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Subjectlockdep trace from post 3.0.
Just got this from a tree pulled this afternoon.

Dave

WARNING: at kernel/lockdep.c:2532 trace_hardirqs_on_caller+0x77/0x170()
Hardware name: Adamo 13
Modules linked in: can_raw cmtp kernelcapi hidp can_bcm caif_socket caif af_802154 phonet af_rxrpc can pppoe pppox ppp_generic slhc irda crc_ccitt rds af_key decnet rose ax25 x25 atm appletalk ipx p8022 psnap p8023 fuse ppdev ebtable_nat ebtables parport_pc lp parport ipt_MASQUERADE iptable_nat nf_nat nfsd lockd nfs_acl auth_rpcgss xt_CHECKSUM iptable_mangle sunrpc bridge stp llc cpufreq_ondemand acpi_cpufreq freq_table mperf ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables rfcomm bnep btusb bluetooth arc4 snd_hda_codec_hdmi snd_hda_codec_idt snd_usb_audio snd_hda_intel snd_hda_codec snd_usbmidi_lib snd_hwdep snd_rawmidi snd_seq dell_wmi sparse_keymap snd_seq_device cdc_acm cdc_ether iwlagn cdc_wdm usbnet mii uvcvideo mac80211 snd_pcm videodev dell_laptop v4l2_compat_ioctl32 i2c_i801 dcdbas joydev pcspkr cfg80211 microcode snd_timer iTCO_wdt rfkill iTCO_vendor_support snd soundcore snd_page_alloc tg3 wmi virtio_net kvm_intel kvm ipv6 xts gf128mul dm_crypt i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
Pid: 21180, comm: trinity Not tainted 3.0.0+ #101
Call Trace:
[<ffffffff81057eac>] warn_slowpath_common+0x83/0x9b
[<ffffffff814c581b>] ? __bad_area_nosemaphore+0x3a/0x1c2
[<ffffffff81057ede>] warn_slowpath_null+0x1a/0x1c
[<ffffffff8108b8ec>] trace_hardirqs_on_caller+0x77/0x170
[<ffffffff8108b9f2>] trace_hardirqs_on+0xd/0xf
[<ffffffff814c581b>] __bad_area_nosemaphore+0x3a/0x1c2
[<ffffffff814c5a02>] bad_area+0x4a/0x51
[<ffffffff814d3fea>] do_page_fault+0x22a/0x39d
[<ffffffff814d0ff1>] ? _raw_spin_unlock_irq+0x2d/0x5e
[<ffffffff810d6709>] ? trace_preempt_on+0x15/0x28
[<ffffffff81045490>] ? finish_task_switch+0x7c/0xea
[<ffffffff814d1000>] ? _raw_spin_unlock_irq+0x3c/0x5e
[<ffffffff814d41fe>] ? sub_preempt_count+0xa1/0xb4
[<ffffffff810d66e0>] ? time_hardirqs_off+0x1b/0x2f
[<ffffffff81087d97>] ? trace_hardirqs_off_caller+0x3f/0x9c
[<ffffffff8126757d>] ? trace_hardirqs_off_thunk+0x3a/0x3c
[<ffffffff814d1925>] page_fault+0x25/0x30
---[ end trace 120056b859fb46b6 ]---



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