INFO: task syz.3.553:6529 blocked for more than 145 seconds.
      Not tainted 6.1.124-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.553       state:D stack:25280 pid:6529  ppid:4263   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5241 [inline]
 __schedule+0x143f/0x4570 kernel/sched/core.c:6558
 schedule+0xbf/0x180 kernel/sched/core.c:6634
 io_schedule+0x88/0x100 kernel/sched/core.c:8786
 folio_wait_bit_common+0x878/0x1290 mm/filemap.c:1324
 lock_page include/linux/pagemap.h:995 [inline]
 pickup_page_for_submission fs/erofs/zdata.c:1348 [inline]
 z_erofs_submit_queue fs/erofs/zdata.c:1541 [inline]
 z_erofs_runqueue+0xa59/0x1e10 fs/erofs/zdata.c:1613
 z_erofs_readahead+0xc26/0x1030 fs/erofs/zdata.c:1760
 read_pages+0x17f/0x830 mm/readahead.c:161
 page_cache_ra_unbounded+0x68b/0x7b0 mm/readahead.c:270
 do_page_cache_ra mm/readahead.c:300 [inline]
 force_page_cache_ra+0x2a3/0x300 mm/readahead.c:331
 force_page_cache_readahead mm/internal.h:125 [inline]
 generic_fadvise+0x553/0x7b0 mm/fadvise.c:107
 vfs_fadvise mm/fadvise.c:185 [inline]
 ksys_fadvise64_64 mm/fadvise.c:199 [inline]
 __do_sys_fadvise64 mm/fadvise.c:214 [inline]
 __se_sys_fadvise64 mm/fadvise.c:212 [inline]
 __x64_sys_fadvise64+0x138/0x180 mm/fadvise.c:212
 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: 0033:0x7f6efe785d29
RSP: 002b:00007f6eff698038 EFLAGS: 00000246 ORIG_RAX: 00000000000000dd
RAX: ffffffffffffffda RBX: 00007f6efe975fa0 RCX: 00007f6efe785d29
RDX: 000000000000ff39 RSI: 000000000000aa1f RDI: 0000000000000005
RBP: 00007f6efe801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f6efe975fa0 R15: 00007ffd84212bd8
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8d32b290 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff8d32ba90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:517
1 lock held by khungtaskd/28:
 #0: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 #0: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
 #0: ffffffff8d32b0c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6510
2 locks held by getty/4010:
 #0: ffff88807e388098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
 #1: ffffc9000325e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2198
1 lock held by syz.3.553/6529:
 #0: ffff888071c738a8 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:813 [inline]
 #0: ffff888071c738a8 (mapping.invalidate_lock#3){.+.+}-{3:3}, at: page_cache_ra_unbounded+0xed/0x7b0 mm/readahead.c:226
1 lock held by syz.2.933/7957:
1 lock held by dhcpcd-run-hook/7983:

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.124-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1ae/0x3f0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
 watchdog+0xf88/0xfd0 kernel/hung_task.c:377
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7987 Comm: sed Not tainted 6.1.124-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:check_preemption_disabled+0x63/0x110 lib/smp_processor_id.c:19
Code: 44 24 08 0f 85 c7 00 00 00 89 d8 48 83 c4 10 5b 41 5c 41 5e 41 5f c3 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 <74> c9 49 89 f6 49 89 ff 65 4c 8b 25 cd b0 4f 75 41 f6 44 24 2f 04
RSP: 0000:ffffc90004d679a0 EFLAGS: 00000046
RAX: 0000000080000000 RBX: 0000000000000001 RCX: ffff88802889d940
RDX: 0000000000000000 RSI: ffffffff8b0c1020 RDI: ffffffff8b5e6840
RBP: 00000000ffffffff R08: dffffc0000000000 R09: fffffbfff1d36176
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000246
R13: ffff88802889d940 R14: 00000000ffffffff R15: ffffffff8d32b040
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f72e94a20a0 CR3: 00000000561cd000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 lockdep_recursion_inc kernel/locking/lockdep.c:462 [inline]
 lock_is_held_type+0x76/0x180 kernel/locking/lockdep.c:5704
 lock_is_held include/linux/lockdep.h:283 [inline]
 __might_resched+0xf0/0x780 kernel/sched/core.c:9917
 might_alloc include/linux/sched/mm.h:274 [inline]
 slab_pre_alloc_hook+0x4a/0x300 mm/slab.h:710
 slab_alloc_node mm/slub.c:3318 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc+0x4e/0x2d0 mm/slub.c:3422
 anon_vma_alloc mm/rmap.c:93 [inline]
 __anon_vma_prepare+0xb7/0x400 mm/rmap.c:202
 anon_vma_prepare include/linux/rmap.h:159 [inline]
 do_cow_fault mm/memory.c:4645 [inline]
 do_fault mm/memory.c:4760 [inline]
 handle_pte_fault mm/memory.c:5029 [inline]
 __handle_mm_fault mm/memory.c:5171 [inline]
 handle_mm_fault+0x49c6/0x5340 mm/memory.c:5292
 do_user_addr_fault arch/x86/mm/fault.c:1340 [inline]
 handle_page_fault arch/x86/mm/fault.c:1431 [inline]
 exc_page_fault+0x26f/0x620 arch/x86/mm/fault.c:1487
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:608
RIP: 0033:0x7f72e9722105
Code: 47 d6 4d 89 d7 4d 39 d0 73 7f 44 89 d8 83 e0 02 89 85 f4 fe ff ff 74 3e 4c 89 f9 31 c0 4c 89 c7 4c 29 c1 83 bd f4 fe ff ff 00 <f3> aa 75 5b 48 8b 35 88 79 02 00 44 89 da 44 89 9d f4 fe ff ff 48
RSP: 002b:00007ffc26c22620 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 00007ffc26c226c8 RCX: 0000000000000f60
RDX: 0000000000000003 RSI: 0000000000001000 RDI: 00007f72e94a20a0
RBP: 00007ffc26c229f0 R08: 00007f72e94a20a0 R09: 000000000000b000
R10: 00007f72e94a3000 R11: 0000000000000003 R12: 00007f72e9719ac0
R13: 00007ffc26c22a78 R14: 00007f72e94a4888 R15: 00007f72e94a3000
 </TASK>