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    Subject2.6.16-rt10 crash on ppc
    Dear all,
    Today I have tried Ingo Molnar's patch-2.6.16-rt10 on a ppc (PQ3 MPC8540ADS)
    For testing purpose I have enabled packet routing and send ethernet
    packets over the system with a network test equipment. under light
    load on ethernet, the system is working fine, but under heavy load,
    firstly console freezes, then the message below prints on the console
    again and again. The system without patch is working fine on light or
    heavy loads. What can be the problem, is there a bug or am i doing
    something wrong?
    Thanks alot..
    here is the console output
    --------------------------console output-----
    softirq-net-rx/: page allocation failure. order:0, mode:0x20
    Call Trace:
    [C04E3DB0] [C000A60C] show_stack+0x50/0x188 (unreliable)
    [C04E3DE0] [C004C3EC] __alloc_pages+0x1c8/0x2a4
    [C04E3E30] [C0063C90] cache_alloc_refill+0x35c/0x57c
    [C04E3E80] [C0063FA4] __kmalloc+0xf4/0xfc
    [C04E3EB0] [C012D460] __alloc_skb+0x58/0x118
    [C04E3ED0] [C011AF20] gfar_new_skb+0x40/0xd4
    [C04E3EF0] [C011D320] gfar_clean_rx_ring+0x25c/0x634
    [C04E3F30] [C011D72C] gfar_poll+0x34/0x140
    [C04E3F50] [C013364C] net_rx_action+0x94/0x188
    [C04E3F80] [C0026730] ksoftirqd+0x104/0x1b4
    [C04E3FC0] [C003779C] kthread+0xf8/0x100
    [C04E3FF0] [C0004DB8] kernel_thread+0x44/0x60
    Mem-info:
    DMA per-cpu:
    cpu 0 hot: high 90, batch 15 used:0
    cpu 0 cold: high 30, batch 7 used:0
    DMA32 per-cpu: empty
    Normal per-cpu: empty
    HighMem per-cpu: empty
    Free pages: 768kB (0kB HighMem)
    Active:1650 inactive:2036 dirty:0 writeback:0 unstable:0 free:192
    slab:60106 mapped:764 pagetables:29
    DMA free:768kB min:2048kB low:2560kB high:3072kB active:6600kB
    inactive:8144kB present:262144kB pages_scanned:0 all_unreclaimab
    le? no
    lowmem_reserve[]: 0 0 0 0
    DMA32 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 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 0
    HighMem free:0kB min:128kB low:128kB high:128kB active:0kB
    inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
    lowmem_reserve[]: 0 0 0 0
    DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 1*256kB 1*512kB 0*1024kB
    0*2048kB 0*4096kB = 768kB
    DMA32: empty
    Normal: empty
    HighMem: empty
    Swap cache: add 0, delete 0, find 0/0, race 0+0
    Free swap = 0kB
    Total swap = 0kB
    Free swap: 0kB
    65536 pages of RAM
    0 pages of HIGHMEM
    662 free pages
    1180 reserved pages
    1249 pages shared
    0 pages swap cached
    printk: 2159030 messages suppressed.
    -------and continues..
    -
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