rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2659 jiffies s: 23917 root: 0x2/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: cdc_wdm 6-1:1.0: nonzero urb status received: -71 NMI backtrace for cpu 1 CPU: 1 PID: 31015 Comm: modprobe Not tainted 6.6.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 RIP: 0010:check_kcov_mode kernel/kcov.c:175 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x35/0x70 kernel/kcov.c:207 Code: 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 00 ab 03 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 3c 15 00 00 85 c0 74 2b <8b> 82 18 15 00 00 83 f8 02 75 20 48 8b 8a 20 15 00 00 8b 92 1c 15 RSP: 0018:ffffc90000198048 EFLAGS: 00000002 RAX: 0000000000000001 RBX: ffffffff86889920 RCX: 0000000000000100 RDX: ffff888111f9d700 RSI: ffffffff86406f85 RDI: 0000000000000001 RBP: ffffc90000198308 R08: 0000000000000001 R09: 0000000000000007 R10: 0000000000000000 R11: 00000000007aac90 R12: ffffffff86889921 R13: 0000000000000001 R14: ffffc90000198138 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fdc99e56ba8 CR3: 00000001464e4000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vsnprintf+0x6f5/0x1870 lib/vsprintf.c:2777 sprintf+0xcd/0x100 lib/vsprintf.c:3022 print_time kernel/printk/printk.c:1327 [inline] info_print_prefix+0x258/0x350 kernel/printk/printk.c:1353 record_print_text+0x143/0x410 kernel/printk/printk.c:1402 printk_get_next_message+0x2ca/0x7c0 kernel/printk/printk.c:2842 console_emit_next_record kernel/printk/printk.c:2877 [inline] console_flush_all+0x3c0/0xfb0 kernel/printk/printk.c:2966 console_unlock+0x10c/0x260 kernel/printk/printk.c:3035 vprintk_emit+0x17f/0x5f0 kernel/printk/printk.c:2307 dev_vprintk_emit drivers/base/core.c:4849 [inline] dev_printk_emit+0xfb/0x140 drivers/base/core.c:4860 __dev_printk+0xf5/0x270 drivers/base/core.c:4872 _dev_err+0xe5/0x120 drivers/base/core.c:4915 wdm_int_callback+0x10f/0xaa0 drivers/usb/class/cdc-wdm.c:269 __usb_hcd_giveback_urb+0x359/0x5c0 drivers/usb/core/hcd.c:1650 usb_hcd_giveback_urb+0x389/0x430 drivers/usb/core/hcd.c:1733 dummy_timer+0x1415/0x35f0 drivers/usb/gadget/udc/dummy_hcd.c:1987 call_timer_fn+0x19e/0x580 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1751 [inline] __run_timers+0x764/0xb10 kernel/time/timer.c:2022 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2035 __do_softirq+0x20b/0x94e kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xa7/0x110 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x8e/0xb0 arch/x86/kernel/apic/apic.c:1074 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline] RIP: 0010:write_comp_data+0x21/0x90 kernel/kcov.c:236 Code: 2e 0f 1f 84 00 00 00 00 00 65 8b 05 31 3f b6 7e 49 89 f1 89 c6 49 89 d2 81 e6 00 01 00 00 49 89 f8 65 48 8b 14 25 00 ab 03 00 00 01 ff 00 74 0e 85 f6 74 59 8b 82 3c 15 00 00 85 c0 74 4f 8b RSP: 0018:ffffc9000787f220 EFLAGS: 00000246 RAX: 0000000080000001 RBX: 0000000000000001 RCX: ffffffff811394aa RDX: ffff888111f9d700 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffffffff8685ae80 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000003 R15: 0000000000000001 __sanitizer_cov_trace_switch+0x54/0x90 kernel/kcov.c:341 unwind_next_frame+0xeaa/0x2390 arch/x86/kernel/unwind_orc.c:641 arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 __kasan_slab_alloc+0x66/0x70 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook mm/slab.h:762 [inline] slab_alloc_node mm/slub.c:3478 [inline] slab_alloc mm/slub.c:3486 [inline] __kmem_cache_alloc_lru mm/slub.c:3493 [inline] kmem_cache_alloc+0x182/0x370 mm/slub.c:3502 mt_alloc_one lib/maple_tree.c:160 [inline] mas_alloc_nodes+0x182/0x830 lib/maple_tree.c:1249 mas_node_count_gfp+0x105/0x130 lib/maple_tree.c:1329 mas_preallocate+0x2d7/0xda0 lib/maple_tree.c:5467 vma_iter_prealloc mm/internal.h:1077 [inline] __split_vma+0x435/0x1040 mm/mmap.c:2355 do_vmi_align_munmap.constprop.0+0x353/0x1560 mm/mmap.c:2477 do_vmi_munmap+0x202/0x440 mm/mmap.c:2623 mmap_region+0x180/0x26b0 mm/mmap.c:2673 do_mmap+0x893/0xef0 mm/mmap.c:1354 vm_mmap_pgoff+0x1a8/0x3b0 mm/util.c:546 ksys_mmap_pgoff+0x422/0x5b0 mm/mmap.c:1400 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:93 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline] __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:86 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fdc9a0fdb74 Code: 63 08 44 89 e8 5b 41 5c 41 5d c3 41 89 ca 41 f7 c1 ff 0f 00 00 74 0c c7 05 f5 46 01 00 16 00 00 00 eb 17 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 0c f7 d8 89 05 dc 46 01 00 48 83 c8 ff c3 0f RSP: 002b:00007fffbe4fb9c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fffbe4fba08 RCX: 00007fdc9a0fdb74 RDX: 0000000000000005 RSI: 000000000002c000 RDI: 00007fdc99de2000 RBP: 00007fffbe4fbd60 R08: 0000000000000000 R09: 0000000000002000 R10: 0000000000000812 R11: 0000000000000246 R12: 00007fdc9a0e1570 R13: 00007fffbe4fbde8 R14: 0000000000001fd8 R15: 0000000000000000 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: nonzero urb status received: -71 cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes cdc_wdm 6-1:1.0: wdm_int_callback - usb_submit_urb failed with result -19 usb 5-1: USB disconnect, device number 115