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    SubjectRe: 2.6.16-rc1-mm3
    Hi,

    On 26/01/06, Nick Piggin <nickpiggin@yahoo.com.au> wrote:
    > Nick Piggin wrote:
    > Sorry, wrong patch.
    >
    > Note the warnings you are seeing should not result in memory
    > corruption, but will result in the given hugepage leaking.
    >
    > --
    > SUSE Labs, Novell Inc.
    >
    >
    > Index: linux-2.6/include/linux/mm.h
    > ===================================================================
    > --- linux-2.6.orig/include/linux/mm.h
    > +++ linux-2.6/include/linux/mm.h
    > @@ -294,6 +294,8 @@ struct page {
    > */
    > static inline int put_page_testzero(struct page *page)
    > {
    > + if (unlikely(PageCompound(page)))
    > + page = (struct page *)page_private(page);
    > BUG_ON(atomic_read(&page->_count) == 0);
    > return atomic_dec_and_test(&page->_count);
    > }
    >
    >
    >

    Now I have got this:

    BUG: unable to handle kernel paging request at virtual address eaa34b3c
    printing eip:
    b0161cdd
    *pde = 0048a067
    *pte = 3aa34000
    Oops: 0000 [#1]
    PREEMPT SMP DEBUG_PAGEALLOC
    last sysfs file: /devices/pci0000:00/0000:00:1d.1/usb3/idVendor
    Modules linked in: snd_intel8x0 snd_ac97_codec snd_ac97_bus
    snd_pcm_oss snd_mixer_oss snd_pcm snd_timer ide_cd cdrom intel_agp
    agpgart snd i2c_i801 hw_random soundcore snd_page_alloc unix
    CPU: 0
    EIP: 0060:[<b0161cdd>] Not tainted VLI
    EFLAGS: 00010282 (2.6.16-rc1-mm3 #4)
    EIP is at do_path_lookup+0x22b/0x259
    eax: eaa34b20 ebx: eb328000 ecx: 00000000 edx: eb328f4c
    esi: ffffff9c edi: fffffffe ebp: eb328f24 esp: eb328f0c
    ds: 007b es: 007b ss: 0068
    Process udevd (pid: 731, threadinfo=eb328000 task=eb30ca80)
    Stack: <0>00000000 eb5cb000 b015fab1 eb5cb000 eb5cb000 00000000
    eb328f40 b01621f3
    eb328f4c ffffff9c afbf6dec afbf6dec 00000100 eb328f9c b015bf69 eb328f4c
    eaa34b20 b23d5f28 00000000 eb329003 b015f8ce 00000000 00000001 00000000
    Call Trace:
    [<b0103917>] show_stack_log_lvl+0xaa/0xb5
    [<b0103a54>] show_registers+0x132/0x19d
    [<b0103d91>] die+0x171/0x1fb
    [<b02ab110>] do_page_fault+0x3be/0x568
    [<b010343f>] error_code+0x4f/0x54
    [<b01621f3>] __user_walk_fd+0x2d/0x41
    [<b015bf69>] sys_readlinkat+0x26/0x93
    [<b015bfe9>] sys_readlink+0x13/0x15
    [<b01028bf>] sysenter_past_esp+0x54/0x75
    Code: 00 83 c0 04 e8 9a 82 14 00 8b 03 c7 80 e4 01 00 00 00 00 00 00
    8b 55 08 8b 45 ec e8 55 fa ff ff 89 c7 8b 55 08 8b 02 85 c0 74 24 <8b>
    50 1c 85 d2 74 1d b8 00 f0 ff ff 21 e0 8b 00 83 b8 d4 04 00
    <6>ACPI: PCI Interrupt 0000:02:05.0[A] -> GSI 22 (level, low) -> IRQ 21

    Here is dmesg:
    http://www.stardust.webpages.pl/files/mm/2.6.16-rc1-mm3/mm-dmesg2

    Here is config
    http://www.stardust.webpages.pl/files/mm/2.6.16-rc1-mm3/mm-config

    Regards,
    Michal Piotrowski
    -
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