rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2641 jiffies s: 3885 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: 6774 Comm: syz-executor481 Not tainted 6.5.0-rc6-syzkaller-01615-g4025d3e73abd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x31/0x70 kernel/kcov.c:207
Code: ed 98 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: 00000000abcc7711 RCX: 0000000000000100
RDX: ffff8880859a9dc0 RSI: ffffffff885aa376 RDI: 0000000000000007
RBP: ffff8880859a1300 R08: 0000000000000007 R09: 00028f5c28f5c28e
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000064
R13: 0000000000000005 R14: 00000000112e0be8 R15: 0000000000000000
FS:  00007f05167c26c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000080 CR3: 0000000081f4e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 pie_calculate_probability+0x266/0x850 net/sched/sch_pie.c:347
 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:dump_stack_lvl+0x15c/0x1b0 lib/dump_stack.c:108
Code: 63 f7 e8 b7 03 64 f7 e8 72 ae 6a f7 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 30 ff 63 f7 48 85 db 75 37 e8 96 03 64 f7 fb 5b <5d> 41 5c e9 8c 03 64 f7 e8 87 03 64 f7 e8 42 79 13 00 48 89 de 31
RSP: 0018:ffffc9000320f0a0 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 1ffff92000641e1b RCX: 0000000000000000
RDX: ffff8880859a9dc0 RSI: ffffffff8a221cfa RDI: 0000000000000007
RBP: ffffffff8baffdc0 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8880859a9dc0
 warn_alloc+0x24a/0x3a0 mm/page_alloc.c:3299
 __vmalloc_area_node mm/vmalloc.c:3125 [inline]
 __vmalloc_node_range+0x1027/0x1540 mm/vmalloc.c:3316
 kvmalloc_node+0x14b/0x1a0 mm/util.c:629
 kvmalloc include/linux/slab.h:720 [inline]
 kvmalloc_array include/linux/slab.h:738 [inline]
 kvcalloc include/linux/slab.h:743 [inline]
 fq_pie_init+0x555/0x8f0 net/sched/sch_fq_pie.c:429
 qdisc_create+0x4f7/0x10a0 net/sched/sch_api.c:1326
 tc_modify_qdisc+0x4a4/0x1bf0 net/sched/sch_api.c:1720
 rtnetlink_rcv_msg+0x439/0xd30 net/core/rtnetlink.c:6427
 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2545
 netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline]
 netlink_unicast+0x536/0x810 net/netlink/af_netlink.c:1368
 netlink_sendmsg+0x93c/0xe40 net/netlink/af_netlink.c:1910
 sock_sendmsg_nosec net/socket.c:728 [inline]
 sock_sendmsg+0xd9/0x180 net/socket.c:751
 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2538
 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2592
 __sys_sendmsg+0x117/0x1e0 net/socket.c:2621
 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: 0033:0x7f0516801929
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:00007f05167c2238 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f051688c328 RCX: 00007f0516801929
RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003
RBP: 00007f051688c320 R08: 00000000ffffffff R09: 00007f05167c26c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f051688c32c
R13: 0000000000000011 R14: 00007ffd62de61b0 R15: 00007ffd62de6298
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.788 msecs