rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 1-...0: (1 GPs behind) idle=827c/1/0x4000000000000000 softirq=98638/98639 fqs=2100
rcu: hardirqs softirqs csw/system
rcu: number: 0 0 0
rcu: cputime: 0 0 0 ==> 52500(ms)
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8472/1:b..l P8597/1:b..l P8527/1:b..l P49/1:b..l
rcu: (detected by 0, t=10505 jiffies, g=148881, q=186 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 8598 Comm: syz-executor.4 Not tainted 6.8.0-rc1-syzkaller-00026-g7ed2632ec7d7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:__sanitizer_cov_trace_cmp8+0x8/0x20 kernel/kcov.c:283
Code: 00 00 f3 0f 1e fa 48 8b 0c 24 89 f2 89 fe bf 04 00 00 00 e9 2a ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 8b 0c 24 <48> 89 f2 48 89 fe bf 06 00 00 00 e9 08 ff ff ff 0f 1f 84 00 00 00
RSP: 0018:ffffc900001f0d88 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: 17be262e28000000 RCX: ffffffff88ae8a51
RDX: 1ffff11008cdb9a8 RSI: 0000000000000000 RDI: 17be262e28000000
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000003 R12: ffff8880b992bac0
R13: 0000000000000000 R14: ffff88802583e340 R15: ffff8880466dcc00
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe80f7a8000 CR3: 000000000cf78000 CR4: 0000000000350ef0
Call Trace:
advance_sched+0x231/0xc60 net/sched/sch_taprio.c:952
__run_hrtimer kernel/time/hrtimer.c:1688 [inline]
__hrtimer_run_queues+0x203/0xc20 kernel/time/hrtimer.c:1752
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline]
__sysvec_apic_timer_interrupt+0x105/0x400 arch/x86/kernel/apic/apic.c:1082
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1076
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x8/0x20 kernel/kcov.c:310
Code: 00 00 f3 0f 1e fa 48 8b 0c 24 89 f2 89 fe bf 05 00 00 00 e9 aa fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 8b 0c 24 <48> 89 f2 48 89 fe bf 07 00 00 00 e9 88 fe ff ff 0f 1f 84 00 00 00
RSP: 0018:ffffc900098e7848 EFLAGS: 00000212
RAX: 0000000000000000 RBX: 1ffff9200131cf0a RCX: ffffffff81eaa225
RDX: ffff8880486f9dc0 RSI: 0000000000000009 RDI: 000000000007ffff
RBP: 000000000004c2ab R08: 0000000000000007 R09: 0000000000000005
R10: 0000000000000005 R11: 0000000000000003 R12: 0000000000000009
R13: ffffea000130aac0 R14: dffffc0000000000 R15: 800000004c2ab007
pfn_valid include/linux/mmzone.h:2013 [inline]
page_table_check_clear mm/page_table_check.c:68 [inline]
__page_table_check_pte_clear+0x105/0x5a0 mm/page_table_check.c:158
page_table_check_pte_clear include/linux/page_table_check.h:49 [inline]
ptep_get_and_clear_full arch/x86/include/asm/pgtable.h:1302 [inline]
zap_pte_range mm/memory.c:1452 [inline]
zap_pmd_range mm/memory.c:1597 [inline]
zap_pud_range mm/memory.c:1626 [inline]
zap_p4d_range mm/memory.c:1647 [inline]
unmap_page_range+0x1800/0x2b00 mm/memory.c:1668
unmap_single_vma+0x194/0x2b0 mm/memory.c:1714
unmap_vmas+0x22f/0x490 mm/memory.c:1758
exit_mmap+0x1c1/0xb50 mm/mmap.c:3277
__mmput+0x12a/0x4d0 kernel/fork.c:1343
mmput+0x62/0x70 kernel/fork.c:1365
exit_mm kernel/exit.c:569 [inline]
do_exit+0x9a5/0x2ad0 kernel/exit.c:858
do_group_exit+0xd4/0x2a0 kernel/exit.c:1020
__do_sys_exit_group kernel/exit.c:1031 [inline]
__se_sys_exit_group kernel/exit.c:1029 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1029
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fe80f67cda9
Code: Unable to access opcode bytes at 0x7fe80f67cd7f.
RSP: 002b:00007ffc018c9bd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007fe80f67cda9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000112 R09: 0000000000000000
R10: 0000001b31820000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
task:kworker/u4:3 state:R running task stack:23744 pid:49 tgid:49 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf12/0x5c00 kernel/sched/core.c:6727
preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:7047
irqentry_exit+0x36/0x80 kernel/entry/common.c:348
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:654
RIP: 0010:lock_acquire+0x1ef/0x520 kernel/locking/lockdep.c:5722
Code: c1 05 dd 04 9a 7e 83 f8 01 0f 85 b4 02 00 00 9c 58 f6 c4 02 0f 85 9f 02 00 00 48 85 ed 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc90000ba7ac8 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff92000174f5b RCX: 00000000c6bbcfe0
RDX: 0000000000000001 RSI: ffffffff8accb180 RDI: ffffffff8b2fd380
RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff242abe8
R10: ffffffff92155f47 R11: 0000000000000002 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff8d1acba0 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
rcu_read_lock include/linux/rcupdate.h:750 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0x16e/0x10e0 net/batman-adv/network-coding.c:719
process_one_work+0x886/0x15d0 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2706 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2787
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
task:syz-executor.1 state:R running task stack:26032 pid:8527 tgid:8478 ppid:5084 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf12/0x5c00 kernel/sched/core.c:6727
preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6904
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3a/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
wp_page_copy mm/memory.c:3244 [inline]
do_wp_page+0x14b5/0x37b0 mm/memory.c:3525
handle_pte_fault mm/memory.c:5160 [inline]
__handle_mm_fault+0x1f87/0x4900 mm/memory.c:5285
handle_mm_fault+0x47a/0xa10 mm/memory.c:5450
do_user_addr_fault+0x3f8/0x1030 arch/x86/mm/fault.c:1415
handle_page_fault arch/x86/mm/fault.c:1507 [inline]
exc_page_fault+0x5d/0xc0 arch/x86/mm/fault.c:1563
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0010:rep_movs_alternative+0x57/0x70 arch/x86/lib/copy_user_64.S:80
Code: 00 66 90 48 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 73 e8 eb c9 eb 01 c3 48 89 c8 48 c1 e9 03 83 e0 07 48 a5 89 c1 85 c9 75 b3 c3 48 8d 0c c8 eb ac 66 0f 1f 84 00 00
RSP: 0018:ffffc90009f17958 EFLAGS: 00050246
RAX: 0000000000000000 RBX: 0000000000001000 RCX: 00000000000001d0
RDX: 0000000000000000 RSI: ffff888010d5c180 RDI: 00000000205e2000
RBP: 0000000000001000 R08: 0000000000000000 R09: ffffed10021ab9ff
R10: ffff888010d5cfff R11: 0000000000000000 R12: 00000000005e1b80
R13: ffffc90009f17d50 R14: ffff888010d5c000 R15: 00000000205e1e80
copy_user_generic arch/x86/include/asm/uaccess_64.h:112 [inline]
raw_copy_to_user arch/x86/include/asm/uaccess_64.h:133 [inline]
copy_to_user_iter lib/iov_iter.c:25 [inline]
iterate_iovec include/linux/iov_iter.h:51 [inline]
iterate_and_advance2 include/linux/iov_iter.h:247 [inline]
iterate_and_advance include/linux/iov_iter.h:271 [inline]
_copy_to_iter+0x4ce/0x11e0 lib/iov_iter.c:186
copy_page_to_iter lib/iov_iter.c:381 [inline]
copy_page_to_iter+0xf1/0x180 lib/iov_iter.c:368
process_vm_rw_pages mm/process_vm_access.c:45 [inline]
process_vm_rw_single_vec mm/process_vm_access.c:118 [inline]
process_vm_rw_core.constprop.0+0x5c9/0xa00 mm/process_vm_access.c:216
process_vm_rw+0x2ff/0x360 mm/process_vm_access.c:284
__do_sys_process_vm_readv mm/process_vm_access.c:296 [inline]
__se_sys_process_vm_readv mm/process_vm_access.c:292 [inline]
__x64_sys_process_vm_readv+0xe2/0x1b0 mm/process_vm_access.c:292
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f40f0a7cda9
RSP: 002b:00007f40f188e0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000136
RAX: ffffffffffffffda RBX: 00007f40f0bac050 RCX: 00007f40f0a7cda9
RDX: 0000000000000002 RSI: 0000000020008400 RDI: 0000000000002230
RBP: 00007f40f0ac947a R08: 0000000000000286 R09: 0000000000000000
R10: 0000000020008640 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f40f0bac050 R15: 00007ffd4163fc48
task:syz-executor.0 state:R running task stack:26384 pid:8597 tgid:8596 ppid:1363 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf12/0x5c00 kernel/sched/core.c:6727
preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6904
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3a/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
do_anonymous_page mm/memory.c:4333 [inline]
do_pte_missing mm/memory.c:3743 [inline]
handle_pte_fault mm/memory.c:5144 [inline]
__handle_mm_fault+0x2f4c/0x4900 mm/memory.c:5285
handle_mm_fault+0x47a/0xa10 mm/memory.c:5450
faultin_page mm/gup.c:958 [inline]
__get_user_pages+0x4b2/0x1490 mm/gup.c:1241
__get_user_pages_locked mm/gup.c:1509 [inline]
__gup_longterm_locked+0x6a8/0x2ad0 mm/gup.c:2216
pin_user_pages+0x13c/0x160 mm/gup.c:3389
xdp_umem_pin_pages net/xdp/xdp_umem.c:105 [inline]
xdp_umem_reg net/xdp/xdp_umem.c:227 [inline]
xdp_umem_create+0x725/0x1250 net/xdp/xdp_umem.c:260
xsk_setsockopt+0x744/0x9f0 net/xdp/xsk.c:1394
do_sock_setsockopt+0x222/0x470 net/socket.c:2311
__sys_setsockopt+0x1a6/0x270 net/socket.c:2334
__do_sys_setsockopt net/socket.c:2343 [inline]
__se_sys_setsockopt net/socket.c:2340 [inline]
__x64_sys_setsockopt+0xbd/0x150 net/socket.c:2340
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f83b4a7cda9
RSP: 002b:00007f83b57ad0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f83b4babf80 RCX: 00007f83b4a7cda9
RDX: 0000000000000004 RSI: 000000000000011b RDI: 0000000000000003
RBP: 00007f83b4ac947a R08: 0000000000000077 R09: 0000000000000000
R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f83b4babf80 R15: 00007ffe53ed2c78
task:syz-executor.5 state:R running task stack:26032 pid:8472 tgid:8469 ppid:7424 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf12/0x5c00 kernel/sched/core.c:6727
preempt_schedule_common+0x45/0xc0 kernel/sched/core.c:6904
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
unwind_next_frame+0x1c80/0x2390 arch/x86/kernel/unwind_orc.c:672
arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
save_stack+0x160/0x1f0 mm/page_owner.c:129
__reset_page_owner+0x51/0x2e0 mm/page_owner.c:150
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1140 [inline]
free_unref_page_prepare+0x51f/0xb10 mm/page_alloc.c:2346
free_unref_page_list+0xe6/0xb40 mm/page_alloc.c:2532
release_pages+0x32a/0x14f0 mm/swap.c:1042
tlb_batch_pages_flush+0x9a/0x190 mm/mmu_gather.c:98
zap_pte_range mm/memory.c:1558 [inline]
zap_pmd_range mm/memory.c:1597 [inline]
zap_pud_range mm/memory.c:1626 [inline]
zap_p4d_range mm/memory.c:1647 [inline]
unmap_page_range+0x18d6/0x2b00 mm/memory.c:1668
unmap_single_vma+0x194/0x2b0 mm/memory.c:1714
unmap_vmas+0x22f/0x490 mm/memory.c:1758
exit_mmap+0x1c1/0xb50 mm/mmap.c:3277
__mmput+0x12a/0x4d0 kernel/fork.c:1343
mmput+0x62/0x70 kernel/fork.c:1365
exit_mm kernel/exit.c:569 [inline]
do_exit+0x9a5/0x2ad0 kernel/exit.c:858
do_group_exit+0xd4/0x2a0 kernel/exit.c:1020
get_signal+0x23b5/0x2790 kernel/signal.c:2893
arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:105 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
syscall_exit_to_user_mode+0x156/0x2b0 kernel/entry/common.c:212
do_syscall_64+0xe0/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f149647cda9
RSP: 002b:00007f14971e80c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000136
RAX: 0000000000bffb80 RBX: 00007f14965abf80 RCX: 00007f149647cda9
RDX: 0000000000000002 RSI: 0000000020008400 RDI: 000000000000139c
RBP: 00007f14964c947a R08: 0000000000000286 R09: 0000000000000000
R10: 0000000020008640 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f14965abf80 R15: 00007ffe9fa3e448