------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f5f000000715a000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 00000000000002f0 x13: 00000000e5b906e6 x12: 000001618ec49dfc x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f7f0000003690080 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000832abb4d x14: 00000000000001ad x13: 00000000f5257d14 x12: 0000b0528bbb7f94 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f1f0000007159800 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 000000000000031d x13: 00000000d744fcc9 x12: 00009bd0c3284cac x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: 00000000ffffffff x17: 0000000000000000 x16: 0000000000000000 x15: ffff800082e5e006 x14: 00000000ffffffea x13: ffff8000871f3918 x12: ffff800082c2bde0 x11: ffff800082b7be38 x10: ffff800082c2be38 x9 : 0000000000000001 x8 : 0000000000000001 x7 : 0000000000000002 x6 : ffffffffffffffff x5 : 0000000000001787 x4 : 0000000000000002 x3 : 0000000000000001 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f5f000000715a000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000275 x13: 00000000eac0c6e6 x12: 00000165a1af0264 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: fdf00000227e9400 x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffffc21af8c0 x14: 0000000000000002 x13: 00000000e5b906e6 x12: 000000c2b9d6d8f6 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: faf0000005d99140 x17: ffff800083eebbb0 x16: 0000000000001000 x15: f6f0000004b149af x14: 00000000000003e0 x13: 00000000e5b906e6 x12: 0000011b906483e8 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f6f0000003691140 x17: 00000000cc7aae78 x16: 0000000086d24e68 x15: 000000002b12054b x14: 0000000000000005 x13: 00000000d744fcc9 x12: 00001b30f0c60b86 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 000000000000b67e x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f5f000000715a000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 000000000000009e x13: 00000000f5257d14 x12: 0000005dd859e1a8 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f7f0000003690080 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000832abb4d x14: 00000000000000ea x13: 00000000eac0c6e6 x12: 0000015b8b667682 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f5f000000715a000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 000000000000002d x13: 00000000eac0c6e6 x12: 00000208dbb94e50 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f5f000000715a000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 00000000000001e9 x13: 00000000f5257d14 x12: 000000fdc3ce79b4 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f5f000000715a000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000265 x13: 00000000eac0c6e6 x12: 000001a7a7e6f314 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f5f000000715a000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000079 x13: 00000000eac0c6e6 x12: 0000010bc3e2de58 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f6f0000003691140 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 00000000000001a3 x13: 00000000eac0c6e6 x12: 00000c772c8fc690 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f5f000000715a000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000126 x13: 00000000eac0c6e6 x12: 00001cf6e50a64c4 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f7f00000068ae500 x17: 000000005a0031bb x16: 00000000a0a4b401 x15: 000000005f412ede x14: 000000000000013e x13: 00000000dbfbb796 x12: 00002eee02193afe x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f5f000000715a000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000246 x13: 00000000f5257d14 x12: 00000115b477b0a8 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f2f000000715ac00 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000297 x13: 00000000eac0c6e6 x12: 0000004786bc9a14 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: faf0000005d99140 x17: 0000000000000000 x16: 0000000000000000 x15: ffff8000832abb4d x14: 00000000000001f7 x13: 00000000d744fcc9 x12: 0000020378314d4d x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 000000000000b67e x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f5f000000715a000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000337 x13: 00000000efe4b99a x12: 000011227d45c0ea x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f6f0000003691140 x17: fff07ffffadc6000 x16: ffff800082f40000 x15: ffff8000832abb4d x14: 0000000000000022 x13: 00000000d744fcc9 x12: 0000017b3e89561b x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 000000000000b67e x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: fcf00000068a4380 x17: fff07ffffadc6000 x16: ffff800082f40000 x15: 0000000000000002 x14: 000000000000026e x13: 00000000d744fcc9 x12: 0000014cfeb706ec x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 000000000000b67e x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f1f00000035a6500 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 00000000000001c5 x13: 00000000eac0c6e6 x12: 000000dfbfbd9338 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320, CPU#1: kworker/1:9/9597 Modules linked in: CPU: 1 UID: 0 PID: 9597 Comm: kworker/1:9 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP 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:1320 lr : drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000871f3cc0 x29: ffff8000871f3cf0 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff8000871f3cc0 x24: fcf00000052be888 x23: 0000000000000000 x22: 000000000001646a x21: 0000000000000000 x20: 0000000000000000 x19: f2f00000048a6800 x18: f5f000000715a000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 00000000000000c8 x13: 00000000eac0c6e6 x12: 000000dcff7b3e86 x11: 00000000000000c0 x10: 38b551e2075b4ff8 x9 : ea745e25922c39b8 x8 : f8f00000048b6408 x7 : 0000000000000004 x6 : 0000000000000000 x5 : f8f00000048b53c0 x4 : fbffff3fffffffff x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : f8f00000048b53c0 Call trace: drm_crtc_wait_one_vblank+0x1b4/0x238 drivers/gpu/drm/drm_vblank.c:1320 (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/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x88/0x1c8 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x180/0x2d0 kernel/workqueue.c:3302 process_scheduled_works kernel/workqueue.c:3385 [inline] worker_thread+0x18c/0x300 kernel/workqueue.c:3466 kthread+0x118/0x130 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:858 ---[ end trace 0000000000000000 ]---