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    SubjectRe: kernel BUG at fs/ext/super.c:428
    On Tue, Jan 13, 2009 at 08:40:59PM -0800, Theodore Tso wrote:
    > On Wed, Jan 14, 2009 at 02:48:13AM +0000, Arjan van de Ven wrote:
    > >> Well, Arjan's commit, efaee192: "async: make the final inode deletion
    > >> an asynchronous event", does change how inodes get deleted, and this
    > >> looks like a race where an inode is getting deleted during the umount.
    > >>
    > >> So I would try reverting commit efaee192 and see if it fixes things
    > >> before starting a full bisect...
    > >
    > > the commit is already reverted before rc1
    > >
    > Ah, right. I see, the async infrastructure is still in fs/super.c,
    > but the actual code to insert deleted inodes onto the s_async_list was
    > removed in commit b32714b. Sorry, that confused me.
    > OK, so assuming that Venkatesh was using something post-rc1, I can't
    > suggest anything other than a full bisect. Sorry....

    Below is the result of full bisect

    38d47c1b7075bd7ec3881141bb3629da58f88dab is first bad commit
    commit 38d47c1b7075bd7ec3881141bb3629da58f88dab
    Author: Peter Zijlstra <>
    Date: Fri Sep 26 19:32:20 2008 +0200

    futex: rely on get_user_pages() for shared futexes

    On the way of getting rid of the mmap_sem requirement for shared futexes,
    start by relying on get_user_pages().

    Signed-off-by: Peter Zijlstra <>
    Acked-by: Nick Piggin <>
    Signed-off-by: Ingo Molnar <>

    :040000 040000 029e79e0a7421438c2a7437dd210a1acf40b6c29 b581716762c1952c0f515fac642690514e7224b7 M include
    :040000 040000 5f604b60974dbb9b0ac1a0910234f28c43a5e691 10c576cabe7eae661501ec38861a0f7488d5353b M kernel

    git-bisect start
    # good: [4a6908a3a050aacc9c3a2f36b276b46c0629ad91] Linux 2.6.28
    git-bisect good 4a6908a3a050aacc9c3a2f36b276b46c0629ad91
    # bad: [c59765042f53a79a7a65585042ff463b69cb248c] Linux 2.6.29-rc1
    git-bisect bad c59765042f53a79a7a65585042ff463b69cb248c
    # bad: [590cf28580c999c8ba70dc39b40bab09d69e2630] Merge git://
    git-bisect bad 590cf28580c999c8ba70dc39b40bab09d69e2630
    # good: [0191b625ca5a46206d2fb862bb08f36f2fcb3b31] Merge git://
    git-bisect good 0191b625ca5a46206d2fb862bb08f36f2fcb3b31
    # good: [134179823b3ca9c8b98e0631906459dbb022ff9b] V4L/DVB (10130): use USB API functions rather than constants
    git-bisect good 134179823b3ca9c8b98e0631906459dbb022ff9b
    # good: [47992cbdaef2f18a47871b2ed01ad27f568c8b73] Merge branch 'for-rmk' of git:// into devel
    git-bisect good 47992cbdaef2f18a47871b2ed01ad27f568c8b73
    # bad: [6de71484cf9561edb45224f659a9db38b6056d5e] Merge git://
    git-bisect bad 6de71484cf9561edb45224f659a9db38b6056d5e
    # bad: [179475a3b46f86e2d06f83e2312218ac3f0cf3a7] Merge branch 'irq-core-for-linus' of git://
    git-bisect bad 179475a3b46f86e2d06f83e2312218ac3f0cf3a7
    # bad: [cc37d3d20604f3759d269247b022616f710aa52d] Merge branch 'core/futexes' into core/core
    git-bisect bad cc37d3d20604f3759d269247b022616f710aa52d
    # good: [7918baa555140989eeee1270f48533987d48fdba] mutex: __used is needed for function referenced only from inline asm
    git-bisect good 7918baa555140989eeee1270f48533987d48fdba
    # bad: [b19b3c74c7bbec45a848631b8f970ac110665a01] Merge branches 'core/debug', 'core/futexes', 'core/locking', 'core/rcu', 'core/signal', 'core/urgent' and 'core/xen' into core/core
    git-bisect bad b19b3c74c7bbec45a848631b8f970ac110665a01
    # bad: [42569c39917a08e8de1e8b5685463be7b74baebd] futex: fixup get_futex_key() for private futexes
    git-bisect bad 42569c39917a08e8de1e8b5685463be7b74baebd
    # bad: [61270708ecf1cda148e84fbf6e0703ee5aa81814] futex: reduce mmap_sem usage
    git-bisect bad 61270708ecf1cda148e84fbf6e0703ee5aa81814
    # bad: [38d47c1b7075bd7ec3881141bb3629da58f88dab] futex: rely on get_user_pages() for shared futexes
    git-bisect bad 38d47c1b7075bd7ec3881141bb3629da58f88dab

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      Last update: 2009-01-14 20:19    [W:0.023 / U:55.948 seconds]
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