[ 0.516920] kvm: no hardware support [ 1.692850] [drm:intel_sbi_read] *ERROR* timeout waiting for SBI to complete read transaction [ 1.795851] [drm:intel_sbi_write] *ERROR* timeout waiting for SBI to complete write transaction [ 6.900039] BUG: unable to handle kernel NULL pointer dereference at 0000000000000070 [ 6.900956] IP: reset_common_ring+0x9a/0x100 [ 6.901386] PGD 36248067 [ 6.901386] PUD 36247067 [ 6.901680] PMD 0 [ 6.902128] [ 6.902539] Oops: 0000 [#1] PREEMPT SMP [ 6.902957] Modules linked in: e1000 [ 6.903326] CPU: 0 PID: 21 Comm: kworker/0:1 Not tainted 4.10.0-rc6+ #8 [ 6.904035] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.9.3-0-ge2fc41e-prebuilt.qemu-project.org 04/01/2014 [ 6.905240] Workqueue: events_long i915_hangcheck_elapsed [ 6.905830] task: ffff88007d279b80 task.stack: ffffc900000a8000 [ 6.906425] RIP: 0010:reset_common_ring+0x9a/0x100 [ 6.906950] RSP: 0018:ffffc900000abb98 EFLAGS: 00010246 [ 6.907478] RAX: 0000000000000000 RBX: ffff880036e54000 RCX: 0000000000000008 [ 6.908225] RDX: 0000000000003fd8 RSI: ffff880079bc8000 RDI: 0000000000000000 [ 6.908987] RBP: ffffc900000abbb0 R08: 0000000000000001 R09: ffffc900100010a0 [ 6.909700] R10: ffff88003670d188 R11: 0000000000000040 R12: ffff88007d30f600 [ 6.910451] R13: ffff88007c420000 R14: ffff88007d30f600 R15: 000000000000001a [ 6.911199] FS: 0000000000000000(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000 [ 6.912046] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 6.912616] CR2: 0000000000000070 CR3: 0000000036249000 CR4: 00000000003406f0 [ 6.913376] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 6.914132] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 6.914846] Call Trace: [ 6.915135] i915_gem_reset_finish+0x229/0x3a0 [ 6.915583] ? intel_uncore_forcewake_put+0x48/0x60 [ 6.916112] i915_reset+0xd5/0x160 [ 6.916453] i915_reset_and_wakeup+0xe9/0x150 [ 6.916901] i915_handle_error+0x1a0/0x210 [ 6.917345] ? scnprintf+0x3d/0x70 [ 6.917684] hangcheck_declare_hang+0xcb/0xf0 [ 6.918173] ? intel_engine_get_active_head+0xb4/0xe0 [ 6.918668] i915_hangcheck_elapsed+0x27f/0x2b0 [ 6.919172] process_one_work+0x13d/0x4a0 [ 6.919576] worker_thread+0x48/0x4e0 [ 6.919961] ? _raw_write_unlock_irqrestore+0x2e/0x60 [ 6.920506] ? preempt_count_sub+0x4c/0x80 [ 6.920920] kthread+0x101/0x140 [ 6.921288] ? process_one_work+0x4a0/0x4a0 [ 6.921705] ? kthread_create_on_node+0x40/0x40 [ 6.922209] ret_from_fork+0x31/0x40 [ 6.922570] Code: 48 8b 83 80 00 00 00 c7 40 3c ff ff ff ff 48 8b bb 80 00 00 00 e8 97 3b 00 00 8b 05 75 b6 9f 00 85 c0 75 5d 49 8b bd 88 02 00 00 <48> 8b 47 70 48 39 43 70 74 3d 48 85 ff 74 06 3e 83 2f 01 74 48 [ 6.924526] RIP: reset_common_ring+0x9a/0x100 RSP: ffffc900000abb98 [ 6.925153] CR2: 0000000000000070 [ 6.925526] ---[ end trace 9c68741eebecd572 ]--- /dev/sda1: clean, 288399/732960 files, 2745255/2931200 blocks [ 7.852930] EXT4-fs (sda1): mounted filesystem with ordered data mode. Opts: (null) [ 7.950324] systemd[1]: systemd 229 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN) [ 7.952473] systemd[1]: Detected virtualization qemu. [ 7.953214] systemd[1]: Detected architecture x86-64. [ 7.954254] systemd[1]: Set hostname to . [ 8.079117] systemd[1]: Reached target Encrypted Volumes. [ 8.079842] systemd[1]: Listening on fsck to fsckd communication Socket. [ 8.080531] systemd[1]: Listening on /dev/initctl Compatibility Named Pipe. [ 8.081330] systemd[1]: Created slice System Slice. [ 8.081912] systemd[1]: Listening on Journal Socket (/dev/log). [ 8.082530] systemd[1]: Started Forward Password Requests to Wall Directory Watch. [FAILED] Failed to start Load Kernel Modules. See 'systemctl status systemd-modules-load.service' for details. Mounting FUSE Control File System... Starting Apply Kernel Variables... Mounting Configuration File System... [ OK ] Mounted Huge Pages File System. [ OK ] Mounted POSIX Message Queue File System. [ OK ] Mounted Debug File System. [ OK ] Mounted FUSE Control File System. [ OK ] Mounted Configuration File System. [ OK ] Started udev Kernel Device Manager. Starting Remount Root and Kernel File Systems... [ OK ] Started Apply Kernel Variables. [ OK ] Started Remount Root and Kernel File Systems. Starting udev Coldplug all Devices... Starting Load/Save Random Seed... [ OK ] Started Load/Save Random Seed. [ OK ] Started Journal Service. Starting Flush Journal to Persistent Storage... [ OK ] Started Set console keymap. [ OK ] Started Flush Journal to Persistent Storage. [ OK ] Reached target Local File Systems (Pre). [ OK ] Reached target Local File Systems. Starting Run snappy firstboot setup... Starting LSB: AppArmor initialization... Starting Create Volatile Files and Directories... Starting Clean up any mess left by 0dns-up... Starting Set console font and keymap... Starting Tell Plymouth To Write Out Runtime Data... [ OK ] Started Create Volatile Files and Directories. Starting Network Time Synchronization... Starting Update UTMP about System Boot/Shutdown... [ OK ] Started Network Time Synchronization. [ OK ] Started Tell Plymouth To Write Out Runtime Data. [ OK ] Started Run snappy firstboot setup. [ OK ] Reached target System Time Synchronized. [ OK ] Started Update UTMP about System Boot/Shutdown. [ OK ] Started udev Coldplug all Devices. Starting Show Plymouth Boot Screen... [ OK ] Started Clean up any mess left by 0dns-up. Starting Nameserver information manager... [-1;-1f[?25lqemu-system-x86_64: terminating on signal 15 from pid 3179 () qemu-system-x86_64: network script /etc/qemu-ifdown failed with status 256