rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P3733/1:b..l P5729/1:b..l
(detected by 0, t=10502 jiffies, g=16881, q=56 ncpus=2)
task:modprobe state:R running task stack:23880 pid:5729 ppid:3963 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
irqentry_exit+0x53/0x80 kernel/entry/common.c:439
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:mas_validate_limits lib/maple_tree.c:7114 [inline]
RIP: 0010:mt_validate+0x1ff7/0x5ad0 lib/maple_tree.c:7238
Code: 08 00 00 41 0f b6 5d 00 44 0f b6 64 24 20 89 df 44 89 e6 e8 cb 99 08 f7 44 38 e3 48 8b 44 24 28 4a 8d 1c e0 48 0f 46 5c 24 40 <48> 89 d8 48 c1 e8 03 42 80 3c 30 00 4c 8b 6c 24 18 74 08 48 89 df
RSP: 0018:ffffc9000a9073c0 EFLAGS: 00000202
RAX: ffff888076cb9208 RBX: ffff888076cb9240 RCX: 000000008c07b401
RDX: ffff888015f3bb80 RSI: 0000000000000007 RDI: 000000000000000f
RBP: ffffc9000a9075b0 R08: ffffffff8a81f9e5 R09: ffffffff8a81f8c4
R10: 0000000000000003 R11: ffff888015f3bb80 R12: 0000000000000007
R13: ffffffff8c07b421 R14: dffffc0000000000 R15: 0000000000000008
validate_mm_mt+0x165/0x670 mm/mmap.c:295
__split_vma+0x32/0x530 mm/mmap.c:2344
do_mas_align_munmap+0x953/0x15f0 mm/mmap.c:2491
do_mas_munmap+0x246/0x2b0 mm/mmap.c:2640
mmap_region+0x8e6/0x1fa0 mm/mmap.c:2688
do_mmap+0x8c5/0xf60 mm/mmap.c:1425
vm_mmap_pgoff+0x1ca/0x2d0 mm/util.c:520
ksys_mmap_pgoff+0x4f5/0x6d0 mm/mmap.c:1471
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f9d4b64cb74
RSP: 002b:00007ffd9a3d41a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007ffd9a3d4258 RCX: 00007f9d4b64cb74
RDX: 0000000000000003 RSI: 0000000000002000 RDI: 00007f9d4b3b7000
RBP: 00007ffd9a3d4580 R08: 0000000000000000 R09: 000000000000b000
R10: 0000000000000812 R11: 0000000000000246 R12: 00007f9d4b62fac0
R13: 00007ffd9a3d4608 R14: 000000000000b278 R15: 0000000000000000
task:kworker/u4:10 state:R running task stack:25048 pid:3733 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
irqentry_exit+0x53/0x80 kernel/entry/common.c:439
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:lock_acquire+0x26f/0x5a0 kernel/locking/lockdep.c:5666
Code: 2b 00 74 08 4c 89 f7 e8 4f ab 77 00 f6 44 24 61 02 0f 85 84 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:ffffc900048e7a80 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200091cf5c RCX: 1ffff9200091cefc
RDX: dffffc0000000000 RSI: ffffffff8aec13c0 RDI: ffffffff8b3d4660
RBP: ffffc900048e7be0 R08: dffffc0000000000 R09: fffffbfff2093a45
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200091cf58
R13: dffffc0000000000 R14: ffffc900048e7ae0 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
rcu_read_lock include/linux/rcupdate.h:791 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xe8/0x610 net/batman-adv/network-coding.c:719
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
rcu: rcu_preempt kthread starved for 10563 jiffies! g16881 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:26712 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.1.94-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:22 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline]
RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:113 [inline]
RIP: 0010:acpi_idle_do_entry+0x10f/0x340 drivers/acpi/processor_idle.c:572
Code: 43 f5 f6 48 83 e3 08 0f 85 0b 01 00 00 4c 8d 74 24 20 e8 a4 02 fc f6 0f 1f 44 00 00 e8 fa 3f f5 f6 0f 00 2d e3 10 b2 00 fb f4 <4c> 89 f3 48 c1 eb 03 42 80 3c 3b 00 74 08 4c 89 f7 e8 ab c0 4c f7
RSP: 0018:ffffffff8ce07b20 EFLAGS: 000002d3
RAX: ffffffff8a955356 RBX: 0000000000000000 RCX: ffffffff8cebd800
RDX: 0000000000000000 RSI: ffffffff8aec0240 RDI: ffffffff8b3d4660
RBP: ffffffff8ce07bb0 R08: ffffffff8a955338 R09: fffffbfff19d7b01
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff19c0f64
R13: ffff888015f91804 R14: ffffffff8ce07b40 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000073ca8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
acpi_idle_enter+0x352/0x4f0 drivers/acpi/processor_idle.c:709
cpuidle_enter_state+0x516/0xf80 drivers/cpuidle/cpuidle.c:239
cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:356
call_cpuidle kernel/sched/idle.c:155 [inline]
cpuidle_idle_call kernel/sched/idle.c:236 [inline]
do_idle+0x3ce/0x680 kernel/sched/idle.c:303
cpu_startup_entry+0x3d/0x60 kernel/sched/idle.c:401
rest_init+0x2da/0x300 init/main.c:733
arch_call_rest_init+0xa/0xa init/main.c:893
start_kernel+0x496/0x53f init/main.c:1140
secondary_startup_64_no_verify+0xcf/0xdb
vkms_vblank_simulate: vblank timer overrun