[Bug 99295] [Regression BDW] kernel panic in Intel i915 module, complete system freeze in 4.10-rc2

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99295

--- Comment #29 from sitic <jan.lebert at online.de> ---
Had a crash with a kernel using the patch from comment 22. I'll compile it
again with CONFIG_DRM_I915_DEBUG_GEM=y.

Apr 17 16:06:17 desna kernel: BUG: unable to handle kernel NULL pointer
dereference at 0000000000000018
Apr 17 16:06:17 desna kernel: IP:
gen8_ppgtt_alloc_page_directories.isra.14+0x11f/0x270 [i915]
Apr 17 16:06:17 desna kernel: PGD 0 
Apr 17 16:06:17 desna kernel: 
Apr 17 16:06:17 desna kernel: Oops: 0002 [#1] PREEMPT SMP
Apr 17 16:06:17 desna kernel: Modules linked in: xfs libcrc32c crc32c_generic
nilfs2 jfs nls_utf8 isofs uas usb_storage hid_cherry hid_generic usbhid ctr ccm
rfcomm fuse bnep bbswitch(O) uvc
Apr 17 16:06:17 desna kernel:  snd_hda_ext_core i2c_i801 snd_soc_sst_match
i2c_hid thermal hid snd_soc_core i915 hci_uart snd_compress btbcm
snd_pcm_dmaengine btqca ac97_bus btintel ac snd_h
Apr 17 16:06:17 desna kernel:  xhci_pci libata xhci_hcd scsi_mod usbcore
usb_common i8042 serio crc32c_intel [last unloaded: nvidia]
Apr 17 16:06:17 desna kernel: CPU: 1 PID: 7214 Comm: chrome Tainted: P         
 O    4.10.10-1-SITIC #1
Apr 17 16:06:17 desna kernel: Hardware name: ASUSTeK COMPUTER INC.
UX410UQK/UX410UQK, BIOS UX410UQK.301 12/12/2016
Apr 17 16:06:17 desna kernel: task: ffff880264ec0ec0 task.stack:
ffffc90004758000
Apr 17 16:06:17 desna kernel: RIP:
0010:gen8_ppgtt_alloc_page_directories.isra.14+0x11f/0x270 [i915]
Apr 17 16:06:17 desna kernel: RSP: 0018:ffffc9000475b890 EFLAGS: 00010286
Apr 17 16:06:17 desna kernel: RAX: ffff880168cc6000 RBX: 0000000000008000 RCX:
0000000000000003
Apr 17 16:06:17 desna kernel: RDX: 0000000000000000 RSI: ffff88015b76a000 RDI:
ffff88025f328000
Apr 17 16:06:17 desna kernel: RBP: ffffc9000475b8e8 R08: 0000000000000000 R09:
0000000000000000
Apr 17 16:06:17 desna kernel: R10: 0000000000000000 R11: 0000000000000040 R12:
ffff880189f1e000
Apr 17 16:06:17 desna kernel: R13: ffff880164185330 R14: 0000000000000003 R15:
00000000fff98000
Apr 17 16:06:17 desna kernel: FS:  00007fcac4835a00(0000)
GS:ffff88026ec80000(0000) knlGS:0000000000000000
Apr 17 16:06:17 desna kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr 17 16:06:17 desna kernel: CR2: 0000000000000018 CR3: 0000000160942000 CR4:
00000000003406e0
Apr 17 16:06:17 desna kernel: Call Trace:
Apr 17 16:06:17 desna kernel:  gen8_alloc_va_range_3lvl+0xf7/0x9c0 [i915]
Apr 17 16:06:17 desna kernel:  gen8_alloc_va_range+0x256/0x490 [i915]
Apr 17 16:06:17 desna kernel:  i915_vma_bind+0xab/0x1a0 [i915]
Apr 17 16:06:17 desna kernel:  __i915_vma_do_pin+0x2a5/0x450 [i915]
Apr 17 16:06:17 desna kernel: 
i915_gem_execbuffer_reserve_vma.isra.8+0x144/0x1b0 [i915]
Apr 17 16:06:17 desna kernel:  i915_gem_execbuffer_reserve.isra.9+0x39e/0x3d0
[i915]
Apr 17 16:06:17 desna kernel:  i915_gem_do_execbuffer.isra.15+0x62e/0x1810
[i915]
Apr 17 16:06:17 desna kernel:  ? radix_tree_lookup_slot+0x22/0x50
Apr 17 16:06:17 desna kernel:  ? shmem_getpage_gfp+0xf9/0xc50
Apr 17 16:06:17 desna kernel:  i915_gem_execbuffer2+0xc5/0x240 [i915]
Apr 17 16:06:17 desna kernel:  drm_ioctl+0x21b/0x4c0 [drm]
Apr 17 16:06:17 desna kernel:  ? i915_gem_execbuffer+0x310/0x310 [i915]
Apr 17 16:06:17 desna kernel:  ? __seccomp_filter+0x67/0x2a0
Apr 17 16:06:17 desna kernel:  do_vfs_ioctl+0xa3/0x5f0
Apr 17 16:06:17 desna kernel:  ? __fget+0x77/0xb0
Apr 17 16:06:17 desna kernel:  SyS_ioctl+0x79/0x90
Apr 17 16:06:17 desna kernel:  do_syscall_64+0x54/0xc0
Apr 17 16:06:17 desna kernel:  entry_SYSCALL64_slow_path+0x25/0x25
Apr 17 16:06:17 desna kernel: RIP: 0033:0x7fcabdee50d7
Apr 17 16:06:17 desna kernel: RSP: 002b:00007fff64507e78 EFLAGS: 00000246
ORIG_RAX: 0000000000000010
Apr 17 16:06:17 desna kernel: RAX: ffffffffffffffda RBX: 00002d7a32579000 RCX:
00007fcabdee50d7
Apr 17 16:06:17 desna kernel: RDX: 00007fff64507ec0 RSI: 00000000c0406469 RDI:
000000000000000e
Apr 17 16:06:17 desna kernel: RBP: 00007fff64507ec0 R08: 0000000000000000 R09:
0000000000000000
Apr 17 16:06:17 desna kernel: R10: 0000000000000050 R11: 0000000000000246 R12:
00000000c0406469
Apr 17 16:06:17 desna kernel: R13: 000000000000000e R14: 0000000000000000 R15:
0000000000000000
Apr 17 16:06:17 desna kernel: Code: 49 8b bc 24 d8 02 00 00 48 89 c6 48 89 45
c0 48 8b 52 08 48 83 ca 03 e8 50 e0 ff ff 48 8b 45 b0 48 8b 4d c8 48 8b 10 48
8b 45 c0 <48> 89 04 ca 48 8b 45 d0
Apr 17 16:06:17 desna kernel: RIP:
gen8_ppgtt_alloc_page_directories.isra.14+0x11f/0x270 [i915] RSP:
ffffc9000475b890
Apr 17 16:06:17 desna kernel: CR2: 0000000000000018
Apr 17 16:06:17 desna kernel: ---[ end trace 5b3658c58f87d1cd ]---

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