752676kB inactive_file:786956kB unevictable:96kB isolated(anon):0kB isolated(file):0kB present:2052308kB mlocked:96kB dirty:48368kB writeback:69068kB mapped:43696kB shmem:26644kB slab_reclaimable:102296kB slab_unreclaimable:17580kB kernel_stack:1440kB pagetables:5824kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[144131.240013] lowmem_reserve[]: 0 0 0 0
[144131.240013] Node 0 DMA: 0*4kB 2*8kB 1*16kB 2*32kB 2*64kB 3*128kB 3*256kB 3*512kB 3*1024kB 1*2048kB 0*4096kB = 8032kB
[144131.240013] Node 0 DMA32: 1*4kB 0*8kB 0*16kB 0*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 2116kB
[144131.240013] 393872 total pagecache pages
[144131.240013] 363 pages in swap cache
[144131.240013] Swap cache stats: add 3844, delete 3481, find 141/197
[144131.240013] Free swap  = 3890240kB
[144131.240013] Total swap = 3903480kB
[144131.240013] 524285 pages RAM
[144131.240013] 8937 pages reserved
[144131.240013] 122730 pages shared
[144131.240013] 404793 pages non-shared
[144131.240013] SLUB: Unable to allocate memory on node -1 (gfp=0x20)
[144131.240013]   cache: kmalloc-256, object size: 256, buffer size: 256, default order: 0, min order: 0
[144131.240013]   node 0: slabs: 115, objs: 1840, free: 0
[144131.422897] cupsd: page allocation failure. order:0, mode:0x20
[144131.425422] Pid: 1343, comm: cupsd Not tainted 2.6.32-5-amd64 #1
[144131.428069] Call Trace:
[144131.429412]  <IRQ>  [<ffffffff810ba7b3>] ? __alloc_pages_nodemask+0x59b/0x5fc
[144131.432989]  [<ffffffff812488f9>] ? __alloc_skb+0x69/0x15a
[144131.436712]  [<ffffffffa00f3e48>] ? try_fill_recv+0x8b/0x18b [virtio_net]
[144131.440853]  [<ffffffffa00f48b1>] ? virtnet_poll+0x543/0x5ca [virtio_net]
[144131.443394]  [<ffffffff8105a6d4>] ? run_timer_softirq+0x222/0x268
[144131.445396]  [<ffffffff8124fcee>] ? net_rx_action+0xae/0x1c9
[144131.447321]  [<ffffffff81053d2b>] ? __do_softirq+0xdd/0x1a6
[144131.449516]  [<ffffffffa00f3153>] ? skb_recv_done+0x28/0x34 [virtio_net]
[144131.453417]  [<ffffffff81011cac>] ? call_softirq+0x1c/0x30
[144131.456396]  [<ffffffff8101322b>] ? do_softirq+0x3f/0x7c
[144131.458209]  [<ffffffff81053b9b>] ? irq_exit+0x36/0x76
[144131.459919]  [<ffffffff81012922>] ? do_IRQ+0xa0/0xb6
[144131.461443]  [<ffffffff810114d3>] ? ret_from_intr+0x0/0x11
[144131.463083]  <EOI>  [<ffffffff81195a29>] ? csum_partial+0x91/0x14f
[144131.465081]  [<ffffffff81246914>] ? skb_checksum+0x118/0x23f
[144131.466796]  [<ffffffff8124a079>] ? __skb_checksum_complete_head+0x15/0x55
[144131.470245]  [<ffffffff81285e9c>] ? tcp_checksum_complete_user+0x1f/0x3c
[144131.473514]  [<ffffffff8128672a>] ? tcp_rcv_established+0x3c5/0x6d9
[144131.475570]  [<ffffffff8128d9ff>] ? tcp_v4_do_rcv+0x1bb/0x376
[144131.477606]  [<ffffffff810114ce>] ? common_interrupt+0xe/0x13
[144131.479465]  [<ffffffff81243835>] ? release_sock+0x46/0xa0
[144131.481238]  [<ffffffff8127ee4b>] ? tcp_recvmsg+0x98b/0xa9e
[144131.482995]  [<ffffffff81242c1a>] ? sock_common_recvmsg+0x30/0x45
[144131.486590]  [<ffffffff81241169>] ? sock_recvmsg+0xa6/0xbe
[144131.489598]  [<ffffffff81064f92>] ? autoremove_wake_function+0x0/0x2e
[144131.491605]  [<ffffffff812fb380>] ? thread_return+0x79/0xe0
[144131.493358]  [<ffffffff8105a8cc>] ? lock_timer_base+0x26/0x4b
[144131.495181]  [<ffffffff8111907b>] ? ep_send_events_proc+0x56/0xf3
[144131.497141]  [<ffffffff81240c3d>] ? sockfd_lookup_light+0x1a/0x51
[144131.498982]  [<ffffffff812423d4>] ? sys_recvfrom+0xba/0x120
[144131.502230]  [<ffffffff8102cdc4>] ? pvclock_clocksource_read+0x3a/0x8b
[144131.505648]  [<ffffffff8106c503>] ? ktime_get_ts+0x68/0xb2
[144131.507557]  [<ffffffff81010b42>] ? system_call_fastpath+0x16/0x1b
[144131.509648] Mem-Info:
[144131.510713] Node 0 DMA per-cpu:
[144131.512062] CPU    0: hi:    0, btch:   1 usd:   0
[144131.513518] CPU    1: hi:    0, btch:   1 usd:   0
[144131.516655] Node 0 DMA32 per-cpu:
[144131.519316] CPU    0: hi:  186, btch:  31 usd: 184
[144131.520828] CPU    1: hi:  186, btch:  31 usd: 185
[144131.522354] active_anon:64922 inactive_anon:22824 isolated_anon:96
[144131.522363]  active_file:194414 inactive_file:192466 isolated_file:0
[144131.522364]  unevictable:24 dirty:12061 writeback:6138 unstable:0
[144131.522365]  free:3741 slab_reclaimable:25367 slab_unreclaimable:3241
[144131.522365]  mapped:10924 shmem:6661 pagetables:1456 bounce:0
[144131.531871] Node 0 DMA free:8032kB min:40kB low:48kB high:60kB active_anon:0kB inactive_anon:0kB active_file:6856kB inactive_file:984kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15352kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:24kB slab_unreclaimable:4kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:32 all_unreclaimable? no
[144131.546224] lowmem_reserve[]: 0 2004 2004 2004
[144131.549010] Node 0 DMA32 free:7772kB min:5704kB low:7128kB high:8556kB active_anon:259688kB inactive_anon:91296kB active_file:770836kB inactive_file:768844kB unevictable:96kB isolated(anon):384kB isolated(file):0kB present:2052308kB mlocked:96kB dirty:48244kB writeback:17360kB mapped:43696kB shmem:26644kB slab_reclaimable:101348kB slab_unreclaimable:12204kB kernel_stack:1440kB pagetables:5824kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[144131.557357] lowmem_reserve[]: 0 0 0 0
[144131.558517] Node 0 DMA: 0*4kB 2*8kB 1*16kB 2*32kB 2*64kB 3*128kB 3*256kB 3*512kB 3*1024kB 1*2048kB 0*4096kB = 8032kB
[144131.562561] Node 0 DMA32: 31*4kB 20*8kB 21*16kB 20*32kB 16*64kB 11*128kB 8*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 7788kB
[144131.565558] 393872 total pagecache pages
[144131.566403] 361 pages in swap cache
[144131.567219] Swap cache stats: add 3844, delete 3483, find 143/199
[144131.568389] Free swap  = 3890248kB
[144131.569163] Total swap = 3903480kB
[144131.582735] 524285 pages RAM
[144131.585526] 8937 pages reserved
[144131.586554] 122828 pages shared
[144131.587653] 403277 pages non-shared

** Model information
sys_vendor: Red Hat
product_name: KVM
product_version: RHEL 6.2.0 PC
chassis_vendor: Red Hat
chassis_version: 
bios_vendor: Seabios
bios_version: 0.5.1

** Loaded modules:
Module                  Size  Used by
autofs4                20805  37 
parport_pc             18855  0 
ppdev                   5030  0 
lp                      7462  0 
parport                27954  3 parport_pc,ppdev,lp
nfsd                  254782  2 
exportfs                3170  1 nfsd
nfs                   241226  2 
lockd                  57619  2 nfsd,nfs
fscache                29834  1 nfs
nfs_acl                 2031  2 nfsd,nfs
auth_rpcgss            33508  2 nfsd,nfs
sunrpc                161589  13 nfsd,nfs,lockd,nfs_acl,auth_rpcgss
ipip                    6711  0 
tunnel4                 1973  1 ipip
ipt_REJECT              1953  1 
xt_tcpudp               2319  3 
iptable_filter          2258  1 
ip_tables              13915  1 iptable_filter
x_tables               12845  3 ipt_REJECT,xt_tcpudp,ip_tables
loop                   11799  0 
joydev                  8459  0 
snd_pcm                60487  0 
snd_timer              15598  1 snd_pcm
snd                    46526  2 snd_pcm,snd_timer
soundcore               4598  1 snd
evdev                   7352  2 
processor              29935  0 
snd_page_alloc          6249  1 snd_pcm
psmouse                49937  0 
serio_raw               3752  0 
i2c_piix4               8328  0 
pcspkr                  1699  0 
virtio_balloon          2961  0 
i2c_core               15819  1 i2c_piix4
button                  4650  0 
usbhid                 33292  0 
hid                    63257  1 usbhid
ext3                  106710  5 
jbd                    37221  1 ext3
mbcache                 5050  1 ext3
dm_mod                 53898  15 
uhci_hcd               18521  0 
ata_generic             3239  0 
virtio_blk              4225  3 
virtio_net             10573  0 
ehci_hcd               32081  0 
ata_piix               21124  0 
libata                133776  2 ata_generic,ata_piix
floppy                 49087  0 
usbcore               122674  4 usbhid,uhci_hcd,ehci_hcd
nls_base                6377  1 usbcore
scsi_mod              126533  1 libata
virtio_pci              5511  0 
virtio_ring             3258  1 virtio_pci
virtio                  3309  4 virtio_balloon,virtio_blk,virtio_net,virtio_pci
thermal                11674  0 
thermal_sys            11942  2 processor,thermal

** Network interface configuration:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback
        up /sbin/iptables-restore < /etc/network/firewall

# The primary network interface
auto eth0
iface eth0 inet static
        address 134.58.59.69
        netmask 255.255.255.0
        gateway 134.58.59.254

# IP in IP interface for LDAP
auto tunl0
iface tunl0 inet static
        address 10.33.138.138
        netmask 255.255.255.255
        broadcast 10.33.138.138

# Secondary interface on campusnet: used for wake-on-lan
# of computer class pc's
auto eth1
iface eth1 inet manual
        up /sbin/ip link set $IFACE up
        down /sbin/ip link set $IFACE down


** Network status:
*** IP interfaces and addresses:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
    link/ether 00:16:3e:e2:30:d1 brd ff:ff:ff:ff:ff:ff
    inet 134.58.59.69/24 brd 134.58.59.255 scope global eth0
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
    link/ether 00:16:3e:84:62:98 brd ff:ff:ff:ff:ff:ff
4: tunl0: <NOARP,UP,LOWER_UP> mtu 1480 qdisc noqueue state UNKNOWN 
    link/ipip 0.0.0.0 brd 0.0.0.0
    inet 10.33.138.138/32 brd 10.33.138.138 scope global tunl0

*** Device statistics:
Inter-|   Receive                                                |  Transmit
 face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
    lo:171479942  976839    0    0    0     0          0         0 171479942  976839    0    0    0     0       0          0
  eth0:6241870856 15315117    0    0    0     0          0         0 9328054318 11138986    0    0    0     0       0          0
  eth1:18299491  259606    0    0    0     0          0         0        0       0    0    0    0     0       0          0
 tunl0:347654021 3772086    0    0    0     0          0         0        0       0    0    0    0     0       0          0

*** Protocol statistics:
Ip:
    19999247 total packets received
    11499 with invalid addresses
    0 forwarded
    15 with unknown protocol
    0 incoming packets discarded
    19881244 incoming packets delivered
    12115807 requests sent out
    6 reassemblies required
    3 packets reassembled ok
Icmp:
    41462 ICMP messages received
    9 input ICMP message failed.
    ICMP input histogram:
        destination unreachable: 39191
        timeout in transit: 24
        echo requests: 2241
    6977 ICMP messages sent
    0 ICMP messages failed
    ICMP output histogram:
        destination unreachable: 4736
        echo replies: 2241
IcmpMsg:
        InType3: 39191
        InType8: 2241
        InType11: 24
        OutType0: 2241
        OutType3: 4736
Tcp:
    9363 active connections openings
    479420 passive connection openings
    4 failed connection attempts
    8439 connection resets received
    83 connections established
    13413470 segments received
    9423123 segments send out
    20430 segments retransmited
    0 bad segments received.
    114855 resets sent
Udp:
    2645040 packets received
    4578 packets to unknown port received.
    0 packet receive errors
    2665285 packets sent
UdpLite:
TcpExt:
    39565 TCP sockets finished time wait in fast timer
    10136 delayed acks sent
    240 delayed acks further delayed because of locked socket
    Quick ack mode was activated 4016 times
    22054 packets directly queued to recvmsg prequeue.
    27323402 bytes directly in process context from backlog
    341981 bytes directly received in process context from prequeue
    4829746 packet headers predicted
    20170 packets header predicted and directly queued to user
    4645768 acknowledgments not containing data payload received
    1964205 predicted acknowledgments
    78 times recovered from packet loss due to fast retransmit
    8035 times recovered from packet loss by selective acknowledgements
    Detected reordering 429 times using FACK
    Detected reordering 1493 times using SACK
    Detected reordering 2 times using reno fast retransmit
    Detected reordering 324 times using time stamp
    887 congestion windows fully recovered without slow start
    2404 congestion windows partially recovered using Hoe heuristic
    6018 congestion windows recovered without slow start by DSACK
    785 congestion windows recovered without slow start after partial ack
    15 TCP data loss events
    3 timeouts after SACK recovery
    462 timeouts in loss state
    11645 fast retransmits
    7507 forward retransmits
    17 retransmits in slow start
    793 other TCP timeouts
    2 classic Reno fast retransmits failed
    4016 DSACKs sent for old packets
    17412 DSACKs received
    2 DSACKs for out of order packets received
    2139 connections reset due to unexpected data
    8834 connections reset due to early user close
    TCPDSACKIgnoredOld: 4444
    TCPDSACKIgnoredNoUndo: 432
    TCPSackShifted: 31565
    TCPSackMerged: 59103
    TCPSackShiftFallback: 820787
IpExt:
    InMcastPkts: 6743
    InBcastPkts: 1270
    InOctets: -2045815070
    OutOctets: 753653900
    InMcastOctets: 215776
    InBcastOctets: 376907


** PCI devices:
00:00.0 Host bridge [0600]: Intel Corporation 440FX - 82441FX PMC [Natoma] [8086:1237] (rev 02)
	Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100]
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:01.0 ISA bridge [0601]: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] [8086:7000]
	Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0

00:01.1 IDE interface [0101]: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] [8086:7010] (prog-if 80 [Master])
	Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Region 0: [virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8]
	Region 1: [virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1]
	Region 2: [virtual] Memory at 00000170 (32-bit, non-prefetchable) [size=8]
	Region 3: [virtual] Memory at 00000370 (type 3, non-prefetchable) [size=1]
	Region 4: I/O ports at c000 [size=16]
	Kernel driver in use: ata_piix

00:01.2 USB Controller [0c03]: Intel Corporation 82371SB PIIX3 USB [Natoma/Triton II] [8086:7020] (rev 01) (prog-if 00 [UHCI])
	Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin D routed to IRQ 10
	Region 4: I/O ports at c020 [size=32]
	Kernel driver in use: uhci_hcd

00:01.3 Bridge [0680]: Intel Corporation 82371AB/EB/MB PIIX4 ACPI [8086:7113] (rev 03)
	Subsystem: Red Hat, Inc Qemu virtual machine [1af4:1100]
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Interrupt: pin A routed to IRQ 9
	Kernel driver in use: piix4_smbus

00:02.0 VGA compatible controller [0300]: Cirrus Logic GD 5446 [1013:00b8] (prog-if 00 [VGA controller])
	Subsystem: Red Hat, Inc Device [1af4:1100]
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Region 0: Memory at f0000000 (32-bit, prefetchable) [size=32M]
	Region 1: Memory at f2000000 (32-bit, non-prefetchable) [size=4K]
	Expansion ROM at f2010000 [disabled] [size=64K]

00:03.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000]
	Subsystem: Red Hat, Inc Device [1af4:0001]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 11
	Region 0: I/O ports at c040 [size=32]
	Region 1: Memory at f2020000 (32-bit, non-prefetchable) [size=4K]
	Expansion ROM at f2030000 [disabled] [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: virtio-pci

00:04.0 Ethernet controller [0200]: Red Hat, Inc Virtio network device [1af4:1000]
	Subsystem: Red Hat, Inc Device [1af4:0001]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 10
	Region 0: I/O ports at c060 [size=32]
	Region 1: Memory at f2040000 (32-bit, non-prefetchable) [size=4K]
	Expansion ROM at f2050000 [disabled] [size=64K]
	Capabilities: <access denied>
	Kernel driver in use: virtio-pci

00:05.0 SCSI storage controller [0100]: Red Hat, Inc Virtio block device [1af4:1001]
	Subsystem: Red Hat, Inc Device [1af4:0002]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 10
	Region 0: I/O ports at c080 [size=64]
	Region 1: Memory at f2060000 (32-bit, non-prefetchable) [size=4K]
	Capabilities: <access denied>
	Kernel driver in use: virtio-pci

00:06.0 RAM memory [0500]: Red Hat, Inc Virtio memory balloon [1af4:1002]
	Subsystem: Red Hat, Inc Device [1af4:0005]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 11
	Region 0: I/O ports at c0c0 [size=32]
	Kernel driver in use: virtio-pci


** USB devices:
not available


-- System Information:
Debian Release: 6.0.3
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages linux-image-2.6.32-5-amd64 depends on:
ii  debconf [debconf-2.0]         1.5.36.1   Debian configuration management sy
ii  initramfs-tools [linux-initra 0.98.8     tools for generating an initramfs
ii  linux-base                    2.6.32-39  Linux image base package
ii  module-init-tools             3.12-1     tools for managing Linux kernel mo

Versions of packages linux-image-2.6.32-5-amd64 recommends:
ii  firmware-linux-free           2.6.32-39  Binary firmware for various driver

Versions of packages linux-image-2.6.32-5-amd64 suggests:
pn  grub | lilo                   <none>     (no description available)
pn  linux-doc-2.6.32              <none>     (no description available)

Versions of packages linux-image-2.6.32-5-amd64 is related to:
pn  firmware-bnx2                 <none>     (no description available)
pn  firmware-bnx2x                <none>     (no description available)
pn  firmware-ipw2x00              <none>     (no description available)
pn  firmware-ivtv                 <none>     (no description available)
pn  firmware-iwlwifi              <none>     (no description available)
pn  firmware-linux                <none>     (no description available)
pn  firmware-linux-nonfree        <none>     (no description available)
pn  firmware-qlogic               <none>     (no description available)
pn  firmware-ralink               <none>     (no description available)
pn  xen-hypervisor                <none>     (no description available)

-- debconf information:
  linux-image-2.6.32-5-amd64/postinst/ignoring-do-bootloader-2.6.32-5-amd64:
  linux-image-2.6.32-5-amd64/postinst/depmod-error-initrd-2.6.32-5-amd64: false
  linux-image-2.6.32-5-amd64/prerm/removing-running-kernel-2.6.32-5-amd64: true
  linux-image-2.6.32-5-amd64/postinst/missing-firmware-2.6.32-5-amd64:



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