Fedora (and even more fedora-devel) kernels are built with lots of expensive debuging options to help improve the kernel code faster, conforming to Fedora's mission.

However the resulting errors are completely ignored by abrt and as far as I can tell all those computing cycles spent verifying kernel correctness are completely wasted. abrt should capture all kernel traces, even if they are informationnal, and send them to bugzilla/kerneloops for analysis

Example of such an unreported trace:

   28.556610] =============================================
[   28.557007] [ INFO: possible recursive locking detected ]
[   28.557007] 3.1.0-0.rc0.git19.1.fc17.x86_64 #1
[   28.557007] ---------------------------------------------
[   28.557007] modprobe/684 is trying to acquire lock:
[   28.557007]  (&hdl->lock){+.+...}, at: [<ffffffffa02919ba>] find_ref_lock+0x24/0x46 [videodev]
[   28.557007] 
[   28.557007] but task is already holding lock:
[   28.557007]  (&hdl->lock){+.+...}, at: [<ffffffffa029380f>] v4l2_ctrl_add_handler+0x49/0x97 [videodev]
[   28.557007] 
[   28.557007] other info that might help us debug this:
[   28.557007]  Possible unsafe locking scenario:
[   28.557007] 
[   28.557007]        CPU0
[   28.557007]        ----
[   28.557007]   lock(&hdl->lock);
[   28.557007]   lock(&hdl->lock);
[   28.557007] 
[   28.557007]  *** DEADLOCK ***
[   28.557007] 
[   28.557007]  May be due to missing lock nesting notation
[   28.557007] 
[   28.557007] 3 locks held by modprobe/684:
[   28.557007]  #0:  (&__lockdep_no_validate__){......}, at: [<ffffffff81314d0c>] __driver_attach+0x3b/0x82
[   28.557007]  #1:  (&__lockdep_no_validate__){......}, at: [<ffffffff81314d1a>] __driver_attach+0x49/0x82
[   28.557007]  #2:  (&hdl->lock){+.+...}, at: [<ffffffffa029380f>] v4l2_ctrl_add_handler+0x49/0x97 [videodev]
[   28.557007] 
[   28.557007] stack backtrace:
[   28.557007] Pid: 684, comm: modprobe Not tainted 3.1.0-0.rc0.git19.1.fc17.x86_64 #1
[   28.557007] Call Trace:
[   28.557007]  [<ffffffff8108eb06>] __lock_acquire+0x917/0xcf7
[   28.557007]  [<ffffffff81014fbe>] ? sched_clock+0x9/0xd
[   28.557007]  [<ffffffff8108dffc>] ? mark_lock+0x2d/0x220
[   28.557007]  [<ffffffffa02919ba>] ? find_ref_lock+0x24/0x46 [videodev]
[   28.557007]  [<ffffffff8108f3dc>] lock_acquire+0xf3/0x13e
[   28.584886]  [<ffffffffa02919ba>] ? find_ref_lock+0x24/0x46 [videodev]
[   28.585146]  [<ffffffffa02919ba>] ? find_ref_lock+0x24/0x46 [videodev]
[   28.585146]  [<ffffffff814f2523>] __mutex_lock_common+0x5d/0x39a
[   28.585146]  [<ffffffffa02919ba>] ? find_ref_lock+0x24/0x46 [videodev]
[   28.585146]  [<ffffffff8108f6db>] ? mark_held_locks+0x6d/0x95
[   28.585146]  [<ffffffff814f282f>] ? __mutex_lock_common+0x369/0x39a
[   28.585146]  [<ffffffff8108f830>] ? trace_hardirqs_on_caller+0x12d/0x164
[   28.585146]  [<ffffffff814f296f>] mutex_lock_nested+0x40/0x45
[   28.585146]  [<ffffffffa02919ba>] find_ref_lock+0x24/0x46 [videodev]
[   28.585146]  [<ffffffffa029367e>] handler_new_ref+0x42/0x18a [videodev]
[   28.585146]  [<ffffffffa0293833>] v4l2_ctrl_add_handler+0x6d/0x97 [videodev]
[   28.585146]  [<ffffffffa028f71b>] v4l2_device_register_subdev+0x16c/0x257 [videodev]
[   28.585146]  [<ffffffffa02ddfe9>] ivtv_gpio_init+0x14e/0x159 [ivtv]
[   28.585146]  [<ffffffffa02ebd57>] ivtv_probe+0xdc4/0x1662 [ivtv]
[   28.585146]  [<ffffffff8108f6c3>] ? mark_held_locks+0x55/0x95
[   28.585146]  [<ffffffff814f41df>] ? _raw_spin_unlock_irqrestore+0x4d/0x61
[   28.585146]  [<ffffffff8126a12b>] local_pci_probe+0x44/0x75
[   28.585146]  [<ffffffff8126acb1>] pci_device_probe+0xd0/0xff
[   28.585146]  [<ffffffff81314bef>] driver_probe_device+0x131/0x213
[   28.585146]  [<ffffffff81314d2f>] __driver_attach+0x5e/0x82
[   28.585146]  [<ffffffff81314cd1>] ? driver_probe_device+0x213/0x213
[   28.585146]  [<ffffffff81313c30>] bus_for_each_dev+0x59/0x8f
[   28.585146]  [<ffffffff813147c3>] driver_attach+0x1e/0x20
[   28.585146]  [<ffffffff813143db>] bus_add_driver+0xd4/0x22a
[   28.585146]  [<ffffffffa02ff000>] ? 0xffffffffa02fefff
[   28.585146]  [<ffffffff813151f2>] driver_register+0x98/0x105
[   28.618302]  [<ffffffffa02ff000>] ? 0xffffffffa02fefff
[   28.618302]  [<ffffffff8126b584>] __pci_register_driver+0x66/0xd2
[   28.618302]  [<ffffffffa02ff000>] ? 0xffffffffa02fefff
[   28.618302]  [<ffffffffa02ff078>] module_start+0x78/0x1000 [ivtv]
[   28.618302]  [<ffffffff81002099>] do_one_initcall+0x7f/0x13a
[   28.618302]  [<ffffffffa02ff000>] ? 0xffffffffa02fefff
[   28.618302]  [<ffffffff8109a864>] sys_init_module+0x114/0x267
[   28.618302]  [<ffffffff814fafc2>] system_call_fastpath+0x16/0x1b