GPF with kernel 4.15-rc1, and display locks up

[Mike Keehan]

Hi,

I am getting a General Protection Fault on 4.15-rc1, and the X11 screen
locks up.


Nov 27 10:16:37 babelfish kernel: Call Trace:
Nov 27 10:16:37 babelfish kernel:  ?
__i915_gem_object_flush_for_display+0x13/0x40 [i915]
Nov 27 10:16:37 babelfish kernel:
i915_gem_object_wait_priority+0xb2/0x170 [i915]
Nov 27 10:16:37 babelfish kernel:  intel_prepare_plane_fb+0x16e/0x2e0
[i915]
Nov 27 10:16:37 babelfish kernel:
drm_atomic_helper_prepare_planes+0x4c/0xd0
Nov 27 10:16:37 babelfish kernel:  intel_atomic_commit+0xa3/0x280 [i915]
Nov 27 10:16:37 babelfish kernel:  drm_atomic_helper_page_flip+0x7c/0x90
Nov 27 10:16:37 babelfish kernel:  drm_mode_page_flip_ioctl+0x4c2/0x530
Nov 27 10:16:37 babelfish kernel:  ? drm_mode_cursor2_ioctl+0x10/0x10
Nov 27 10:16:37 babelfish kernel:  drm_ioctl_kernel+0x59/0xb0
Nov 27 10:16:37 babelfish kernel:  drm_ioctl+0x2cb/0x380
Nov 27 10:16:37 babelfish kernel:  ? drm_mode_cursor2_ioctl+0x10/0x10
Nov 27 10:16:37 babelfish kernel:  ? vfs_writev+0xb9/0x110
Nov 27 10:16:37 babelfish kernel:  do_vfs_ioctl+0xa1/0x610
Nov 27 10:16:37 babelfish kernel:  SyS_ioctl+0x74/0x80
Nov 27 10:16:37 babelfish kernel:  entry_SYSCALL_64_fastpath+0x13/0x6c

I have attached the full GPF trace.

(Haven't tried to login with ssh yet.)

Mike.


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