INFO: task kworker/1:2:10475 blocked for more than 143 seconds. Not tainted 6.10.0-rc7-syzkaller-00231-ge091caf99f3a #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:28240 pid:10475 tgid:10475 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x1796/0x49d0 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 kthread+0x23b/0x390 kernel/kthread.c:382 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Showing all locks held in the system: 1 lock held by khungtaskd/30: #0: ffffffff8e333f20 (rcu_read_lock ){....}-{1:2} , at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] , at: rcu_read_lock include/linux/rcupdate.h:781 [inline] , at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 3 locks held by kworker/u8:2/35: 2 locks held by kworker/1:1/45: 2 locks held by getty/4838: #0: ffff88802b2ab0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002f0e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211 2 locks held by kworker/1:3/5083: 1 lock held by kworker/R-wg-cr/5115: #0: ffffffff8e1deb68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x85/0x2f0 kernel/workqueue.c:2729 2 locks held by kworker/R-wg-cr/5119: 2 locks held by kworker/R-wg-cr/5121: 2 locks held by kworker/R-wg-cr/5123: 2 locks held by kworker/R-wg-cr/5126: 1 lock held by kworker/R-wg-cr/5129: #0: ffffffff8e1deb68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: worker_detach_from_pool+0x85/0x2f0 kernel/workqueue.c:2729 2 locks held by kworker/1:4/5132: 2 locks held by kworker/1:6/5134: 4 locks held by kworker/1:7/5135: 3 locks held by kworker/0:7/5177: #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329 #1: ffffc9000436fd00 ((linkwatch_work).work ){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline] ){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329 #2: ffffffff8f5d8248 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276 4 locks held by kworker/u8:12/5184: #0: ffff888015ed3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline] ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329 #1: ffffc900030c7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline] ffffc900030c7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329 #2: ffffffff8f5cba10 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594 #3: ffff888064201408 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_destruct+0x110/0x2e0 drivers/net/wireguard/device.c:249 3 locks held by kworker/u8:13/6207: #0: ffff88802a5bf948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline] ffff88802a5bf948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329 #1: ffffc90014857d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline] #1: ffffc90014857d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329 #2: ffffffff8f5d8248 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4733 2 locks held by kworker/R-wg-cr/9666: 4 locks held by kworker/R-wg-cr/9675: 1 lock held by kworker/R-wg-cr/9676: 4 locks held by syz-executor/10526: #0: ffff88807d264420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2854 [inline] ffff88807d264420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 fs/read_write.c:586 #1: ffff88807e1cdc88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 fs/kernfs/file.c:325 #2: ffff888021c03968 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 fs/kernfs/file.c:326 #3: ffffffff8eee5888 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216 8 locks held by syz-executor/10529: #0: ffff88807d264420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2854 [inline] #0: ffff88807d264420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x227/0xc90 fs/read_write.c:586 #1: ffff88806b1bac88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1eb/0x500 fs/kernfs/file.c:325 #2: ffff888021c03968 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20f/0x500 fs/kernfs/file.c:326 #3: ffffffff8eee5888 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216 #4: ffff8880621bd0e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #4: ffff8880621bd0e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1093 [inline] #4: ffff8880621bd0e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xce/0x7c0 drivers/base/dd.c:1290 #5: ffff8880621bf250 (&devlink->lock_key#6){+.+.}-{3:3}, at: nsim_drv_remove+0x50/0x160 drivers/net/netdevsim/dev.c:1672 #6: ffffffff8f5d8248 (rtnl_mutex){+.+.}-{3:3}, at: nsim_destroy+0x71/0x5c0 drivers/net/netdevsim/netdev.c:773 #7: ffffffff8e3392f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline] ffffffff8e3392f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:939 1 lock held by kworker/R-wg-cr/10567: #0: ffffffff8e1deb68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3335 [inline] ffffffff8e1deb68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0xda0 kernel/workqueue.c:3461 1 lock held by kworker/R-wg-cr/10568: #0: ffffffff8e1deb68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3335 [inline] (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0xda0 kernel/workqueue.c:3461 1 lock held by kworker/R-wg-cr/10569: #0: ffffffff8e1deb68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3335 [inline] #0: ffffffff8e1deb68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0xda0 kernel/workqueue.c:3461 1 lock held by kworker/R-wg-cr/10570: #0: ffffffff8e1deb68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3335 [inline] #0: ffffffff8e1deb68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0xda0 kernel/workqueue.c:3461 1 lock held by kworker/R-wg-cr/10571: #0: ffffffff8e1deb68 (wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3335 [inline] (wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0xda0 kernel/workqueue.c:3461 1 lock held by kworker/R-wg-cr/10572: #0: ffffffff8e1deb68 ( wq_pool_attach_mutex){+.+.}-{3:3}, at: set_pf_worker kernel/workqueue.c:3335 [inline] wq_pool_attach_mutex){+.+.}-{3:3}, at: rescuer_thread+0xd0/0xda0 kernel/workqueue.c:3461 2 locks held by syz-executor/10575: #0: ffffffff8f5cba10 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5d8248 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1159 2 locks held by syz-executor/10579: #0: ffffffff8f5cba10 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5d8248 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1159 2 locks held by syz-executor/10582: #0: ffffffff8f5cba10 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5d8248 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1159 2 locks held by syz-executor/10584: #0: ffffffff8f5cba10 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5d8248 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1159 2 locks held by syz-executor/10586: #0: ffffffff8f5cba10 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c6/0x7b0 net/core/net_namespace.c:504 #1: ffffffff8f5d8248 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x20e/0x710 net/ipv4/ip_tunnel.c:1159 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc7-syzkaller-00231-ge091caf99f3a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xfde/0x1020 kernel/hung_task.c:379 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored NMI backtrace for cpu 1 CPU: 1 PID: 1023 Comm: kworker/1:1H Not tainted 6.10.0-rc7-syzkaller-00231-ge091caf99f3a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Workqueue: kblockd blk_mq_requeue_work RIP: 0010:vsnprintf+0x156/0x1da0 lib/vsprintf.c:2780 Code: 24 30 48 83 c0 10 48 89 44 24 20 4c 89 74 24 28 4c 89 ff 4c 8d a4 24 80 00 00 00 4c 89 e6 e8 61 1c 00 00 89 c3 48 8b 44 24 38 <42> 80 3c 28 00 74 08 4c 89 e7 e8 bb d7 81 f6 48 63 db 4d 8d 24 1f RSP: 0018:ffffc90000a17300 EFLAGS: 00000002 RAX: 1ffff92000142e70 RBX: 0000000000000001 RCX: ffff888021d98000 RDX: 0000000080010102 RSI: 0000000000000025 RDI: 0000000000000000 RBP: ffffc90000a173f0 R08: ffffffff8b76ef38 R09: ffffffff8b76ec1a R10: 0000000000000002 R11: ffff888021d98000 R12: ffffc90000a17380 R13: dffffc0000000000 R14: ffff0a0000000509 R15: ffffffff8bcb8045 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020044000 CR3: 00000000241ea000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sprintf+0xda/0x120 lib/vsprintf.c:3028 print_time kernel/printk/printk.c:1330 [inline] info_print_prefix+0x16b/0x310 kernel/printk/printk.c:1356 record_print_text kernel/printk/printk.c:1405 [inline] printk_get_next_message+0x6da/0xbe0 kernel/printk/printk.c:2840 console_emit_next_record kernel/printk/printk.c:2880 [inline] console_flush_all+0x410/0xfd0 kernel/printk/printk.c:2979 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3048 vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2348 dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4909 dev_printk_emit+0xdd/0x120 drivers/base/core.c:4920 _dev_warn+0x122/0x170 drivers/base/core.c:4976 usb_rx_callback_intf0+0x15a/0x1a0 drivers/media/rc/imon.c:1771 __usb_hcd_giveback_urb+0x42c/0x6e0 drivers/usb/core/hcd.c:1650 dummy_timer+0x830/0x45d0 drivers/usb/gadget/udc/dummy_hcd.c:1987 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline] RIP: 0010:write_comp_data kernel/kcov.c:236 [inline] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x26/0x90 kernel/kcov.c:304 Code: 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 65 48 8b 14 25 80 d4 03 00 65 8b 05 00 a9 6d 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 5b <83> ba 1c 16 00 00 00 74 52 8b 82 f8 15 00 00 83 f8 03 75 47 48 8b RSP: 0018:ffffc90000a186d0 EFLAGS: 00000206 RAX: 0000000080000101 RBX: ffffc90000a18748 RCX: ffffffff9101d000 RDX: ffff888021d98000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff8140ee98 R09: ffffffff8141095f R10: 0000000000000003 R11: ffff888021d98000 R12: ffff888021d98000 R13: ffffffff8181dd10 R14: dffffc0000000000 R15: 1ffff920001430e9 unwind_get_return_address+0x68/0xc0 arch/x86/kernel/unwind_orc.c:369 arch_stack_walk+0x125/0x1b0 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579 poison_slab_object+0xe0/0x150 mm/kasan/common.c:240 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2196 [inline] slab_free mm/slub.c:4438 [inline] kmem_cache_free+0x145/0x350 mm/slub.c:4513 mac80211_hwsim_beacon_tx+0x3bf/0x850 drivers/net/wireless/virtual/mac80211_hwsim.c:2306 __iterate_interfaces+0x223/0x4c0 net/mac80211/util.c:772 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:808 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2336 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1753 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1770 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202 Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 4a 08 ea f5 48 89 df e8 e2 4a eb f5 e8 fd 05 15 f6 fb bf 01 00 00 00 f2 17 dd f5 65 8b 05 53 4f 7b 74 85 c0 74 06 5b c3 cc cc cc cc RSP: 0018:ffffc900040cfbb0 EFLAGS: 00000282 RAX: 5ba627b5dc3f3800 RBX: ffff8880b953e2e0 RCX: ffffffff9476e603 RDX: dffffc0000000000 RSI: ffffffff8bcabb40 RDI: 0000000000000001 RBP: ffffc900040cfdc0 R08: ffffffff8fac686f R09: 1ffffffff1f58d0d R10: dffffc0000000000 R11: fffffbfff1f58d0e R12: dffffc0000000000 R13: ffff8880203bd680 R14: ffff8880166a0808 R15: 0000000001c00000 process_one_work kernel/workqueue.c:3217 [inline] process_scheduled_works+0x848/0x1830 kernel/workqueue.c:3329 worker_thread+0x86d/0xd50 kernel/workqueue.c:3409 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored imon 4-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored