DRM related panic 13-STABLE

Oleh Hushchenkov o.hushchenkov at gmail.com
Mon Feb 15 18:08:20 UTC 2021


This is a third panic after the update to 13-STABLE and corresponding
drm-fbsd13-kmod-5.4.92.g20210202 port.
My hardware is ThinkPad T440p with Intel Haswell iGPU. It happens once
in a week or two.

Unread portion of the kernel message buffer:
<4>WARN_ON(atomic_read(&new->bits) &
frontbuffer_bits)WARN_ON(!(atomic_read(&old->bits) &
frontbuffer_bits))


Fatal trap 9: general protection fault while in kernel mode
cpuid = 3; apic id = 03
instruction pointer = 0x20:0xffffffff8376bb7d
stack pointer        = 0x28:0xfffffe01116b9750
frame pointer        = 0x28:0xfffffe01116b9760
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 1224 (MainThread)
trap number = 9
WARNING !drm_modeset_is_locked(&crtc->mutex) failed at
/usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_atomic_helper.c:621
#0 0xffffffff80e3e243 at linux_dump_stack+0x23
#1 0xffffffff8385a3c3 at drm_atomic_helper_check_modeset+0xb3
#2 0xffffffff8374ebcd at intel_atomic_check+0x8d
#3 0xffffffff83859360 at drm_atomic_check_only+0x400
#4 0xffffffff83859793 at drm_atomic_commit+0x13
#5 0xffffffff838668f8 at drm_client_modeset_commit_atomic+0x148
#6 0xffffffff83866621 at drm_client_modeset_commit_force+0x71
#7 0xffffffff838a9757 at drm_fb_helper_restore_fbdev_mode_unlocked+0x77
#8 0xffffffff838a3551 at vt_kms_postswitch+0x191
#9 0xffffffff80a6508b at vt_window_switch+0x12b
#10 0xffffffff80a6219f at vtterm_cngrab+0x4f
#11 0xffffffff80ba3be6 at cngrab+0x16
#12 0xffffffff80c091cc at vpanic+0xec
#13 0xffffffff80c090d3 at panic+0x43
#14 0xffffffff810891a7 at trap_fatal+0x387
#15 0xffffffff8108866e at trap+0x8e
#16 0xffffffff8105fd28 at calltrap+0x8
#17 0xffffffff8374be6a at intel_user_framebuffer_destroy+0x1a
WARNING !drm_modeset_is_locked(&crtc->mutex) failed at
/usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_atomic_helper.c:621
#0 0xffffffff80e3e243 at linux_dump_stack+0x23
#1 0xffffffff8385a3c3 at drm_atomic_helper_check_modeset+0xb3
#2 0xffffffff8374ebcd at intel_atomic_check+0x8d
#3 0xffffffff83859360 at drm_atomic_check_only+0x400
#4 0xffffffff83859793 at drm_atomic_commit+0x13
#5 0xffffffff838668f8 at drm_client_modeset_commit_atomic+0x148
#6 0xffffffff83866621 at drm_client_modeset_commit_force+0x71
#7 0xffffffff838a9757 at drm_fb_helper_restore_fbdev_mode_unlocked+0x77
#8 0xffffffff838a3551 at vt_kms_postswitch+0x191
#9 0xffffffff80a6508b at vt_window_switch+0x12b
#10 0xffffffff80a6219f at vtterm_cngrab+0x4f
#11 0xffffffff80ba3be6 at cngrab+0x16
#12 0xffffffff80c091cc at vpanic+0xec
#13 0xffffffff80c090d3 at panic+0x43
#14 0xffffffff810891a7 at trap_fatal+0x387
#15 0xffffffff8108866e at trap+0x8e
#16 0xffffffff8105fd28 at calltrap+0x8
#17 0xffffffff8374be6a at intel_user_framebuffer_destroy+0x1a
WARNING !drm_modeset_is_locked(&crtc->mutex) failed at
/usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_atomic_helper.c:621
#0 0xffffffff80e3e243 at linux_dump_stack+0x23
#1 0xffffffff8385a3c3 at drm_atomic_helper_check_modeset+0xb3
#2 0xffffffff8374ebcd at intel_atomic_check+0x8d
#3 0xffffffff83859360 at drm_atomic_check_only+0x400
#4 0xffffffff83859793 at drm_atomic_commit+0x13
#5 0xffffffff838668f8 at drm_client_modeset_commit_atomic+0x148
#6 0xffffffff83866621 at drm_client_modeset_commit_force+0x71
#7 0xffffffff838a9757 at drm_fb_helper_restore_fbdev_mode_unlocked+0x77
#8 0xffffffff838a3551 at vt_kms_postswitch+0x191
#9 0xffffffff80a6508b at vt_window_switch+0x12b
#10 0xffffffff80a6219f at vtterm_cngrab+0x4f
#11 0xffffffff80ba3be6 at cngrab+0x16
#12 0xffffffff80c091cc at vpanic+0xec
#13 0xffffffff80c090d3 at panic+0x43
#14 0xffffffff810891a7 at trap_fatal+0x387
#15 0xffffffff8108866e at trap+0x8e
#16 0xffffffff8105fd28 at calltrap+0x8
#17 0xffffffff8374be6a at intel_user_framebuffer_destroy+0x1a
WARNING !drm_modeset_is_locked(&dev->mode_config.connection_mutex)
failed at /usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_atomic_helper.c:666
#0 0xffffffff80e3e243 at linux_dump_stack+0x23
#1 0xffffffff8385a553 at drm_atomic_helper_check_modeset+0x243
#2 0xffffffff8374ebcd at intel_atomic_check+0x8d
#3 0xffffffff83859360 at drm_atomic_check_only+0x400
#4 0xffffffff83859793 at drm_atomic_commit+0x13
#5 0xffffffff838668f8 at drm_client_modeset_commit_atomic+0x148
#6 0xffffffff83866621 at drm_client_modeset_commit_force+0x71
#7 0xffffffff838a9757 at drm_fb_helper_restore_fbdev_mode_unlocked+0x77
#8 0xffffffff838a3551 at vt_kms_postswitch+0x191
#9 0xffffffff80a6508b at vt_window_switch+0x12b
#10 0xffffffff80a6219f at vtterm_cngrab+0x4f
#11 0xffffffff80ba3be6 at cngrab+0x16
#12 0xffffffff80c091cc at vpanic+0xec
#13 0xffffffff80c090d3 at panic+0x43
#14 0xffffffff810891a7 at trap_fatal+0x387
#15 0xffffffff8108866e at trap+0x8e
#16 0xffffffff8105fd28 at calltrap+0x8
#17 0xffffffff8374be6a at intel_user_framebuffer_destroy+0x1a
WARNING !drm_modeset_is_locked(&plane->mutex) failed at
/usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_atomic_helper.c:871
#0 0xffffffff80e3e243 at linux_dump_stack+0x23
#1 0xffffffff8385b620 at drm_atomic_helper_check_planes+0xb0
#2 0xffffffff8374fd8a at intel_atomic_check+0x124a
#3 0xffffffff83859360 at drm_atomic_check_only+0x400
#4 0xffffffff83859793 at drm_atomic_commit+0x13
#5 0xffffffff838668f8 at drm_client_modeset_commit_atomic+0x148
#6 0xffffffff83866621 at drm_client_modeset_commit_force+0x71
#7 0xffffffff838a9757 at drm_fb_helper_restore_fbdev_mode_unlocked+0x77
#8 0xffffffff838a3551 at vt_kms_postswitch+0x191
#9 0xffffffff80a6508b at vt_window_switch+0x12b
#10 0xffffffff80a6219f at vtterm_cngrab+0x4f
#11 0xffffffff80ba3be6 at cngrab+0x16
#12 0xffffffff80c091cc at vpanic+0xec
#13 0xffffffff80c090d3 at panic+0x43
#14 0xffffffff810891a7 at trap_fatal+0x387
#15 0xffffffff8108866e at trap+0x8e
#16 0xffffffff8105fd28 at calltrap+0x8
#17 0xffffffff8374be6a at intel_user_framebuffer_destroy+0x1a
WARNING !drm_modeset_is_locked(&plane->mutex) failed at
/usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_atomic_helper.c:871
#0 0xffffffff80e3e243 at linux_dump_stack+0x23
#1 0xffffffff8385b620 at drm_atomic_helper_check_planes+0xb0
#2 0xffffffff8374fd8a at intel_atomic_check+0x124a
#3 0xffffffff83859360 at drm_atomic_check_only+0x400
#4 0xffffffff83859793 at drm_atomic_commit+0x13
#5 0xffffffff838668f8 at drm_client_modeset_commit_atomic+0x148
#6 0xffffffff83866621 at drm_client_modeset_commit_force+0x71
#7 0xffffffff838a9757 at drm_fb_helper_restore_fbdev_mode_unlocked+0x77
#8 0xffffffff838a3551 at vt_kms_postswitch+0x191
#9 0xffffffff80a6508b at vt_window_switch+0x12b
#10 0xffffffff80a6219f at vtterm_cngrab+0x4f
#11 0xffffffff80ba3be6 at cngrab+0x16
#12 0xffffffff80c091cc at vpanic+0xec
#13 0xffffffff80c090d3 at panic+0x43
#14 0xffffffff810891a7 at trap_fatal+0x387
#15 0xffffffff8108866e at trap+0x8e
#16 0xffffffff8105fd28 at calltrap+0x8
#17 0xffffffff8374be6a at intel_user_framebuffer_destroy+0x1a
WARNING !drm_modeset_is_locked(&plane->mutex) failed at
/usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_atomic_helper.c:871
#0 0xffffffff80e3e243 at linux_dump_stack+0x23
#1 0xffffffff8385b620 at drm_atomic_helper_check_planes+0xb0
#2 0xffffffff8374fd8a at intel_atomic_check+0x124a
#3 0xffffffff83859360 at drm_atomic_check_only+0x400
#4 0xffffffff83859793 at drm_atomic_commit+0x13
#5 0xffffffff838668f8 at drm_client_modeset_commit_atomic+0x148
#6 0xffffffff83866621 at drm_client_modeset_commit_force+0x71
#7 0xffffffff838a9757 at drm_fb_helper_restore_fbdev_mode_unlocked+0x77
#8 0xffffffff838a3551 at vt_kms_postswitch+0x191
#9 0xffffffff80a6508b at vt_window_switch+0x12b
#10 0xffffffff80a6219f at vtterm_cngrab+0x4f
#11 0xffffffff80ba3be6 at cngrab+0x16
#12 0xffffffff80c091cc at vpanic+0xec
#13 0xffffffff80c090d3 at panic+0x43
#14 0xffffffff810891a7 at trap_fatal+0x387
#15 0xffffffff8108866e at trap+0x8e
#16 0xffffffff8105fd28 at calltrap+0x8
#17 0xffffffff8374be6a at intel_user_framebuffer_destroy+0x1a
WARNING !drm_modeset_is_locked(&plane->mutex) failed at
/usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_atomic_helper.c:871
#0 0xffffffff80e3e243 at linux_dump_stack+0x23
#1 0xffffffff8385b620 at drm_atomic_helper_check_planes+0xb0
#2 0xffffffff8374fd8a at intel_atomic_check+0x124a
#3 0xffffffff83859360 at drm_atomic_check_only+0x400
#4 0xffffffff83859793 at drm_atomic_commit+0x13
#5 0xffffffff838668f8 at drm_client_modeset_commit_atomic+0x148
#6 0xffffffff83866621 at drm_client_modeset_commit_force+0x71
#7 0xffffffff838a9757 at drm_fb_helper_restore_fbdev_mode_unlocked+0x77
#8 0xffffffff838a3551 at vt_kms_postswitch+0x191
#9 0xffffffff80a6508b at vt_window_switch+0x12b
#10 0xffffffff80a6219f at vtterm_cngrab+0x4f
#11 0xffffffff80ba3be6 at cngrab+0x16
#12 0xffffffff80c091cc at vpanic+0xec
#13 0xffffffff80c090d3 at panic+0x43
#14 0xffffffff810891a7 at trap_fatal+0x387
#15 0xffffffff8108866e at trap+0x8e
#16 0xffffffff8105fd28 at calltrap+0x8
#17 0xffffffff8374be6a at intel_user_framebuffer_destroy+0x1a
WARNING !drm_modeset_is_locked(&plane->mutex) failed at
/usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_atomic_helper.c:871
#0 0xffffffff80e3e243 at linux_dump_stack+0x23
#1 0xffffffff8385b620 at drm_atomic_helper_check_planes+0xb0
#2 0xffffffff8374fd8a at intel_atomic_check+0x124a
#3 0xffffffff83859360 at drm_atomic_check_only+0x400
#4 0xffffffff83859793 at drm_atomic_commit+0x13
#5 0xffffffff838668f8 at drm_client_modeset_commit_atomic+0x148
#6 0xffffffff83866621 at drm_client_modeset_commit_force+0x71
#7 0xffffffff838a9757 at drm_fb_helper_restore_fbdev_mode_unlocked+0x77
#8 0xffffffff838a3551 at vt_kms_postswitch+0x191
#9 0xffffffff80a6508b at vt_window_switch+0x12b
#10 0xffffffff80a6219f at vtterm_cngrab+0x4f
#11 0xffffffff80ba3be6 at cngrab+0x16
#12 0xffffffff80c091cc at vpanic+0xec
#13 0xffffffff80c090d3 at panic+0x43
#14 0xffffffff810891a7 at trap_fatal+0x387
#15 0xffffffff8108866e at trap+0x8e
#16 0xffffffff8105fd28 at calltrap+0x8
#17 0xffffffff8374be6a at intel_user_framebuffer_destroy+0x1a
WARNING !drm_modeset_is_locked(&plane->mutex) failed at
/usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_atomic_helper.c:871
#0 0xffffffff80e3e243 at linux_dump_stack+0x23
#1 0xffffffff8385b620 at drm_atomic_helper_check_planes+0xb0
#2 0xffffffff8374fd8a at intel_atomic_check+0x124a
#3 0xffffffff83859360 at drm_atomic_check_only+0x400
#4 0xffffffff83859793 at drm_atomic_commit+0x13
#5 0xffffffff838668f8 at drm_client_modeset_commit_atomic+0x148
#6 0xffffffff83866621 at drm_client_modeset_commit_force+0x71
#7 0xffffffff838a9757 at drm_fb_helper_restore_fbdev_mode_unlocked+0x77
#8 0xffffffff838a3551 at vt_kms_postswitch+0x191
#9 0xffffffff80a6508b at vt_window_switch+0x12b
#10 0xffffffff80a6219f at vtterm_cngrab+0x4f
#11 0xffffffff80ba3be6 at cngrab+0x16
#12 0xffffffff80c091cc at vpanic+0xec
#13 0xffffffff80c090d3 at panic+0x43
#14 0xffffffff810891a7 at trap_fatal+0x387
#15 0xffffffff8108866e at trap+0x8e
#16 0xffffffff8105fd28 at calltrap+0x8
#17 0xffffffff8374be6a at intel_user_framebuffer_destroy+0x1a
WARNING !drm_modeset_is_locked(&plane->mutex) failed at
/usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_atomic_helper.c:871
#0 0xffffffff80e3e243 at linux_dump_stack+0x23
#1 0xffffffff8385b620 at drm_atomic_helper_check_planes+0xb0
#2 0xffffffff8374fd8a at intel_atomic_check+0x124a
#3 0xffffffff83859360 at drm_atomic_check_only+0x400
#4 0xffffffff83859793 at drm_atomic_commit+0x13
#5 0xffffffff838668f8 at drm_client_modeset_commit_atomic+0x148
#6 0xffffffff83866621 at drm_client_modeset_commit_force+0x71
#7 0xffffffff838a9757 at drm_fb_helper_restore_fbdev_mode_unlocked+0x77
#8 0xffffffff838a3551 at vt_kms_postswitch+0x191
#9 0xffffffff80a6508b at vt_window_switch+0x12b
#10 0xffffffff80a6219f at vtterm_cngrab+0x4f
#11 0xffffffff80ba3be6 at cngrab+0x16
#12 0xffffffff80c091cc at vpanic+0xec
#13 0xffffffff80c090d3 at panic+0x43
#14 0xffffffff810891a7 at trap_fatal+0x387
#15 0xffffffff8108866e at trap+0x8e
#16 0xffffffff8105fd28 at calltrap+0x8
#17 0xffffffff8374be6a at intel_user_framebuffer_destroy+0x1a
WARNING !drm_modeset_is_locked(&plane->mutex) failed at
/usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_atomic_helper.c:871
#0 0xffffffff80e3e243 at linux_dump_stack+0x23
#1 0xffffffff8385b620 at drm_atomic_helper_check_planes+0xb0
#2 0xffffffff8374fd8a at intel_atomic_check+0x124a
#3 0xffffffff83859360 at drm_atomic_check_only+0x400
#4 0xffffffff83859793 at drm_atomic_commit+0x13
#5 0xffffffff838668f8 at drm_client_modeset_commit_atomic+0x148
#6 0xffffffff83866621 at drm_client_modeset_commit_force+0x71
#7 0xffffffff838a9757 at drm_fb_helper_restore_fbdev_mode_unlocked+0x77
#8 0xffffffff838a3551 at vt_kms_postswitch+0x191
#9 0xffffffff80a6508b at vt_window_switch+0x12b
#10 0xffffffff80a6219f at vtterm_cngrab+0x4f
#11 0xffffffff80ba3be6 at cngrab+0x16
#12 0xffffffff80c091cc at vpanic+0xec
#13 0xffffffff80c090d3 at panic+0x43
#14 0xffffffff810891a7 at trap_fatal+0x387
#15 0xffffffff8108866e at trap+0x8e
#16 0xffffffff8105fd28 at calltrap+0x8
#17 0xffffffff8374be6a at intel_user_framebuffer_destroy+0x1a
WARNING !drm_modeset_is_locked(&plane->mutex) failed at
/usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_atomic_helper.c:871
#0 0xffffffff80e3e243 at linux_dump_stack+0x23
#1 0xffffffff8385b620 at drm_atomic_helper_check_planes+0xb0
#2 0xffffffff8374fd8a at intel_atomic_check+0x124a
#3 0xffffffff83859360 at drm_atomic_check_only+0x400
#4 0xffffffff83859793 at drm_atomic_commit+0x13
#5 0xffffffff838668f8 at drm_client_modeset_commit_atomic+0x148
#6 0xffffffff83866621 at drm_client_modeset_commit_force+0x71
#7 0xffffffff838a9757 at drm_fb_helper_restore_fbdev_mode_unlocked+0x77
#8 0xffffffff838a3551 at vt_kms_postswitch+0x191
#9 0xffffffff80a6508b at vt_window_switch+0x12b
#10 0xffffffff80a6219f at vtterm_cngrab+0x4f
#11 0xffffffff80ba3be6 at cngrab+0x16
#12 0xffffffff80c091cc at vpanic+0xec
#13 0xffffffff80c090d3 at panic+0x43
#14 0xffffffff810891a7 at trap_fatal+0x387
#15 0xffffffff8108866e at trap+0x8e
#16 0xffffffff8105fd28 at calltrap+0x8
#17 0xffffffff8374be6a at intel_user_framebuffer_destroy+0x1a
<4>WARN_ON(!mutex_is_locked(&dev->struct_mutex))

<4>WARN_ON(!mutex_is_locked(&fbc->lock))WARN_ON(!mutex_is_locked(&fbc->lock))WARN_ON(!mutex_is_locked(&fbc->lock))
panic: general protection fault
cpuid = 3
time = 1613408682
KDB: stack backtrace:
#0 0xffffffff80c56695 at kdb_backtrace+0x65
#1 0xffffffff80c09261 at vpanic+0x181
#2 0xffffffff80c090d3 at panic+0x43
#3 0xffffffff810891a7 at trap_fatal+0x387
#4 0xffffffff8108866e at trap+0x8e
#5 0xffffffff8105fd28 at calltrap+0x8
#6 0xffffffff8374be6a at intel_user_framebuffer_destroy+0x1a
#7 0xffffffff83885461 at drm_mode_rmfb+0x211
#8 0xffffffff83888fcf at drm_ioctl_kernel+0x6f
#9 0xffffffff83889378 at drm_ioctl+0x2c8
#10 0xffffffff80e3ba93 at linux_file_ioctl+0x2e3
#11 0xffffffff80c7603d at kern_ioctl+0x26d
#12 0xffffffff80c75d36 at sys_ioctl+0xf6
#13 0xffffffff81089aac at amd64_syscall+0x10c
#14 0xffffffff8106064e at fast_syscall_common+0xf8
Uptime: 1h9m53s
Dumping 1454 out of 16241 MB:..2%..12%..21%..31%..41%..51%..61%..71%..81%..91%

__curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55
55 __asm("movq %%gs:%P1,%0" : "=r" (td) : "n" (offsetof(struct pcpu,
(kgdb) #0  __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55
#1  doadump (textdump=<optimized out>)
    at /usr/src/sys/kern/kern_shutdown.c:399
#2  0xffffffff80c08e56 in kern_reboot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:486
#3  0xffffffff80c092d0 in vpanic (fmt=<optimized out>, ap=<optimized out>)
    at /usr/src/sys/kern/kern_shutdown.c:919
#4  0xffffffff80c090d3 in panic (fmt=<unavailable>)
    at /usr/src/sys/kern/kern_shutdown.c:843
#5  0xffffffff810891a7 in trap_fatal (frame=0xfffffe01116b9690, eva=0)
    at /usr/src/sys/amd64/amd64/trap.c:915
#6  0xffffffff8108866e in trap (frame=0xfffffe01116b9690)
    at /usr/src/sys/amd64/amd64/trap.c:212
#7  <signal handler called>
#8  0xffffffff8376bb7d in intel_frontbuffer_put (front=0xfffff80190dba900)
    at /usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/i915/display/intel_frontbuffer.c:273
#9  0xffffffff8374be6a in intel_user_framebuffer_destroy (
    fb=0xfffff80138126900)
    at /usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/i915/display/intel_display.c:15574
#10 0xffffffff83885461 in drm_framebuffer_put (fb=<optimized out>)
    at /usr/local/sys/modules/drm-fbsd13-kmod/include/drm/drm_framebuffer.h:248
#11 drm_mode_rmfb (dev=<optimized out>, fb_id=<optimized out>,
    file_priv=<optimized out>)
    at /usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_framebuffer.c:479
#12 0xffffffff83888fcf in drm_ioctl_kernel (
    linux_file=linux_file at entry=0xfffff8017e6f9180,
    func=func at entry=0xffffffff83885530 <drm_mode_rmfb_ioctl>,
    kdata=kdata at entry=0xfffffe01116b9880, flags=0)
    at /usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_ioctl.c:806
#13 0xffffffff83889378 in drm_ioctl (filp=0xfffff8017e6f9180,
    cmd=<optimized out>, arg=<optimized out>)
    at /usr/local/sys/modules/drm-fbsd13-kmod/drivers/gpu/drm/drm_ioctl.c:913
#14 0xffffffff80e3ba93 in linux_file_ioctl_sub (fp=<optimized out>,
    filp=0xfffff8017e6f9180, fop=<optimized out>, cmd=<optimized out>,
    data=<optimized out>, td=<optimized out>)
    at /usr/src/sys/compat/linuxkpi/common/src/linux_compat.c:958
#15 linux_file_ioctl (fp=<optimized out>, cmd=<optimized out>,
    data=<optimized out>, cred=<optimized out>, td=0xfffffe0113956800)
    at /usr/src/sys/compat/linuxkpi/common/src/linux_compat.c:1578
#16 0xffffffff80c7603d in fo_ioctl (fp=0xfffff8000ab1b780, com=3221513391,
    data=0x1, active_cred=0x1, td=0xfffffe0113956800)
    at /usr/src/sys/sys/file.h:354
#17 kern_ioctl (td=0xfffff80028ae3600, fd=<optimized out>,
    com=com at entry=3221513391,
    data=0x1 <error: Cannot access memory at address 0x1>,
    data at entry=0xfffffe01116b9a10 "`") at /usr/src/sys/kern/sys_generic.c:803
#18 0xffffffff80c75d36 in sys_ioctl (td=<optimized out>,
    uap=0xfffffe0113956be8) at /usr/src/sys/kern/sys_generic.c:711
#19 0xffffffff81089aac in syscallenter (td=0xfffffe0113956800)
    at /usr/src/sys/amd64/amd64/../../kern/subr_syscall.c:189
#20 amd64_syscall (td=0xfffffe0113956800, traced=0)
    at /usr/src/sys/amd64/amd64/trap.c:1156
#21 <signal handler called>
#22 0x0000000800a7386a in ?? ()
Backtrace stopped: Cannot access memory at address 0x7fffffffe558
(kgdb)


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