Bug 1058461

Additional info:
reporter:       libreport-2.1.11
BUG: soft lockup - CPU#1 stuck for 22s! [qemu-system-x86:2197]
Modules linked in: vhost_net vhost macvtap macvlan fuse bnep bluetooth ipt_MASQUERADE xt_CHECKSUM tun ip6t_rpfilter ip6t_REJECT xt_conntrack drbd lru_cache libcrc32c 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 iTCO_wdt iTCO_vendor_support x86_pkg_temp_thermal coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel arc4 microcode ath9k ath9k_common serio_raw ath9k_hw ath mac80211 r8169 cfg80211 8139too rfkill 8139cp mii snd_hda_codec_realtek i2c_i801 lpc_ich mfd_core snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm tpm_tis tpm snd_timer snd soundcore mei_me mei shpchp binfmt_misc nfsd auth_rpcgss nfs_acl lockd sunrpc usb_storage ata_generic pata_acpi firewire_ohci nouveau firewire_core crc_itu_t video i2c_algo_bit drm_kms_helper ttm pata_marvell drm i2c_core mxm_wmi wmi
irq event stamp: 2146349778
hardirqs last  enabled at (2146349777): [<ffffffffa06715d3>] kvm_arch_vcpu_ioctl_run+0x363/0x1510 [kvm]
hardirqs last disabled at (2146349778): [<ffffffff817a7c2d>] apic_timer_interrupt+0x6d/0x80
softirqs last  enabled at (2146344478): [<ffffffff810991ce>] __do_softirq+0x1ce/0x460
softirqs last disabled at (2146344473): [<ffffffff81099795>] irq_exit+0xc5/0xd0
CPU: 1 PID: 2197 Comm: qemu-system-x86 Not tainted 3.14.0-0.rc0.git9.1.fc21.x86_64 #1
Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./P67 Extreme4, BIOS P1.60 02/18/2011
task: ffff88008e205010 ti: ffff8802c9ed0000 task.ti: ffff8802c9ed0000
RIP: 0010:[<ffffffffa06715d7>]  [<ffffffffa06715d7>] kvm_arch_vcpu_ioctl_run+0x367/0x1510 [kvm]
RSP: 0018:ffff8802c9ed1d70  EFLAGS: 00000206
RAX: ffff88008e205010 RBX: ffff8802c9ed1d30 RCX: 0000000000000006
RDX: 0000000000005d30 RSI: ffff88008e205b38 RDI: ffff88008e205010
RBP: ffff8802c9ed1e38 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000006
R13: 0000000000000006 R14: ffff88008e205b38 R15: 0000000000000000
FS:  00007fee732a1700(0000) GS:ffff8800bea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000002de062000 CR4: 00000000000427e0
Stack:
 ffffffffa067241a ffff8802de2c0048 ffff8802c9ed1d90 ffff88008e205010
 ffff88008e205010 ffff88008e205010 ffff8802c9ed1fd8 0000000000000001
 ffffffffa065867c 00ff8802de2c00b8 ffff8800906ac280 fffffffe7ffbfeff
Call Trace:
 [<ffffffffa067241a>] ? kvm_arch_vcpu_ioctl_run+0x11aa/0x1510 [kvm]
 [<ffffffffa065867c>] ? vcpu_load+0x1c/0xa0 [kvm]
 [<ffffffffa066d8fe>] ? kvm_arch_vcpu_load+0x4e/0x1e0 [kvm]
 [<ffffffffa06589fd>] kvm_vcpu_ioctl+0x2bd/0x670 [kvm]
 [<ffffffff810c4ee2>] ? creds_are_invalid.part.1+0x12/0x50
 [<ffffffff810c4f41>] ? creds_are_invalid+0x21/0x30
 [<ffffffff813415c6>] ? inode_has_perm.isra.51+0x26/0x80
 [<ffffffff81237b70>] do_vfs_ioctl+0x300/0x520
 [<ffffffff81341c2b>] ? selinux_file_ioctl+0x5b/0x110
 [<ffffffff81237e11>] SyS_ioctl+0x81/0xa0
 [<ffffffff817a6f29>] system_call_fastpath+0x16/0x1b
Code: 66 90 66 66 90 e8 5a cd a7 e0 83 7b 2c 02 74 0b 48 83 7b 30 00 0f 84 81 08 00 00 c7 43 2c 00 00 00 00 e8 6d 06 a8 e0 fb 66 66 90 <66> 66 90 65 ff 0c 25 60 c9 00 00 4c 8b 23 49 8d bc 24 00 01 00