Messages in this thread |  | | | Date | Mon, 25 Oct 2010 16:46:55 -0700 | | From | Randy Dunlap <> | | Subject | Re: [bug 2.6.37-git] lockdep: invalid subclass in mousedev_create() |
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On Tue, 26 Oct 2010 10:40:26 +1100 Dave Chinner wrote:
> Folks, > > Just got this booting a VM on a 2.6.37-git tree from a couple of days ago: > > [ 1.547497] BUG: looking up invalid subclass: 31 > [ 1.548238] turning off the locking correctness validator. > [ 1.548923] Pid: 1, comm: swapper Not tainted 2.6.36-dgc+ #580 > [ 1.549637] Call Trace: > [ 1.550024] [<ffffffff810b88b0>] register_lock_class+0x540/0x550 > [ 1.550880] [<ffffffff810baded>] ? trace_hardirqs_on+0xd/0x10 > [ 1.552001] [<ffffffff810b8925>] ? lockdep_init_map+0x65/0x150 > [ 1.553564] [<ffffffff810b8990>] lockdep_init_map+0xd0/0x150 > [ 1.554980] [<ffffffff8197c7a7>] mousedev_create+0x247/0x2e0 > [ 1.556461] [<ffffffff821af4ee>] ? mousedev_init+0x0/0x61 > [ 1.557857] [<ffffffff821af50a>] mousedev_init+0x1c/0x61 > [ 1.559343] [<ffffffff810001e3>] do_one_initcall+0x43/0x190 > [ 1.560724] [<ffffffff8217a75d>] kernel_init+0x15d/0x1e7 > [ 1.562117] [<ffffffff81037e64>] kernel_thread_helper+0x4/0x10 > [ 1.563693] [<ffffffff81afe690>] ? restore_args+0x0/0x30 > [ 1.565150] [<ffffffff8217a600>] ? kernel_init+0x0/0x1e7 > [ 1.566647] [<ffffffff81037e60>] ? kernel_thread_helper+0x0/0x10 > > Looks like it does: > > #define MOUSEDEV_MIX 31 > .... > lockdep_set_subclass(&mousedev->mutex, > minor == MOUSEDEV_MIX ? MOUSEDEV_MIX : 0);
Hi Dave, Please see this reply: http://lkml.org/lkml/2010/10/25/48
--- ~Randy *** Remember to use Documentation/SubmitChecklist when testing your code ***
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