------------[ cut here ]------------ NETDEV WATCHDOG: sl0 (): transmit queue 0 timed out 40320 ms WARNING: CPU: 0 PID: 6127 at net/sched/sch_generic.c:526 dev_watchdog+0x63c/0x688 net/sched/sch_generic.c:525 Modules linked in: CPU: 0 PID: 6127 Comm: syz-executor.5 Not tainted 6.7.0-rc6-syzkaller-gaafe7ad77b91 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 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: fffffffffffff810 x26: ffff0000d4645c00 x25: 0000000000000000 x24: 0000000000000110 x23: ffff0000d4645c70 x22: 0000000000009d80 x21: ffff0000ce72e000 x20: ffff0000ce72e000 x19: ffff0000ce72e548 x18: ffff800080007080 x17: 0000000000000000 x16: ffff80008a82b138 x15: 0000000000000001 x14: 1fffe0003682623a x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000103 x10: 0000000000ff0100 x9 : 850d671683ba1500 x8 : 850d671683ba1500 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800080007498 x4 : ffff80008e5d20c0 x3 : ffff8000805a9ecc 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/0x40 include/linux/rcupdate.h:306 rcu_read_unlock include/linux/rcupdate.h:780 [inline] ext4_get_group_info+0x2d0/0x390 fs/ext4/balloc.c:336 ext4_mb_prefetch+0x130/0x34c fs/ext4/mballoc.c:2706 ext4_mb_regular_allocator+0x83c/0x2fa8 fs/ext4/mballoc.c:2866 ext4_mb_new_blocks+0xcac/0x445c fs/ext4/mballoc.c:6191 ext4_ext_map_blocks+0x1728/0x5f94 fs/ext4/extents.c:4285 ext4_map_blocks+0x810/0x1810 fs/ext4/inode.c:621 ext4_getblk+0x19c/0x770 fs/ext4/inode.c:831 ext4_bread+0x3c/0x1b0 fs/ext4/inode.c:887 ext4_append+0x260/0x4cc fs/ext4/namei.c:83 ext4_init_new_dir+0x294/0x8e4 fs/ext4/namei.c:2980 ext4_mkdir+0x3d4/0xa64 fs/ext4/namei.c:3026 vfs_mkdir+0x27c/0x3e4 fs/namei.c:4106 do_mkdirat+0x248/0x574 fs/namei.c:4129 __do_sys_mkdirat fs/namei.c:4144 [inline] __se_sys_mkdirat fs/namei.c:4142 [inline] __arm64_sys_mkdirat+0x90/0xa8 fs/namei.c:4142 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 irq event stamp: 10756493 hardirqs last enabled at (10756492): [] __up_console_sem kernel/printk/printk.c:341 [inline] hardirqs last enabled at (10756492): [] __console_unlock kernel/printk/printk.c:2706 [inline] hardirqs last enabled at (10756492): [] console_unlock+0x17c/0x3d4 kernel/printk/printk.c:3038 hardirqs last disabled at (10756493): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:436 softirqs last enabled at (10755698): [] softirq_handle_end kernel/softirq.c:399 [inline] softirqs last enabled at (10755698): [] __do_softirq+0xac8/0xce4 kernel/softirq.c:582 softirqs last disabled at (10756445): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 ---[ end trace 0000000000000000 ]--- sl0: transmit timed out, driver error?