rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-...D } 2681 jiffies s: 817 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 6.3.0-rc6-syzkaller-g0bcc40255504 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
Workqueue: writeback wb_workfn (flush-8:0)
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [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:178 [inline]
RIP: 0010:kasan_check_range+0xe2/0x190 mm/kasan/generic.c:187
Code: 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 75 56 5b 5d 41 5c c3 48 85 d2 74 5e 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 50 80 38 00 <74> f2 eb d4 41 bc 08 00 00 00 48 89 ea 45 29 dc 4d 8d 1c 2c eb 0c
RSP: 0018:ffffc90000007a98 EFLAGS: 00000046
RAX: fffffbfff229a570 RBX: fffffbfff229a571 RCX: ffffffff81644359
RDX: fffffbfff229a571 RSI: 0000000000000008 RDI: ffffffff914d2b80
RBP: fffffbfff229a570 R08: 0000000000000000 R09: ffffffff914d2b87
R10: fffffbfff229a570 R11: 0000000000000000 R12: ffff888016790b50
R13: ffff888016790000 R14: 0000000000044000 R15: 00000000000c4000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055720696c680 CR3: 000000002a17d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:72 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 hlock_class kernel/locking/lockdep.c:228 [inline]
 check_wait_context kernel/locking/lockdep.c:4730 [inline]
 __lock_acquire+0x3e9/0x5d40 kernel/locking/lockdep.c:5006
 lock_acquire kernel/locking/lockdep.c:5669 [inline]
 lock_acquire+0x1af/0x520 kernel/locking/lockdep.c:5634
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x3d/0x60 kernel/locking/spinlock.c:162
 debug_object_activate+0x132/0x3e0 lib/debugobjects.c:665
 debug_hrtimer_activate kernel/time/hrtimer.c:420 [inline]
 debug_activate kernel/time/hrtimer.c:475 [inline]
 enqueue_hrtimer+0x27/0x320 kernel/time/hrtimer.c:1084
 __run_hrtimer kernel/time/hrtimer.c:1702 [inline]
 __hrtimer_run_queues+0xa5b/0xbe0 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x320/0x7b0 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
 __sysvec_apic_timer_interrupt+0x14a/0x430 arch/x86/kernel/apic/apic.c:1113
 sysvec_apic_timer_interrupt+0x92/0xc0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:instrument_atomic_read include/linux/instrumented.h:72 [inline]
RIP: 0010:atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline]
RIP: 0010:folio_memcg_lock+0x189/0x640 mm/memcontrol.c:2127
Code: 98 db 81 58 e8 48 0f 89 ff 4d 85 f6 0f 85 ab 02 00 00 9c 58 f6 c4 02 0f 85 60 03 00 00 4d 85 f6 74 01 fb 4c 8d b3 40 09 00 00 <be> 04 00 00 00 4c 89 f7 e8 ba 5a f8 ff 4c 89 f0 48 c1 e8 03 42 0f
RSP: 0018:ffffc900000e7008 EFLAGS: 00000206
RAX: 0000000000000002 RBX: ffff8881400a0000 RCX: 1ffffffff22a1f1e
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900000e7058 R08: 0000000000000001 R09: ffffffff914d2c27
R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000
R13: ffffea0001cf5638 R14: ffff8881400a0940 R15: ffffea0001cf5608
 __folio_start_writeback+0x106/0xa60 mm/page-writeback.c:3054
 ext4_bio_write_page+0x1655/0x29a0 fs/ext4/page-io.c:560
 mpage_submit_page+0x11c/0x290 fs/ext4/inode.c:2129
 mpage_map_and_submit_buffers+0x5f4/0xb00 fs/ext4/inode.c:2374
 mpage_map_and_submit_extent fs/ext4/inode.c:2513 [inline]
 ext4_do_writepages+0x18d8/0x31e0 fs/ext4/inode.c:2876
 ext4_writepages+0x27c/0x5e0 fs/ext4/inode.c:2964
 do_writepages+0x1a8/0x640 mm/page-writeback.c:2551
 __writeback_single_inode+0x121/0xdc0 fs/fs-writeback.c:1600
 writeback_sb_inodes+0x54d/0xe70 fs/fs-writeback.c:1891
 __writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1962
 wb_writeback+0x7e9/0xa50 fs/fs-writeback.c:2067
 wb_check_old_data_flush fs/fs-writeback.c:2167 [inline]
 wb_do_writeback fs/fs-writeback.c:2220 [inline]
 wb_workfn+0x765/0xfc0 fs/fs-writeback.c:2248
 process_one_work+0x991/0x15c0 kernel/workqueue.c:2390
 worker_thread+0x669/0x1090 kernel/workqueue.c:2537
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>