INFO: task syz.3.404:9904 blocked for more than 143 seconds.
      Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.404       state:D stack:22672 pid:9904  tgid:9836  ppid:9258   flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
 rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
 __down_write_common kernel/locking/rwsem.c:1304 [inline]
 __down_write kernel/locking/rwsem.c:1313 [inline]
 down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
 inode_lock include/linux/fs.h:818 [inline]
 bch2_fallocate_dispatch+0x1e2/0x540 fs/bcachefs/fs-io.c:771
 vfs_fallocate+0x569/0x6e0 fs/open.c:327
 ksys_fallocate fs/open.c:351 [inline]
 __do_sys_fallocate fs/open.c:356 [inline]
 __se_sys_fallocate fs/open.c:354 [inline]
 __x64_sys_fallocate+0xbc/0x110 fs/open.c:354
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdc4cb85d29
RSP: 002b:00007fdc4d9ee038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fdc4cd76080 RCX: 00007fdc4cb85d29
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000004
RBP: 00007fdc4cc01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000404042bbe R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fdc4cd76080 R15: 00007ffee870a288
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
 watchdog+0xff6/0x1040 kernel/hung_task.c:397
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 14991 Comm: rm Not tainted 6.13.0-rc5-syzkaller-00004-gccb98ccef0e5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:alloc_pages_mpol_noprof+0xa5/0x680 mm/mempolicy.c:2231
Code: 89 04 31 e8 0d 51 9f ff 48 8d 4c 24 70 48 89 c8 48 c1 e8 03 48 89 44 24 18 42 0f b6 04 30 84 c0 0f 85 a6 04 00 00 89 5c 24 70 <44> 89 ff 4c 89 ee 4c 89 64 24 30 4c 89 e2 e8 38 f4 ff ff 49 89 c4
RSP: 0000:ffffc9000cab7580 EFLAGS: 00000297
RAX: 0000000000000004 RBX: 0000000000000000 RCX: ffffc9000cab75f0
RDX: 000000000cab7503 RSI: 0000000000000000 RDI: 0000000000140cca
RBP: ffffc9000cab7650 R08: 0000000000000000 R09: ffffffff820004d6
R10: 0000000000000002 R11: ffff88801c7b5a00 R12: 0000000000000000
R13: ffffffff9a3d6ea0 R14: dffffc0000000000 R15: 0000000000140cca
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcedfcd3618 CR3: 0000000071d9a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 folio_alloc_mpol_noprof mm/mempolicy.c:2287 [inline]
 vma_alloc_folio_noprof+0x12e/0x230 mm/mempolicy.c:2317
 folio_prealloc+0x2e/0x170
 wp_page_copy mm/memory.c:3367 [inline]
 do_wp_page+0x1253/0x49b0 mm/memory.c:3759
 handle_pte_fault+0xfa5/0x5ed0 mm/memory.c:5817
 __handle_mm_fault mm/memory.c:5944 [inline]
 handle_mm_fault+0x1053/0x1ad0 mm/memory.c:6112
 do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
 handle_page_fault arch/x86/mm/fault.c:1481 [inline]
 exc_page_fault+0x459/0x8b0 arch/x86/mm/fault.c:1539
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fcedff6a2d7
Code: 14 c6 48 83 c2 10 eb 9c 49 8b 04 24 48 85 c0 0f 84 84 00 00 00 41 f6 84 24 1e 03 00 00 20 75 79 49 8b 54 24 60 48 85 d2 74 04 <48> 01 42 08 49 8b 54 24 58 48 85 d2 74 04 48 01 42 08 49 8b 54 24
RSP: 002b:00007ffea92913a0 EFLAGS: 00010202
RAX: 00007fcedfcb0000 RBX: 0000000000000032 RCX: 0000000000000029
RDX: 00007fcedfcd3610 RSI: 00007fcedff5c000 RDI: 000000006fffffff
RBP: 00007ffea9291500 R08: 000000006ffffdff R09: 000000006ffffeff
R10: 000000006fffff41 R11: 000000006ffffe35 R12: 00007fcedff5bfc0
R13: 00007ffea9291588 R14: 0000000070000022 R15: 00000000effffef5
 </TASK>