------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Not tainted syzkaller #0 PREEMPT Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001baf x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff80008392921e x14: 0000000000000393 x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 0000000000000394 x7 : 0000000000000498 x6 : 0000000000000498 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001bf6 x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff800083929a16 x14: 00000000000003b2 x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 00000000000003b3 x7 : 00000000000004dd x6 : 00000000000004dd x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001bf6 x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff80008392a196 x14: 00000000000003d1 x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 00000000000003d2 x7 : 000000000000051e x6 : 000000000000051e x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001ca7 x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff80008392a916 x14: 00000000000003f0 x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 00000000000003f1 x7 : 000000000000055f x6 : 000000000000055f x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001ca7 x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff80008392b096 x14: 000000000000040f x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 0000000000000410 x7 : 00000000000005a0 x6 : 00000000000005a0 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001ca7 x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff80008392b816 x14: 000000000000042e x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 000000000000042f x7 : 00000000000005e1 x6 : 00000000000005e1 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001ca7 x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff80008392bf96 x14: 000000000000044d x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 000000000000044e x7 : 0000000000000622 x6 : 0000000000000622 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001ca7 x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff80008392c716 x14: 000000000000046c x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 000000000000046d x7 : 0000000000000663 x6 : 0000000000000663 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001e0e x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff80008392ce96 x14: 000000000000048b x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 000000000000048c x7 : 00000000000006a4 x6 : 00000000000006a4 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001e0e x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff80008392d616 x14: 00000000000004aa x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 00000000000004ab x7 : 00000000000006e5 x6 : 00000000000006e5 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001e0e x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff80008392dd96 x14: 00000000000004c9 x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 00000000000004ca x7 : 0000000000000726 x6 : 0000000000000726 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001e0e x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff80008392e516 x14: 00000000000004e8 x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 00000000000004e9 x7 : 0000000000000767 x6 : 0000000000000767 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001e0e x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff80008392ec96 x14: 0000000000000507 x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 0000000000000508 x7 : 00000000000007a8 x6 : 00000000000007a8 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001e0e x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff80008392f416 x14: 0000000000000526 x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 0000000000000527 x7 : 00000000000007e9 x6 : 00000000000007e9 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001e0e x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff80008392fb96 x14: 0000000000000545 x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 0000000000000546 x7 : 000000000000082a x6 : 000000000000082a x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001e0e x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff800083930316 x14: 0000000000000564 x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 0000000000000565 x7 : 000000000000086b x6 : 000000000000086b x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001e0e x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff800083930a96 x14: 0000000000000583 x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 0000000000000584 x7 : 00000000000008ac x6 : 00000000000008ac x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001e0e x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff800083931216 x14: 00000000000005a2 x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 00000000000005a3 x7 : 00000000000008ed x6 : 00000000000008ed x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001e0e x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: ffff80008509bb90 x16: 0000000000001000 x15: ffff800083931996 x14: 00000000000005c1 x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 00000000000005c2 x7 : 000000000000092e x6 : 000000000000092e x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 0000000000001e0e x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff800083932116 x14: 00000000000005e0 x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 00000000000005e1 x7 : 000000000000096f x6 : 000000000000096f x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 000000000000212b x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff800083932896 x14: 00000000000005ff x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 0000000000000600 x7 : 00000000000009b0 x6 : 00000000000009b0 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 000000000000212b x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff800083933016 x14: 000000000000061e x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 000000000000061f x7 : 00000000000009f1 x6 : 00000000000009f1 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 000000000000212b x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff800083933796 x14: 000000000000063d x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 000000000000063e x7 : 0000000000000a32 x6 : 0000000000000a32 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 000000000000212b x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff800083933f16 x14: 000000000000065c x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 000000000000065d x7 : 0000000000000a73 x6 : 0000000000000a73 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 000000000000212b x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff800083934696 x14: 000000000000067b x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 000000000000067c x7 : 0000000000000ab4 x6 : 0000000000000ab4 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 000000000000212b x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff800083934e16 x14: 000000000000069a x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 000000000000069b x7 : 0000000000000af5 x6 : 0000000000000af5 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1329 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329, CPU#1: kworker/1:2/107 Modules linked in: CPU: 1 UID: 0 PID: 107 Comm: kworker/1:2 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 61402009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 sp : ffff800083f23c20 x29: ffff800083f23c50 x28: 0000000000000000 x27: 0000000000000000 x26: f6f0000005b9f000 x25: ffff800083f23c20 x24: fbf0000006293488 x23: 0000000000000000 x22: 000000000000212b x21: 0000000000000000 x20: 0000000000000000 x19: f6f0000005b9f000 x18: 00000000ffffffff x17: 0000000000000000 x16: fbf000000409fa00 x15: ffff800083935596 x14: 00000000000006b9 x13: ffff800083f23880 x12: 0000000000000000 x11: ffff8000836b9030 x10: 0000000000000000 x9 : ffff8000836b9030 x8 : 00000000000006ba x7 : 0000000000000b36 x6 : 0000000000000b36 x5 : ffff8000836b8f50 x4 : fff07ffffc26f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fbf0000005aca200 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1329 (P) drm_client_modeset_wait_for_vblank+0x70/0x84 drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/clients/drm_fbdev_helper.c:298 [inline] drm_fb_helper_damage_work+0x178/0x39c drivers/gpu/drm/clients/drm_fbdev_helper.c:336 process_one_work+0x1ac/0x320 kernel/workqueue.c:3495 process_scheduled_works kernel/workqueue.c:3578 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3659 kthread+0x10c/0x120 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 ---[ end trace 0000000000000000 ]---