[    9.640726] systemd-logind[1249]: New seat seat0.
[    9.641217] systemd-logind[1249]: Watching system buttons on /dev/input/event0 (Power Button)
[    9.646948] systemd-logind[1249]: Failed to start unit user@0.service: Unknown unit: user@0.service
[    9.647649] systemd-logind[1249]: Failed to start user service: Unknown unit: user@0.service
[    9.653005] systemd-logind[1249]: New session 1 of user root.
[  109.469094] CPU1 has been hot-added
[  109.477005] SMP alternatives: switching to SMP code
[  109.490583] x86: Booting SMP configuration:
[  109.490586] smpboot: Booting Node 0 Processor 1 APIC 0x1
[  109.476344] kvm-clock: cpu 1, msr 0:3ffe6041, secondary cpu clock
[  109.586704] kvm: enabling virtualization on CPU1
[  109.596330] KVM setup async PF for cpu 1
[  109.596330] kvm-stealtime: cpu 1, msr 3de2d100
[  109.596645] microcode: CPU1: patch_level=0x01000065
[  109.596910] Will online and init hotplugged CPU: 1
[  109.598469] kobject '(null)' (ffff88003de3b5d8): tried to add an uninitialized object, something is seriously wrong.
[  109.599255] CPU: 0 PID: 1424 Comm: systemd-udevd Not tainted 3.16.0-28-generic #38-Ubuntu
[  109.599257] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  109.599259]  ffff880036465250 ffff88003af77c88 ffffffff81781eaa ffff88003de3b5d8
[  109.599263]  ffff88003af77cf8 ffffffff8139e896 ffff880000000020 ffff88003af77d08
[  109.599266]  ffff88003af77cb0 ffff88003af77cc8 ffffffff8137967b 0000000000000001
[  109.599269] Call Trace:
[  109.599276]  [<ffffffff81781eaa>] dump_stack+0x45/0x56
[  109.599280]  [<ffffffff8139e896>] kobject_add+0xa6/0xb0
[  109.599283]  [<ffffffff8137967b>] ? get_first_sibling+0x2b/0x40
[  109.599287]  [<ffffffff8139d08d>] ? ida_get_new_above+0x1dd/0x210
[  109.599291]  [<ffffffff81378b66>] blk_mq_register_hctx+0xa6/0xc0
[  109.599293]  [<ffffffff813794c1>] blk_mq_sysfs_register+0x41/0x60
[  109.599297]  [<ffffffff81376fc2>] blk_mq_queue_reinit_notify+0x72/0xb0
[  109.599300]  [<ffffffff8109972d>] notifier_call_chain+0x4d/0x70
[  109.599303]  [<ffffffff8109983e>] __raw_notifier_call_chain+0xe/0x10
[  109.599306]  [<ffffffff81070133>] cpu_notify+0x23/0x50
[  109.599309]  [<ffffffff81070348>] _cpu_up+0x168/0x180
[  109.599312]  [<ffffffff810703ea>] cpu_up+0x8a/0xb0
[  109.599315]  [<ffffffff81778ee0>] cpu_subsys_online+0x40/0xa0
[  109.599319]  [<ffffffff814cf225>] device_online+0x65/0x90
[  109.599322]  [<ffffffff814cf2cd>] online_store+0x7d/0x90
[  109.599325]  [<ffffffff814cc658>] dev_attr_store+0x18/0x30
[  109.599328]  [<ffffffff8125950a>] sysfs_kf_write+0x3a/0x50
[  109.599331]  [<ffffffff812586ae>] kernfs_fop_write+0xee/0x180
[  109.599335]  [<ffffffff811e10b7>] vfs_write+0xb7/0x1f0
[  109.599338]  [<ffffffff811e1c66>] SyS_write+0x46/0xb0
[  109.599342]  [<ffffffff81789eed>] system_call_fastpath+0x1a/0x1f
[  148.224971] random: nonblocking pool is initialized
[  258.348352] SGI XFS with ACLs, security attributes, realtime, large block/inode numbers, no debug enabled
[  258.362136] JFS: nTxBlock = 7892, nTxLock = 63140
[  258.387986] ntfs: driver 2.1.30 [Flags: R/O MODULE].
[  258.415248] QNX4 filesystem 0.2.3 registered.
[  258.492019] raid6: sse2x1    4132 MB/s
[  258.560015] raid6: sse2x2    7827 MB/s
[  258.628019] raid6: sse2x4    9311 MB/s
[  258.628021] raid6: using algorithm sse2x4 (9311 MB/s)
[  258.628023] raid6: using ssse3x2 recovery algorithm
[  258.630342] xor: automatically using best checksumming function:
[  258.668013]    avx       :  9616.000 MB/sec
[  258.687963] Btrfs loaded
[ 3127.566157] systemd-logind[1249]: New session 3 of user root.