rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P24064/1:b..l P1405/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=244393, q=440 ncpus=2)
task:modprobe state:R running task stack:23680 pid:1405 tgid:1405 ppid:2471 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
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_is_held_type+0x13b/0x190
Code: 75 44 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 4c 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 42 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc90009cd7628 EFLAGS: 00000206
RAX: 0f1d5335105d8700 RBX: 0000000000000001 RCX: ffff88805d421e00
RDX: 0000000000000000 RSI: ffffffff8bcaccc0 RDI: ffffffff8c1f1780
RBP: 0000000000000000 R08: ffffffff8b74fb15 R09: ffffffff8b74fa4b
R10: 0000000000000004 R11: ffff88805d421e00 R12: 0000000000000246
R13: ffff88805d421e00 R14: 00000000ffffffff R15: ffff888052533a98
lock_is_held include/linux/lockdep.h:231 [inline]
mt_locked lib/maple_tree.c:781 [inline]
mt_slot lib/maple_tree.c:788 [inline]
mas_slot lib/maple_tree.c:821 [inline]
mas_get_slot+0x15e/0x250 lib/maple_tree.c:7057
mt_validate+0x27d2/0x4aa0 lib/maple_tree.c:7596
validate_mm+0xe7/0x530 mm/mmap.c:288
__split_vma+0xaca/0xc30 mm/mmap.c:2440
split_vma mm/mmap.c:2466 [inline]
vma_modify+0x268/0x350 mm/mmap.c:2507
vma_modify_flags include/linux/mm.h:3352 [inline]
mprotect_fixup+0x3ea/0xa90 mm/mprotect.c:637
do_mprotect_pkey+0x908/0xe00 mm/mprotect.c:820
__do_sys_mprotect mm/mprotect.c:841 [inline]
__se_sys_mprotect mm/mprotect.c:838 [inline]
__x64_sys_mprotect+0x80/0x90 mm/mprotect.c:838
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: 0033:0x7f7374ca0bb7
RSP: 002b:00007ffe1607cce8 EFLAGS: 00000206 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 00007f7374c7dfc0 RCX: 00007f7374ca0bb7
RDX: 0000000000000001 RSI: 0000000000001000 RDI: 00007f73749f5000
RBP: 00007ffe1607ce00 R08: 00007ffe1607cc78 R09: 00007f7374c7d5c0
R10: 00007f73749d4168 R11: 0000000000000206 R12: 00007f7374c7dfc0
R13: 00007f7374ca8eda R14: 00007f73749f5f40 R15: 00007f73749f5740
task:kworker/u8:15 state:R running task stack:20720 pid:24064 tgid:24064 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
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:5758
Code: 2b 00 74 08 4c 89 f7 e8 4a 2d 86 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:ffffc900097679e0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff920012ecf48 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcaccc0 RDI: ffffffff8c1f1780
RBP: ffffc90009767b40 R08: ffffffff92f71587 R09: 1ffffffff25ee2b0
R10: dffffc0000000000 R11: fffffbfff25ee2b1 R12: 1ffff920012ecf44
R13: dffffc0000000000 R14: ffffc90009767a40 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
rcu_read_lock include/linux/rcupdate.h:781 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xec/0x610 net/batman-adv/network-coding.c:719
process_one_work kernel/workqueue.c:3248 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329
worker_thread+0x86d/0xd50 kernel/workqueue.c:3409
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 10332 jiffies! g244393 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:24912 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x1796/0x49d0 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6837
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2000
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2202
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: 0 PID: 0 Comm: swapper/0 Not tainted 6.10.0-rc5-syzkaller-00294-g3ffea9a7a6f7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
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:72 [inline]
RIP: 0010:acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:113
Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 80 d4 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d b5 38 ab 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:ffffffff8e007ca8 EFLAGS: 00000246
RAX: ffffffff8e094680 RBX: ffff88801bab0864 RCX: 00000000022a9849
RDX: 0000000000000001 RSI: ffff88801bab0800 RDI: ffff88801bab0864
RBP: 000000000003a538 R08: ffff8880b9437ccb R09: 1ffff11017286f99
R10: dffffc0000000000 R11: ffffffff8b7d68c0 R12: ffff888017fcf800
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8eabb9e0
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff544c7008 CR3: 0000000021d9a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 00000000000000bd DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:707
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:236 [inline]
do_idle+0x375/0x5d0 kernel/sched/idle.c:332
cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:430
rest_init+0x2dc/0x300 init/main.c:747
start_kernel+0x47a/0x500 init/main.c:1103
x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507
x86_64_start_kernel+0x99/0xa0 arch/x86/kernel/head64.c:488
common_startup_64+0x13e/0x147