rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P11352/1:b..l
	(detected by 1, t=10503 jiffies, g=54897, q=119 ncpus=2)
task:syz-executor.3  state:R  running task     stack:23544 pid:11352 ppid:7526   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0x142d/0x4550 kernel/sched/core.c:6558
 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
 irqentry_exit+0x53/0x80 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:blkcg_css+0x147/0x1c0 block/blk-cgroup.c:78
Code: 33 e8 1d e9 65 fd eb 05 e8 16 e9 65 fd 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 7c 68 bd fd 48 8b 1b <48> 89 d8 5b 41 5e 41 5f 5d c3 e8 7a 69 66 06 89 c5 31 ff 89 c6 e8
RSP: 0018:ffffc9000549f330 EFLAGS: 00000246
RAX: 1ffff1100ad76603 RBX: ffff888146e9b800 RCX: 0000000000040000
RDX: ffffc9000a31b000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: 0000000000000001 R08: ffffffff8424a42a R09: fffffbfff2093845
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000cc0
R13: ffffc9000549f498 R14: ffff88801e67596c R15: dffffc0000000000
 blk_cgroup_congested+0xb9/0x220 block/blk-cgroup.c:1998
 __cgroup_throttle_swaprate+0x6d/0x1b0 mm/swapfile.c:3671
 cgroup_throttle_swaprate include/linux/swap.h:662 [inline]
 folio_throttle_swaprate include/linux/swap.h:671 [inline]
 shmem_add_to_page_cache+0xb90/0x1e60 mm/shmem.c:717
 shmem_get_folio_gfp+0x164e/0x3470 mm/shmem.c:1971
 shmem_fault+0x235/0x9c0 mm/shmem.c:2156
 __do_fault+0x136/0x4f0 mm/memory.c:4261
 do_read_fault mm/memory.c:4612 [inline]
 do_fault mm/memory.c:4741 [inline]
 handle_pte_fault mm/memory.c:5013 [inline]
 __handle_mm_fault mm/memory.c:5155 [inline]
 handle_mm_fault+0x3412/0x5340 mm/memory.c:5276
 faultin_page mm/gup.c:1009 [inline]
 __get_user_pages+0x4f3/0x1190 mm/gup.c:1233
 populate_vma_page_range+0x217/0x2b0 mm/gup.c:1590
 __mm_populate+0x275/0x440 mm/gup.c:1704
 mm_populate include/linux/mm.h:2797 [inline]
 vm_mmap_pgoff+0x22b/0x2d0 mm/util.c:525
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fafbe87cf69
RSP: 002b:00007fafbf6350c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fafbe9b3f80 RCX: 00007fafbe87cf69
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007fafbe8da6fe R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fafbe9b3f80 R15: 00007ffd26022e48
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10538 jiffies! g54897 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=31022
rcu: rcu_preempt kthread starved for 10541 jiffies! g54897 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:25624 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0x142d/0x4550 kernel/sched/core.c:6558
 schedule+0xbf/0x180 kernel/sched/core.c:6634
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.1.92-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:bpf_prog_16ecb682114cf56a+0x0/0x22
Code: ff ff 7f e9 00 ff ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc 40 00 00 00 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc <0f> 1f 44 00 00 66 90 55 48 89 e5 48 bf 21 00 00 00 00 00 00 10 e8
RSP: 0018:ffffc900001479b8 EFLAGS: 00000046
RAX: 1ffff920009f7206 RBX: ffffc90004fb9048 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffffc90004fb9048 RDI: ffffc90000147a00
RBP: ffffc90000147a88 R08: ffffffff81950c8b R09: fffffbfff2093845
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920009f7205
R13: ffffc90004fb9030 R14: ffffffff81950c5a R15: ffffc90004fb9028
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f21af7b0000 CR3: 000000005f0df000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __traceiter_sched_switch+0x91/0xc0 include/trace/events/sched.h:222
 trace_sched_switch include/trace/events/sched.h:222 [inline]
 __schedule+0x2116/0x4550 kernel/sched/core.c:6555
 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
 irqentry_exit+0x53/0x80 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:84 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x74/0x290 mm/kasan/generic.c:189
Code: 49 c1 ea 03 49 bb 01 00 00 00 00 fc ff df 4f 8d 34 1a 4c 89 f5 4c 29 cd 48 83 fd 10 7f 26 48 85 ed 0f 84 3a 01 00 00 49 f7 d2 <49> 01 da 41 80 39 00 0f 85 c4 01 00 00 49 ff c1 49 ff c2 75 ee e9
RSP: 0018:ffffc90000147e28 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 1ffff11027fda770 RCX: ffffffff8a938926
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88813fed3b80
RBP: 0000000000000001 R08: dffffc0000000000 R09: ffffed1027fda770
R10: e0000eefd802588f R11: dffffc0000000001 R12: ffff88813fed3b80
R13: ffffffff8cfcf300 R14: ffffed1027fda771 R15: dffffc0000000000
 instrument_atomic_read include/linux/instrumented.h:72 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 test_ti_thread_flag include/linux/thread_info.h:118 [inline]
 need_resched include/linux/sched.h:2231 [inline]
 schedule+0xd6/0x180 kernel/sched/core.c:6636
 smpboot_thread_fn+0x604/0xa30 kernel/smpboot.c:160
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>