BUG: sleeping function called from invalid context at kernel/printk/printk.c:2659 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5179, name: kworker/0:5 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 5 locks held by kworker/0:5/5179: #0: ffff888015078948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline] #0: ffff888015078948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312 #1: ffffc90002fbfd00 ((work_completion)(&m->wq)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline] #1: ffffc90002fbfd00 ((work_completion)(&m->wq)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312 #2: ffff88806bf590a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #3: ffff88806bf59130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: tty_write_lock drivers/tty/tty_io.c:954 [inline] #3: ffff88806bf59130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: iterate_tty_write drivers/tty/tty_io.c:973 [inline] #3: ffff88806bf59130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: file_tty_write+0x1f3/0x9b0 drivers/tty/tty_io.c:1096 #4: ffff88805e2733e0 (&gsm->tx_lock){....}-{2:2}, at: gsmld_write+0x5f/0x130 drivers/tty/n_gsm.c:3721 irq event stamp: 2030354 hardirqs last enabled at (2030353): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (2030353): [] _raw_spin_unlock_irq+0x23/0x50 kernel/locking/spinlock.c:202 hardirqs last disabled at (2030354): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (2030354): [] _raw_spin_lock_irqsave+0xb0/0x120 kernel/locking/spinlock.c:162 softirqs last enabled at (2030314): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (2030314): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline] softirqs last enabled at (2030314): [] nsim_dev_trap_report_work+0x75d/0xaa0 drivers/net/netdevsim/dev.c:850 softirqs last disabled at (2030312): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (2030312): [] nsim_dev_trap_report drivers/net/netdevsim/dev.c:816 [inline] softirqs last disabled at (2030312): [] nsim_dev_trap_report_work+0x6a7/0xaa0 drivers/net/netdevsim/dev.c:850 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 0 PID: 5179 Comm: kworker/0:5 Not tainted 6.9.0-syzkaller-10323-g8f6a15f095a6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: events p9_write_work Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 __might_resched+0x5d4/0x780 kernel/sched/core.c:10196 console_lock+0x20/0x1b0 kernel/printk/printk.c:2659 do_con_write+0x154/0x4c30 drivers/tty/vt/vt.c:3056 con_write+0x26/0x40 drivers/tty/vt/vt.c:3434 gsmld_write+0x100/0x130 drivers/tty/n_gsm.c:3724 iterate_tty_write drivers/tty/tty_io.c:1021 [inline] file_tty_write+0x551/0x9b0 drivers/tty/tty_io.c:1096 __kernel_write_iter+0x40f/0x900 fs/read_write.c:523 __kernel_write fs/read_write.c:543 [inline] kernel_write+0x217/0x330 fs/read_write.c:564 p9_fd_write net/9p/trans_fd.c:432 [inline] p9_write_work+0x57d/0xd80 net/9p/trans_fd.c:483 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393 kthread+0x2f2/0x390 kernel/kthread.c:389 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244