WARNING: at kernel/lockdep.c:2532 trace_hardirqs_on_caller+0x6b/0x164()

From: Justin P. Mattock
Date: Thu Jul 28 2011 - 13:04:55 EST


the kernel barfed this up:

[ 27.788905] ------------[ cut here ]------------
[ 27.792811] WARNING: at kernel/lockdep.c:2532 trace_hardirqs_on_caller+0x6b/0x164()
[ 27.796539] Hardware name: MacBookPro2,2
[ 27.800111] Modules linked in: bnep arc4 ecb ath9k mac80211 ath9k_common ath9k_hw btusb bluetooth ath cfg80211 sky2 i2c_i801 joydev applesmc input_polldev appletouch uvcvideo videodev v4l2_compat_ioctl32 radeon microcode ttm drm_kms_helper drm i2c_algo_bit rfkill iTCO_wdt iTCO_vendor_support i2c_core apple_bl video [last unloaded: scsi_wait_scan]
[ 27.808066] Pid: 413, comm: bluetoothd Not tainted 3.0.0-05684-ge371d46 #2
[ 27.811979] Call Trace:
[ 27.811990] [<ffffffff8104f788>] warn_slowpath_common+0x83/0x9b
[ 27.811997] [<ffffffff814a03f3>] ? __bad_area_nosemaphore+0x3a/0x1bc
[ 27.812000] [<ffffffff8104f7ba>] warn_slowpath_null+0x1a/0x1c
[ 27.812018] [<ffffffff8107fa43>] trace_hardirqs_on_caller+0x6b/0x164
[ 27.812022] [<ffffffff8107fb49>] trace_hardirqs_on+0xd/0xf
[ 27.812025] [<ffffffff814a03f3>] __bad_area_nosemaphore+0x3a/0x1bc
[ 27.812028] [<ffffffff814a05d4>] bad_area+0x4a/0x51
[ 27.812032] [<ffffffff814ae2f1>] do_page_fault+0x230/0x38b
[ 27.812036] [<ffffffff8107c83b>] ? trace_hardirqs_off_caller+0x33/0x90
[ 27.812041] [<ffffffff8123400d>] ? trace_hardirqs_off_thunk+0x3a/0x3c
[ 27.812047] [<ffffffff814ab575>] page_fault+0x25/0x30
[ 27.812050] ---[ end trace 2ed648d504c98e26 ]---

full dmesg here:
http://fpaste.org/VFHu/

not harmful given its a warning, but might as well post so people can see. if there is a patch let me know and I will test.

Justin P. Mattock
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