------------[ 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/1:3/3394 Modules linked in: CPU: 1 UID: 0 PID: 3394 Comm: kworker/1:3 Not tainted syzkaller #0 PREEMPT Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60402009 (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 : ffff8000863f3c20 x29: ffff8000863f3c50 x28: 0000000000000000 x27: 0000000000000000 x26: f7f00000049f6000 x25: ffff8000863f3c20 x24: f5f000000662cc88 x23: 0000000000000000 x22: 00000000000039fe x21: 0000000000000000 x20: 0000000000000000 x19: f7f00000049f6000 x18: 00000000ffffffff x17: fff07ffffc25f000 x16: ffff800083a40000 x15: ffff80008393d706 x14: 00000000000004bb x13: ffff8000863f3880 x12: 0000000000000000 x11: ffff8000836c9030 x10: 0000000000000000 x9 : ffff8000836c9030 x8 : 00000000000004bc x7 : 0000000000000710 x6 : 0000000000000711 x5 : ffff8000836c8f50 x4 : fff07ffffc25f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f5f0000007059100 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/1:3/3394 Modules linked in: CPU: 1 UID: 0 PID: 3394 Comm: kworker/1:3 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60402009 (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 : ffff8000863f3c20 x29: ffff8000863f3c50 x28: 0000000000000000 x27: 0000000000000000 x26: f7f00000049f6000 x25: ffff8000863f3c20 x24: f5f000000662cc88 x23: 0000000000000000 x22: 00000000000039fe x21: 0000000000000000 x20: 0000000000000000 x19: f7f00000049f6000 x18: 00000000ffffffff x17: fff07ffffc25f000 x16: ffff800083a40000 x15: ffff80008393de56 x14: 00000000000004d9 x13: ffff8000863f3880 x12: 0000000000000000 x11: ffff8000836c9030 x10: 0000000000000000 x9 : ffff8000836c9030 x8 : 00000000000004da x7 : 0000000000000750 x6 : 0000000000000751 x5 : ffff8000837fa2a0 x4 : fff07ffffc25f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f5f0000007059100 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/1:3/3394 Modules linked in: CPU: 1 UID: 0 PID: 3394 Comm: kworker/1:3 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60402009 (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 : ffff8000863f3c20 x29: ffff8000863f3c50 x28: 0000000000000000 x27: 0000000000000000 x26: f7f00000049f6000 x25: ffff8000863f3c20 x24: f5f000000662cc88 x23: 0000000000000000 x22: 00000000000039fe x21: 0000000000000000 x20: 0000000000000000 x19: f7f00000049f6000 x18: 00000000ffffffff x17: fff07ffffc25f000 x16: ffff800083a40000 x15: ffff80008393e5d6 x14: 00000000000004f8 x13: ffff8000863f3880 x12: 0000000000000000 x11: ffff8000836c9030 x10: 0000000000000000 x9 : ffff8000836c9030 x8 : 00000000000004f9 x7 : 0000000000000791 x6 : 0000000000000792 x5 : ffff8000836c8f50 x4 : fff07ffffc25f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f5f0000007059100 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/1:3/3394 Modules linked in: CPU: 1 UID: 0 PID: 3394 Comm: kworker/1:3 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60402009 (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 : ffff8000863f3c20 x29: ffff8000863f3c50 x28: 0000000000000000 x27: 0000000000000000 x26: f7f00000049f6000 x25: ffff8000863f3c20 x24: f5f000000662cc88 x23: 0000000000000000 x22: 00000000000039fe x21: 0000000000000000 x20: 0000000000000000 x19: f7f00000049f6000 x18: 00000000ffffffff x17: 0000000000000000 x16: f4f00000040a1980 x15: ffff80008393ed56 x14: 0000000000000517 x13: ffff8000863f3880 x12: 0000000000000000 x11: ffff8000836c9030 x10: 0000000000000000 x9 : ffff8000836c9030 x8 : 0000000000000518 x7 : 00000000000007d2 x6 : 00000000000007d3 x5 : ffff8000836c8f50 x4 : fff07ffffc25f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f5f0000007059100 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/1:3/3394 Modules linked in: CPU: 1 UID: 0 PID: 3394 Comm: kworker/1:3 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60402009 (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 : ffff8000863f3c20 x29: ffff8000863f3c50 x28: 0000000000000000 x27: 0000000000000000 x26: f7f00000049f6000 x25: ffff8000863f3c20 x24: f5f000000662cc88 x23: 0000000000000000 x22: 00000000000039fe x21: 0000000000000000 x20: 0000000000000000 x19: f7f00000049f6000 x18: 00000000ffffffff x17: fff07ffffc25f000 x16: ffff800083a40000 x15: ffff80008393f4d6 x14: 0000000000000536 x13: ffff8000863f3880 x12: 0000000000000000 x11: ffff8000836c9030 x10: 0000000000000000 x9 : ffff8000836c9030 x8 : 0000000000000537 x7 : 0000000000000813 x6 : 0000000000000814 x5 : ffff8000836c8f50 x4 : fff07ffffc25f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f5f0000007059100 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/1:3/3394 Modules linked in: CPU: 1 UID: 0 PID: 3394 Comm: kworker/1:3 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60402009 (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 : ffff8000863f3c20 x29: ffff8000863f3c50 x28: 0000000000000000 x27: 0000000000000000 x26: f7f00000049f6000 x25: ffff8000863f3c20 x24: f5f000000662cc88 x23: 0000000000000000 x22: 00000000000039fe x21: 0000000000000000 x20: 0000000000000000 x19: f7f00000049f6000 x18: 00000000ffffffff x17: fff07ffffc25f000 x16: ffff800083a40000 x15: ffff80008393fc56 x14: 0000000000000555 x13: ffff8000863f3880 x12: 0000000000000000 x11: ffff8000836c9030 x10: 0000000000000000 x9 : ffff8000836c9030 x8 : 0000000000000556 x7 : 0000000000000854 x6 : 0000000000000855 x5 : ffff8000836c8f50 x4 : fff07ffffc25f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f5f0000007059100 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/1:3/3394 Modules linked in: CPU: 1 UID: 0 PID: 3394 Comm: kworker/1:3 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 : ffff8000863f3c20 x29: ffff8000863f3c50 x28: 0000000000000000 x27: 0000000000000000 x26: f7f00000049f6000 x25: ffff8000863f3c20 x24: f5f000000662cc88 x23: 0000000000000000 x22: 00000000000039fe x21: 0000000000000000 x20: 0000000000000000 x19: f7f00000049f6000 x18: 00000000ffffffff x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000839403d6 x14: 0000000000000574 x13: ffff8000863f3880 x12: 0000000000000000 x11: ffff8000836c9030 x10: 0000000000000000 x9 : ffff8000836c9030 x8 : 0000000000000575 x7 : 0000000000000895 x6 : 0000000000000896 x5 : ffff8000836c8f50 x4 : fff07ffffc25f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f5f0000007059100 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/1:3/3394 Modules linked in: CPU: 1 UID: 0 PID: 3394 Comm: kworker/1:3 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: linux,dummy-virt (DT) Workqueue: events drm_fb_helper_damage_work pstate: 60402009 (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 : ffff8000863f3c20 x29: ffff8000863f3c50 x28: 0000000000000000 x27: 0000000000000000 x26: f7f00000049f6000 x25: ffff8000863f3c20 x24: f5f000000662cc88 x23: 0000000000000000 x22: 00000000000039fe x21: 0000000000000000 x20: 0000000000000000 x19: f7f00000049f6000 x18: 00000000ffffffff x17: 00000000a73f1d63 x16: 00000000a7188189 x15: ffff800083940b56 x14: 0000000000000593 x13: ffff8000863f3880 x12: 0000000000000000 x11: ffff8000836c9030 x10: 0000000000000000 x9 : ffff8000836c9030 x8 : 0000000000000594 x7 : 00000000000008d6 x6 : 00000000000008d7 x5 : ffff8000836c8f50 x4 : fff07ffffc25f000 x3 : fff000007f8d1208 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f5f0000007059100 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 ]---