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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [KVM][GVT-d] [BDW & SKL ]Ubuntu 16.04 guest boot up with GPU Hang with drm-intel kernel"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99028#c23">Comment # 23</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - [KVM][GVT-d] [BDW & SKL ]Ubuntu 16.04 guest boot up with GPU Hang with drm-intel kernel"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99028">bug 99028</a>
from <span class="vcard"><a class="email" href="mailto:xiong.y.zhang@intel.com" title="XiongZhang <xiong.y.zhang@intel.com>"> <span class="fn">XiongZhang</span></a>
</span></b>
<pre>Created <span class=""><a href="attachment.cgi?id=130820" name="attach_130820" title="/sys/class/drm/card0/error when gpu hang">attachment 130820</a> <a href="attachment.cgi?id=130820&action=edit" title="/sys/class/drm/card0/error when gpu hang">[details]</a></span>
/sys/class/drm/card0/error when gpu hang
the error message:
[ 9.853024] [drm] GPU HANG: ecode 9:1:0xeeffefa9, in Xorg [871], reason: No
progress on blitter ring, action: reset
[ 9.853027] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[ 9.853028] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[ 9.853030] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[ 9.853031] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[ 9.853032] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[ 9.853223] [drm:i915_reset_and_wakeup [i915]] resetting chip
[ 16.896147] drm/i915: Resetting chip after gpu hang
[ 16.898713] [drm:i915_gem_reset [i915]] context Xorg[871]/0 marked guilty
(score 10) banned? no
[ 16.898756] [drm:i915_gem_reset [i915]] resetting blitter ring to restart
from tail of request 0x1
[ 16.898764] BUG: unable to handle kernel NULL pointer dereference at
0000000000000070
[ 16.901051] IP: reset_common_ring+0x8b/0x120 [i915]
[ 16.902392] PGD 0
[ 16.903508] Oops: 0000 [#1] SMP
[ 16.904262] Modules linked in: crct10dif_pclmul crc32_pclmul
ghash_clmulni_intel pcbc aesni_intel aes_x86_64 crypto_simd glue_helper cryptd
joydev input_leds serio_raw i2c_piix4 qemu_fw_cfg mac_hid parport_pc ppdev lp
parport ip_tables x_tables autofs4 hid_generic usbhid hid i915(OE) video
i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm
e1000 floppy psmouse pata_acpi
[ 16.907024] CPU: 1 PID: 257 Comm: kworker/1:3 Tainted: G OE
4.11.0-rc3nightly+ #2
[ 16.907710] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.10.1-0-g8891697-prebuilt.qemu-project.org 04/01/2014
[ 16.908587] Workqueue: events_long i915_hangcheck_elapsed [i915]
[ 16.909124] task: ffff89e25e6dcb00 task.stack: ffffa6d2807e4000
[ 16.909582] RIP: 0010:reset_common_ring+0x8b/0x120 [i915]
[ 16.910081] RSP: 0018:ffffa6d2807e7b60 EFLAGS: 00010206
[ 16.910474] RAX: 0000000000003f00 RBX: ffff89e2bbd1f680 RCX:
ffff89e2777539f4
[ 16.911098] RDX: 0000000000003f40 RSI: ffff89e25d92e000 RDI:
ffff89e2777539c0
[ 16.911656] RBP: ffffa6d2807e7b78 R08: 0000000000000001 R09:
0000000000000001
[ 16.912202] R10: 00000000ffffffff R11: 0000000000000448 R12:
ffff89e25df56000
[ 16.912749] R13: 0000000000000000 R14: ffff89e2bbd1f680 R15:
ffff89e25dba4d38
[ 16.913250] FS: 0000000000000000(0000) GS:ffff89e2bfd00000(0000)
knlGS:0000000000000000
[ 16.913864] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 16.914322] CR2: 0000000000000070 CR3: 00000000434a0000 CR4:
00000000003406e0
[ 16.914922] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[ 16.915520] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[ 16.916097] Call Trace:
[ 16.916324] i915_gem_reset+0xbe/0x380 [i915]
[ 16.916679] ? intel_uncore_forcewake_put+0x48/0x60 [i915]
[ 16.917111] ? bit_wait_io+0x60/0x60
[ 16.917374] i915_reset+0xde/0x170 [i915]
[ 16.917754] i915_reset_and_wakeup+0x17c/0x190 [i915]
[ 16.918164] i915_handle_error+0x1db/0x220 [i915]
[ 16.918536] ? scnprintf+0x4d/0x90
[ 16.918790] hangcheck_declare_hang+0xdb/0x100 [i915]
[ 16.919211] i915_hangcheck_elapsed+0x2a9/0x2d0 [i915]
[ 16.919613] process_one_work+0x1fc/0x4b0
[ 16.919937] worker_thread+0x4b/0x500
[ 16.920246] kthread+0x101/0x140
[ 16.920478] ? process_one_work+0x4b0/0x4b0
[ 16.920775] ? kthread_create_on_node+0x60/0x60
[ 16.921148] ret_from_fork+0x2c/0x40
[ 16.921450] Code: c8 01 00 00 89 50 14 48 8b 83 80 00 00 00 8b 93 c8 01 00
00 89 50 28 48 8b bb 80 00 00 00 e8 6d 2c 00 00 4d 8b ac 24 60 02 00 00 <49> 8b
45 70 48 39 43 70 74 5d 4d 85 ed 74 20 48 c7 c0 e0 70 61
[ 16.922917] RIP: reset_common_ring+0x8b/0x120 [i915] RSP: ffffa6d2807e7b60
[ 16.923488] CR2: 0000000000000070
[ 16.923762] ---[ end trace 2a911e958217bc24 ]---
error</pre>
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