rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P19796/1:b..l P19797/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=128309, q=217 ncpus=2)
task:rm state:R running task stack:23680 pid:19797 tgid:19797 ppid:19765 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6851
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:check_kcov_mode kernel/kcov.c:184 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x31/0x70 kernel/kcov.c:216
Code: 24 65 48 8b 0c 25 00 d7 03 00 65 8b 15 00 60 70 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 1c 16 00 00 00 74 2c <8b> 91 f8 15 00 00 83 fa 02 75 21 48 8b 91 00 16 00 00 48 8b 32 48
RSP: 0018:ffffc9000fb176f8 EFLAGS: 00000246
RAX: ffffffff8ba326ff RBX: 000000000000000b RCX: ffff8880242cbc00
RDX: 0000000000000000 RSI: 000000000000000b RDI: 0000000000000000
RBP: ffffc9000fb178f0 R08: ffffffff8ba326ed R09: ffffffff8ba32552
R10: 0000000000000004 R11: ffff8880242cbc00 R12: 0000000000000001
R13: 00007f9911ff3fff R14: 000000000000000f R15: 00007f9911ff7fff
mas_validate_limits lib/maple_tree.c:7471 [inline]
mt_validate+0xeff/0x4aa0 lib/maple_tree.c:7590
validate_mm+0xe7/0x530 mm/mmap.c:329
mmap_region+0x1a61/0x2090 mm/mmap.c:3071
do_mmap+0x8f9/0x1010 mm/mmap.c:1468
vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588
ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1514
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9911fe2b74
RSP: 002b:00007ffcc8d822c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007ffcc8d82308 RCX: 00007f9911fe2b74
RDX: 0000000000000005 RSI: 0000000000014000 RDI: 00007f9911d1a000
RBP: 00007ffcc8d826a0 R08: 0000000000000003 R09: 0000000000007000
R10: 0000000000000812 R11: 0000000000000246 R12: 00007f9911fbefc0
R13: 00007ffcc8d82728 R14: 0000000000006f68 R15: 0000000000000000
task:syz.0.3789 state:R running task stack:22680 pid:19796 tgid:19795 ppid:18211 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6708
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6732
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
vprintk_emit+0x690/0x770 kernel/printk/printk.c:2349
_printk+0xd5/0x120 kernel/printk/printk.c:2373
validate_nla lib/nlattr.c:414 [inline]
__nla_validate_parse+0x1af9/0x3090 lib/nlattr.c:635
__nla_validate+0x3e/0x60 lib/nlattr.c:677
__nla_validate_nested include/net/netlink.h:1999 [inline]
nla_validate_nested_deprecated include/net/netlink.h:2017 [inline]
ctnetlink_parse_tuple_proto net/netfilter/nf_conntrack_netlink.c:1379 [inline]
ctnetlink_parse_tuple_filter+0x9bb/0x10b0 net/netfilter/nf_conntrack_netlink.c:1478
ctnetlink_parse_tuple net/netfilter/nf_conntrack_netlink.c:1510 [inline]
ctnetlink_new_conntrack+0x210/0x2240 net/netfilter/nf_conntrack_netlink.c:2412
nfnetlink_rcv_msg+0xbec/0x1180 net/netfilter/nfnetlink.c:302
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550
nfnetlink_rcv+0x297/0x2a90 net/netfilter/nfnetlink.c:664
netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
netlink_unicast+0x7f0/0x990 net/netlink/af_netlink.c:1357
netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
____sys_sendmsg+0x525/0x7d0 net/socket.c:2597
___sys_sendmsg net/socket.c:2651 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f71c71799f9
RSP: 002b:00007f71c7ee2038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f71c7315f80 RCX: 00007f71c71799f9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 00007f71c71e78ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f71c7315f80 R15: 00007ffe412e2d08
rcu: rcu_preempt kthread starved for 10567 jiffies! g128309 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:24912 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2034
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2236
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
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.11.0-rc3-syzkaller-00010-g6b4aa469f049 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline]
RIP: 0010:acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:112
Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 00 d7 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d e5 92 9b 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc900001a7d08 EFLAGS: 00000246
RAX: ffff888017af0000 RBX: ffff88801bac5864 RCX: 0000000005903069
RDX: 0000000000000001 RSI: ffff88801bac5800 RDI: ffff88801bac5864
RBP: 000000000003a678 R08: ffff8880b9337c7b R09: 1ffff11017266f8f
R10: dffffc0000000000 R11: ffffffff8badac90 R12: ffff88801b310800
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8eecaa20
FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f55b6b10000 CR3: 000000007c942000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:702
cpuidle_enter_state+0x112/0x480 drivers/cpuidle/cpuidle.c:267
cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:388
call_cpuidle kernel/sched/idle.c:155 [inline]
cpuidle_idle_call kernel/sched/idle.c:230 [inline]
do_idle+0x375/0x5d0 kernel/sched/idle.c:326
cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:424
start_secondary+0x100/0x100 arch/x86/kernel/smpboot.c:313
common_startup_64+0x13e/0x147