cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10907/1:b..l rcu: (detected by 0, t=10502 jiffies, g=58777, q=101 ncpus=2) task:syz-executor.2 state:R running task stack:27168 pid:10907 tgid:10906 ppid:8450 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xf15/0x5d00 kernel/sched/core.c:6745 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7067 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:kasan_check_range+0x1a/0x1a0 mm/kasan/generic.c:188 Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 85 f6 0f 84 50 01 00 00 48 89 f8 41 54 44 0f b6 c2 48 01 f0 55 <53> 0f 82 c6 00 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 f8 0f 83 RSP: 0018:ffffc90003677380 EFLAGS: 00000286 RAX: ffff88801847b1b8 RBX: ffff88801847b1d8 RCX: ffffffff81f2a236 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88801847b1b0 RBP: 000000000000000f R08: 0000000000000001 R09: ffffed100308f636 R10: ffff88801847b1b7 R11: 0000000000000002 R12: ffff88801847b1b0 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 instrument_write include/linux/instrumented.h:40 [inline] ___set_bit include/asm-generic/bitops/instrumented-non-atomic.h:28 [inline] __update_page_owner_handle+0x276/0x320 mm/page_owner.c:254 __set_page_owner+0x13f/0x560 mm/page_owner.c:325 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x2d1/0x350 mm/page_alloc.c:1468 prep_new_page mm/page_alloc.c:1476 [inline] get_page_from_freelist+0x136a/0x2e50 mm/page_alloc.c:3420 __alloc_pages_noprof+0x22b/0x2460 mm/page_alloc.c:4678 alloc_pages_mpol_noprof+0x275/0x610 mm/mempolicy.c:2265 shmem_alloc_folio+0x114/0x150 mm/shmem.c:1628 shmem_alloc_and_add_folio+0x14f/0x790 mm/shmem.c:1668 shmem_get_folio_gfp+0x687/0x13d0 mm/shmem.c:2055 shmem_get_folio mm/shmem.c:2160 [inline] shmem_write_begin+0x15a/0x360 mm/shmem.c:2743 generic_perform_write+0x272/0x620 mm/filemap.c:4015 shmem_file_write_iter+0x114/0x140 mm/shmem.c:2919 new_sync_write fs/read_write.c:497 [inline] vfs_write+0x6b6/0x1140 fs/read_write.c:590 ksys_write+0x12f/0x260 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f696227bc6f RSP: 002b:00007f6962f94e80 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000001000000 RCX: 00007f696227bc6f RDX: 0000000001000000 RSI: 00007f6958000000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000000050ce R10: 0000000000000002 R11: 0000000000000293 R12: 0000000000000003 R13: 00007f6962f94f80 R14: 00007f6962f94f40 R15: 00007f6958000000 rcu: rcu_preempt kthread starved for 10509 jiffies! g58777 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:27584 pid:17 tgid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xf15/0x5d00 kernel/sched/core.c:6745 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6924 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0x61/0x80 kernel/locking/spinlock.c:194 debug_object_assert_init+0x220/0x370 lib/debugobjects.c:899 debug_timer_assert_init kernel/time/timer.c:846 [inline] debug_assert_init kernel/time/timer.c:891 [inline] __try_to_del_timer_sync+0x80/0x170 kernel/time/timer.c:1504 __timer_delete_sync+0xf4/0x1b0 kernel/time/timer.c:1665 timer_delete_sync kernel/time/timer.c:1720 [inline] del_timer_sync include/linux/timer.h:185 [inline] schedule_timeout+0x140/0x2a0 kernel/time/timer.c:2582 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2000 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2202 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline] NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:112 cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: nonzero urb status received: -71 cdc_wdm 2-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 2-1:1.0: wdm_int_callback - usb_submit_urb failed with result -1