rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 GPs behind) idle=3614/1/0x4000000000000000 softirq=15507/15512 fqs=12
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P7982/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=24749, q=477 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5080 Comm: syz-executor.1 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline]
RIP: 0010:lock_is_held_type+0x10e/0x190 kernel/locking/lockdep.c:5826
Code: 95 c0 31 db 44 39 f0 0f 94 c3 eb 05 bb 01 00 00 00 48 c7 c7 60 d3 aa 8b e8 af 1a 00 00 b8 ff ff ff ff 65 0f c1 05 02 f3 96 74 <83> f8 01 75 44 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02
RSP: 0018:ffffc90000007c48 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffff888029e9bc00
RDX: ffff888029e9bc00 RSI: ffffffff8baad360 RDI: ffffffff8bfdff00
RBP: 0000000000000008 R08: ffffffff8978d2ab R09: fffff52000000f80
R10: dffffc0000000000 R11: fffff52000000f80 R12: 0000000000000046
R13: ffff888029e9bc00 R14: 00000000ffffffff R15: ffff88805e99e300
FS:  0000555584fe3480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f51c7ed56c6 CR3: 0000000061962000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lock_is_held include/linux/lockdep.h:231 [inline]
 advance_sched+0x1c2/0xca0 net/sched/sch_taprio.c:929
 __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
 __hrtimer_run_queues+0x595/0xd00 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x107/0x3a0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:rcu_preempt_read_exit kernel/rcu/tree_plugin.h:384 [inline]
RIP: 0010:__rcu_read_unlock+0x2f/0x110 kernel/rcu/tree_plugin.h:423
Code: 41 57 41 56 41 55 41 54 53 49 bc 00 00 00 00 00 fc ff df 65 4c 8b 34 25 40 d0 03 00 4d 8d ae 3c 04 00 00 4c 89 eb 48 c1 eb 03 <42> 0f b6 04 23 84 c0 75 6b 41 8b 6d 00 ff cd 42 0f b6 04 23 84 c0
RSP: 0018:ffffc900042e72f8 EFLAGS: 00000a03
RAX: ffffffff82009e08 RBX: 1ffff110053d3807 RCX: ffff888029e9bc00
RDX: 0000000000000000 RSI: ffffffff8bfdfee0 RDI: ffffffff8bfdfea0
RBP: ffffc900042e73f0 R08: ffffffff82009df6 R09: 1ffff1100301a931
R10: dffffc0000000000 R11: ffffed100301a932 R12: dffffc0000000000
R13: ffff888029e9c03c R14: ffff888029e9bc00 R15: 1ffff9200085ce6c
 rcu_read_unlock include/linux/rcupdate.h:782 [inline]
 page_ext_put+0x95/0xc0 mm/page_ext.c:533
 __page_table_check_ptes_set+0x220/0x280 mm/page_table_check.c:196
 page_table_check_ptes_set include/linux/page_table_check.h:74 [inline]
 set_ptes include/linux/pgtable.h:241 [inline]
 copy_present_pte mm/memory.c:993 [inline]
 copy_pte_range mm/memory.c:1102 [inline]
 copy_pmd_range mm/memory.c:1187 [inline]
 copy_pud_range mm/memory.c:1224 [inline]
 copy_p4d_range mm/memory.c:1248 [inline]
 copy_page_range+0x2c7f/0x4240 mm/memory.c:1346
 dup_mmap kernel/fork.c:747 [inline]
 dup_mm kernel/fork.c:1687 [inline]
 copy_mm+0x12f5/0x21b0 kernel/fork.c:1736
 copy_process+0x187a/0x3df0 kernel/fork.c:2389
 kernel_clone+0x223/0x840 kernel/fork.c:2796
 __do_sys_clone kernel/fork.c:2939 [inline]
 __se_sys_clone kernel/fork.c:2923 [inline]
 __x64_sys_clone+0x258/0x2a0 kernel/fork.c:2923
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f51c727ae93
Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffccbfd4308 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f51c727ae93
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 0000555584fe3750 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
 </TASK>
task:syz-executor.2  state:R  running task     stack:25560 pid:7982  tgid:7979  ppid:5073   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x1781/0x49d0 kernel/sched/core.c:6736
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7058
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:348
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x25b/0x530 kernel/locking/lockdep.c:5758
Code: 2b 00 74 08 4c 89 f7 e8 b3 5a 83 00 f6 44 24 61 02 0f 85 8e 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:ffffc900143b7500 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92002876eac RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8baad360 RDI: ffffffff8bfdff00
RBP: ffffc900143b7660 R08: ffffffff92cae507 R09: 1ffffffff2595ca0
R10: dffffc0000000000 R11: fffffbfff2595ca1 R12: 1ffff92002876ea8
R13: dffffc0000000000 R14: ffffc900143b7560 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
 rcu_read_lock include/linux/rcupdate.h:750 [inline]
 percpu_ref_get_many+0x36/0x140 include/linux/percpu-refcount.h:202
 percpu_ref_get include/linux/percpu-refcount.h:222 [inline]
 css_get include/linux/cgroup_refcnt.h:11 [inline]
 mem_cgroup_commit_charge+0x9f/0x380 mm/memcontrol.c:2970
 charge_memcg+0xb1/0x160 mm/memcontrol.c:7280
 __mem_cgroup_charge+0x27/0x80 mm/memcontrol.c:7291
 mem_cgroup_charge include/linux/memcontrol.h:690 [inline]
 shmem_alloc_and_add_folio+0x394/0xdf0 mm/shmem.c:1683
 shmem_get_folio_gfp+0x82d/0x1f50 mm/shmem.c:2061
 shmem_get_folio mm/shmem.c:2166 [inline]
 shmem_write_begin+0x170/0x4d0 mm/shmem.c:2750
 generic_perform_write+0x322/0x640 mm/filemap.c:3930
 shmem_file_write_iter+0xfc/0x120 mm/shmem.c:2926
 call_write_iter include/linux/fs.h:2108 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0xa84/0xcb0 fs/read_write.c:590
 ksys_write+0x1a0/0x2c0 fs/read_write.c:643
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f468f87cbaf
RSP: 002b:00007f4690616e80 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000001000000 RCX: 00007f468f87cbaf
RDX: 0000000001000000 RSI: 00007f4685600000 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000009756
R10: 000000002001c602 R11: 0000000000000293 R12: 0000000000000005
R13: 00007f4690616f80 R14: 00007f4690616f40 R15: 00007f4685600000
 </TASK>
rcu: rcu_preempt kthread starved for 10440 jiffies! g24749 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:26256 pid:16    tgid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x1781/0x49d0 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2572
 rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:1663
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1862
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 24 Comm: kworker/1:0 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events drain_vmap_area_work
RIP: 0010:check_kcov_mode kernel/kcov.c:184 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x37/0x70 kernel/kcov.c:207
Code: 40 d0 03 00 65 8b 15 e0 db 6e 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 14 16 00 00 00 74 2c 8b 91 f0 15 00 00 <83> fa 02 75 21 48 8b 91 f8 15 00 00 48 8b 32 48 8d 7e 01 8b 89 f4
RSP: 0018:ffffc900001e77f8 EFLAGS: 00000246
RAX: ffffffff818922e8 RBX: 1ffff11017288be5 RCX: ffff8880172d0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900001e7a00 R08: ffffffff818922b7 R09: 1ffffffff2595ca0
R10: dffffc0000000000 R11: fffffbfff2595ca1 R12: dffffc0000000000
R13: ffff8880b9445f28 R14: ffff8880b953f440 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0029d8000 CR3: 0000000061968000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 csd_lock_wait kernel/smp.c:311 [inline]
 smp_call_function_many_cond+0x1868/0x2960 kernel/smp.c:855
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023
 __purge_vmap_area_lazy+0x28e/0x1a10 mm/vmalloc.c:1821
 drain_vmap_area_work+0x40/0xd0 mm/vmalloc.c:1876
 process_one_work kernel/workqueue.c:3254 [inline]
 process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>