rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-...!: (1 GPs behind) idle=9924/1/0x4000000000000000 softirq=9863/9875 fqs=324
rcu: (t=10502 jiffies g=8481 q=836 ncpus=2)
rcu: rcu_preempt kthread starved for 9853 jiffies! g8481 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:27152 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0xee1/0x59f0 kernel/sched/core.c:6710
schedule+0xe7/0x1b0 kernel/sched/core.c:6786
schedule_timeout+0x157/0x2c0 kernel/time/timer.c:2167
rcu_gp_fqs_loop+0x1ec/0xa50 kernel/rcu/tree.c:1609
rcu_gp_kthread+0x249/0x380 kernel/rcu/tree.c:1808
kthread+0x33a/0x430 kernel/kthread.c:389
ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x1b/0x20 drivers/acpi/processor_idle.c:112
CPU: 1 PID: 5255 Comm: modprobe Not tainted 6.5.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:200
Code: b6 ef 98 02 66 0f 1f 44 00 00 f3 0f 1e fa 48 8b be b0 01 00 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1e fa 65 8b 05 cd 48 7d 7e 89 c1 48 8b 34 24 81 e1 00 01 00
RSP: 0018:ffffc900001e01e8 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 28a861e62bcf0340 RCX: ffffffff885999f2
RDX: ffff8880266a0000 RSI: 0000000000000100 RDI: 0000000000000006
RBP: ffff88801f177000 R08: 0000000000000006 R09: 28a861e62bcf0340
R10: 28a861e5abcf0380 R11: 0000000000000002 R12: 28a861e5abcf0341
R13: 0000000000000000 R14: dffffc0000000000 R15: 28a861e5abcf0380
FS: 00007f9520abe380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000059415000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ktime_compare include/linux/ktime.h:99 [inline]
ktime_after include/linux/ktime.h:113 [inline]
find_entry_to_transmit+0x40e/0x9f0 net/sched/sch_taprio.c:353
get_packet_txtime net/sched/sch_taprio.c:508 [inline]
taprio_enqueue_one+0x881/0x1640 net/sched/sch_taprio.c:577
taprio_enqueue+0x239/0x7e0 net/sched/sch_taprio.c:658
dev_qdisc_enqueue+0x3f/0x230 net/core/dev.c:3732
__dev_xmit_skb net/core/dev.c:3821 [inline]
__dev_queue_xmit+0x2202/0x3f20 net/core/dev.c:4169
dev_queue_xmit include/linux/netdevice.h:3088 [inline]
neigh_hh_output include/net/neighbour.h:528 [inline]
neigh_output include/net/neighbour.h:542 [inline]
ip6_finish_output2+0x1083/0x1b20 net/ipv6/ip6_output.c:135
__ip6_finish_output net/ipv6/ip6_output.c:196 [inline]
ip6_finish_output+0x485/0x11d0 net/ipv6/ip6_output.c:207
NF_HOOK_COND include/linux/netfilter.h:292 [inline]
ip6_output+0x243/0x890 net/ipv6/ip6_output.c:228
dst_output include/net/dst.h:458 [inline]
NF_HOOK.constprop.0+0xfd/0x540 include/linux/netfilter.h:303
ndisc_send_skb+0x9e8/0x1430 net/ipv6/ndisc.c:508
ndisc_send_rs+0x133/0x690 net/ipv6/ndisc.c:718
addrconf_rs_timer+0x412/0x840 net/ipv6/addrconf.c:3935
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
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:preempt_count_add+0x2d/0x140 kernel/sched/core.c:5856
Code: fa 48 c7 c0 c0 85 13 92 55 48 ba 00 00 00 00 00 fc ff df 48 89 c1 53 83 e0 07 89 fb 48 c1 e9 03 83 c0 03 65 01 3d 7b e8 a9 7e <0f> b6 14 11 38 d0 7c 08 84 d2 0f 85 d4 00 00 00 8b 15 9d b4 b9 10
RSP: 0018:ffffc9000565f580 EFLAGS: 00000282
RAX: 0000000000000003 RBX: 0000000000000001 RCX: 1ffffffff24270b8
RDX: dffffc0000000000 RSI: ffffffff81c9fcf2 RDI: 0000000000000001
RBP: ffffc9000565f650 R08: ffffc9000565f63c R09: ffffffff8f3d98d8
R10: ffffc9000565f608 R11: 000000000000c9f0 R12: ffffffff817445d0
R13: ffffc9000565f608 R14: 0000000000000000 R15: ffff8880266a0000
unwind_next_frame+0xad/0x2020 arch/x86/kernel/unwind_orc.c:479
arch_stack_walk+0x8b/0xf0 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+0x81/0x90 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:186 [inline]
slab_post_alloc_hook+0x5a/0xd0 mm/slab.h:762
kmem_cache_alloc_bulk+0x40c/0x7c0 mm/slub.c:4048
mt_alloc_bulk lib/maple_tree.c:164 [inline]
mas_alloc_nodes+0x39c/0x830 lib/maple_tree.c:1304
mas_node_count_gfp lib/maple_tree.c:1362 [inline]
mas_preallocate+0x2b1/0x370 lib/maple_tree.c:5547
vma_iter_prealloc mm/internal.h:1032 [inline]
__split_vma+0x1c7/0x830 mm/mmap.c:2348
split_vma+0xc8/0x110 mm/mmap.c:2413
mprotect_fixup+0x785/0xbf0 mm/mprotect.c:649
do_mprotect_pkey+0x852/0xd60 mm/mprotect.c:817
__do_sys_mprotect mm/mprotect.c:838 [inline]
__se_sys_mprotect mm/mprotect.c:835 [inline]
__x64_sys_mprotect+0x78/0xb0 mm/mprotect.c:835
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: 0033:0x7f9520ddcbb7
Code: 00 00 00 b8 0b 00 00 00 0f 05 48 3d 01 f0 ff ff 73 01 c3 48 8d 0d b9 46 01 00 f7 d8 89 01 48 83 c8 ff c3 b8 0a 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8d 0d 99 46 01 00 f7 d8 89 01 48 83
RSP: 002b:00007ffdac454d18 EFLAGS: 00000206 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 00007f9520df0ab0 RCX: 00007f9520ddcbb7
RDX: 0000000000000001 RSI: 0000000000002000 RDI: 00007f9520dee000
RBP: 00007ffdac454e30 R08: 00007ffdac450000 R09: 00007f9520dbf5c0
R10: 00007f9520dc1858 R11: 0000000000000206 R12: 00007f9520df0ab0
R13: 00007f9520de4eda R14: 00007f9520def9f0 R15: 00007f9520deff40