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    Subjectoops in kswapd

    I have had this a couple of times using 2.1.48-pre3. Didn't happen under
    2.1.48-pre2. The only other patch applied (was also applied to
    2.1.48-pre2) is the extra killoNe patch for sysrq.c.

    It has always been in iput in kswapd.

    Script started on Tue Aug 5 20:50:07 1997
    dass scripts$ dmesg | ksymoops /boot/2.1.48.map
    Using `/boot/2.1.48.map' to map addresses to symbols.

    >>EIP: c0130c48 <iput+18/b0>
    Trace: c0130e94 <shrink_dcache+54/80>
    Trace: c01218ed <try_to_free_page+6d/d0>
    Trace: c0121ad3 <kswapd+113/130>
    Trace: c0108332 <init+42/1b0>
    Trace: c0121ad3 <kswapd+113/130>
    Trace: c0107fdc <this_must_match_init_task+1fdc/2000>

    Code: c0130c48 <iput+18/b0> movl 0x10(%eax),%eax
    Code: c0130c4b <iput+1b/b0> testl %eax,%eax
    Code: c0130c4d <iput+1d/b0> je c0130c51 <iput+21/b0>
    Code: c0130c4f <iput+1f/b0> movl %eax,%esi
    Code: c0130c51 <iput+21/b0> testl %esi,%esi
    Code: c0130c53 <iput+23/b0> je c0130c62 <iput+32/b0>
    Code: c0130c55 <iput+25/b0> movl 0x8(%esi),%eax
    Code: c0130c58 <iput+28/b0> testl %eax,%eax
    Code: c0130c5a <iput+2a/b0> je c0130c62 <iput+32/b0>
    Code: c0130c5c <iput+2c/b0> dass scripts$
    dass scripts$ dmesg
    [...some deleted...]
    Unable to handle kernel paging request at virtual address 1cdc3cd0
    current->tss.cr3 = 00101000, %cr3 = 00101000
    *pde = 00000000
    Oops: 0000
    CPU: 0
    EIP: 0010:[<c0130c48>]
    EFLAGS: 00010206
    eax: 1cdc3cc0 ebx: c0cc46e3 ecx: c0cc46e3 edx: c0cc4754
    esi: 00000000 edi: 00000003 ebp: 00000000 esp: c0093fa8
    ds: 0018 es: 0018 ss: 0018
    Process kswapd (pid: 3, process nr: 3, stackpage=c0093000)
    Stack: c0c14ad8 c0c14ab0 00000003 c0130e94 c0cc46e3 00000006 00000000 c01218ed
    00000000 c0092000 00000000 00009000 c0121ad3 00000003 00000000 00000000
    00000100 c0005fe4 c0108332 00000000 c01219c0 c0107fdc
    Call Trace: [<c0130e94>] [<c01218ed>] [<c0121ad3>] [<c0108332>] [<c01219c0>] [<c0107fdc>]
    Code: 8b 40 10 85 c0 74 02 89 c6 85 f6 74 0d 8b 46 08 85 c0 74 06
    dass scripts$ exit

    Script done on Tue Aug 5 20:50:31 1997


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    1022kb of spam & junk filtered; Linux 2.1.48 on dass up for 3 hours


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