igt@vgem_basic@dmabuf-mmap - abort - INFO: task vgem_basic:.* blocked for more than 61 seconds.

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_1327/bat-adln-1/igt@vgem_basic@dmabuf-mmap.html#dmesg-warnings41

<7> [52.554254] i915 0000:00:02.0: [drm:intel_tc_port_update_mode [i915]] Port D/TC#1: TC port mode reset (tbt-alt -> disconnected)
<7> [52.554256] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling AUX_USBC2
<7> [52.554722] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling AUX_USBC1
<7> [52.555157] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling PW_2
<7> [54.535773] i915 0000:00:02.0: [drm:intel_pps_vdd_off_sync_unlocked [i915]] [ENCODER:184:DDI A/PHY A] PPS 0 turning VDD off
<7> [54.536389] i915 0000:00:02.0: [drm:intel_pps_vdd_off_sync_unlocked [i915]] [ENCODER:184:DDI A/PHY A] PPS 0 PP_STATUS: 0x80000008 PP_CONTROL: 0x00000067
<7> [54.536845] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling DC_off
<7> [54.537298] i915 0000:00:02.0: [drm:skl_enable_dc6 [i915]] Enabling DC6
<7> [54.537734] i915 0000:00:02.0: [drm:gen9_set_dc_state.part.0 [i915]] Setting DC state from 00 to 02
<3> [124.167751] INFO: task vgem_basic:900 blocked for more than 61 seconds.
<3> [124.167780]       Tainted: G        W          6.2.0-drmtip_1327-gf182ba6684a2+ #1
<3> [124.167793] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
<6> [124.167804] task:vgem_basic      state:D stack:12928 pid:900   ppid:893    flags:0x00000000
<6> [124.167825] Call Trace:
<6> [124.167832]  <TASK>
<6> [124.167839]  __schedule+0x38b/0xc20
<6> [124.167856]  ? rcu_read_lock_held_common+0x9/0x50
<6> [124.167872]  schedule+0x5c/0xd0
<6> [124.167880]  schedule_preempt_disabled+0x13/0x30
<6> [124.167890]  __ww_mutex_lock.constprop.0+0x9bc/0x1680
<6> [124.167906]  ? drm_gem_shmem_mmap+0x74/0xf0 [drm_shmem_helper]
<6> [124.167927]  ? ww_mutex_lock+0x37/0x100
<6> [124.167938]  ww_mutex_lock+0x37/0x100
<6> [124.167948]  drm_gem_shmem_mmap+0x74/0xf0 [drm_shmem_helper]
<6> [124.167967]  drm_gem_prime_mmap+0x6e/0x1c0
<6> [124.167983]  dma_buf_mmap_internal+0x60/0xa0
<6> [124.167995]  mmap_region+0x252/0xc30
<6> [124.168010]  ? arch_get_unmapped_area_topdown+0x11b/0x1d0
<6> [124.168028]  do_mmap+0x359/0x600
<6> [124.168041]  vm_mmap_pgoff+0xa2/0x150
<6> [124.168055]  ksys_mmap_pgoff+0x166/0x1b0
<6> [124.168067]  do_syscall_64+0x3c/0x90
<6> [124.168078]  entry_SYSCALL_64_after_hwframe+0x72/0xdc
<6> [124.168093] RIP: 0033:0x7fe9e09c78e6
<6> [124.168102] RSP: 002b:00007ffdb93b9fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
<6> [124.168117] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fe9e09c78e6
<6> [124.168129] RDX: 0000000000000002 RSI: 0000000000400000 RDI: 0000000000000000
<6> [124.168140] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000000
<6> [124.168151] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000006
<6> [124.168162] R13: 00007ffdb93ba820 R14: 0000000000000000 R15: 0000000000000000
<6> [124.168177]  </TASK>
<4> [124.168182] INFO: lockdep is turned off.
<3> [185.607633] INFO: task vgem_basic:900 blocked for more than 122 seconds.
<3> [185.607664]       Tainted: G        W          6.2.0-drmtip_1327-gf182ba6684a2+ #1
<3> [185.607677] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
<6> [185.607689] task:vgem_basic      state:D stack:12928 pid:900   ppid:893    flags:0x00000004
<6> [185.607714] Call Trace:
<6> [185.607720]  <TASK>
<6> [185.607728]  __schedule+0x38b/0xc20
<6> [185.607750]  ? rcu_read_lock_held_common+0x9/0x50
<6> [185.607765]  schedule+0x5c/0xd0