BUG: sleeping function called from invalid context at kernel/printk/printk.c:2659
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 3681, name: kworker/0:2
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
5 locks held by kworker/0:2/3681:
 #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x668/0x15d4 kernel/workqueue.c:3241
 #1: ffff80009f487c20 ((work_completion)(&m->wq)){+.+.}-{0:0}, at: process_one_work+0x6b4/0x15d4 kernel/workqueue.c:3241
 #2: ffff0000ed5b40a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #3: ffff0000ed5b4130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: tty_write_lock drivers/tty/tty_io.c:954 [inline]
 #3: ffff0000ed5b4130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: iterate_tty_write drivers/tty/tty_io.c:973 [inline]
 #3: ffff0000ed5b4130 (&tty->atomic_write_lock){+.+.}-{3:3}, at: file_tty_write+0x188/0x7a4 drivers/tty/tty_io.c:1096
 #4: ffff0000f151b3e0 (&gsm->tx_lock){....}-{2:2}, at: gsmld_write+0x60/0x154 drivers/tty/n_gsm.c:3721
irq event stamp: 235978
hardirqs last  enabled at (235977): [<ffff80008af7caf4>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
hardirqs last  enabled at (235977): [<ffff80008af7caf4>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194
hardirqs last disabled at (235978): [<ffff80008af7c924>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (235978): [<ffff80008af7c924>] _raw_spin_lock_irqsave+0x2c/0x7c kernel/locking/spinlock.c:162
softirqs last  enabled at (235928): [<ffff8000801e6eb8>] softirq_handle_end kernel/softirq.c:400 [inline]
softirqs last  enabled at (235928): [<ffff8000801e6eb8>] handle_softirqs+0xa60/0xc34 kernel/softirq.c:582
softirqs last disabled at (235905): [<ffff800080020de8>] __do_softirq+0x14/0x20 kernel/softirq.c:588
Preemption disabled at:
[<ffff800083c136c0>] gsmld_write+0x60/0x154 drivers/tty/n_gsm.c:3721
CPU: 0 PID: 3681 Comm: kworker/0:2 Not tainted 6.9.0-rc7-syzkaller-gfda5695d692c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: events p9_write_work
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:317
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:114
 dump_stack+0x1c/0x28 lib/dump_stack.c:123
 __might_resched+0x374/0x4d0 kernel/sched/core.c:10197
 __might_sleep+0x90/0xe4 kernel/sched/core.c:10126
 console_lock+0x38/0x204 kernel/printk/printk.c:2659
 do_con_write+0x130/0x3d28 drivers/tty/vt/vt.c:3056
 con_write+0x34/0x58 drivers/tty/vt/vt.c:3434
 gsmld_write+0x104/0x154 drivers/tty/n_gsm.c:3724
 iterate_tty_write drivers/tty/tty_io.c:1021 [inline]
 file_tty_write+0x410/0x7a4 drivers/tty/tty_io.c:1096
 tty_write+0x48/0x58 drivers/tty/tty_io.c:1117
 __kernel_write_iter+0x348/0x748 fs/read_write.c:523
 __kernel_write fs/read_write.c:543 [inline]
 kernel_write+0x2f8/0x520 fs/read_write.c:564
 p9_fd_write net/9p/trans_fd.c:432 [inline]
 p9_write_work+0x45c/0xc1c net/9p/trans_fd.c:483
 process_one_work+0x7b8/0x15d4 kernel/workqueue.c:3267
 process_scheduled_works kernel/workqueue.c:3348 [inline]
 worker_thread+0x938/0xef4 kernel/workqueue.c:3429
 kthread+0x288/0x310 kernel/kthread.c:388
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860