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    SubjectRe: Via KT133 pci corruption: stock 2.4.18pre2 oopses as well
    On Wed, Jan 09, 2002 at 01:00:53PM -0800, you [Andrew Morton] claimed:
    > Ville Herva wrote:
    > >
    > > >>EIP; c0131ce0 <sync_page_buffers+10/b0> <=====
    > Looks like a corrupted `next' pointer in the page's buffer_head
    > ring. Your report is identical to Todd Eigenschink's repeatable
    > oops.
    > I am able to trigger this in around ten minutes on 2.4.13 and
    > later kernels. However 2.4.13-pre6 ran the test for nine hours
    > and did not fail.

    Out of curiosity: what kind of load do you use to trigger it?

    > I've put the 2.4.13-pre6 -> 2.4.13 diff at

    Seems your diff didn't include some bits (Maintainers changes and something

    Anyhow, I compiled 2.4.13pre6 and it collapsed in just a few minutes. My
    best guess is that network card pci dma is somehow fubar, and it writes
    stuff to where it shouldn't.

    Unable to handle kernel paging request at virtual address 86061d0e
    *pde = 00000000
    Oops: 0002
    CPU: 0
    EIP: 0010:[<c012f354>] Not tainted
    Using defaults from ksymoops -t elf32-i386 -a i386
    EFLAGS: 00010202
    eax: 86061cee ebx: cb4aba40 ecx: 68158c40 edx: 0000aa25
    esi: cb4aba40 edi: 00000001 ebp: 00000001 esp: ceb45b48
    ds: 0018 es: 0018 ss: 0018
    Process ping (pid: 4134, stackpage=ceb45000)
    Stack: 00000001 cb4aba40 c012fc93 cb4aba40 ceb45ba8 00000000 c012fcca cb4aba40
    c017cdc3 cb4aba40 cb4ab7c0 000003f0 cb4ab7c0 c1324000 00000008 c1405e50
    0000dc2f cb4aba40 c0131766 00000001 00000001 ceb45ba8 00000000 cb4aba40
    Call Trace: [<c012fc93>] [<c012fcca>] [<c017cdc3>] [<c0131766>] [<c01318a3>]
    [<c0127a69>] [<c0127d4f>] [<c0127d9d>] [<c01286e5>] [<c012893f>] [<c0128688>]
    [<c01289ba>] [<c0126922>] [<c0126bef>] [<c01e4c2b>] [<c01e4311>] [<c01f59c3>]
    [<c01f5d3e>] [<c020c250>] [<c020c5cf>] [<c020c250>] [<c0212f70>] [<c0212fa9>]
    [<c01e1f01>] [<c0212f70>] [<c01e3177>] [<c0193800>] [<c0193a3e>] [<c0193a20>]
    [<c018f2e0>] [<c018f32a>] [<c018f696>] [<c0193a3e>] [<c018faba>] [<c0193a50>]
    [<c01e360c>] [<c0106ebb>]
    Code: 89 48 20 c1 e2 02 be 24 0b 2c c0 89 41 24 39 1c 32 75 0a 31

    >>EIP; c012f354 <__remove_from_lru_list+14/60> <=====
    Trace; c012fc93 <__refile_buffer+33/60>
    Trace; c012fcca <refile_buffer+a/10>
    Trace; c017cdc3 <ll_rw_block+1a3/1c0>
    Trace; c0131766 <sync_page_buffers+46/a0>
    Trace; c01318a3 <try_to_free_buffers+e3/110>
    Trace; c0127a69 <shrink_cache+129/2b0>
    Trace; c0127d4f <shrink_caches+5f/90>
    Trace; c0127d9d <try_to_free_pages+1d/50>
    Trace; c01286e5 <balance_classzone+55/170>
    Trace; c012893f <__alloc_pages+13f/1b0>
    Trace; c0128688 <_alloc_pages+18/20>
    Trace; c01289ba <__get_free_pages+a/20>
    Trace; c0126922 <kmem_cache_grow+a2/200>
    Trace; c0126bef <kmalloc+bf/e0>
    Trace; c01e4c2b <alloc_skb+cb/180>
    Trace; c01e4311 <sock_alloc_send_skb+71/110>
    Trace; c01f59c3 <ip_build_xmit_slow+193/4c0>
    Trace; c01f5d3e <ip_build_xmit+4e/350>
    Trace; c020c250 <raw_getfrag+0/30>
    Trace; c020c5cf <raw_sendmsg+28f/300>
    Trace; c020c250 <raw_getfrag+0/30>
    Trace; c0212f70 <inet_sendmsg+0/40>
    Trace; c0212fa9 <inet_sendmsg+39/40>
    Trace; c01e1f01 <sock_sendmsg+81/b0>
    Trace; c0212f70 <inet_sendmsg+0/40>
    Trace; c01e3177 <sys_sendmsg+197/1f0>
    Trace; c0193800 <hpt370_rw_proc+0/10>
    Trace; c0193a3e <hpt370_dmaproc+1e/30>
    Trace; c0193a20 <hpt370_dmaproc+0/30>
    Trace; c018f2e0 <start_request+190/240>
    Trace; c018f32a <start_request+1da/240>
    Trace; c018f696 <ide_do_request+296/2e0>
    Trace; c0193a3e <hpt370_dmaproc+1e/30>
    Trace; c018faba <ide_intr+7a/140>
    Trace; c0193a50 <ide_dma_intr+0/c0>
    Trace; c01e360c <sys_socketcall+1cc/1f0>
    Trace; c0106ebb <system_call+33/38>
    Code; c012f354 <__remove_from_lru_list+14/60>
    00000000 <_EIP>:
    Code; c012f354 <__remove_from_lru_list+14/60> <=====
    0: 89 48 20 mov %ecx,0x20(%eax) <=====
    Code; c012f357 <__remove_from_lru_list+17/60>
    3: c1 e2 02 shl $0x2,%edx
    Code; c012f35a <__remove_from_lru_list+1a/60>
    6: be 24 0b 2c c0 mov $0xc02c0b24,%esi
    Code; c012f35f <__remove_from_lru_list+1f/60>
    b: 89 41 24 mov %eax,0x24(%ecx)
    Code; c012f362 <__remove_from_lru_list+22/60>
    e: 39 1c 32 cmp %ebx,(%edx,%esi,1)
    Code; c012f365 <__remove_from_lru_list+25/60>
    11: 75 0a jne 1d <_EIP+0x1d> c012f371 <__remove_from_lru_list+31/60>
    Code; c012f367 <__remove_from_lru_list+27/60>
    13: 31 00 xor %eax,(%eax)

    <1>Unable to handle kernel paging request at virtual address b8f2ed62
    *pde = 00000000
    Oops: 0002
    CPU: 0
    EIP: 0010:[<c012f4f1>] Not tainted
    EFLAGS: 00010282
    eax: b8f2ed5e ebx: cb4ab9c0 ecx: 000002f0 edx: ff2eca38
    esi: cb4abd40 edi: cb4ab9c0 ebp: c127e940 esp: ceb43d34
    ds: 0018 es: 0018 ss: 0018
    Process cat (pid: 4133, stackpage=ceb43000)
    Stack: c0131812 cb4ab9c0 00000000 c127e940 000002f0 00002298 c0127a69 c127e940
    000002f0 00000020 000002f0 00000006 00002299 00000020 000002f0 c0127d4f
    00000000 00000006 00000020 00000000 000002f0 00019f2e c0127d9d 00000000
    Call Trace: [<c0131812>] [<c0127a69>] [<c0127d4f>] [<c0127d9d>] [<c01286e5>]
    [<c012893f>] [<c0128688>] [<c01289ba>] [<c0126922>] [<c0126b19>] [<c012fdc3>]
    [<c012fe4b>] [<c0130097>] [<c01305c8>] [<c01288d8>] [<c0121b76>] [<c0132fef>]
    [<c0132f80>] [<c0121c15>] [<c01220c4>] [<c0122327>] [<c01226b5>] [<c01225e0>]
    [<c012dffe>] [<c0106ebb>]
    Code: 89 50 04 89 02 c3 89 f6 8d bc 27 00 00 00 00 8b 54 24 04 31

    >>EIP; c012f4f1 <__remove_inode_queue+11/20> <=====
    Trace; c0131812 <try_to_free_buffers+52/110>
    Trace; c0127a69 <shrink_cache+129/2b0>
    Trace; c0127d4f <shrink_caches+5f/90>
    Trace; c0127d9d <try_to_free_pages+1d/50>
    Trace; c01286e5 <balance_classzone+55/170>
    Trace; c012893f <__alloc_pages+13f/1b0>
    Trace; c0128688 <_alloc_pages+18/20>
    Trace; c01289ba <__get_free_pages+a/20>
    Trace; c0126922 <kmem_cache_grow+a2/200>
    Trace; c0126b19 <kmem_cache_alloc+99/b0>
    Trace; c012fdc3 <get_unused_buffer_head+33/80>
    Trace; c012fe4b <create_buffers+1b/130>
    Trace; c0130097 <create_empty_buffers+17/50>
    Trace; c01305c8 <block_read_full_page+58/290>
    Trace; c01288d8 <__alloc_pages+d8/1b0>
    Trace; c0121b76 <add_to_page_cache_unique+66/70>
    Trace; c0132fef <blkdev_readpage+f/20>
    Trace; c0132f80 <blkdev_get_block+0/40>
    Trace; c0121c15 <page_cache_read+95/c0>
    Trace; c01220c4 <generic_file_readahead+104/150>
    Trace; c0122327 <do_generic_file_read+1e7/4a0>
    Trace; c01226b5 <generic_file_read+75/90>
    Trace; c01225e0 <file_read_actor+0/60>
    Trace; c012dffe <sys_read+8e/d0>
    Trace; c0106ebb <system_call+33/38>
    Code; c012f4f1 <__remove_inode_queue+11/20>
    00000000 <_EIP>:
    Code; c012f4f1 <__remove_inode_queue+11/20> <=====
    0: 89 50 04 mov %edx,0x4(%eax) <=====
    Code; c012f4f4 <__remove_inode_queue+14/20>
    3: 89 02 mov %eax,(%edx)
    Code; c012f4f6 <__remove_inode_queue+16/20>
    5: c3 ret
    Code; c012f4f7 <__remove_inode_queue+17/20>
    6: 89 f6 mov %esi,%esi
    Code; c012f4f9 <__remove_inode_queue+19/20>
    8: 8d bc 27 00 00 00 00 lea 0x0(%edi,1),%edi
    Code; c012f500 <inode_has_buffers+0/20>
    f: 8b 54 24 04 mov 0x4(%esp,1),%edx
    Code; c012f504 <inode_has_buffers+4/20>
    13: 31 00 xor %eax,(%eax)

    -- v --
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