rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2647 jiffies s: 1805 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5769 Comm: syz-executor336 Not tainted 6.5.0-rc3-syzkaller-00020-gaf2e19389c2c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x31/0x70 kernel/kcov.c:207
Code: cd 48 7d 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 80 b9 03 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 04 16 00 00 <85> c0 74 2b 8b 82 e0 15 00 00 83 f8 02 75 20 48 8b 8a e8 15 00 00
RSP: 0018:ffffc900001e0bb8 EFLAGS: 00000206
RAX: 0000000000000000 RBX: ffffc900107e6e50 RCX: 0000000000000100
RDX: ffff888023ce3b80 RSI: ffffffff885861d1 RDI: 0000000000000007
RBP: ffff88807b3afb00 R08: 0000000000000007 R09: 00051eb851eb851e
R10: fffffff0a3da8872 R11: 0000000000094000 R12: fffffff0a3da8872
R13: 0000000000000000 R14: 00051eb851eb851e R15: 0000000000000000
FS:  00007f7e192ad6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7e19342fb8 CR3: 000000008f6c5000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 pie_calculate_probability+0x5a1/0x850 net/sched/sch_pie.c:369
 fq_pie_timer+0x1da/0x4f0 net/sched/sch_fq_pie.c:387
 call_timer_fn+0x1a0/0x580 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+0x218/0x965 kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1109
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:133 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:178 [inline]
RIP: 0010:kasan_check_range+0xd4/0x190 mm/kasan/generic.c:187
Code: 83 38 00 74 ed 48 8d 50 08 eb 0d 48 83 c0 01 48 39 c2 0f 84 89 00 00 00 80 38 00 74 ee 48 89 c2 b8 01 00 00 00 48 85 d2 74 1e <41> 83 e2 07 49 39 d1 75 0a 45 3a 11 b8 01 00 00 00 7c 0b 44 89 c2
RSP: 0018:ffffc900031cf1e0 EFLAGS: 00000286
RAX: 0000000000000001 RBX: fffff52000639e45 RCX: ffffffff8167f0e1
RDX: fffff52000639e44 RSI: 0000000000000004 RDI: ffffc900031cf220
RBP: fffff52000639e44 R08: 0000000000000001 R09: fffff52000639e44
R10: ffffc900031cf223 R11: 0000000000071de5 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000700 R15: ffff88813fffa000
 instrument_atomic_read_write include/linux/instrumented.h:96 [inline]
 atomic_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1295 [inline]
 queued_spin_trylock include/asm-generic/qspinlock.h:97 [inline]
 do_raw_spin_trylock+0xb1/0x180 kernel/locking/spinlock_debug.c:122
 __raw_spin_trylock include/linux/spinlock_api_smp.h:89 [inline]
 _raw_spin_trylock+0x1b/0x70 kernel/locking/spinlock.c:138
 spin_trylock include/linux/spinlock.h:361 [inline]
 free_unref_page+0x17f/0x3b0 mm/page_alloc.c:2464
 vfree+0x181/0x7a0 mm/vmalloc.c:2842
 kvfree+0x33/0x50 mm/util.c:648
 __qdisc_destroy+0xc4/0x450 net/sched/sch_generic.c:1063
 qdisc_put+0xd1/0xf0 net/sched/sch_generic.c:1090
 notify_and_destroy net/sched/sch_api.c:1047 [inline]
 qdisc_graft+0x1122/0x1680 net/sched/sch_api.c:1144
 tc_modify_qdisc+0xcd2/0x1bf0 net/sched/sch_api.c:1731
 rtnetlink_rcv_msg+0x439/0xd30 net/core/rtnetlink.c:6424
 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2549
 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]
 netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365
 netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1914
 sock_sendmsg_nosec net/socket.c:725 [inline]
 sock_sendmsg+0xd9/0x180 net/socket.c:748
 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2494
 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2548
 __sys_sendmsg+0x117/0x1e0 net/socket.c:2577
 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: 0033:0x7f7e192ec8e9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7e192ad238 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7e19376328 RCX: 00007f7e192ec8e9
RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000003
RBP: 00007f7e19376320 R08: 00000000ffffffff R09: 00007f7e192ad6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7e1937632c
R13: 0000000000000011 R14: 00007fff8da566f0 R15: 00007fff8da567d8
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.912 msecs