rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P7980/1:b..l P61/1:b..l P7995/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=30089, q=256 ncpus=2)
task:modprobe state:R running task stack:26656 pid:7995 tgid:7995 ppid:969 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xe37/0x5490 kernel/sched/core.c:6529
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:6851
irqentry_exit+0x36/0x90 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+0x107/0x150 kernel/locking/lockdep.c:5836
Code: 00 00 b8 ff ff ff ff 65 0f c1 05 4c 44 f1 74 83 f8 01 75 2d 9c 58 f6 c4 02 75 43 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 45 31 ed eb
RSP: 0018:ffffc9000341f7f0 EFLAGS: 00000296
RAX: 0000000000000046 RBX: ffff88801b7a0b08 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8b4cc880 RDI: ffffffff8bb08c00
RBP: ffffffff8de05f48 R08: 0000000000000000 R09: fffffbfff28c4cd8
R10: ffffffff946266c7 R11: 0000000000000000 R12: ffff88801b7a0000
R13: 0000000000000000 R14: 00000000ffffffff R15: 0000000000000002
lock_is_held include/linux/lockdep.h:249 [inline]
task_css include/linux/cgroup.h:433 [inline]
mem_cgroup_from_task mm/memcontrol.c:890 [inline]
get_mem_cgroup_from_mm+0x1b8/0x5f0 mm/memcontrol.c:943
__mem_cgroup_charge+0x1a/0x270 mm/memcontrol.c:4435
mem_cgroup_charge include/linux/memcontrol.h:671 [inline]
folio_prealloc mm/memory.c:1068 [inline]
do_cow_fault mm/memory.c:5085 [inline]
do_fault mm/memory.c:5193 [inline]
do_pte_missing mm/memory.c:3947 [inline]
handle_pte_fault mm/memory.c:5522 [inline]
__handle_mm_fault+0x10af/0x5660 mm/memory.c:5665
handle_mm_fault+0x44e/0x7b0 mm/memory.c:5833
do_user_addr_fault+0x7a3/0x13f0 arch/x86/mm/fault.c:1389
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:rep_stos_alternative+0x40/0x80 arch/x86/lib/clear_page_64.S:96
Code: ff c7 48 ff c9 75 f6 c3 cc cc cc cc 48 89 07 48 83 c7 08 83 e9 08 74 ef 83 f9 08 73 ef eb de 66 66 2e 0f 1f 84 00 00 00 00 00 <48> 89 07 48 89 47 08 48 89 47 10 48 89 47 18 48 89 47 20 48 89 47
RSP: 0018:ffffc9000341fbb8 EFLAGS: 00050206
RAX: 0000000000000000 RBX: ffff8880793518a8 RCX: 0000000000000f30
RDX: ffff88801b7a0000 RSI: ffffffff82163f65 RDI: 00007f7f284c40d0
RBP: 00007f7f284c40d0 R08: 0000000000000000 R09: fffffbfff2025253
R10: ffffffff9012929f R11: 0000000000000000 R12: 00000000000000d0
R13: 00007f7f284c1000 R14: ffff8880793518c8 R15: ffff8880793518b8
__clear_user arch/x86/include/asm/uaccess_64.h:172 [inline]
clear_user arch/x86/include/asm/uaccess_64.h:189 [inline]
padzero fs/binfmt_elf.c:125 [inline]
elf_load+0x6aa/0x880 fs/binfmt_elf.c:421
load_elf_interp fs/binfmt_elf.c:675 [inline]
load_elf_binary+0x339e/0x4d90 fs/binfmt_elf.c:1235
search_binary_handler fs/exec.c:1821 [inline]
exec_binprm fs/exec.c:1863 [inline]
bprm_execve fs/exec.c:1914 [inline]
bprm_execve+0x703/0x1960 fs/exec.c:1890
kernel_execve+0x2ef/0x3b0 fs/exec.c:2081
call_usermodehelper_exec_async+0x255/0x4c0 kernel/umh.c:110
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:kworker/u8:4 state:R running task stack:23952 pid:61 tgid:61 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xe37/0x5490 kernel/sched/core.c:6529
preempt_schedule_notrace+0x62/0xe0 kernel/sched/core.c:6801
preempt_schedule_notrace_thunk+0x1a/0x30 arch/x86/entry/thunk.S:13
rcu_is_watching+0x8e/0xc0 kernel/rcu/tree.c:727
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0x47b/0x560 kernel/locking/lockdep.c:5730
rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
rcu_read_lock include/linux/rcupdate.h:838 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0x16e/0x10f0 net/batman-adv/network-coding.c:719
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf20 kernel/workqueue.c:3390
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:syz.4.783 state:R running task stack:27168 pid:7980 tgid:7980 ppid:5225 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xe37/0x5490 kernel/sched/core.c:6529
preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6708
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]
zap_pte_range mm/memory.c:1688 [inline]
zap_pmd_range mm/memory.c:1736 [inline]
zap_pud_range mm/memory.c:1765 [inline]
zap_p4d_range mm/memory.c:1786 [inline]
unmap_page_range+0xbb8/0x3c10 mm/memory.c:1807
unmap_single_vma+0x194/0x2b0 mm/memory.c:1853
unmap_vmas+0x22f/0x490 mm/memory.c:1897
exit_mmap+0x1b8/0xb20 mm/mmap.c:3412
__mmput+0x12a/0x480 kernel/fork.c:1345
mmput+0x62/0x70 kernel/fork.c:1367
exit_mm kernel/exit.c:571 [inline]
do_exit+0x9bf/0x2bb0 kernel/exit.c:869
do_group_exit+0xd3/0x2a0 kernel/exit.c:1031
__do_sys_exit_group kernel/exit.c:1042 [inline]
__se_sys_exit_group kernel/exit.c:1040 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1040
x64_sys_call+0x14a9/0x16a0 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1534d77299
RSP: 002b:00007ffc04eb3838 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1534d77299
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffc04eb388c R08: 00007ffc04eb391f R09: 000000000003f3fe
R10: 00007f1534ef2000 R11: 0000000000000246 R12: 0000000000000032
R13: 000000000003f3fe R14: 000000000003ef18 R15: 00007ffc04eb38e0
rcu: rcu_preempt kthread starved for 10578 jiffies! g30089 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:28176 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xe37/0x5490 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6621
schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2581
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2034
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2236
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 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 6.10.0-syzkaller-12710-g3a7e02c040b1 #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+0x1a/0x20 drivers/acpi/processor_idle.c:112
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 65 48 8b 05 48 69 f2 74 48 8b 00 a8 08 75 0c 66 90 0f 00 2d b8 82 aa 00 fb f4 c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900001a7d58 EFLAGS: 00000246
RAX: 0000000000004000 RBX: 0000000000000001 RCX: ffffffff8b115519
RDX: 0000000000000001 RSI: ffff888019ade000 RDI: ffff888019ade064
RBP: ffff888019ade064 R08: 0000000000000001 R09: ffffed1017266fe1
R10: ffff8880b9337f0b R11: 0000000000000000 R12: ffff88801b7b0800
R13: ffffffff8e94eac0 R14: 0000000000000001 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32117ff8 CR3: 0000000062d66000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
acpi_idle_enter+0xc5/0x160 drivers/acpi/processor_idle.c:702
cpuidle_enter_state+0x85/0x500 drivers/cpuidle/cpuidle.c:267
cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:388
cpuidle_idle_call kernel/sched/idle.c:230 [inline]
do_idle+0x313/0x3f0 kernel/sched/idle.c:326
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:424
start_secondary+0x220/0x2b0 arch/x86/kernel/smpboot.c:313
common_startup_64+0x13e/0x148