Created attachment 828817 [details]
system log

Description of problem:

System fully hangs (num lock no applicable) 

After reboot I see in system log very many messages as below:

kernel: BUG: scheduling while atomic: Compositor/22518/0x40000001
kernel: INFO: lockdep is turned off.
kernel: Modules linked in: tcp_lp hidp rfcomm nls_utf8 isofs vfat fat fuse nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT xt_conntrack cfg80211 ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw bnep iTCO_wdt joydev iTCO_vendor_support ppdev x86_pkg_temp_thermal btusb coretemp bluetooth kvm_intel kvm rfkill crct10dif_pclmul cdc_ncm crc32_pclmul option usbnet usb_wwan crc32c_intel ghash_clmulni_intel microcode snd_hda_codec_realtek snd_hda_codec_hdmi serio_raw snd_hda_intel snd_hda_codec snd_hwdep snd_seq
kernel:  i2c_i801 snd_seq_device snd_pcm r8169 mii snd_page_alloc snd_timer lpc_ich mei_me snd mfd_core mei shpchp soundcore parport_pc parport binfmt_misc nfsd auth_rpcgss nfs_acl lockd sunrpc hid_logitech_dj usb_storage i915 i2c_algo_bit drm_kms_helper drm i2c_core video
kernel: CPU: 4 PID: 22518 Comm: Compositor Tainted: G    B   W    3.12.0-2.fc21.x86_64+debug #1
kernel: Hardware name: Gigabyte Technology Co., Ltd. Z87M-D3H/Z87M-D3H, BIOS F8 08/03/2013
kernel:  ffff88081f5d5680 ffff8801d24b1c20 ffffffff81742e92 ffff88044dcc4ac0
kernel:  ffff8801d24b1c38 ffffffff8173dde9 ffff88044dcc4ac0 ffff8801d24b1c98
kernel:  ffffffff81749c3a 00000000001d5680 ffff8801d24b1fd8 ffff8801d24b1fd8
kernel: Call Trace:
kernel:  [<ffffffff81742e92>] dump_stack+0x54/0x74
kernel:  [<ffffffff8173dde9>] __schedule_bug+0x66/0x75
kernel:  [<ffffffff81749c3a>] __schedule+0x9fa/0xa30
kernel:  [<ffffffff81749c99>] schedule+0x29/0x70
kernel:  [<ffffffff810f779d>] futex_wait_queue_me+0xdd/0x170
kernel:  [<ffffffff810f80a2>] futex_wait+0x182/0x2a0
kernel:  [<ffffffff810a53b0>] ? hrtimer_get_res+0x50/0x50
kernel:  [<ffffffff810a6514>] ? hrtimer_start_range_ns+0x14/0x20
kernel:  [<ffffffff810f9de6>] do_futex+0xe6/0xc70
kernel:  [<ffffffff81621295>] ? sk_run_filter+0x295/0x700
kernel:  [<ffffffff810ae35f>] ? finish_task_switch+0x3f/0x120
kernel:  [<ffffffff810fa9e1>] SyS_futex+0x71/0x150
kernel:  [<ffffffff81756450>] tracesys+0xdd/0xe2