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    SubjectRe: [PATCH tip/core/rcu 0/8] rcu: add lockdep-based diagnostics to rcu_dereference()
    On Wed, Jan 13, 2010 at 10:22:42AM +0100, Ingo Molnar wrote:
    >
    > FYI, i'm getting various runtime warnings triggered by the new RCU checks:
    >
    > [ 20.630034] WARNING: at net/core/sock.c:1076 __sk_free+0x108/0x140()
    >
    > bootlog and config attached.

    Gah!!! I forgot to label the RCU-lockdep stuff "RFC"!!! Could you
    please rewind tip/core/rcu back to b6407e8639 ("rcu: Give different
    levels of the rcu_node hierarchy distinct lockdep names")?

    I have fixes for many of the warnings below, both as modifications to
    uses of RCU and as modifications to the check code itself. But I have
    been building a new patchsets rather than keeping patches on top of this
    patchset. I also have modifications in the works to ease transition,
    for example, but having a separate CONFIG_PROVE_RCU.

    Please accept my apologies for the mislabeling!!!

    Thanx, Paul

    > Thanks,
    >
    > Ingo

    > #
    > # Automatically generated make config: don't edit
    > # Linux kernel version: 2.6.33-rc4
    > # Wed Jan 13 11:44:27 2010
    > #
    > # CONFIG_64BIT is not set
    > CONFIG_X86_32=y
    > # CONFIG_X86_64 is not set
    > CONFIG_X86=y


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