rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P1119/1:b..l P11601/1:b..l P10886/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=48745, q=412 ncpus=2)
task:syz-executor state:R running task stack:20992 pid:10886 tgid:10886 ppid:10849 flags:0x00004002
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]
copy_pte_range mm/memory.c:1191 [inline]
copy_pmd_range+0x7ad5/0x8500 mm/memory.c:1252
copy_pud_range mm/memory.c:1289 [inline]
copy_p4d_range mm/memory.c:1313 [inline]
copy_page_range+0x99f/0xe90 mm/memory.c:1411
dup_mmap kernel/fork.c:749 [inline]
dup_mm kernel/fork.c:1672 [inline]
copy_mm+0x11ea/0x1f30 kernel/fork.c:1721
copy_process+0x187a/0x3dc0 kernel/fork.c:2374
kernel_clone+0x223/0x870 kernel/fork.c:2781
__do_sys_clone kernel/fork.c:2924 [inline]
__se_sys_clone kernel/fork.c:2908 [inline]
__x64_sys_clone+0x258/0x2a0 kernel/fork.c:2908
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: 0033:0x7fc2d736db93
RSP: 002b:00007ffdfaa12388 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc2d736db93
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 000055557c3cc7d0 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000008ebcf R14: 000000000008e747 R15: 00007ffdfaa12510
task:sed state:R running task stack:26288 pid:11601 tgid:11601 ppid:11599 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:spin_lock include/linux/spinlock.h:351 [inline]
RIP: 0010:__pte_offset_map_lock+0x1b2/0x300 mm/pgtable-generic.c:375
Code: 00 ea ff ff 48 01 c3 48 89 d8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df 42 80 3c 28 00 74 08 48 89 df e8 81 6a 12 00 4c 8b 33 <4c> 89 f7 e8 76 7b d1 09 48 8b 44 24 28 42 80 3c 28 00 48 8b 5c 24
RSP: 0018:ffffc9000b867200 EFLAGS: 00000246
RAX: 1ffffd40003489bd RBX: ffffea0001a44de8 RCX: ffff888025409e00
RDX: 0000000069137ff0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000b8672f0 R08: ffffffff81e52afb R09: 1ffffffff269cf00
R10: dffffc0000000000 R11: fffffbfff269cf01 R12: 1ffff9200170ce48
R13: dffffc0000000000 R14: ffff88807b466f00 R15: 1ffff9200170ce50
pte_offset_map_lock include/linux/mm.h:2985 [inline]
change_pte_range mm/mprotect.c:99 [inline]
change_pmd_range mm/mprotect.c:426 [inline]
change_pud_range mm/mprotect.c:459 [inline]
change_p4d_range mm/mprotect.c:482 [inline]
change_protection_range mm/mprotect.c:510 [inline]
change_protection+0xeae/0x3d50 mm/mprotect.c:544
mprotect_fixup+0x740/0xa90 mm/mprotect.c:657
setup_arg_pages+0x5c8/0x1000 fs/exec.c:865
load_elf_binary+0xb80/0x2680 fs/binfmt_elf.c:1014
search_binary_handler fs/exec.c:1821 [inline]
exec_binprm fs/exec.c:1863 [inline]
bprm_execve+0xaf8/0x1770 fs/exec.c:1914
do_execveat_common+0x55f/0x6f0 fs/exec.c:2021
do_execve fs/exec.c:2095 [inline]
__do_sys_execve fs/exec.c:2171 [inline]
__se_sys_execve fs/exec.c:2166 [inline]
__x64_sys_execve+0x92/0xb0 fs/exec.c:2166
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: 0033:0x7f23e87d9ef7
RSP: 002b:00007fff0251c518 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 0000557f58cc3ec8 RCX: 00007f23e87d9ef7
RDX: 0000557f58cc3f08 RSI: 0000557f58cc3ec8 RDI: 0000557f58cc3f98
RBP: 0000557f58cc3f98 R08: 0000557f58cc3f9d R09: 00007fff0251feb8
R10: 00007f23e89d9088 R11: 0000000000000246 R12: 0000557f58cc3f08
R13: 00007f23e8987904 R14: 0000557f58cc3f08 R15: 0000000000000000
task:kworker/u8:8 state:R running task stack:18576 pid:1119 tgid:1119 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
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 aa e9 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:ffffc90003b479e0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000768f48 RCX: 2e433bc112299d00
RDX: dffffc0000000000 RSI: ffffffff8beae6a0 RDI: ffffffff8c3f9480
RBP: ffffc90003b47b40 R08: ffffffff934e7807 R09: 1ffffffff269cf00
R10: dffffc0000000000 R11: fffffbfff269cf01 R12: 1ffff92000768f44
R13: dffffc0000000000 R14: ffffc90003b47a40 R15: 0000000000000246
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+0xec/0x610 net/batman-adv/network-coding.c:719
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 10336 jiffies! g48745 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:26448 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:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:111