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    SubjectRe: 2.6.20-mm2
    On 19/02/07, Rafael J. Wysocki <rjw@sisk.pl> wrote:
    > On Monday, 19 February 2007 01:00, Andrew Morton wrote:
    > > On Mon, 19 Feb 2007 00:25:48 +0100 "Rafael J. Wysocki" <rjw@sisk.pl> wrote:
    > >
    > > > > netconsole is good.
    > > >
    > > > I know. :-)
    > > >
    > > > In the meantime, I've got something worse on another x86_64 box:
    > > >
    > > > Asus Laptop ACPI Extras version 0.30
    > > > L5D model detected, supported
    > > > audit(1171831698.918:2): audit_pid=4281 old=0 by auid=4294967295
    > > > general protection fault: 0000 [2] PREEMPT
    > > > last sysfs file: /class/net/eth2/carrier
    > > > CPU 0
    > > > Modules linked in: af_packet ipv6 snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device asus_acpi backlight button battery ac dm_mod pcmr
    > > > Pid: 178, comm: pdflush Not tainted 2.6.20-mm2 #1
    > > > RIP: 0010:[<ffffffff8034bce4>] [<ffffffff8034bce4>] __make_request+0x134/0x370
    > > > RSP: 0000:ffff81005ed659a0 EFLAGS: 00010297
    > > > RAX: 00000000ffffffff RBX: 6b6b6b6b6b6b6b6b RCX: 000000000203396a
    > > > RDX: 0000000100000000 RSI: ffff810037b4dbb0 RDI: ffff81004683d8c0
    > > > RBP: ffff81005ed659f0 R08: ffff81004683d070 R09: ffff81003d333cc0
    > > > R10: 0000000000000000 R11: 0000000000000000 R12: ffff810037b4dbb0
    > > > R13: ffff81005daba3f0 R14: ffff810037daca90 R15: ffff81005daba3d0
    > > > FS: 00002ad4a29e6d00(0000) GS:ffffffff805db000(0000) knlGS:0000000000000000
    > > > CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
    > > > CR2: 00002b6a345aa000 CR3: 0000000056585000 CR4: 00000000000006e0
    > > > Process pdflush (pid: 178, threadinfo ffff81005ed64000, task ffff810037b060c0)
    > > > Stack: ffff810002852540 0000000000000001 ffff810037b4dbb0 ffffffff8026be21
    > > > ffff81005ed65a40 0000000000000008 ffff810037b4dbb0 0000000000000800
    > > > 0000000000000008 ffff8100021d94e0 ffff81005ed65a40 ffffffff80348e7c
    > > > Call Trace:
    > > > [<ffffffff8026be21>] mempool_alloc_slab+0x11/0x20
    > > > [<ffffffff80348e7c>] generic_make_request+0x1ec/0x230
    > >
    > > yeah. everyone except me is hitting that.
    >
    > FWIW, I don't see it on an SMP machine.
    >

    I can reproduce this on my SMT P4.

    CONFIG_SMP=y
    CONFIG_X86_PC=y
    CONFIG_MPENTIUM4=y
    CONFIG_NR_CPUS=2
    CONFIG_SCHED_SMT=y

    Regards,
    Michal

    --
    Michal K. K. Piotrowski
    LTG - Linux Testers Group (PL)
    (http://www.stardust.webpages.pl/ltg/)
    LTG - Linux Testers Group (EN)
    (http://www.stardust.webpages.pl/linux_testers_group_en/)
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