------------[ cut here ]------------ WARNING: CPU: 1 PID: 9 at include/linux/cpumask.h:110 cpumask_check include/linux/cpumask.h:117 [inline] WARNING: CPU: 1 PID: 9 at include/linux/cpumask.h:110 cpumask_test_cpu include/linux/cpumask.h:441 [inline] WARNING: CPU: 1 PID: 9 at include/linux/cpumask.h:110 cpu_online include/linux/cpumask.h:1027 [inline] WARNING: CPU: 1 PID: 9 at include/linux/cpumask.h:110 blk_mq_hctx_next_cpu block/blk-mq.c:2144 [inline] WARNING: CPU: 1 PID: 9 at include/linux/cpumask.h:110 __blk_mq_delay_run_hw_queue+0x490/0x664 block/blk-mq.c:2185 Modules linked in: CPU: 1 PID: 9 Comm: kworker/u4:0 Tainted: G W 6.0.0-syzkaller-11546-g1440f5760228 #0 Hardware name: linux,dummy-virt (DT) Workqueue: writeback wb_workfn (flush-253:0) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : cpu_max_bits_warn include/linux/cpumask.h:110 [inline] pc : cpumask_check include/linux/cpumask.h:117 [inline] pc : cpumask_next_and include/linux/cpumask.h:233 [inline] pc : blk_mq_hctx_next_cpu block/blk-mq.c:2133 [inline] pc : __blk_mq_delay_run_hw_queue+0x490/0x664 block/blk-mq.c:2185 lr : blk_mq_run_hw_queue+0x1f0/0x2d4 block/blk-mq.c:2228 sp : ffff800010b862a0 x29: ffff800010b862a0 x28: ffff00001173a134 x27: ffff80000de5c000 x26: ffff00001173a130 x25: 0000000000000000 x24: 1fffe000022e7426 x23: fffffbffefff6100 x22: 0000000000000000 x21: 0000000000000002 x20: 0000000000000000 x19: ffff00001173a000 x18: ffff00006a9eab88 x17: 0000000000000000 x16: 00000000f1f1f1f1 x15: ffff800008935178 x14: 1ffff00002170c32 x13: 0000000000000000 x12: ffff6000022e7409 x11: 1fffe000022e7408 x10: ffff6000022e7408 x9 : dfff800000000000 x8 : ffff00001173a047 x7 : ffff80000de5cb68 x6 : ffff80000de5cd50 x5 : 1fffe000022e7426 x4 : 0000000000000004 x3 : 1fffe000021e56cd x2 : 0000000000000002 x1 : 0000000000000000 x0 : 0000000000000003 Call trace: cpumask_check include/linux/cpumask.h:117 [inline] cpumask_test_cpu include/linux/cpumask.h:441 [inline] cpu_online include/linux/cpumask.h:1027 [inline] blk_mq_hctx_next_cpu block/blk-mq.c:2144 [inline] __blk_mq_delay_run_hw_queue+0x490/0x664 block/blk-mq.c:2185 blk_mq_run_hw_queue+0x1f0/0x2d4 block/blk-mq.c:2228 blk_mq_sched_insert_requests+0x200/0x870 block/blk-mq-sched.c:493 blk_mq_dispatch_plug_list block/blk-mq.c:2688 [inline] blk_mq_flush_plug_list+0x2a8/0xd00 block/blk-mq.c:2730 __blk_flush_plug+0x74/0x160 block/blk-core.c:1138 blk_flush_plug include/linux/blkdev.h:1027 [inline] io_schedule_prepare kernel/sched/core.c:8691 [inline] io_schedule+0xa8/0x114 kernel/sched/core.c:8721 bit_wait_io+0x18/0xbc kernel/sched/wait_bit.c:209 __wait_on_bit_lock+0x134/0x240 kernel/sched/wait_bit.c:90 out_of_line_wait_on_bit_lock+0xd0/0x110 kernel/sched/wait_bit.c:117 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline] __lock_buffer+0x5c/0x90 fs/buffer.c:69 lock_buffer include/linux/buffer_head.h:397 [inline] do_get_write_access+0x3b4/0x10a4 fs/jbd2/transaction.c:991 jbd2_journal_get_write_access+0xec/0x15c fs/jbd2/transaction.c:1242 __ext4_journal_get_write_access+0x150/0x3f0 fs/ext4/ext4_jbd2.c:235 ext4_mb_mark_diskspace_used+0x198/0xfbc fs/ext4/mballoc.c:3766 ext4_mb_new_blocks+0xcb0/0x47c0 fs/ext4/mballoc.c:5629 ext4_ext_map_blocks+0x1ac4/0x5610 fs/ext4/extents.c:4287 ext4_map_blocks+0x4fc/0x1250 fs/ext4/inode.c:645 mpage_map_one_extent fs/ext4/inode.c:2413 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2466 [inline] ext4_writepages+0x1440/0x2b20 fs/ext4/inode.c:2834 do_writepages+0x140/0x4c0 mm/page-writeback.c:2469 __writeback_single_inode+0x140/0x18e4 fs/fs-writeback.c:1587 writeback_sb_inodes+0x3d0/0xd10 fs/fs-writeback.c:1870 __writeback_inodes_wb+0xb8/0x1f0 fs/fs-writeback.c:1941 wb_writeback+0x9d4/0xef4 fs/fs-writeback.c:2046 wb_check_old_data_flush fs/fs-writeback.c:2146 [inline] wb_do_writeback fs/fs-writeback.c:2199 [inline] wb_workfn+0x7ac/0x1514 fs/fs-writeback.c:2227 process_one_work+0x780/0x184c kernel/workqueue.c:2289 worker_thread+0x3cc/0xc40 kernel/workqueue.c:2436 kthread+0x23c/0x2a0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 irq event stamp: 169154 hardirqs last enabled at (169153): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (169153): [] _raw_spin_unlock_irqrestore+0x90/0xc0 kernel/locking/spinlock.c:194 hardirqs last disabled at (169154): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:404 softirqs last enabled at (169120): [] _stext+0x9d4/0x107c softirqs last disabled at (169109): [] ____do_softirq+0x10/0x20 arch/arm64/kernel/irq.c:79 ---[ end trace 0000000000000000 ]---