[Bug 104773] New: GPF in i915 call to gen8_ppgtt_alloc_pdp causes laptop to hang

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Jan 24 19:56:26 UTC 2018 

https://bugs.freedesktop.org/show_bug.cgi?id=104773

            Bug ID: 104773
           Summary: GPF in i915 call to gen8_ppgtt_alloc_pdp causes laptop
                    to hang
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: eblau at eblau.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

System Architecture: x86_64
Kernel Version:      4.14.13-1-ARCH
Linux Distribution:  Arch Linux
Machine:             MacBook Pro 12,1
Display Connector:   Thunderbolt to DisplayPort

I was working on my laptop this morning, doing nothing special in particular,
when my laptop hung and became unresponsive. It would not respond to mouse or
keypresses and required a hard power cycle. The exact trigger was clicking a
tab in Chromium to switch tabs. Checking journalctl, I see the following
general protection fault in i915:

Jan 24 10:32:48 eric-macbookpro kernel: general protection fault: 0000 [#1]
PREEMPT SMP PTI
Jan 24 10:32:48 eric-macbookpro kernel: Modules linked in: brcmfmac brcmutil
cfg80211 mmc_core facetimehd(O) videobuf2_dma_sg videobuf2_memops
videobuf2_v4l2 videobuf2_core videodev media asix usbnet mii libphy tun rfcomm
ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user
xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype
iptable_filter xt_conntrack nf_nat nf_conntrack fuse libcrc32c crc32c_generic
br_netfilter bridge stp llc cmac bnep nls_iso8859_1 nls_cp437 vfat fat uas msr
iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi joydev thunderbolt
snd_hda_codec_cirrus snd_hda_codec_generic sch_fq_codel sg crypto_user applesmc
input_polldev intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp
kvm_intel i915 kvm irqbypass intel_cstate intel_rapl_perf pcspkr btusb btrtl
btbcm
Jan 24 10:32:48 eric-macbookpro kernel:  btintel bluetooth i2c_algo_bit
intel_pch_thermal drm_kms_helper bcm5974 snd_hda_intel drm snd_hda_codec
ecdh_generic intel_gtt evdev mousedev input_leds rfkill agpgart led_class
snd_hda_core crc16 mei_me snd_hwdep syscopyarea mac_hid snd_pcm i2c_i801
sysfillrect lpc_ich sysimgblt mei snd_timer shpchp snd spi_pxa2xx_pci
fb_sys_fops soundcore battery video acpi_als kfifo_buf sbs industrialio sbshc
spi_pxa2xx_platform apple_bl ac button ip_tables x_tables zfs(PO) zunicode(PO)
zavl(PO) icp(PO) zcommon(PO) znvpair(PO) spl(O) algif_skcipher af_alg hid_apple
hid_generic usbhid hid dm_crypt dm_mod sd_mod usb_storage crct10dif_pclmul
crc32_pclmul crc32c_intel ghash_clmulni_intel pcbc ahci aesni_intel libahci
aes_x86_64 crypto_simd glue_helper cryptd libata xhci_pci scsi_mod xhci_hcd
usbcore usb_common
Jan 24 10:32:48 eric-macbookpro kernel:  [last unloaded: brcmutil]
Jan 24 10:32:48 eric-macbookpro kernel: CPU: 0 PID: 7374 Comm: chromium
Tainted: P           O    4.14.13-1-ARCH #1
Jan 24 10:32:48 eric-macbookpro kernel: Hardware name: Apple Inc.
MacBookPro12,1/Mac-E43C1C25D4880AD6, BIOS MBP121.88Z.0167.B33.1706181928
06/18/2017
Jan 24 10:32:48 eric-macbookpro kernel: task: ffff994f696c2c40 task.stack:
ffffb1a789d4c000
Jan 24 10:32:48 eric-macbookpro kernel: RIP:
0010:gen8_ppgtt_set_pde.isra.40+0x48/0x70 [i915]
Jan 24 10:32:48 eric-macbookpro kernel: RSP: 0018:ffffb1a789d4f940 EFLAGS:
00010206
Jan 24 10:32:48 eric-macbookpro kernel: RAX: 81c1788cc4f68138 RBX:
ffff994f54db8000 RCX: ffff994f696c2c40
Jan 24 10:32:48 eric-macbookpro kernel: RDX: 000000023bc73003 RSI:
ffff994d598b6b80 RDI: ffff994f54db8000
Jan 24 10:32:48 eric-macbookpro kernel: RBP: ffff994d598b6b80 R08:
0000000000000000 R09: 0000000000000000
Jan 24 10:32:48 eric-macbookpro kernel: R10: ffffb1a789d4f550 R11:
ffff994eaf3c3208 R12: 0000000000000027
Jan 24 10:32:48 eric-macbookpro kernel: R13: 0000000000005000 R14:
0000000004e8f000 R15: ffff994f54dba000
Jan 24 10:32:48 eric-macbookpro kernel: FS:  00007f585886aa00(0000)
GS:ffff994faec00000(0000) knlGS:0000000000000000
Jan 24 10:32:48 eric-macbookpro kernel: CS:  0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Jan 24 10:32:48 eric-macbookpro kernel: CR2: 00000000004ac8e8 CR3:
00000002552c8004 CR4: 00000000003606f0
Jan 24 10:32:48 eric-macbookpro kernel: Call Trace:
Jan 24 10:32:48 eric-macbookpro kernel:  gen8_ppgtt_alloc_pdp+0x178/0x320
[i915]
Jan 24 10:32:48 eric-macbookpro kernel:  gen8_ppgtt_alloc_4lvl+0x5f/0x150
[i915]
Jan 24 10:32:48 eric-macbookpro kernel:  ppgtt_bind_vma+0x30/0x70 [i915]
Jan 24 10:32:48 eric-macbookpro kernel:  i915_vma_bind+0x68/0xd0 [i915]
Jan 24 10:32:48 eric-macbookpro kernel:  __i915_vma_do_pin+0x2d6/0x3a0 [i915]
Jan 24 10:32:48 eric-macbookpro kernel:  eb_lookup_vmas+0x7a2/0xb50 [i915]
Jan 24 10:32:48 eric-macbookpro kernel:  i915_gem_do_execbuffer+0x4d7/0x10e0
[i915]
Jan 24 10:32:48 eric-macbookpro kernel:  ? sock_wfree+0x34/0x60
Jan 24 10:32:48 eric-macbookpro kernel:  ? unix_stream_read_generic+0x1f9/0x7e0
Jan 24 10:32:48 eric-macbookpro kernel:  ? import_iovec+0x37/0xd0
Jan 24 10:32:48 eric-macbookpro kernel:  ? i915_gem_execbuffer2+0x5d/0x390
[i915]
Jan 24 10:32:48 eric-macbookpro kernel:  i915_gem_execbuffer2+0x1b7/0x390
[i915]
Jan 24 10:32:48 eric-macbookpro kernel:  ? i915_gem_execbuffer+0x2d0/0x2d0
[i915]
Jan 24 10:32:48 eric-macbookpro kernel:  drm_ioctl_kernel+0x59/0xb0 [drm]
Jan 24 10:32:48 eric-macbookpro kernel:  drm_ioctl+0x2d5/0x370 [drm]
Jan 24 10:32:48 eric-macbookpro kernel:  ? i915_gem_execbuffer+0x2d0/0x2d0
[i915]
Jan 24 10:32:48 eric-macbookpro kernel:  ? __seccomp_filter+0x3b/0x260
Jan 24 10:32:48 eric-macbookpro kernel:  do_vfs_ioctl+0xa1/0x610
Jan 24 10:32:48 eric-macbookpro kernel:  ? syscall_trace_enter+0xdb/0x2b0
Jan 24 10:32:48 eric-macbookpro kernel:  SyS_ioctl+0x74/0x80
Jan 24 10:32:48 eric-macbookpro kernel:  do_syscall_64+0x55/0x110
Jan 24 10:32:48 eric-macbookpro kernel:  entry_SYSCALL64_slow_path+0x25/0x25
Jan 24 10:32:48 eric-macbookpro kernel: RIP: 0033:0x7f584fa82d27
Jan 24 10:32:48 eric-macbookpro kernel: RSP: 002b:00007ffee14a7828 EFLAGS:
00000246 ORIG_RAX: 0000000000000010
Jan 24 10:32:48 eric-macbookpro kernel: RAX: ffffffffffffffda RBX:
000003b0126a1030 RCX: 00007f584fa82d27
Jan 24 10:32:48 eric-macbookpro kernel: RDX: 00007ffee14a7870 RSI:
0000000040406469 RDI: 0000000000000080
Jan 24 10:32:48 eric-macbookpro kernel: RBP: 00007ffee14a7870 R08:
0000000000000002 R09: 0000000000000077
Jan 24 10:32:48 eric-macbookpro kernel: R10: 00007f5839f2b780 R11:
0000000000000246 R12: 0000000040406469
Jan 24 10:32:48 eric-macbookpro kernel: R13: 0000000000000080 R14:
00007f5842b00040 R15: 0000000000000000
Jan 24 10:32:48 eric-macbookpro kernel: Code: 01 00 83 81 58 0a 00 00 01 48 2b
05 13 9d fd c9 48 c1 f8 06 48 c1 e0 0c 48 8d 04 d0 48 8b 56 08 48 03 05 0c 9d
fd c9 48 83 ca 03 <48> 89 10 83 a9 58 0a 00 00 01 65 ff 0d 37 03 fb 3e 74 02 f3
c3 
Jan 24 10:32:48 eric-macbookpro kernel: RIP:
gen8_ppgtt_set_pde.isra.40+0x48/0x70 [i915] RSP: ffffb1a789d4f940
Jan 24 10:32:48 eric-macbookpro kernel: ---[ end trace 927b3fb3beeae4b1 ]---


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