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    SubjectRe: 2.6.18-rc5-mm1 + all hotfixes -- INFO: possible recursive locking detected
    Miles Lane wrote:
    > On 9/5/06, Andrew Morton <akpm@osdl.org> wrote:
    >> On Tue, 5 Sep 2006 10:37:51 -0700
    >> "Miles Lane" <miles.lane@gmail.com> wrote:
    >>
    >>> ieee1394: Node changed: 0-01:1023 -> 0-00:1023
    >>> ieee1394: Node changed: 0-02:1023 -> 0-01:1023
    >>> ieee1394: Node suspended: ID:BUS[0-00:1023] GUID[0080880002103eae]
    >>>
    >>> =============================================
    >>> [ INFO: possible recursive locking detected ]
    >>> 2.6.18-rc5-mm1 #2
    >>> ---------------------------------------------
    >>> knodemgrd_0/2321 is trying to acquire lock:
    >>> (&s->rwsem){----}, at: [<f8958897>] nodemgr_probe_ne+0x311/0x38d [ieee1394]
    >>>
    >>> but task is already holding lock:
    >>> (&s->rwsem){----}, at: [<f8959078>] nodemgr_host_thread+0x717/0x883 [ieee1394]

    How often does this happen?

    [...]
    >> That's a 1394 glitch, possibly introduced by git-ieee1394.patch.
    >
    > Would you like me to verify that removing the patch fixes it, or
    > should I wait for the 2.6.18-rc6-mm1 tree?

    My patches
    "ieee1394: nodemgr: switch to kthread api, replace reset semaphore" and
    "ieee1394: nodemgr: convert nodemgr_serialize semaphore to mutex"
    may be relevant. They are included in git-ieee1394.patch.

    Could you revert them individually and test? It should be possible to
    just "patch -p1 -R < ...." the following patchfiles:
    http://me.in-berlin.de/~s5r6/linux1394/updates/2.6.18-rc5/patches/119-ieee1394-nodemgr-convert-nodemgr_serialize-semaphore-to-mutex.patch
    If the problem persists, also revert
    http://me.in-berlin.de/~s5r6/linux1394/updates/2.6.18-rc5/patches/118-ieee1394-nodemgr-switch-to-kthread-api--replace-reset-semaphore.patch

    If that does not help, install them again and unapply all ieee1394
    patches from -mm. If you have the time.

    Thanks a lot,
    --
    Stefan Richter
    -=====-=-==- =--= --=-=
    http://arcgraph.de/sr/
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