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    SubjectRe: 2.6.20-mm2: Oops in generic_make_request
    On Sun, Feb 18, 2007 at 02:06:59PM +0100, Laurent Riffard wrote:
    > Le 18.02.2007 06:51, Andrew Morton a écrit :
    > >Temporarily at
    > >
    > > http://userweb.kernel.org/~akpm/2.6.20-mm2/
    > >
    > >Will appear later at
    > >
    > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.20/2.6.20-mm2/
    >
    > Hello, I've got a fully reproducible Oops. I just have to boot to
    > runlevel 2 and wait less than one minute.

    Maybe this oops is related too?
    Can't yet tell if it's easily reproducible, this is on a JFS filesystem.

    BUG: unable to handle kernel NULL pointer dereference at virtual address 00000004
    printing eip:
    c02206aa
    *pde = 00000000
    Oops: 0000 [#1]
    PREEMPT
    last sysfs file: /devices/pci0000:00/0000:00:00.0/class
    CPU: 0
    EIP: 0060:[<c02206aa>] Not tainted VLI
    EFLAGS: 00010297 (2.6.20-mm2-1 #1)
    EIP is at __make_request+0x13a/0x390
    eax: ffffffff ebx: 00000000 ecx: 042b0dd8 edx: 00010485
    esi: c5f8cea0 edi: cfd587f8 ebp: c653dadc esp: c653dabc
    ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0068
    Process sh (pid: 4549, ti=c653c000 task=ccca2090 task.ti=c653c000)
    Stack: c137eae8 00000001 cfd587e4 c5f8cea0 c5f893e4 c137eae8 c5f8cea0 00000008
    c653db28 c021e0ca cfa3ffa0 cee6a2e0 cfa3ffa0 00000000 00000008 00000100
    00011250 cfedaf60 c653db10 00000206 00000000 c653db18 c014a31e c653db48
    Call Trace:
    [<c01048ba>] show_trace_log_lvl+0x1a/0x30
    [<c0104979>] show_stack_log_lvl+0xa9/0xd0
    [<c0104ba6>] show_registers+0x206/0x350
    [<c0104dfe>] die+0x10e/0x210
    [<c0114652>] do_page_fault+0x2d2/0x600
    [<c0351f84>] error_code+0x74/0x7c
    [<c021e0ca>] generic_make_request+0x15a/0x200
    [<c0220318>] submit_bio+0x58/0xe0
    [<c0205d0f>] metapage_writepage+0x18f/0x1b0
    [<c014cc2b>] __writepage+0xb/0x30
    [<c014d20f>] write_cache_pages+0x22f/0x300
    [<c014d303>] generic_writepages+0x23/0x30
    [<c014d36c>] do_writepages+0x5c/0x60
    [<c0148307>] __filemap_fdatawrite_range+0x67/0x80
    [<c0149785>] filemap_flush+0x25/0x30
    [<c02080cd>] lmLogSync+0x19d/0x230
    [<c020871e>] lmLog+0x5e/0x190
    [<c020a360>] txCommit+0x8c0/0x1010
    [<c01eecf4>] jfs_create+0x324/0x370
    [<c016f38f>] vfs_create+0xaf/0x100
    [<c017269c>] open_namei+0x58c/0x640
    [<c0165b7c>] do_filp_open+0x2c/0x50
    [<c0165be7>] do_sys_open+0x47/0xe0
    [<c0165cbc>] sys_open+0x1c/0x20
    [<c01041c0>] syscall_call+0x7/0xb
    =======================
    Code: 5d c3 8b 58 18 8b 43 04 0f 18 00 90 8b 7d e8 83 c7 14 39 fb 75 2
    4 e9 2d ff ff ff 8d b6 00 00 00 00 48 0f 84 d9 00 00 00 8b 5b 04 <8b> 43 04 0f 18 00 90 39 fb 0f 84
    0e ff ff ff 89 f2 89 d8 e8 2e
    EIP: [<c02206aa>] __make_request+0x13a/0x390 SS:ESP 0068:c653dabc

    --
    mattia
    :wq!
    -
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