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    SubjectRe: slab corruption with current -git
    On 2016.10.11 at 04:57 -0400, David Miller wrote:
    > From: Linus Torvalds <torvalds@linux-foundation.org>
    > Date: Mon, 10 Oct 2016 22:47:50 -0700
    >
    > > On Mon, Oct 10, 2016 at 10:39 PM, Linus Torvalds
    > > <torvalds@linux-foundation.org> wrote:
    > >>
    > >> I guess I will have to double-check that the slub corruption is gone
    > >> still with that fixed.
    > >
    > > So I'm not getting any warnings now from SLUB debugging. So the
    > > original bug seems to not have re-surfaced, and the registration bug
    > > is gone, so now the unregistration doesn't warn about anything either.
    > >
    > > But I only rebooted three times.
    >
    > Looks good to me, I applied it to my tree with your signoff and will
    > send you a pull request right now.

    I'm still seeing:

    nf_conntrack version 0.5.0 (4096 buckets, 16384 max)
    ctnetlink v0.93: registering with nfnetlink.
    ip_tables: (C) 2000-2006 Netfilter Core Team
    WARNING: kmemcheck: Caught 64-bit read from uninitialized memory (ffff88001e605480)
    4055601e0088ffff000000000000000090686d81ffffffff0000000000000000
    u u u u u u u u u u u u u u u u i i i i i i i i u u u u u u u u
    ^
    RIP: 0010:[<ffffffff8166e561>] [<ffffffff8166e561>] nf_register_net_hook+0x51/0x160
    RSP: 0018:ffffc9000000bcc0 EFLAGS: 00010286
    RAX: ffff88001e5af9c0 RBX: ffff88001e605480 RCX: 0000000000000000
    RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88001e5b0a20
    RBP: ffffc9000000bcd8 R08: 000000001fd0e000 R09: 0000000000000000
    R10: ffff88001e5b09c0 R11: 0000000000000067 R12: ffff88001e5af9c0
    R13: ffffffff81c5c0c8 R14: 0000000000000003 R15: ffff88001e605480
    FS: 0000000000000000(0000) GS:ffff88001fa00000(0000) knlGS:0000000000000000
    CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    CR2: ffff88001f45ca18 CR3: 0000000001c07000 CR4: 00000000000006f0
    [<ffffffff8166e561>] nf_register_net_hook+0x51/0x160
    [<ffffffff8166eaaf>] nf_register_net_hooks+0x3f/0xa0
    [<ffffffff816d6715>] ipt_register_table+0xe5/0x110
    [<ffffffff816d6815>] iptable_filter_table_init.part.1+0x55/0x80
    [<ffffffff816d688b>] iptable_filter_net_init+0x2b/0x30
    [<ffffffff8163edd7>] ops_init+0x47/0x150
    [<ffffffff8163f0c6>] register_pernet_operations+0xd6/0x170
    [<ffffffff8163fb77>] register_pernet_subsys+0x27/0x40
    [<ffffffff81cb9de3>] iptable_filter_init+0x33/0x4b
    [<ffffffff81c8bef0>] do_one_initcall+0x8b/0x113
    [<ffffffff81c8c091>] kernel_init_freeable+0x119/0x1a1
    [<ffffffff816efd09>] kernel_init+0x9/0x100
    [<ffffffff816f4e12>] ret_from_fork+0x22/0x30
    [<ffffffffffffffff>] 0xffffffffffffffff
    NET: Registered protocol family 17
    9pnet: Installing 9P2000 support


    --
    Markus

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