Xen users - Feb 2006 - Repeated kernel "oops" / oom-killer with Ralph Passgang''s xen 3.0.0 Debian packages

Hi,
        
One of my servers has had its dom0 "oops" over and over twice in the
last week.  Unfortunately this is newly deployed so I have no idea
if it is down to Xen or not.

xen_changeset          : Mon Dec 12 18:47:47 2005 +0100 8270:4ad23e798798

dom0 kernel is a vanilla 2.6.12 with Ralph''s .6+xen kernel patch
applied.  x86_32 sarge packages were used.  The .config is attached.
Please let me know if there is any other info or debugging that you
need me to do.

Here''s what I managed to copy off the serial console:

 [<c01442c0>] max_sane_readahead+0x30/0x50
 [<c013dda7>] filemap_nopage+0x2c7/0x3e0
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c03eb958>] init_centaur+0x148/0x1e0
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c014da0f>] do_no_page+0xaf/0x3c0
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c014b269>] pte_alloc_map+0x49/0x1d0
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c014df90>] handle_mm_fault+0xf0/0x1d0
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c03f0b64>] kmem_cache_init+0x294/0x330
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c011507c>] do_page_fault+0x1cc/0x66a
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c01175e8>] recalc_task_prio+0x88/0x150
 [<c02eeedd>] schedule+0x3bd/0x680
 [<c0124929>] sys_alarm+0x39/0x60
 [<c0114eb0>] do_page_fault+0x0/0x66a
 [<c0108c17>] error_code+0x2b/0x30
lowmem_reserve[]: 0 0 0
DMA: 1*4kB 0*8kB 0*16kB 1*32kB 0*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB
0*4096kB = 548kB
Normal: empty
HighMem: empty
Swap cache: add 120470, delete 120465, find 45260/94674, race 0+2
Free swap  = 2096316kB
Total swap = 2096376kB
oom-killer: gfp_mask=0x1d2
DMA per-cpu:
cpu 0 hot: low 30, high 90, batch 15
cpu 0 cold: low 0, high 30, batch 15
Normal per-cpu: empty
HighMem per-cpu: empty

Free pages:         548kB (0kB HighMem)
Active:60 inactive:186 dirty:1 writeback:0 unstable:0 free:137 slab:14184
mapped:19 pagetables:3
DMA free:548kB min:1492kB low:1864kB high:2236kB active:240kB inactive:744kB
present:139264kB pages_scanned:381 all_unreclaimable? yes
lowmem_reserve[]: 0 0 0
Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB
pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB
present:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
DMA: 1*4kB 0*8kB 0*16kB 1*32kB 0*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB
0*4096kB = 548kB
Normal: empty
HighMem: empty
Swap cache: add 120470, delete 120465, find 45260/94674, race 0+2
printk: 51 messages suppressed.
init: page allocation failure. order:0, mode:0x20
 [<c01417a3>] __alloc_pages+0x2b3/0x430
 [<c916d528>] br_nf_forward_finish+0xb8/0x140 [bridge]
 [<c0144611>] kmem_getpages+0x31/0xa0
 [<c9167d70>] br_forward_finish+0x0/0x70 [bridge]
 [<c014537e>] cache_grow+0x9e/0x190
 [<c01455bd>] cache_alloc_refill+0x14d/0x220
 [<c9167d70>] br_forward_finish+0x0/0x70 [bridge]
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c0145899>] kmem_cache_alloc+0x69/0x70
 [<c916d132>] br_nf_pre_routing+0x1b2/0x480 [bridge]
 [<c9168990>] br_pass_frame_up_finish+0x0/0x20 [bridge]
 [<c029631e>] nf_hook_slow+0x6e/0x100
 [<c0296018>] nf_iterate+0x78/0x90
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c029631e>] nf_hook_slow+0x6e/0x100
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c9168d59>] br_handle_frame+0x1f9/0x270 [bridge]
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c028b894>] netif_receive_skb+0x154/0x2f0
 [<c028bad6>] process_backlog+0xa6/0x160
 [<c028bc15>] net_rx_action+0x85/0x140
 [<c0120315>] __do_softirq+0x95/0xb0
 [<c012037d>] do_softirq+0x4d/0x50
 [<c010d062>] do_IRQ+0x22/0x30
 [<c01048a0>] evtchn_do_upcall+0x70/0xa0
 [<c0108c48>] hypervisor_callback+0x2c/0x34
 [<c010482c>] force_evtchn_callback+0xc/0x10
 [<c011bdde>] release_console_sem+0x5e/0xd0
 [<c011bc07>] vprintk+0x197/0x260
 [<c011bc07>] vprintk+0x197/0x260
 [<c010d062>] do_IRQ+0x22/0x30
 [<c01048a0>] evtchn_do_upcall+0x70/0xa0
 [<c0108c48>] hypervisor_callback+0x2c/0x34
 [<c011ba67>] printk+0x17/0x20
 [<c01546d5>] show_swap_cache_info+0x45/0x80
 [<c0142173>] show_free_areas+0x2f3/0x3b0
 [<c01407b5>] out_of_memory+0x35/0x90
 [<c0141836>] __alloc_pages+0x346/0x430
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c0143da0>] __do_page_cache_readahead+0x100/0x180
 [<c03eb9fc>] centaur_init_cpu+0xc/0x10
 [<c01442c0>] max_sane_readahead+0x30/0x50
 [<c013dda7>] filemap_nopage+0x2c7/0x3e0
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c03eb958>] init_centaur+0x148/0x1e0
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c014da0f>] do_no_page+0xaf/0x3c0
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c014b269>] pte_alloc_map+0x49/0x1d0
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c014df90>] handle_mm_fault+0xf0/0x1d0
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c03f0b64>] kmem_cache_init+0x294/0x330
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c011507c>] do_page_fault+0x1cc/0x66a
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c01175e8>] recalc_task_prio+0x88/0x150
 [<c02eeedd>] schedule+0x3bd/0x680
 [<c0124929>] sys_alarm+0x39/0x60
 [<c0114eb0>] do_page_fault+0x0/0x66a
 [<c0108c17>] error_code+0x2b/0x30
Free swap  = 2096316kB
Total swap = 2096376kB
oom-killer: gfp_mask=0x1d2
DMA per-cpu:
cpu 0 hot: low 30, high 90, batch 15
cpu 0 cold: low 0, high 30, batch 15
Normal per-cpu: empty
HighMem per-cpu: empty

Free pages:         548kB (0kB HighMem)
Active:60 inactive:186 dirty:1 writeback:0 unstable:0 free:137 slab:14184
mapped:19 pagetables:3
DMA free:548kB min:1492kB low:1864kB high:2236kB active:240kB inactive:744kB
present:139264kB pages_scanned:381 all_unreclaimable? yes
lowmem_reserve[]: 0 0 0
Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB
pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB
present:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
DMA: 1*4kB 0*8kB 0*16kB 1*32kB 0*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB
0*4096kB = 548kB
Normal: empty
HighMem: empty
Swap cache: add 120470, delete 120465, find 45260/94674, race 0+2
Free swap  = 2096316kB
Total swap = 2096376kB
oom-killer: gfp_mask=0x1d2
DMA per-cpu:
cpu 0 hot: low 30, high 90, batch 15
cpu 0 cold: low 0, high 30, batch 15
Normal per-cpu: empty
HighMem per-cpu: empty

Free pages:         548kB (0kB HighMem)
Active:60 inactive:186 dirty:1 writeback:0 unstable:0 free:137 slab:14184
mapped:19 pagetables:3
DMA free:548kB min:1492kB low:1864kB high:2236kB active:240kB inactive:744kB
present:139264kB pages_scanned:381 all_unreclaimable? yes
printk: 44 messages suppressed.
init: page allocation failure. order:0, mode:0x20
 [<c01417a3>] __alloc_pages+0x2b3/0x430
 [<c916d528>] br_nf_forward_finish+0xb8/0x140 [bridge]
 [<c0144611>] kmem_getpages+0x31/0xa0
 [<c0284dd4>] alloc_skb_from_cache+0x44/0xe0
 [<c014537e>] cache_grow+0x9e/0x190
 [<c01455bd>] cache_alloc_refill+0x14d/0x220
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c0145899>] kmem_cache_alloc+0x69/0x70
 [<c916d132>] br_nf_pre_routing+0x1b2/0x480 [bridge]
 [<c0285014>] kfree_skbmem+0x24/0x30
 [<c0296018>] nf_iterate+0x78/0x90
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c029631e>] nf_hook_slow+0x6e/0x100
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c9168d59>] br_handle_frame+0x1f9/0x270 [bridge]
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c028b894>] netif_receive_skb+0x154/0x2f0
 [<c028bad6>] process_backlog+0xa6/0x160
 [<c028bc15>] net_rx_action+0x85/0x140
 [<c0120315>] __do_softirq+0x95/0xb0
 [<c012037d>] do_softirq+0x4d/0x50
 [<c010d062>] do_IRQ+0x22/0x30
 [<c01048a0>] evtchn_do_upcall+0x70/0xa0
 [<c0108c48>] hypervisor_callback+0x2c/0x34
 [<c010482c>] force_evtchn_callback+0xc/0x10
 [<c011bdde>] release_console_sem+0x5e/0xd0
 [<c011bc07>] vprintk+0x197/0x260
 [<c012c340>] __rcu_process_callbacks+0xa0/0x100
 [<c0141e10>] get_zone_counts+0x50/0x80
 [<c011ba67>] printk+0x17/0x20
 [<c0142039>] show_free_areas+0x1b9/0x3b0
 [<c01407b5>] out_of_memory+0x35/0x90
 [<c0141836>] __alloc_pages+0x346/0x430
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c0143da0>] __do_page_cache_readahead+0x100/0x180
 [<c03eb9fc>] centaur_init_cpu+0xc/0x10
 [<c01442c0>] max_sane_readahead+0x30/0x50
 [<c013dda7>] filemap_nopage+0x2c7/0x3e0
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c03eb958>] init_centaur+0x148/0x1e0
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c014da0f>] do_no_page+0xaf/0x3c0
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c014b269>] pte_alloc_map+0x49/0x1d0
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c014df90>] handle_mm_fault+0xf0/0x1d0
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c03f0b64>] kmem_cache_init+0x294/0x330
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c011507c>] do_page_fault+0x1cc/0x66a
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c01175e8>] recalc_task_prio+0x88/0x150
 [<c02eeedd>] schedule+0x3bd/0x680
 [<c0124929>] sys_alarm+0x39/0x60
 [<c0114eb0>] do_page_fault+0x0/0x66a
 [<c0108c17>] error_code+0x2b/0x30
lowmem_reserve[]: 0 0 0
Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB
pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB
present:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
DMA: 1*4kB 0*8kB 0*16kB 1*32kB 0*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB
0*4096kB = 548kB
Normal: empty
HighMem: empty
Swap cache: add 120470, delete 120465, find 45260/94674, race 0+2
Free swap  = 2096316kB
Total swap = 2096376kB
oom-killer: gfp_mask=0x1d2
DMA per-cpu:
cpu 0 hot: low 30, high 90, batch 15
cpu 0 cold: low 0, high 30, batch 15
Normal per-cpu: empty
HighMem per-cpu: empty

Free pages:         548kB (


and later:

Free pages:         548kB (0kB HighMem)
Active:60 inactive:186 dirty:1 writeback:0 unstable:0 free:137 slab:14184
mapped:19 pagetables:3
DMA free:548kB min:1492kB low:1864kB high:2236kB active:240kB inactive:744kB
present:139264kB pages_scanned:381 all_unreclaimable? yes
lowmem_reserve[]: 0 0 0
Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB
pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB
present:0kB pages_scanned:0 all_unreclaimable? no
printk: 47 messages suppressed.
init: page allocation failure. order:0, mode:0x20
 [<c01417a3>] __alloc_pages+0x2b3/0x430
 [<c916d528>] br_nf_forward_finish+0xb8/0x140 [bridge]
 [<c0144611>] kmem_getpages+0x31/0xa0
 [<c014537e>] cache_grow+0x9e/0x190
 [<c01455bd>] cache_alloc_refill+0x14d/0x220
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c0145899>] kmem_cache_alloc+0x69/0x70
 [<c916d132>] br_nf_pre_routing+0x1b2/0x480 [bridge]
 [<c0296018>] nf_iterate+0x78/0x90
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c029631e>] nf_hook_slow+0x6e/0x100
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c9168d59>] br_handle_frame+0x1f9/0x270 [bridge]
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c028b894>] netif_receive_skb+0x154/0x2f0
 [<c028bad6>] process_backlog+0xa6/0x160
 [<c028bc15>] net_rx_action+0x85/0x140
 [<c0120315>] __do_softirq+0x95/0xb0
 [<c012037d>] do_softirq+0x4d/0x50
 [<c010d062>] do_IRQ+0x22/0x30
 [<c01048a0>] evtchn_do_upcall+0x70/0xa0
 [<c0108c48>] hypervisor_callback+0x2c/0x34
 [<c010482c>] force_evtchn_callback+0xc/0x10
 [<c011bdde>] release_console_sem+0x5e/0xd0
 [<c011bc07>] vprintk+0x197/0x260
 [<c012c340>] __rcu_process_callbacks+0xa0/0x100
 [<c0141e10>] get_zone_counts+0x50/0x80
 [<c011ba67>] printk+0x17/0x20
 [<c0142039>] show_free_areas+0x1b9/0x3b0
 [<c01407b5>] out_of_memory+0x35/0x90
 [<c0141836>] __alloc_pages+0x346/0x430
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c0143da0>] __do_page_cache_readahead+0x100/0x180
 [<c03eb9fc>] centaur_init_cpu+0xc/0x10
 [<c01442c0>] max_sane_readahead+0x30/0x50
 [<c013dda7>] filemap_nopage+0x2c7/0x3e0
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c03eb958>] init_centaur+0x148/0x1e0
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c014da0f>] do_no_page+0xaf/0x3c0
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c014b269>] pte_alloc_map+0x49/0x1d0
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c014df90>] handle_mm_fault+0xf0/0x1d0
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c03f0b64>] kmem_cache_init+0x294/0x330
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c011507c>] do_page_fault+0x1cc/0x66a
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c01175e8>] recalc_task_prio+0x88/0x150
 [<c02eeedd>] schedule+0x3bd/0x680
 [<c0124929>] sys_alarm+0x39/0x60
 [<c0114eb0>] do_page_fault+0x0/0x66a
 [<c0108c17>] error_code+0x2b/0x30
lowmem_reserve[]: 0 0 0
DMA: 1*4kB 0*8kB 0*16kB 1*32kB 0*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB
0*4096kB = 548kB
Normal: empty
HighMem: empty
Swap cache: add 120470, delete 120465, find 45260/94674, race 0+2
Free swap  = 2096316kB
Total swap = 2096376kB
oom-killer: gfp_mask=0x1d2
DMA per-cpu:
cpu 0 hot: low 30, high 90, batch 15
cpu 0 cold: low 0, high 30, batch 15
Normal per-cpu: empty
HighMem per-cpu: empty

Free pages:         548kB (0kB HighMem)
Active:60 inactive:186 dirty:1 writeback:0 unstable:0 free:137 slab:14184
mapped:19 pagetables:3
DMA free:548kB min:1492kB low:1864kB high:2236kB active:240kB inactive:744kB
present:139264kB pages_scanned:381 all_unreclaimable? yes
lowmem_reserve[]: 0 0 0
Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB
pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB
present:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
DMA: 1*4kB 0*8kB 0*16kB 1*32kB 0*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB
0*4096kB = 548kB
Normal: empty
HighMem: empty
Swap cache: add 120470, delete 120465, find 45260/94674, race 0+2
Free swap  = 2096316kB
Total swap = 2096376kB
oom-killer: gfp_mask=0x1d2
DMA per-cpu:
cpu 0 hot: low 30, high 90, batch 15
cpu 0 cold: low 0, high 30, batch 15
Normal per-cpu: empty
HighMem per-cpu: empty

Free pages:         548kB (0kB HighMem)
Active:60 inactive:186 dirty:1 writeback:0 unstable:0 free:137 slab:14184
mapped:19 pagetables:3
DMA free:548kB min:1492kB low:1864kB high:2236kB active:240kB inactive:744kB
present:139264kB pages_scanned:381 all_unreclaimable? yes
lowmem_reserve[]: 0 0 0
Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB
pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB
present:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
DMA: 1*4kB 0*8kB 0*16kB 1*32kB 0*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB
0*4096kB = 548kB
Normal: empty
HighMem: empty
Swap cache: add 120470, delete 120465, find 45260/94674, race 0+2
Free swap  = 2096316kB
Total swap = 2096376kB
oom-killer: gfp_mask=0x1d2
DMA per-cpu:
cpu 0 hot: low 30, high 90, batch 15
cpu 0 cold: low 0, high 30, batch 15
Normal per-cpu: empty
HighMem per-cpu: empty

Free pages:         548kB (0kB HighMem)
printk: 33 messages suppressed.
init: page allocation failure. order:0, mode:0x20
 [<c01417a3>] __alloc_pages+0x2b3/0x430
 [<c916d528>] br_nf_forward_finish+0xb8/0x140 [bridge]
 [<c0144611>] kmem_getpages+0x31/0xa0
 [<c9167d70>] br_forward_finish+0x0/0x70 [bridge]
 [<c014537e>] cache_grow+0x9e/0x190
 [<c01455bd>] cache_alloc_refill+0x14d/0x220
 [<c9167d70>] br_forward_finish+0x0/0x70 [bridge]
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c0145899>] kmem_cache_alloc+0x69/0x70
 [<c916d132>] br_nf_pre_routing+0x1b2/0x480 [bridge]
 [<c9168990>] br_pass_frame_up_finish+0x0/0x20 [bridge]
 [<c029631e>] nf_hook_slow+0x6e/0x100
 [<c0296018>] nf_iterate+0x78/0x90
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c029631e>] nf_hook_slow+0x6e/0x100
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c9168d59>] br_handle_frame+0x1f9/0x270 [bridge]
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c028b894>] netif_receive_skb+0x154/0x2f0
 [<c028bad6>] process_backlog+0xa6/0x160
 [<c028bc15>] net_rx_action+0x85/0x140
 [<c0120315>] __do_softirq+0x95/0xb0
 [<c012037d>] do_softirq+0x4d/0x50
 [<c010d062>] do_IRQ+0x22/0x30
 [<c01048a0>] evtchn_do_upcall+0x70/0xa0
 [<c0108c48>] hypervisor_callback+0x2c/0x34
 [<c010482c>] force_evtchn_callback+0xc/0x10
 [<c011bdde>] release_console_sem+0x5e/0xd0
 [<c011bc07>] vprintk+0x197/0x260
 [<c012c340>] __rcu_process_callbacks+0xa0/0x100
 [<c0141e10>] get_zone_counts+0x50/0x80
 [<c011ba67>] printk+0x17/0x20
 [<c0141f40>] show_free_areas+0xc0/0x3b0
 [<c0108c48>] hypervisor_callback+0x2c/0x34
 [<c01407b5>] out_of_memory+0x35/0x90
 [<c0141836>] __alloc_pages+0x346/0x430
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c0143da0>] __do_page_cache_readahead+0x100/0x180
 [<c03eb9fc>] centaur_init_cpu+0xc/0x10
 [<c01442c0>] max_sane_readahead+0x30/0x50
 [<c013dda7>] filemap_nopage+0x2c7/0x3e0
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c03eb958>] init_centaur+0x148/0x1e0
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c03eb9f8>] centaur_init_cpu+0x8/0x10
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c014da0f>] do_no_page+0xaf/0x3c0
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c014b269>] pte_alloc_map+0x49/0x1d0
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c014df90>] handle_mm_fault+0xf0/0x1d0
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c03f0b64>] kmem_cache_init+0x294/0x330
 [<c03feb7c>] ip_auto_config_setup+0x1bc/0x230
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c011507c>] do_page_fault+0x1cc/0x66a
 [<c03f5334>] kbd_init+0x64/0xa0
 [<c01175e8>] recalc_task_prio+0x88/0x150
 [<c02eeedd>] schedule+0x3bd/0x680
 [<c0124929>] sys_alarm+0x39/0x60
 [<c0114eb0>] do_page_fault+0x0/0x66a
 [<c0108c17>] error_code+0x2b/0x30
Active:60 inactive:186 dirty:1 writeback:0 unstable:0 free:137 slab:14184
mapped:19 pagetables:3
DMA free:548kB min:1492kB low:1864kB high:2236kB active:240kB inactive:744kB
present:139264kB pages_scanned:381 all_unreclaimable? yes
lowmem_reserve[]: 0 0 0
Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB
pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB
present:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
DMA: 1*4kB 0*8kB 0*16kB 1*32kB 0*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB
0*4096kB = 548kB
Normal: empty
HighMem: empty
Swap cache: add 120470, delete 120465, find 45260/94674, race 0+2
Free swap  = 2096316kB
Total swap = 2096376kB
printk: 45 messages suppressed.
init: page allocation failure. order:0, mode:0x20
 [<c01417a3>] __alloc_pages+0x2b3/0x430
 [<c0144611>] kmem_getpages+0x31/0xa0
 [<c014537e>] cache_grow+0x9e/0x190
 [<c01455bd>] cache_alloc_refill+0x14d/0x220
 [<c9168a30>] br_handle_frame_finish+0x0/0x130 [bridge]
 [<c0145899>] kmem_cache_alloc+0x69/0x70
 [<c9ÿü


it was continuously scrolling until I flicked the power.

Any recommened different kernel / options?  More RAM for dom0?
Currently has 128M though.

Thanks,
Andy


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