BUG: sleeping function called from invalid context at kernel/workqueue.c:4561
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 30999, name: kworker/1:0
preempt_count: 100, expected: 0
RCU nest depth: 0, expected: 0
locks held by kworker/1:0/30999: 5, last CPU#1:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc900237cfc40 ((work_completion)(&helper->damage_work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffffc900237cf770 (crtc_ww_class_acquire){+.+.}-{0:0}, at: drm_atomic_helper_dirtyfb+0x106/0xfd0
 #3: ffffc900237cf798 (crtc_ww_class_mutex){+.+.}-{4:4}, at: drm_atomic_helper_dirtyfb+0x106/0xfd0
 #4: ffffc90000a18cc0 ((&vub300->inactivity_timer)){+.-.}-{0:0}, at: call_timer_fn+0xd5/0x5f0
Preemption disabled at:
[<ffffffff818913db>] handle_softirqs+0xab/0x860
CPU: 1 UID: 0 PID: 30999 Comm: kworker/1:0 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: events drm_fb_helper_damage_work
Call Trace:
 <IRQ>
 dump_stack_lvl+0xe8/0x150
 __might_resched+0x36a/0x4c0
 __cancel_work_sync+0x6d/0x110
 mmc_free_host+0x19/0x40
 call_timer_fn+0x18d/0x5f0
 __run_timer_base+0x652/0x8b0
 run_timer_softirq+0xb7/0x170
 handle_softirqs+0x226/0x860
 __irq_exit_rcu+0xcb/0x220
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:memcpy_toio+0x7c/0xe0
Code: 02 40 0f 94 c5 31 ff e8 32 31 aa fc b0 01 48 83 fb 02 73 4f 84 c0 74 51 e8 61 2b aa fc 48 89 d9 48 c1 e9 02 4c 89 fe 4c 89 f7 <f3> a5 f6 c3 02 74 02 66 a5 f6 c3 01 74 01 a4 5b 41 5e 41 5f 5d e9
RSP: 0018:ffffc900237cf128 EFLAGS: 00010202
RAX: ffffffff851de3ef RBX: 0000000000000960 RCX: 00000000000000e8
RDX: 0000000000000000 RSI: ffffc90004a32860 RDI: ffffc90005229860
RBP: 0000000000001401 R08: ffffc900237cf310 R09: 0000000000000001
R10: ffffc900237cf339 R11: fffff520046f9e68 R12: ffff888106796958
R13: ffffc900052292a0 R14: ffffc900052292a0 R15: ffffc90004a322a0
 drm_fb_memcpy+0x325/0x5d0
 bochs_primary_plane_helper_atomic_update+0x361/0xa30
 drm_atomic_helper_commit_planes+0x626/0xea0
 drm_atomic_helper_commit_tail+0x60/0x510
 commit_tail+0x2b1/0x3c0
 drm_atomic_helper_commit+0xa77/0xb10
 drm_atomic_commit+0x24e/0x2b0
 drm_atomic_helper_dirtyfb+0xe2f/0xfd0
 drm_fbdev_shmem_helper_fb_dirty+0x160/0x310
 drm_fb_helper_damage_work+0x84c/0xf20
 process_scheduled_works+0xc3d/0x1630
 worker_thread+0xa47/0xfb0
 kthread+0x38b/0x480
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
ODEBUG: object ffffc90000a18a80 is NOT on stack ffffc900237c8000, but annotated.
------------[ cut here ]------------
1
WARNING: lib/debugobjects.c:672 at __debug_object_init+0x2c4/0x3c0, CPU#1: kworker/1:0/30999
Modules linked in:
CPU: 1 UID: 0 PID: 30999 Comm: kworker/1:0 Tainted: G        W    L      syzkaller #0 PREEMPT(full) 
Tainted: [W]=WARN, [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: events drm_fb_helper_damage_work
RIP: 0010:__debug_object_init+0x2c4/0x3c0
Code: cc cc cc 41 ff c7 44 89 3d 49 00 e8 15 48 c7 c1 80 b6 6d 8c 48 c7 c7 e0 b6 6d 8c 84 c0 48 0f 45 f9 48 89 de e8 8d 62 3c fc 90 <0f> 0b 90 e9 c0 fe ff ff e8 4f 1c 00 00 8b 05 e1 6a 6d 0a 3b 05 df
RSP: 0018:ffffc90000a189b8 EFLAGS: 00010046
RAX: 0000000000000050 RBX: ffffc90000a18a80 RCX: cef914eb5e861700
RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000
RBP: ffff8881a2868020 R08: 0000000000000100 R09: 1ffff110478c48e2
R10: dffffc0000000000 R11: ffffed10478c48e3 R12: 1ffff9200014314c
R13: ffff88819e5f0578 R14: dffffc0000000000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8882a8cc7000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2df1eff8 CR3: 00000001abe1c000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __synchronize_srcu+0x1d5/0x2f0
 wakeup_source_unregister+0x129/0x3f0
 mmc_host_classdev_release+0x47/0x100
 device_release+0xc4/0x1f0
 kobject_put+0x222/0x550
 call_timer_fn+0x18d/0x5f0
 __run_timer_base+0x652/0x8b0
 run_timer_softirq+0xb7/0x170
 handle_softirqs+0x226/0x860
 __irq_exit_rcu+0xcb/0x220
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:memcpy_toio+0x7c/0xe0
Code: 02 40 0f 94 c5 31 ff e8 32 31 aa fc b0 01 48 83 fb 02 73 4f 84 c0 74 51 e8 61 2b aa fc 48 89 d9 48 c1 e9 02 4c 89 fe 4c 89 f7 <f3> a5 f6 c3 02 74 02 66 a5 f6 c3 01 74 01 a4 5b 41 5e 41 5f 5d e9
RSP: 0018:ffffc900237cf128 EFLAGS: 00010202
RAX: ffffffff851de3ef RBX: 0000000000000960 RCX: 00000000000000e8
RDX: 0000000000000000 RSI: ffffc90004a32860 RDI: ffffc90005229860
RBP: 0000000000001401 R08: ffffc900237cf310 R09: 0000000000000001
R10: ffffc900237cf339 R11: fffff520046f9e68 R12: ffff888106796958
R13: ffffc900052292a0 R14: ffffc900052292a0 R15: ffffc90004a322a0
 drm_fb_memcpy+0x325/0x5d0
 bochs_primary_plane_helper_atomic_update+0x361/0xa30
 drm_atomic_helper_commit_planes+0x626/0xea0
 drm_atomic_helper_commit_tail+0x60/0x510
 commit_tail+0x2b1/0x3c0
 drm_atomic_helper_commit+0xa77/0xb10
 drm_atomic_commit+0x24e/0x2b0
 drm_atomic_helper_dirtyfb+0xe2f/0xfd0
 drm_fbdev_shmem_helper_fb_dirty+0x160/0x310
 drm_fb_helper_damage_work+0x84c/0xf20
 process_scheduled_works+0xc3d/0x1630
 worker_thread+0xa47/0xfb0
 kthread+0x38b/0x480
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
