rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P35/2:b..l P10811/3:b..l P10795/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=50165, q=550 ncpus=2)
task:syz.0.1386 state:R running task stack:23584 pid:10795 tgid:10792 ppid:8431 flags:0x00004002
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:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5763
Code: 2b 00 74 08 4c 89 f7 e8 2a cd 87 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc90004216fa0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000842e00 RCX: 64551465c3258100
RDX: dffffc0000000000 RSI: ffffffff8beae6e0 RDI: ffffffff8c3f8980
RBP: ffffc900042170f0 R08: ffffffff934ee807 R09: 1ffffffff269dd00
R10: dffffc0000000000 R11: fffffbfff269dd01 R12: 1ffff92000842dfc
R13: dffffc0000000000 R14: ffffc90004217000 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
rcu_read_lock include/linux/rcupdate.h:838 [inline]
get_mem_cgroup_from_mm+0x55/0x2a0 mm/memcontrol.c:941
__mem_cgroup_charge+0x16/0x80 mm/memcontrol.c:4435
mem_cgroup_charge include/linux/memcontrol.h:672 [inline]
shmem_alloc_and_add_folio+0x857/0x14e0 mm/shmem.c:1796
shmem_get_folio_gfp+0x8dc/0x2370 mm/shmem.c:2192
shmem_fault+0x252/0x6f0 mm/shmem.c:2392
__do_fault+0x135/0x460 mm/memory.c:4655
do_read_fault mm/memory.c:5061 [inline]
do_fault mm/memory.c:5191 [inline]
do_pte_missing mm/memory.c:3947 [inline]
handle_pte_fault+0x3b24/0x6eb0 mm/memory.c:5522
__handle_mm_fault mm/memory.c:5665 [inline]
handle_mm_fault+0xf70/0x1880 mm/memory.c:5833
faultin_page mm/gup.c:1194 [inline]
__get_user_pages+0x6ec/0x16a0 mm/gup.c:1493
populate_vma_page_range+0x264/0x330 mm/gup.c:1932
__mm_populate+0x27a/0x460 mm/gup.c:2035
mm_populate include/linux/mm.h:3415 [inline]
vm_mmap_pgoff+0x2c3/0x3d0 mm/util.c:593
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: 0033:0x7fd76b5779f9
RSP: 002b:00007fd76c354048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fd76b705f80 RCX: 00007fd76b5779f9
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007fd76b5e58ee R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fd76b705f80 R15: 00007ffca3403ea8
task:modprobe state:R running task stack:25360 pid:10811 tgid:10811 ppid:1286 flags:0x00000000
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
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
filemap_map_pages+0x1707/0x1e70 mm/filemap.c:3655
do_fault_around mm/memory.c:5019 [inline]
do_read_fault mm/memory.c:5052 [inline]
do_fault mm/memory.c:5191 [inline]
do_pte_missing mm/memory.c:3947 [inline]
handle_pte_fault+0x39aa/0x6eb0 mm/memory.c:5522
__handle_mm_fault mm/memory.c:5665 [inline]
handle_mm_fault+0xf70/0x1880 mm/memory.c:5833
do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x459/0x8c0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f0376e8a636
RSP: 002b:00007fff14cdb9d0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00007f0376e90d8a RCX: 0000000000000020
RDX: 00007f0376e9d4b8 RSI: 00007fff14cdba38 RDI: 00007fff14cdbb50
RBP: 0000000000000005 R08: 00007f0376e793c0 R09: 0000002300000007
R10: 00007f0376e8ac40 R11: 000000006fff000a R12: 00007fff14cdbb50
R13: 00007fff14cdcfb4 R14: 00007fff14cdcfb9 R15: 00007f0376e79858
task:kworker/u8:2 state:R running task stack:21136 pid:35 tgid:35 ppid:2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_dad_work
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
__local_bh_enable_ip+0x179/0x200 kernel/softirq.c:389
local_bh_enable include/linux/bottom_half.h:33 [inline]
rcu_read_unlock_bh include/linux/rcupdate.h:908 [inline]
__dev_queue_xmit+0x1763/0x3e90 net/core/dev.c:4450
neigh_output include/net/neighbour.h:542 [inline]
ip6_finish_output2+0xffa/0x1680 net/ipv6/ip6_output.c:137
ip6_finish_output+0x41e/0x810 net/ipv6/ip6_output.c:222
NF_HOOK include/linux/netfilter.h:314 [inline]
ndisc_send_skb+0xab2/0x1380 net/ipv6/ndisc.c:511
addrconf_dad_completed+0x76c/0xcd0 net/ipv6/addrconf.c:4360
addrconf_dad_work+0xdc2/0x16f0
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd40 kernel/workqueue.c:3390
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: rcu_preempt kthread starved for 10608 jiffies! g50165 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:25816 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-rc1-syzkaller-00334-ga5dbd76a8942 #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 cb 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: ffff88801bab2064 RCX: 00000000029ca889
RDX: 0000000000000001 RSI: ffff88801bab2000 RDI: ffff88801bab2064
RBP: 000000000003a678 R08: ffff8880b9337c7b R09: 1ffff11017266f8f
R10: dffffc0000000000 R11: ffffffff8bad6c90 R12: ffff88801d3d0000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8eeca1e0
FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3e3cac CR3: 00000000163b8000 CR4: 00000000003526f0
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