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    SubjectRe: 2.3.48 oops
    Steffen Kern wrote:
    >
    > Hey lkml-people!
    >
    > I got an oops with kernel 2.3.48, the system was under high cpu load (0.6% idle, mpeg2-enconding)..
    >

    I have had also an Oops, but it was X (again, and BTW XFree-3.3.5,
    Voodoo3 2000 pci) almost no load.

    The relevant info next:

    Ksymoops 0.7c

    Unable to handle kernel NULL pointer dereference at virtual address
    00000011
    c014d7ac
    *pde = 00000000
    Oops: 0002
    CPU: 0
    EIP: 0010:[<c014d7ac>]
    Using defaults from ksymoops -t elf32-i386 -a i386
    EFLAGS: 00013287
    eax: 00000001 ebx: c5902010 ecx: c5902000 edx: 00000001
    esi: c40c5668 edi: c590200c ebp: c5902000 esp: c40f1ef8
    ds: 0018 es: 0018 ss: 0018
    Process X (pid: 785, stackpage=c40f1000)
    Stack: c0cb0c60 00000000 c0cb0c60 00000304 00003287 c014de66 c5902000
    c510d7f0
    00000080 c510d800 0000009f c428cc2c c5f8e120 c510d7d0 c012b15a
    c5f8e0e0
    00000000 c40f0000 04000000 c40f0000 00000001 0000001b 00000001
    c5902000
    Call Trace: [<c014de66>] [<c012b15a>] [<c014e27a>] [<c010a534>]
    Code: f0 ff 4a 10 0f 94 c0 84 c0 74 09 52 e8 33 f0 fe ff 83 c4 04

    >>EIP; c014d7ac <free_wait+120/18c> <=====
    Trace; c014de66 <do_select+3c2/3dc>
    Trace; c012b15a <do_munmap+362/370>
    Trace; c014e27a <sys_select+3fa/55c>
    Trace; c010a534 <system_call+34/38>
    Code; c014d7ac <free_wait+120/18c>
    00000000 <_EIP>:
    Code; c014d7ac <free_wait+120/18c> <=====
    0: f0 ff 4a 10 lock decl 0x10(%edx) <=====
    Code; c014d7b0 <free_wait+124/18c>
    4: 0f 94 c0 sete %al
    Code; c014d7b3 <free_wait+127/18c>
    7: 84 c0 testb %al,%al
    Code; c014d7b5 <free_wait+129/18c>
    9: 74 09 je 14 <_EIP+0x14> c014d7c0
    <free_wait+134/18c>
    Code; c014d7b7 <free_wait+12b/18c>
    b: 52 pushl %edx
    Code; c014d7b8 <free_wait+12c/18c>
    c: e8 33 f0 fe ff call fffef044 <_EIP+0xfffef044>
    c013c7f0 <_fput+0/1a4>
    Code; c014d7bd <free_wait+131/18c>
    11: 83 c4 04 addl $0x4,%esp


    and from /var/log/messages

    kernel: Unable to handle kernel NULL pointer dereference at virtual
    address 00000011
    kernel: printing eip:
    kernel: c014d7ac
    kernel: *pde = 00000000
    kernel: Oops: 0002
    kernel: CPU: 0
    kernel: EIP: 0010:[free_wait+288/396]
    kernel: EFLAGS: 00013287
    kernel: eax: 00000001 ebx: c5902010 ecx: c5902000 edx: 00000001
    kernel: esi: c40c5668 edi: c590200c ebp: c5902000 esp: c40f1ef8
    kernel: ds: 0018 es: 0018 ss: 0018
    kernel: Process X (pid: 785, stackpage=c40f1000)
    kernel: Stack: c0cb0c60 00000000 c0cb0c60 00000304 00003287 c014de66
    c5902000 c510d7f0
    kernel: 00000080 c510d800 0000009f c428cc2c c5f8e120 c510d7d0
    c012b15a c5f8e0e0
    kernel: 00000000 c40f0000 04000000 c40f0000 00000001 0000001b
    00000001 c5902000
    kernel: Call Trace: [do_select+962/988] [do_munmap+866/880]
    [sys_select+1018/1372] [system_call+52/56]
    kernel: Code: f0 ff 4a 10 0f 94 c0 84 c0 74 09 52 e8 33 f0 fe ff 83 c4
    04


    --
    Jorge Nerin
    <jnerin@svalero.es>
    <comandante@zaralinux.com>

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