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WARNING: CPU: 2 PID: 0 at drivers/block/floppy.c:999 schedule_bh+0x5f/0x70 drivers/block/floppy.c:999
Modules linked in:
CPU: 2 PID: 0 Comm: swapper/2 Not tainted 5.14.0-rc4-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:schedule_bh+0x5f/0x70 drivers/block/floppy.c:999
Code: 87 d9 08 fd 48 89 2d b0 dc e4 0b 5b 48 c7 c2 20 34 47 8c 48 8b 35 81 e1 e4 0b bf 08 00 00 00 5d e9 e6 de de fc e8 61 d9 08 fd <0f> 0b eb d1 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 e8 4b d9 08 fd
RSP: 0018:ffffc90000780dd0 EFLAGS: 00010046
RAX: 0000000080010001 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff8880116ae100 RSI: ffffffff846bf76f RDI: 0000000000000003
RBP: ffffffff846bf3a0 R08: 0000000000000000 R09: ffffffff8c473427
R10: ffffffff846bf73f R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff846bf3a0 R14: 0000000000000000 R15: ffff8880109e0000
FS:  0000000000000000(0000) GS:ffff88802cc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32c22000 CR3: 0000000047196000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 floppy_interrupt+0x228/0x340 drivers/block/floppy.c:1765
 floppy_hardint+0x256/0x320 arch/x86/include/asm/floppy.h:66
 __handle_irq_event_percpu+0x303/0x8f0 kernel/irq/handle.c:156
 handle_irq_event_percpu kernel/irq/handle.c:196 [inline]
 handle_irq_event+0x102/0x280 kernel/irq/handle.c:213
 handle_edge_irq+0x25f/0xd00 kernel/irq/chip.c:819
 generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
 handle_irq arch/x86/kernel/irq.c:231 [inline]
 __common_interrupt+0x9d/0x210 arch/x86/kernel/irq.c:250
 common_interrupt+0x9f/0xd0 arch/x86/kernel/irq.c:240
 </IRQ>
 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:629
RIP: 0010:default_idle+0xb/0x10 arch/x86/kernel/process.c:717
Code: ff ff e8 e8 88 8d f8 e9 24 fe ff ff e8 ee 58 fd ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc eb 07 0f 00 2d d7 1b 59 00 fb f4 <c3> 0f 1f 40 00 41 54 be 08 00 00 00 53 65 48 8b 1c 25 00 f0 01 00
RSP: 0018:ffffc9000066fdf8 EFLAGS: 00000206
RAX: 000000000028cf7d RBX: ffff8880116ae100 RCX: ffffffff892a621f
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000002 R08: 0000000000000001 R09: ffff88802cc52b4b
R10: ffffed100598a569 R11: 0000000000000000 R12: ffffed10022d5c20
R13: 0000000000000002 R14: ffffffff8d6c41d0 R15: 0000000000000000
 default_idle_call+0x87/0xd0 kernel/sched/idle.c:112
 cpuidle_idle_call kernel/sched/idle.c:194 [inline]
 do_idle+0x401/0x590 kernel/sched/idle.c:306
 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:403
 start_secondary+0x265/0x340 arch/x86/kernel/smpboot.c:270
 secondary_startup_64_no_verify+0xb0/0xbb