Code:
2009/06/22 16:25:42	kernel:Pid: 0, comm: swapper Not tainted 2.6.25.13-oe32 #61

2009/06/22 16:25:42	kernel:[<c0156fef>] __alloc_pages+0x2df/0x330

2009/06/22 16:25:42	kernel:[<c016f805>] kmem_getpages+0x45/0x110

2009/06/22 16:25:42	kernel:[<c0170394>] cache_grow+0x104/0x140

2009/06/22 16:25:42	kernel:[<c0170587>] cache_alloc_refill+0x1b7/0x1f0

2009/06/22 16:25:42	kernel:[<c0170921>] __kmalloc+0xb1/0xc0

2009/06/22 16:25:42	kernel:[<c0476873>] __alloc_skb+0x43/0x100

2009/06/22 16:25:42	kernel:[<c0476944>] __netdev_alloc_skb+0x14/0x40

2009/06/22 16:25:42	kernel:[<e4ac4239>] e1000_alloc_rx_buffers+0x149/0x320 [e1000]

2009/06/22 16:25:42	kernel:[<e4ac3ba3>] e1000_clean_rx_irq+0x353/0x480 [e1000]

2009/06/22 16:25:42	kernel:[<e4ac31e6>] e1000_intr+0xc6/0x250 [e1000]

2009/06/22 16:25:42	kernel:[<c014f6a5>] handle_IRQ_event+0x25/0x50

2009/06/22 16:25:42	kernel:[<c0150700>] handle_fasteoi_irq+0x60/0xc0

2009/06/22 16:25:42	kernel:[<c0105b78>] do_IRQ+0x38/0x70

2009/06/22 16:25:42	kernel:[<c01049c3>] common_interrupt+0x23/0x30

2009/06/22 16:25:42	kernel:[<c01021b1>] mwait_idle_with_hints+0x31/0x40

2009/06/22 16:25:42	kernel:[<c01021c0>] mwait_idle+0x0/0x10

2009/06/22 16:25:42	kernel:[<c01020fb>] cpu_idle+0x4b/0xa0

2009/06/22 16:25:42	kernel:=======================

2009/06/22 16:25:42	kernel:DMA per-cpu:

2009/06/22 16:25:42	kernel:CPU    0: hi:    0, btch:   1 usd:   0

2009/06/22 16:25:42	kernel:CPU    1: hi:    0, btch:   1 usd:   0

2009/06/22 16:25:42	kernel:CPU    2: hi:    0, btch:   1 usd:   0

2009/06/22 16:25:42	kernel:CPU    3: hi:    0, btch:   1 usd:   0

2009/06/22 16:25:42	kernel:CPU    4: hi:    0, btch:   1 usd:   0

2009/06/22 16:25:42	kernel:CPU    5: hi:    0, btch:   1 usd:   0

2009/06/22 16:25:42	kernel:CPU    6: hi:    0, btch:   1 usd:   0

2009/06/22 16:25:42	kernel:CPU    7: hi:    0, btch:   1 usd:   0

2009/06/22 16:25:42	kernel:Normal per-cpu:

2009/06/22 16:25:42	kernel:CPU    0: hi:  186, btch:  31 usd:  57

2009/06/22 16:25:42	kernel:CPU    1: hi:  186, btch:  31 usd: 109

2009/06/22 16:25:42	kernel:CPU    2: hi:  186, btch:  31 usd: 172

2009/06/22 16:25:42	kernel:CPU    3: hi:  186, btch:  31 usd:  86

2009/06/22 16:25:42	kernel:CPU    4: hi:  186, btch:  31 usd: 167

2009/06/22 16:25:42	kernel:CPU    5: hi:  186, btch:  31 usd: 181

2009/06/22 16:25:42	kernel:CPU    6: hi:  186, btch:  31 usd:  64

2009/06/22 16:25:42	kernel:CPU    7: hi:  186, btch:  31 usd: 126

2009/06/22 16:25:42	kernel:HighMem per-cpu:

2009/06/22 16:25:42	kernel:CPU    0: hi:  186, btch:  31 usd:  13

2009/06/22 16:25:42	kernel:CPU    1: hi:  186, btch:  31 usd:  32

2009/06/22 16:25:42	kernel:CPU    2: hi:  186, btch:  31 usd: 127

2009/06/22 16:25:42	kernel:CPU    3: hi:  186, btch:  31 usd:  93

2009/06/22 16:25:42	kernel:CPU    4: hi:  186, btch:  31 usd: 157

2009/06/22 16:25:42	kernel:CPU    5: hi:  186, btch:  31 usd:  87

2009/06/22 16:25:42	kernel:CPU    6: hi:  186, btch:  31 usd: 148

2009/06/22 16:25:42	kernel:CPU    7: hi:  186, btch:  31 usd:  31

2009/06/22 16:25:42	kernel:Active:28739 inactive:121038 dirty:927 writeback:0 unstable:0

2009/06/22 16:25:42	kernel:free:8096891 slab:27275 mapped:6273 pagetables:450 bounce:0

2009/06/22 16:25:42	kernel:DMA free:2224kB min:84kB low:104kB high:124kB active:0kB inactive:0kB present:16256kB pages_scanned:0 all_unreclaimable? yes

2009/06/22 16:25:42	kernel:lowmem_reserve[]: 0 555 34020 34020

2009/06/22 16:25:42	kernel:Normal free:1096kB min:2968kB low:3708kB high:4452kB active:27108kB inactive:23552kB present:568960kB pages_scanned:0 all_unreclaimable? no

2009/06/22 16:25:42	kernel:lowmem_reserve[]: 0 0 267716 267716

2009/06/22 16:25:42	kernel:HighMem free:32384244kB min:512kB low:45248kB high:89984kB active:87848kB inactive:460600kB present:34267648kB pages_scanned:0 all_unreclaimable? no

2009/06/22 16:25:42	kernel:lowmem_reserve[]: 0 0 0 0

2009/06/22 16:25:42	kernel:DMA: 0*4kB 0*8kB 1*16kB 1*32kB 0*64kB 1*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 2224kB

2009/06/22 16:25:42	kernel:Normal: 1*4kB 1*8kB 0*16kB 1*32kB 0*64kB 1*128kB 1*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 940kB

2009/06/22 16:25:42	kernel:HighMem: 44*4kB 32*8kB 15*16kB 3*32kB 32*64kB 556*128kB 344*256kB 196*512kB 103*1024kB 41*2048kB 7796*4096kB = 32384256kB

2009/06/22 16:25:42	kernel:133969 total pagecache pages

2009/06/22 16:25:42	kernel:Swap cache: add 0, delete 0, find 0/0

2009/06/22 16:25:42	kernel:Free swap  = 4194296kB

2009/06/22 16:25:42	kernel:Total swap = 4194296kB

2009/06/22 16:26:04	kernel:Pid: 29454, comm: apache2 Not tainted 2.6.25.13-oe32 #61

2009/06/22 16:26:04	kernel:[<c0156fef>] __alloc_pages+0x2df/0x330

2009/06/22 16:26:04	kernel:[<c0138410>] notify_die+0x30/0x40

2009/06/22 16:26:04	kernel:[<c016f805>] kmem_getpages+0x45/0x110

2009/06/22 16:26:04	kernel:[<c0170394>] cache_grow+0x104/0x140

2009/06/22 16:26:04	kernel:[<c0170587>] cache_alloc_refill+0x1b7/0x1f0

2009/06/22 16:26:04	kernel:[<c0170921>] __kmalloc+0xb1/0xc0

2009/06/22 16:26:04	kernel:[<c0476873>] __alloc_skb+0x43/0x100

2009/06/22 16:26:04	kernel:[<c0476944>] __netdev_alloc_skb+0x14/0x40

2009/06/22 16:26:04	kernel:[<e4ac4239>] e1000_alloc_rx_buffers+0x149/0x320 [e1000]

2009/06/22 16:26:04	kernel:[<e4ac3ba3>] e1000_clean_rx_irq+0x353/0x480 [e1000]

2009/06/22 16:26:04	kernel:[<e4ac31e6>] e1000_intr+0xc6/0x250 [e1000]

2009/06/22 16:26:04	kernel:[<c014f6a5>] handle_IRQ_event+0x25/0x50

2009/06/22 16:26:04	kernel:[<c0150700>] handle_fasteoi_irq+0x60/0xc0

2009/06/22 16:26:04	kernel:[<c0105b78>] do_IRQ+0x38/0x70

2009/06/22 16:26:04	kernel:[<c01049c3>] common_interrupt+0x23/0x30

2009/06/22 16:26:04	kernel:=======================

2009/06/22 16:26:04	kernel:DMA per-cpu:

2009/06/22 16:26:04	kernel:CPU    0: hi:    0, btch:   1 usd:   0

2009/06/22 16:26:04	kernel:CPU    1: hi:    0, btch:   1 usd:   0

2009/06/22 16:26:04	kernel:CPU    2: hi:    0, btch:   1 usd:   0

2009/06/22 16:26:04	kernel:CPU    3: hi:    0, btch:   1 usd:   0

2009/06/22 16:26:04	kernel:CPU    4: hi:    0, btch:   1 usd:   0

2009/06/22 16:26:04	kernel:CPU    5: hi:    0, btch:   1 usd:   0

2009/06/22 16:26:04	kernel:CPU    6: hi:    0, btch:   1 usd:   0

2009/06/22 16:26:04	kernel:CPU    7: hi:    0, btch:   1 usd:   0

2009/06/22 16:26:04	kernel:Normal per-cpu:

2009/06/22 16:26:04	kernel:CPU    0: hi:  186, btch:  31 usd:  30

2009/06/22 16:26:04	kernel:CPU    1: hi:  186, btch:  31 usd: 164

2009/06/22 16:26:04	kernel:CPU    2: hi:  186, btch:  31 usd:  81

2009/06/22 16:26:04	kernel:CPU    3: hi:  186, btch:  31 usd:  17

2009/06/22 16:26:04	kernel:CPU    4: hi:  186, btch:  31 usd:  94

2009/06/22 16:26:04	kernel:CPU    5: hi:  186, btch:  31 usd: 165

2009/06/22 16:26:04	kernel:CPU    6: hi:  186, btch:  31 usd: 121

2009/06/22 16:26:04	kernel:CPU    7: hi:  186, btch:  31 usd: 164

2009/06/22 16:26:04	kernel:HighMem per-cpu:

2009/06/22 16:26:04	kernel:CPU    0: hi:  186, btch:  31 usd:  57

2009/06/22 16:26:04	kernel:CPU    1: hi:  186, btch:  31 usd: 165

2009/06/22 16:26:04	kernel:CPU    2: hi:  186, btch:  31 usd: 161

2009/06/22 16:26:04	kernel:CPU    3: hi:  186, btch:  31 usd:  47

2009/06/22 16:26:04	kernel:CPU    4: hi:  186, btch:  31 usd: 154

2009/06/22 16:26:04	kernel:CPU    5: hi:  186, btch:  31 usd: 182

2009/06/22 16:26:04	kernel:CPU    6: hi:  186, btch:  31 usd: 147

2009/06/22 16:26:04	kernel:CPU    7: hi:  186, btch:  31 usd:  53

2009/06/22 16:26:04	kernel:Active:28940 inactive:116726 dirty:843 writeback:0 unstable:0

2009/06/22 16:26:04	kernel:free:8099870 slab:28331 mapped:6451 pagetables:492 bounce:0

2009/06/22 16:26:04	kernel:DMA free:2256kB min:84kB low:104kB high:124kB active:0kB inactive:0kB present:16256kB pages_scanned:0 all_unreclaimable? no

2009/06/22 16:26:04	kernel:lowmem_reserve[]: 0 555 34020 34020

2009/06/22 16:26:04	kernel:Normal free:1096kB min:2968kB low:3708kB high:4452kB active:25236kB inactive:21768kB present:568960kB pages_scanned:0 all_unreclaimable? no

2009/06/22 16:26:04	kernel:lowmem_reserve[]: 0 0 267716 267716

2009/06/22 16:26:04	kernel:HighMem free:32396128kB min:512kB low:45248kB high:89984kB active:90524kB inactive:445136kB present:34267648kB pages_scanned:0 all_unreclaimable? no

2009/06/22 16:26:04	kernel:lowmem_reserve[]: 0 0 0 0

2009/06/22 16:26:04	kernel:DMA: 0*4kB 3*8kB 2*16kB 1*32kB 0*64kB 1*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 2264kB

2009/06/22 16:26:04	kernel:Normal: 0*4kB 1*8kB 0*16kB 0*32kB 3*64kB 1*128kB 0*256kB 0*512kB 1*1024kB 0*2048kB 0*4096kB = 1352kB

2009/06/22 16:26:04	kernel:HighMem: 133*4kB 54*8kB 11*16kB 8*32kB 510*64kB 333*128kB 366*256kB 198*512kB 106*1024kB 43*2048kB 7795*4096kB = 32396660kB

2009/06/22 16:26:04	kernel:129550 total pagecache pages

2009/06/22 16:26:04	kernel:Swap cache: add 0, delete 0, find 0/0

2009/06/22 16:26:04	kernel:Free swap  = 4194296kB

2009/06/22 16:26:04	kernel:Total swap = 4194296kB
The errors happens on 32bit and on 64bit. Then i logged on the console on increased the nfs processes and vmalloc to max. The errors happens again. If i throttle rsync with --bwlimit 10576 down, then it runs smoothly.

Any ideas?

PS: Splitted posting, because the forum software limit posting to 10.000 chars