------------[ cut here ]------------ NETDEV WATCHDOG: sl0 (): transmit queue 0 timed out 37750 ms WARNING: CPU: 0 PID: 4271 at net/sched/sch_generic.c:526 dev_watchdog+0x63c/0x688 net/sched/sch_generic.c:525 Modules linked in: CPU: 0 PID: 4271 Comm: kworker/u4:10 Not tainted 6.7.0-rc8-syzkaller-g0802e17d9aca #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Workqueue: bat_events batadv_nc_worker pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : dev_watchdog+0x63c/0x688 net/sched/sch_generic.c:525 lr : dev_watchdog+0x63c/0x688 net/sched/sch_generic.c:525 sp : ffff800080007bb0 x29: ffff800080007be0 x28: dfff800000000000 x27: fffffffffffff911 x26: ffff0000cba1d000 x25: 0000000000000000 x24: 0000000000000110 x23: ffff0000cba1d070 x22: 0000000000009376 x21: ffff0000cd8ae000 x20: ffff0000cd8ae000 x19: ffff0000cd8ae548 x18: ffff800080007080 x17: 0000000000000000 x16: ffff80008a830eb8 x15: 0000000000000001 x14: 1fffe0003682623a x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000103 x10: 0000000000ff0100 x9 : 3472ca545d0c1900 x8 : 3472ca545d0c1900 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800080007498 x4 : ffff80008e5d20c0 x3 : ffff8000805ab6bc x2 : 0000000000000001 x1 : 0000000000000101 x0 : 0000000000000000 Call trace: dev_watchdog+0x63c/0x688 net/sched/sch_generic.c:525 call_timer_fn+0x19c/0x8cc kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1751 [inline] __run_timers+0x55c/0x734 kernel/time/timer.c:2022 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:2035 __do_softirq+0x2d8/0xce4 kernel/softirq.c:553 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:886 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86 invoke_softirq kernel/softirq.c:434 [inline] __irq_exit_rcu+0x1d8/0x434 kernel/softirq.c:632 irq_exit_rcu+0x14/0x84 kernel/softirq.c:644 __el1_irq arch/arm64/kernel/entry-common.c:503 [inline] el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:517 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:522 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:591 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:176 [inline] arch_local_irq_restore arch/arm64/include/asm/irqflags.h:196 [inline] lock_release+0x4f4/0x9ac kernel/locking/lockdep.c:5777 rcu_lock_release+0x2c/0x38 include/linux/rcupdate.h:306 rcu_read_unlock include/linux/rcupdate.h:780 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline] batadv_nc_worker+0x260/0x580 net/batman-adv/network-coding.c:719 process_one_work+0x694/0x1204 kernel/workqueue.c:2627 process_scheduled_works kernel/workqueue.c:2700 [inline] worker_thread+0x938/0xef4 kernel/workqueue.c:2781 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:857 irq event stamp: 44947 hardirqs last enabled at (44946): [] __up_console_sem kernel/printk/printk.c:341 [inline] hardirqs last enabled at (44946): [] __console_unlock kernel/printk/printk.c:2706 [inline] hardirqs last enabled at (44946): [] console_unlock+0x17c/0x3d4 kernel/printk/printk.c:3038 hardirqs last disabled at (44947): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:436 softirqs last enabled at (44916): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (44916): [] batadv_nc_purge_paths+0x2f4/0x378 net/batman-adv/network-coding.c:471 softirqs last disabled at (44923): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 ---[ end trace 0000000000000000 ]--- sl0: transmit timed out, driver error? sl2: transmit timed out, driver error?