On Sun, Jul 30, 2023 at 03:21:47PM +0900, YASUOKA Masahiko wrote:
> Hello,
> 
> I got new vaio last week, the machine seems to have the same graphic
> 
>   inteldrm0 at pci0 dev 2 function 0 "Intel Graphics" rev 0x04
>   drm0 at inteldrm0
>   inteldrm0: msi, ALDERLAKE_P, gen 12
> 
> and has the same problem.  I found having Option "PageFlip" "off" in
> /etc/X11/xorg.conf can workaround the problem.
> 
>   Section "Device"
>           Identifier      "Card0"
>           Driver          "modesetting"
>           BusID           "PCI:0:2:0"
>           Option          "PageFlip" "off"
>   EndSection

running GENERIC I got the following with xfce.

matches the trace in an earlier report from sthen@
https://marc.info/?l=openbsd-bugs&m=168234057913478&w=2

dpt_insert_entries+0xbc: movl 0x34(%r8),%r10d
r8      0xffff800001938fe0
r10     0x1000

   0xffffffff81ab0bc3 <+179>:   mov    %r8,%rcx
   0xffffffff81ab0bc6 <+182>:   add    $0x20,%rcx
   0xffffffff81ab0bca <+186>:   je     0xffffffff81ab0be8 
<dpt_insert_entries+216>
   0xffffffff81ab0bcc <+188>:   mov    0x34(%r8),%r10d
   0xffffffff81ab0bd0 <+192>:   test   %r10d,%r10d
   0xffffffff81ab0bd3 <+195>:   je     0xffffffff81ab0be8 
<dpt_insert_entries+216>

(gdb) info line *0xffffffff81ab0bcc
Line 34 of "/sys/dev/pci/drm/i915/i915_scatterlist.h"
   starts at address 0xffffffff81ab0bc1 <dpt_insert_entries+177>
   and ends at 0xffffffff81ab0bd5 <dpt_insert_entries+197>.

        if (dma && s.sgp && sg_dma_len(s.sgp) == 0) {

dpt_insert_entries+0xbc
dpt_bind_vma+0x64
i915_vma_bind+0x317
i915_vma_pin_ww+0x44b
intel_plane_pin_fb+0x25c
intel_prepare_plane_pin_fb+0x12c
drm_atomic_helper_prepare_planes+0x5b
intel_atomic_commit+0xda
drm_atomic_helper_page_flip+0x77
drm_mode_page_flip_ioctl+0x466
drm_do_ioctl+0x285
drmioctl+0xdc
VOP_IOCTL+0x57
vn_ioctl+0x6c

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